Electrical Measurement ELECTRICITY & ELECTRONICS Multimeters continued Multimeter for PC Digital Multimeter DM-921 This Digital Multimeter can be connected to a computer so that the computer screen displays the current reading in digital or analogue form and also as a Auto ranging 2000 counts. Range hold with over range indication. Data table and graph. Measurement data can be saved to your computer and then hold. Max hold. Auto power off. Temperature. Impact resistant rubber and opened in a spreadsheet (e.g. Excel) or word processor .In addition to voltage, ABS plastic case with a flip-out desk stand. 34mm LCD with large digits. current, resistance and capacitance the multimeter can also measure frequency Auto polarity indication. Fast blow fuse for overload protection. Low battery and temperature. The software included is compatible with Windows XP, Vista indication. Supplied with soft zip carry pouch, 2 test leads and battery and K and Windows 7. The multimeter is connected to the PC via a USB cable. Type temperature bead probe. Features & Specifications: • Voltage range DC: 0-600mV, 6V, 60V, 600V, 1000V • Voltage range AC: 0-600mV, 6V, 60V, 600V, 700V • Current range DC and AC: 0-600µA, 6mA, 60mA, 600mA, 6A, 10A • Resistance: 0-600Ω, 6kΩ, 60kΩ, 600kΩ, 6MΩ, 60MΩ • Capacitance range: 0-60nF, 600nF, 6mF, 60mF, 300mF • Frequency range: 0-100 Hz, 1 Hz, 10 kHz, 100 kHz, 1000 kHz • Temperature range : -55° C to 1000°C • Lead tester, diode test, relative value, hold, max and min • Display: 4 digit LCD, digit height 19mm • Built in Light • 9V battery included • Dimensions (L x W x D): 180 x 85 x 45mm • Weight: 300g • Instructions included • Test Leads, wire sensors for temperature measurement, software and USB cable included EL72555 £40.10 ea SPARES & ACCESSORIES £3.83 ea BA01970 PP3 Battery Autoranging Multimeter with Auto-Fuse EL130605 £81.25 ea SPARES & ACCESSORIES £3.83 ea Autoranging Digital Multimeter with auto fuse - no more blown fuses to replace BA01970 PP3 Battery - it just beeps! This 3 3/4 digit multimeter has a self-resetting circuit breaker, automatic range selection and automatic shutdown. Now you no longer need to replace fuses when used incorrectly! Multimeter includes the following functions: Diode Test; Continuity Buzzer; Auto/manual Ranging; Data Hold; Relative Measurement; Back Light. Please note: to measure frequencies below 1.5€kHz, set the mode to VDC, and press the Hz/% button. Specifications: • Voltage range: AC 0 - 750V ± 0.8% • Voltage range: DC 0 - 1000V ± 0.8% • Current range: AC 0 - 10A ± 1.2% • Current range: DC 0 - 10A ± 1.5% • Resistance range: 0-40 Mâ—¦ ± 2.0% • Capacitance range: 0 to 200°F ± 3.0% • Frequency range: 0-10 MHz ± 2.0% • Operating voltage: 9V PP3 battery • (included) Dimensions (W x L x D): 78 x 185 x 38mm • Weight: 285g • Protective Rubber sleeve, test cables and manual included. ...high specification OUR EXPERTS SAY... multimeter with all the test leads, sensors for temperature measurement, software plus USB cables are all included. A complete package EL130600 £43.69 ea that brings connectivity to your SPARES & ACCESSORIES £3.83 ea BA01970 PP3 Battery computer simple and efficient. Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 299
ELECTRICITY & ELECTRONICS Electrical Measurement Joulemeters Joulemeter, Low Voltage, Premium Joulemeter, Low Voltage This meter is capable of measuring energies from 1 mJ to 9999 J or power from 1 mW to 200 W in AC or DC circuits. Two ranges selected by a switch This updated USB version of the low voltage Joulemeter includes datalogging labelled mJ/mW and J/W are available. The auto-ranging four digit display will and an improved specification and can be used with or without a computer. give direct readings of energy or power. The maximum current input is 10 A. Designed to be simple enough to use at KS3, and flexible enough for more All electrical connections are via 4 mm sockets. advanced use at KS4 and beyond, the Joulemeter simply requires an input supply and a load to be plugged in (e.g. a solar panel and a motor) and the • Supply voltage: 20 V DC, 14 V AC (rms) meter will display the values of the power and the energy transferred. For • Input resistance: (No load) 2Mâ—¦ simplicity, the instrument automatically adjusts the display to show suitable • Max load current: J/W range - 10 A, mJ/mW range - 10 mA units and an appropriate number of decimal places, so that it can deal with • Max energies: J range - 9999 J, mJ range - 9999 mJ a very wide range of values (e.g. for energy, from 100 nanojoules up to • Max power: W range - 200 W 1.75 megajoules). This version of the Joulemeter functions almost identically to the previous version but in addition the meter also keeps a log at the chosen sample rate when the total energy transferred is being measured; the data can then be loaded on to a PC using free mini-datalogger software. The function button allows any of four settings to be selected for the required quantity to be measured (energy and time; power; average power; voltage, current and power). • Current range: ±7 A (current can flow in either direction) • Voltage range: ±25 V • Log memory: 2500 samples • Log sample period: 1, 2, or 4 seconds • Powered via USB or using the 5 V mains adaptor (included) BEST EL81448 £272.04 ea SELLER Mains Power/Joule Meter A meter for measuring the power consumption of any mains operated appliance. Rotating disc and digital readout in kWh. 240V, 13A. Please note: These are re-conditioned meters as new ones are no longer available. EL71430 £81.25 ea Mains Power & Energy Meter, Digital This plug-in power meter monitors and measures the energy/power consumption and running costs of connected electrical appliances. Measures voltage, current, power, frequency, power factor, usage and costs; adjustable price per kWh for 2 prices; memory for cumulative energy usage, total costs and costs by price setting; Large LCD; 12/24 hour clock with day/hour/minute; Clear function clears all data in memory including current time; supplied with batteries. Voltage: 200-276 V AC; Current: 0.02-16 A; Power: 5-3588 W; Frequency: 45-65 Hz; Energy: 0-9999.9 kWh; Power Supply: 230-240 V AC 50 Hz; Max. load: 13 A, 3120 W; Power: 3 x 1.5 V button cell batteries (supplied). BEST SELLER EL81445 ✓ £82.44 ea EN101550 ✓ £27.44 ea 300 …inspiring tomorrow’s scientists through practical science.
Oscilloscopes ELECTRICITY & ELECTRONICS Picoscopes Digital Oscilloscopes Dual Channel Picoscopes PC Oscilloscope, 60 MHz This range of PicoScopes are extremely versatile, with an Oscilloscope, A high bandwidth PC oscilloscope offering all the features of a standard spectrum analyser and arbitrary waveform generator in each model. Their oscilloscope but with the added benefits of compact size, portability and easy to compact size makes them extremely portable and the cases are very robust. use software (included). Connections are simple, comprising, channel A, channel B, signal out and USB Minimum PC requirements: Pentium(R) 4 2.4 GHz; 1 GB RAM; 1 GB minimum socket. Dimensions (L x W x H): 100 x 135 x 45mm. disk space The USB (2.0) provides power, eliminating the need for an external power OS: Windows XP/Vista/7/8 supply. The USB connection facilitates high speed data transmission. Ports: USB 2.0; USB 1.1 The Windows software supplied with each PicoScope is very simple to use. It features an auto setup function which reduces setup time to a few minutes. •Display Resolution: 1024 x 768 Updates to the software are provided free of charge. USB isolation - less signal inference, Both models have input ranges of: ±50 mV, ±100 mV, ±500 mV, ±1 V, ±2 V, more PC protection ±5 V, ±10 V ±20 V. Specification: • USB powered Model: Picoscope 2204 • Ultra-thin body design for easy • Bandwith (MHz): 10 storage & portability • ETS (GS/s): 5.0 • Sampling rate (MS/s): 100 Bandwidth 60 Hz • Scale (ns-s/div): 2-50 Sample rate 500 MS/s Record length Model: Picoscope 2205 Trigger options 10 M edge, video, slope, pulse, and alternate • Bandwith (MHz): 20 EL170110 • ETS (GS/s): 10.0 £312.50 ea • Sampling rate (MS/s): 200 • Scale (ns-s/div): 1-50 PC Oscilloscope Signal Generator Output: A PC based oscilloscope with all the features of a standard oscilloscope plus the benefits • Buffer Size: 4k words of compact size and inclusive software which • Vertical Resolution: 8 bits is simple and intuitive to use. • Output Range: ±125 mV to ±2 V pk-pk with ±1 V offset • Output Resistance: 600 Ω Minimum PC Requirements: Pentium (R) • Clock Frequency: 2 MHz 4 2.4 GHz processor; 1GB memory; 1GB • Bandwidth: DC to 1 MHz minimum disc space; Display Resolution: 1024 x 768; USB2.0 port Operating system: Windows XP, Windows Vista, Windows 7 A BEST Bandwidth 25 MHz Channel 2+1 (external) EL81422 Type SELLER Sample Rate EL81424 Horizontal Scale 100 MS/s A PicoScope 2204 B Rise Time 5 ns/div - 100 s/div B PicoScope 2205 £156.19 ea Record Length ✓ £249.94 ea Input Coupling max 14 ns Input Impedance 5k Max input voltage Channels Isolation AC DC GND DC Gain Accuracy 1 MO 2 %, in parallel with 10 pF-5 pF Vertical Resolution Vertical Sensitivity 400 Vpk-pk Trigger type 50 Hz 100:1, 100 MHz 40:1 Trigger mode Trigger level 3% Acquisition mode 8 bit Waveform Maths 5 mV/div - 5 V/div Lissajou figure bandwidth Edge, Pulse, Video, Slope, Alternate Lissajou figure phase difference Auto, Normal, Single Common interface 25 MHz Power Sample, Peak, Detect, & Average Dimensions +, -, x, /, FFT Weight full bandwidth OS150000 3° USB 2.0 5 V 1 A <1.5 W 170 x 120 x 18 mm 0.26 kg £156.25 ea Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 301
ELECTRICITY & ELECTRONICS Oscilloscopes Digital Oscilloscopes continued SDS1022 Oscilloscope Digital Storage Oscilloscope A digital storage oscilloscope, designed with simplicity in mind. The vast array 2 Channel 25 MHz Digital Storage Oscilloscope from Uni-T, designed of advanced measuring options found in most digital oscilloscopes is mostly specifically for analysing high-speed electrical signals and ideal for many omitted, leaving only the essential features required in schools. This means the advanced applications in education, research and development. Packed with unit is very accessible for students and teachers alike. superb features, including a bandwith of 25 MHz, this unit stores and analyses •••••• the signal digitally rather than using analogue techniques, and is now the most 7” colour screen (800 x 600) mm common type of oscilloscope in use because of the advanced trigger, storage, 20 MHz Bandwidth display and measurement features which they typically provide. Sample rate: 100 MS/s Dual channel Specifications and Features: Automatic measurement Dimensions: 301 x 152 x 70 • Model: UDT2025C • Bandwidth: 25 MHz NEW • Sample range: 250MS/s • Vertical sensitivity: 2 mV/div to 10 V/div • Record length (max): 2x 512k • Sample rate: Real time 250 MS/s • Trigger type: Edge, Pulse, Video and Alternate • Ports: Standard: USB Device, USB Host, RS232. Optional: LAN • Display: 64k, Full colour LCD, 320 x 240 • LCD Size: Diagonal 145 mm (5.7 inches) • Power: 100 - 240 V AC • Dimensions (L x H x D): 330 x • 165 x 165mm Includes manual OS180100 ✓ £243.75 ea Colour Digital Oscilloscope OS130500 £437.50 ea The SDS5032E is a general purpose 2 channel digital oscilloscope with a Digital Storage Oscilloscope, 60mHz large 200mm colour display, making it ideal for education and industrial environments. Complete with USB output to PC. The Voltcraft DSO-1062D 2-Channel Oscilloscope is an entry-level model in Specifications and Features: the field of digital storage oscilloscopes. The device has two channels with a bandwidth of 60MHz and a real-time sampling rate of max. 1 GS/s and a • Bandwidth: 30MHz memory depth of 512 kpts. • Sample Rate (real time): 250MS/s • Horizontal Scale (s/div) 4ns/div~100s/div, step by 1~2~4 Up to 1Mpts are available if only one channel is used. The DSO-1062C is • Rise Time (at input, typical) ≤11ns almost unbeatable value for money with its large 17.7cm 800 x 480 pixel • Channels: 2 + 1 (external) colour display and USB host for storing data on an optional stick. • Display: 20cm (8”) colour LCD, TFT display, 800 x 600 pixels, The DSO-1062D is completed by a USB interface, multilingual Help menu, 65535 colours extensive trigger possibilities, automatic measuring functions including FFT and standard software included in the delivery. • Input Impedance: 1MΩ ± 2%, in parallel with 15pF±5pF Specifications and Features: • Channel Isolation: 50Hz: 100: 1, 10MHz: 40: 1 • Max Input Voltage: 400V (PK - PK) (DC+AC, PK - PK) • 60MHz bandwidth • DC Gain Accuracy: ±3% • 1 GS/s real time sampling rate, equivalent to 25GS/s • Record Length: 10K • Supplied with Voltcraft DSO-1062D, 2 probes (each 1:1 / 10:1), Power • DC Accuracy (average): Average≥16: ± (3% reading + 0.05 div) for △V • Probe Attenuation Factor: 1X, 10X, 100X, 1000X cord USB cable, software, detailed instruction manual (English), Quick • Sample Rate / Relay Time Accuracy: ±100ppm • Input Coupling: DC, AC, and GND • Start Guide (Multilingual) • Vertical Resolution (A/D): 8 bits resolution (2 Channels simultaneously) 2 probes (each 1:1/10:1), Power cable, USB cable, Software, Detailed • Vertical Sensitivity: 5mV/div~10V/div (at input) user manual (English), Quick instructions (Multilingual). • Trigger Type: Edge, Pulse, Video, Slope • Trigger Mode: Auto, Normal, Single • Accuracy: ±3% • Trigger Level: ±6 divisions from screen centre • Bandwidth: 60MHz • Line / Field Frequency (video): NTSC, PAL, and SECAM standard • Calibration possible to: ISO / DKD • Waveform Math: +, -, x, ÷, FFT • Channel type: 2 • Waveform Storage: 15 waveforms • Dimensions: 313(W) x 142(H) x 108(D)mm • Lissajous Figure Bandwidth: Full bandwidth • Display type/resolution: 800 x 400 pix • Lissajous Figure Phase Difference: ±3 degrees • Displays: LCD • Communication Interface: USB, USB flash disk storage, Pass / Fail, LAN, • Input coupling: DC/AC/GND • Input impedance: 1MΩ VGA (optional) • Input voltage range: 2mV to 100V (DC/ACpp) • Interfaces: 1x USB • Power Supply 100V - 240V AC, 50/60Hz, CAT II • Mathematics functions: Pk-pk, max, min, effective value, cyc. RMS, Hz, • Power Consumption <18W • Fuse 2A, T class, 250V period, rise/fall time, pos/neg half-wave • Battery not supported • Dimension (WxHxD) 348 x 170 x 78 (mm) • Max. power consumption: 30W • Weight: 1.50 kg • Memory depth: 1 MPts (single), 512 kPts (dual) •• POopweerar tsiuopnptlyyp:e1:0C0HV1A,CCHto2,2d4u0aVl,AXCY BEST • Resolution: 8-bit • Sampling rate: 1GS/s (single mode), 500 MS/s (dual mode) SELLER • Screen size: 17,7cm • Timebase range: 4ns to 40s/div • Triggering: DC, AC, HF, LF, noise, • EXT, EXT/5 Type (manufacturer type): DSO- 1062D • Vertical deflection: 2mV to 5V/div • Weight: 2kg EL101460 ✓ £368.75 ea EL160650 £431.25 ea 302 …inspiring tomorrow’s scientists through practical science.
Oscilloscopes ELECTRICITY & ELECTRONICS CROs Dual Trace Oscilloscope Oscilloscope, Single Channel This dual channel oscilloscope offers exceptional value in terms of price and performance. With frequency bandwidth of 10 or 20 MHz bandwidth and Our single channel value oscilloscope features an 8 x 10 division screen, X-Y sensitivity ranges of; 1 mV/div - 1 V/div or 5 mV/div to 5 V/div. Display size: modes and built in probe calibration signals. Triggering modes are Auto, Norm 150 mm diagonal flat screen. and TV and X1/X10 probes are included. Specifications and Features: Specifications and Features: • Single channel, 10 MHz • Dual channel, 20 MHz • Screen size 8 x 10, 1 div = 6 mm • High sensitivity • Vertical input 5 mV - 5 V/div • Full 80 x 100 mm rectangular screen with scale illumination • Horizontal 0.1 S/div - 0.1 uS/div • Excellent triggering facilities • Triggering mode Auto, Norm, TV • Ideally suited to education applications • Trigger source INT, LINE, EXT • A well presented front panel ensures quick and easy operation • Input voltage 110/220 V +/- 10 % AC • Variable hold-off function • Dimensions (W x L x H): 220 x 270 x 90mm • Convenient X-Y operation mode allows phase difference between • Weight 3 kg • measurements between two waveforms BEST Carrying handle, which may be locked into any position, also doubles as SELLER • a tilt stand Supplied complete with mains lead and comprehensive instruction manual • Probes not included • Dimensions (L x W x H): 324 x 398 x 132mm • Weight: 7.5 kg EL101464 ✓ £212.44 ea EL81502 £618.75 ea Oscilloscope Accessories 3.5 mm to 4 mm plug leads BNC Connecting Leads & Adapter A 3.5€mm headphone plug connected to 2x€4€mm plugs, for taking audio output from an MP3 player, phone etc. Approximately 65€cm long. Leads come ready assembled with moulded-on strain reliefs. EL160100 £8.69 ea Microphone A microphone unit for use with an oscilloscope to demonstrate voice waveform. Crystal microphone mounted in a moulded plastic box with 4mm connection. Impedance 1Mâ—¦. Dimensions (L x W x H): 55 x 110 x 22mm. BEST SELLER EL18512 Type £4.94 ea SO86270 ✓ £44.64 ea EL18513 £7.44 ea EL18514 BNC Plug to BNC Plug £10.31 ea EL18516 BNC Plug to Crocodile Clips £6.56 ea BNC Plug to Stackable 4mm Plugs BNC Plug to 4mm sockets Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 303
ELECTRICITY & ELECTRONICS Capacitance & Charging ● Resistance Capacitance Selector Capacitor Investigation Demo Board Twelve non-electrolytic capacitors selected by This is a highly useful demo board, it makes the student to understand the a rotary switch mounted on the outer casing. charging and discharging of the capacitors. Here the external + 12V DC Capacitance values available: 100pF; 220pF; supply is used for charging the capacitors through the current limiting resistors. 470pF; 2.2nF; 4.7nF; 10nF; 22nF; 47nF; 220nF; The charging curve/time can be viewed on CRO. Once the capacitor is fully 1µF. Connection by 4mm sockets. charged, it can be discharged with the help of toggle switch (turning towards discharge). Again the discharge EL110300 curve/time can be viewed on CRO. This phenomenon can also be demonstrated using current meter, only the polarity of motor should be connected properly. Here three different combinations of C & R are provided for observing different wave forms. £54.59 ea EL71405 £66.33 ea Resistance Resistance Selector Mounted Resistance Coils Mini substitution unit using a single rotary switch to select from twelve values all This useful apparatus nicely demonstrates how electrical resistance varies at 5% 0.5W. Values in â—¦ are 100, 330, 470, 680, 1k, 3.3k, 4.7k, 6.8k, 10k, with the length of wire, diameter of wire and type of wire. The wires are 33k, 47k and 100k. Connections via 4mm sockets. wound on bobbins, for convenience, and the resistances can be compared by simply connecting a suitable multimeter or ohm meter across the terminals for each coil, in turn. Lengths and diameters of wires are in two to one ratios to simplify calculations. The apparatus comprises a set of five coils wound on identical bobbins and mounted on a base, with six 4mm sockets for electrical connections. Various coils are: • No. 1: Copper wire, 32SWG x 10m • No. 2: Copper wire, 38SWG x 10m • No. 3: Copper wire, 32SWG x 20m • No. 4: Copper wire, 38SWG x 20m • No. 5: Nichrome wire, 38SWG x 10m EL71455 £41.86 ea Decade Resistance Box EL130700 £37.00 ea A four decade resistance box covering 1 to 9999â—¦ in 1â—¦ steps. Plastic USEFUUsLefEulLEElCecTtrRicIaCl AFoLrmulae INFO enclosure box with resistance values 5% tolerance. Dimensions (L x W x H): FORMULAE 165 x 80 x 50mm. TECHNICAL EL71415 £62.47 ea Resistance Substitution Box A 6 decade resistance substitution box ideally suited for school or college use. The box will simulate resistances from 1 to 999,999â—¦ in 1â—¦ steps. The value selected is clearly indicated on the dials. OHM’S LAW: V=IR so R=V/I & I=V/R Total resistance Resistors in series: Rtotal = R1 + R2 + R3 Resistors in parallel: 1/Rtotal = 1/R1 + 1/R2 + 1/R3 EL71460 £37.48 ea 304 …inspiring tomorrow’s scientists through practical science.
Resistance ELECTRICITY & ELECTRONICS Rheostats Sliding Contact Lamp Brightness Apparatus A range of rheostats or potentiometers ideal for school use. Consisting of This unit allows the teacher to safely switch a 12V lamp in series with a mains heavily oxidised resistance wire wound upon a vitreous enamelled steel tube lamp and study the current flow through them. Using the unit provokes thinking and locked into place with ceramic cement, multi-leaf phosphor bronze heavy about power, voltage and energy etc. Students see the need to go beyond duty sliding contact on a nickel plated rod. Robust enamelled die-cast end discussion of current. It may also be used to investigate potential dividers and stands and 4mm socket terminals. Diameter 43mm. resistors in series. Length Diameter Current Resistance EL18540 200 mm 43 mm 0.3 A 1600 Ω £38.59 ea EL18541 200 mm 43 mm 0.6 A 600 Ω £37.64 ea EL18542 200 mm 43 mm 0.9 A 300 Ω £24.38 ea EL18543 200 mm 43 mm 1.4 A 135 Ω £37.64 ea EL18544 200 mm 43 mm 2.3 A 55 Ω £41.84 ea EL18545 200 mm 43 mm 4A 16 Ω ✓ £41.84 ea EL18546 200 mm 43 mm 5A £38.74 ea EL18552 300 mm 43 mm 1.8 A 8.5 Ω £34.58 ea EL18553 300 mm 43 mm 3.2 A 125 Ω £38.81 ea EL18554 300 mm 43 mm 4.5 A 37 Ω £54.79 ea EL18555 300 mm 43 mm 9A 20 Ω £35.28 ea 4.5 Ω ...an essential product EL71420 £47.44 ea to help students OUR EXPERTS SAY... understand electrical resistance in a Electrical Resistance Tester Kit metal caused by electrons colliding An extremely useful and versatile kit to aid the teaching and understanding of electrical resistance. A pencil line can be drawn across the circuit board with atoms. A rheostat (variable resistor) and the brightness of the LED noted. The line can then be made thicker, or a second line drawn in parallel and the LED will be brighter. The line length can controls the current in a circuit, and so be changed and the kit can be used to compare conductors and insulators, including testing the whole class of students by getting them to link hands to can vary the brightness of a bulb or the make a circuit! The conductivity of liquids can also be tested by placing the narrow end of the board into the liquid to be tested. speed of a motor. Contents: Resistance Wire Board • PP3 battery This apparatus provides the basis for student investigations into resistance. • Crocodile clip lead Four wires, 500mm long mounted on an acrylic base and connected via 4mm • eraser (to rub out the pencil lines after use) sockets. The wires are all Nichrome with diameters of 1.0, 0.8, 0.63 and • 3B pencil 0.4mm giving resistances in the range 0.4 to 4 ohms. A graduated mm scale is • comprehensive instructions included allowing resistance V length and resistance V diameter investigations to be easily covered. Dimensions (L): 500mm. EL71445 £115.26 ea EL110305 £15.00 kit Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 305
ELECTRICITY & ELECTRONICS Resistance Potentiometer Teledeltos Conductive Paper Slide wire pattern mounted on a rigid anodized aluminium base fitted with a High resistance conductive paper. Suitable for: (e.g.) Electric field plotting. metric scale with two equal lengths of constantan wire running across their Simple strip resistors (or variable resistors using 2 mounted strips with length. Connection to the resistance wires is made via 4 mm sockets. Resistance conductive surfaces in contact, overlaying by varying amounts). wires located along the meter rules, giving a total length of 2 metres. Complete with knife jockey. Resistance of wire approx 2 Ω/m. EL91430 Dimensions £9.94 ea 457 mm x 1 metre (W x L) Resistance Putty Conducting putty is a useful aid to teaching resistivity and the relationship between length and cross-sectional area on resistance. A cylinder 60mm long and 20mm in diameter has a resistance of approximately 20â—¦. Can readily be connected into an electrical circuit and both length and diameter can easily be altered by ‘re-moulding’ the putty. Although harmless, plastic gloves are provided to prevent hands from becoming stained. Approx. 100g. EL52260 £50.90 ea £7.88 ea SPARES & ACCESSORIES EL52265 Spare Jockey Wheatstone Bridge EL91440 £18.88 ea Slide wire pattern with four gaps for known and unknown resistors. A straight resistance wire stretched along a metric scale mounted on a wooden base. Wire can be easily replaced if damaged or broken. Complete with jockey. All connections are low resistance and via standard 4 mm sockets. Length: 1.5 m. Aluminium Tape A self-adhesive tape with a 30 um aluminium layer. Applications include PCB track repair, RF screening enclosures and simple ‘broken window’ detectors. 25 mm x 4.6 m roll. EL170740 £7.51 ea Thermistor This apparatus contains an NTC bead thermistor with a nominal resistance of 4.7kâ—¦ in a glass tube with electrical connection made by means of 4mm sockets. Students from KS3 to Post-16 can carry out practical investigations into the thermistor characteristics. Full instructions and specimen results included. Dimensions (L): 220mm. EL52250 £49.94 ea £7.88 ea SPARES & ACCESSORIES EL52265 Spare Jockey EL71480 £38.81 ea Constantan Wire, Bare (Eureka) Temperature Coefficient of Resistance Apparatus Supplied on a reel (60% Copper, 40% Nickel Alloy). These immersible resistors are used to determine the resistance temperature coefficient for various materials. They consist of resistance wire (diameter 0.25 mm) wound on Plexiglas cores with safety jack connectors. The resistance wire is immersed in a non-conductive liquid (e.g. demineralised water, kerosene or mineral oil). By measuring the resistance as a function of temperature the temperature coefficients of the materials can be found. Size 180 mm x 20 mm diameter. The specified resistance values are for 20 °C. swg Diameter Length Resistance Weight Type Resistance per kg 1.8 Ω EL06721 26 3.10 Ω/m 125 g £23.00 ea EL110302 Copper 46.7 Ω £62.44 ea EL06722 28 0.45 mm 708 m 4.40 Ω/m 125 g £23.14 ea EL110303 Constantan 8.7 Ω £62.44 ea EL06723 30 0.37 mm 1020 m 6.30 Ω/m 125 g £23.40 ea EL110304 Nickel £62.44 ea 0.31 mm 1444 m 306 …inspiring tomorrow’s scientists through practical science.
Transformers ELECTRICITY & ELECTRONICS Demountable Transformers Demountable Transformer Coils Demountable Transformer Kit To fit the EL81450 demountable transformer kit. Fits a 40 x 40 mm core. A laminated, low loss core on which to attach coils in different combinations to demonstrate the principle of step-up and step-down transformers. Various coils can be used for GCSE physics and A-Level physics to show how transformers are used in domestic electrical appliances and in the National Grid for power transmission. Demonstrations work well with the Interscale Demonstration Meter EL52300. The core is made up of highly permeable U-shaped metal sheeting, which can be closed via two clamps with tightening screws. The cross-section of the core measures 40 x 40 mm. Contents: • Transformer core • 1x 6000 turn, 0.2 A coil, with tappings every 2000 turns • 1x 1200 turn, 1.25 A coil, with tappings every 400 turns • 1x 72 turn, 12 A coil, with tappings at 6, 30, 54, and 66 turns • 1x 600 turn, 2.5 A coil, with mains input, switch and protective fuse The Premium Version is supplied in a Gratnells tray with insert. NEW EL180820 Type ✓ £187.44 ea EL81452 Type £34.98 ea EL180830 ✓ £306.19 ea EL81454 Coil 50 turns, 4A, 0.15Ω £35.98 ea Standard Version EL81456 Coil 100 turns, 2A, 0.55 Ω £36.36 ea Premium Version £2.53 pk EL81458 Coil 200 turns, 1A, 2.5 Ω £33.09 ea £6.91 ea EL81460 Coil 500 turns, 0.5A, 8.95 Ω (In Starter Kit) £40.09 ea EL81462 Coil 1000 turns, 0.3A, 39.5 Ω £43.84 ea EL81464 Coil 2000 turns, 0.05A, 445 Ω £65.38 ea Mains Coil 1000 turns, 230V, 1A, 13.5 Ω (In Starter Kit) £2.53 pk £6.91 ea SPARES & ACCESSORIES SPARES & ACCESSORIES EL18524 EL18524 EL18517 Slow Blow (Time Delay) Fuse 2 A, x 10 EL18517 Slow Blow (Time Delay) Fuse 2 A, x 10 IEC Mains Leads (Kettle Lead) IEC Mains Leads (Kettle Lead) Transformer Accessory Kit 1 Transformer Accessory Kit 2 Used to demonstrate that step down transformers can produce currents that are Lenz’s law transformer accessory kit to demonstrate the production of large large enough to weld metals or boil water. magnetic fields and Lenz’s law damping on pendulums with and without slits. EL81466 £90.14 kit EL81468 £88.50 kit Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 307
ELECTRICITY & ELECTRONICS Transformers Demountable Transformers continued U-Core With Armature Transformer Coil Set, Student Laminated U-core with armature and clamp screw. Cross sectional area: 20 x 20mm. Coils to fit EL150800 and EL150806. Made of coloured plastic with 4mm safety jack connectors. Armatures available separately. The coils are provided with a transparent, adhesive polyester foil with effective voltage insulation up to 4500 V to reduce the risk of electric shock. • Hole size: 20.5 x 20.5 mm • Colour: Blue • Number of Windings: 200 • Max. current: 2 A • Resistance: 0.7 Ω • Thread diameter: 0.9 mm • Inductance: Approximately 680 µH EL150800 £56.25 ea E-Core With Armature Laminated E-core with armature. Suitable for the construction of a three-phase transformer. Cross-sectional area: 20 x 20€mm. EL150810 Type Colour £22.44 ea EL150806 £79.94 ea EL150812 £22.44 ea EL150814 200 turns Blue £23.69 ea EL150816 400 turns Yellow £24.31 ea EL150818 600 turns Grey £24.94 ea EL150820 800 turns Grey £28.06 ea EL150822 1600 turns Red £28.69 ea EL150824 3200 turns Grey £29.31 ea 200/400 turns Grey 300/600 turns Grey Cardboard Square For Coil Armature, Laminated This cardboard square has cut-outs for coils EL150810-EL150824. Used for Laminated I-core. Dimensions (W x H x L): 20 x 20 x 83mm. Mass: 225g. demonstrating the magnetic field around a coil using iron filings. MA150416 £0.93 ea EL150802 £17.44 ea Galvanometer Insert Armature, Massive For building a simple galvanometer. The insert consists of a permanent magnet This massive I-core is used for demonstrating the increase in power loss when with a pointer. The device is fitted with a 0-centre scale. Compatible with coils using massive cores instead of laminated EN140105-EN140120 types. When the massive core is used it becomes warmer than the laminated core. Dimensions: 20 x 20 x 83 mm NEW EL180810 ✓ £31.19 ea EL150804 £14.94 ea 308 …inspiring tomorrow’s scientists through practical science.
Transformers ELECTRICITY & ELECTRONICS C-Core & Coils National Grid Simulation Kit C-Core Coils Set To safely demonstrate the need for high voltage transmission of electricity. This apparatus clearly demonstrates how this is achieved using the 2 interconnected A range of sturdy, mounted coils, designed for use with laminated C cores boxes through which pupils can see the components. The high and low voltage and clips. The coils have different numbers of turns of copper wire, allowing sides are clearly indicated, with resistance wires connected to either side for students to investigate the relationship between voltage and number of turns, direct comparison of lamp brightness/energy loss. By gripping the insulated showing how transformers work etc. They can also be used to demonstrate cables the energy loss can be felt in the form of heat. There are also voltmeter electromagnetic induction (Faraday’s law). Coils come complete with 4mm sockets for measuring the high voltage. Comes complete with two boxes sockets and are available individually or as a set of 5 coils: 50 + 100 turns; (transmit and receive), insulated resistance wires, two mounted SBC lamps and 200 + 300 turns; 300 + 350 turns; 400 + 500 turns; 550 + 600 turns. full instructions. • Touchproof, locking high voltage connectors used throughout - it is • virtually impossible to get an electric shock Clear lid to the casing so pupils can see how it works and trace the circuit • Indicators for low/high voltage • Voltmeter sockets for measuring the high voltage • Supplied with 2 x kits to make up the pylons BEST SELLER EL71510 Type £46.99 ea EL71512 £62.47 ea EL71518 Coil 50 + 100 Turns £68.72 ea EL71520 Coil 200 + 250 £256.88 set Coil 550 + 600 £27.33 pr Set of 5 Coils £4.36 ea SPARES & ACCESSORIES Quantity £26.08 ea Type 2 EL130315 C Core each EL130320 C Core Clip 2 (+ 1 clip) EL130325 C Core & Clip National Grid Simulators Mini National Grid Simulator This system is a cost-effective way of teaching the principles used by the National Grid to supply electrical power to our homes. The kit comprises two printed circuit boards and a set of “HT” leads to interconnect them and is SELV (Safety /Separated Extra Low-Voltage) classed, which means that no part of the system is at more than 50 volts - which means it is very safe and suitable for student use. The system allows the user to compare electrical transmission at low and high voltages and the results are displayed by the brightness of the two on-board MES lamps. The only other equipment needed is two standard 4mm plugged leads and a power supply capable of delivering 2-3 volts at 1 amp. EL71435 ✓ £137.44 kit ✓ ✗ £2.63 ea SPARES & ACCESSORIES ✓ £24.94 ea EL06677 Bulbs, SBC Cap EL180437 HT Leads ...by gripping insulated OUR EXPERTS SAY... cables, energy loss can be felt in the form of heat. A great way to safely demonstrate high voltage transmission of electricity. The kits EL110920 £62.44 ea clever design ensure it is virtually SPARES & ACCESSORIES ✗ £2.46 pk impossible to receive an electric shock. EL06650 Bulbs, MES Cap, 0.2 A. 2.5 V, x 10 Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 309
ELECTRICITY & ELECTRONICS Rectifiers ● Mains Accessories Bridge Rectifier Full Wave Bridge With LEDs This convenient and useful apparatus Comprising a plate with four arrow-shaped transforms alternating current (AC) into red LEDs in a diode-bridge arrangement, direct current (DC) using diodes in a with a 4 mm socket at each node. specific arrangement. The Bridge Rectifier consists of four diodes connected in a By using a slow AC power supply (using a bridge circuit, which allows AC current signal generator at <1 Hz) each step in the to be input into the circuit and, by full rectification process can be followed. wave rectification, DC current will be output. The unit has a circuit diagram • Max 15 mA/25 V AC printed on the top so that students may • Plate size: 90 x 90mm gain an understanding of the importance of diodes and how they can rectify £15.91 ea EL150740 £24.94 ea alternating current to direct current. Weight: 0.2kg. Dimensions (L x W x H): Extension Reel 150 x 100 x 100mm. EL120705 Three-core insulated mains cable and a double socket outlet and safety cut-out. Neat holder collects and realigns flex. Mains Accessories Adaptors Mains Adapter Fused. EL06508 Type £5.84 ea 3-Way Breaker EL06520 Type Current £11.43 ea Double Socket 5A Power Breaker Insulation Tape Portable RCD adapter, which provides effective fast acting double pole protection against defective wiring Insulating PVC Tape or earth leakage. The adapter includes Test and Reset switches with visual indication of power status. Plugs 19 mm width. In rolls of 20 m. directly into a 13A socket and accepts any appliance wired to a 13A plug. Trip speed less than 40ms. EL06527 Current Voltage £22.21 ea 13 A 240 V AC £9.76 ea Extension Leads EL06630 Colour Width ✓ £1.23 ea EL06631 £1.23 ea Extension Lead EL110160 Black 19 mm £1.23 ea EL110165 White 19 mm £1.23 ea White 4-gang socket with a 13 A fused EL110170 Red 19 mm £1.23 ea fitted plug of 3-core cable. EL110175 Green 19 mm £1.23 ea Blue 19 mm Yellow 19 mm EL06515 Type Current Mains Leads 4 Gang 13 A IEC Mains Leads (Kettle Lead) Moulded UK mains plug to IEC plug. Surge Protector Extension Lead A 4 gang extension with 2 m lead. Ideal for use with PCs and other sophisticated electronic equipment. This extension lead will protect your equipment from the surges experienced via the national grid or as a result of power cuts and the subsequent reinstatement of power. EL81350 Type £16.89 ea EL18517 Type Length Current £6.91 ea 4-Gang (fused) C13 plug 1.8 m 5A 310 …inspiring tomorrow’s scientists through practical science.
Mains Accessories ● Fuses ELECTRICITY & ELECTRONICS Insulated Wire Terminal Blocks Cable, PVC Insulated 3-Core Cable Terminal Blocks 10 m lengths. For mains use to BS 6500. Set of 12 connectors mounted in plastic body. Which can easily be sub-divided by cutting. EL06751 Current £6.75 ea EL130685 Current £0.75 ea EL06752 ✓ £8.13 ea EL06530 £0.63 ea EL06753 3A EL06535 3A £1.00 ea 6A £11.43 ea 5A 10 A 15 A Fuses Quick Blow Fuses Fuses, Mains, Ceramic Fuses, Quick-Blow, Glass 6.3€x€25.4€mm. 240 V AC. To BS 1362. Supplied in packs of 10. 20€x€5€mm, 250 V AC. Supplied in packs of 10. EL06686 Length Current £3.80 pk EL18518 Current £3.18 pk EL06687 £3.80 pk EL06680 £3.18 pk EL06688 20 x 5 mm 100 mA £3.80 pk EL06681 2A £3.18 pk EL06689 20 x 5 mm 250 mA £2.01 pk EL06683 3A £3.18 pk EL06691 20 x 5 mm 500 mA £2.01 pk 5A EL06692 20 x 5 mm 1A £2.01 pk 13 A 20 x 5 mm 2A 20 x 5 mm 5A Siba Quick Blow Glass Fuses Timeguard Fast Blow Ceramic Fuses A range of Siba 20 x 5mm glass quick blow fuses, designed to IEC127. A range of miniature 20 x 5 mm fast blow ceramic fuses. Supplied in a pack Supplied in a pack of 10. of 10. •••••• • Glass tube with nickel plated brass endcaps Ceramic body material • Breaking capacity 35 A/250 V AC Nickel plated brass end caps • 20 x 5 mm (L x dia.) Rated at 250 V AC Rating Breaking capacity 250 mA to 10 A: 1500 A 12.5 A to 16 A: 1000 A EL160400 Current £1.90 pk EL160450 Current £2.19 pk EL160402 £2.01 pk EL160452 £2.19 pk EL160404 200 mA £1.50 pk EL160454 250 mA £2.19 pk EL160406 315 mA £1.35 pk EL160456 1A £2.19 pk EL160408 800 mA £1.69 pk EL160458 2A £2.19 pk EL160410 1.25 A £1.33 pk EL160460 2.5 A £2.19 pk EL160412 1.6 A £1.35 pk EL160462 5A £2.19 pk EL160414 2.5 A £1.49 pk EL160464 8A £2.19 pk 3.15 A 10 A 10 A 16 A Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 311
ELECTRICITY & ELECTRONICS Fuses ● Wire Slow Blow Fuses Siba Slow Blow Glass Fuses Fuses, Slow-Blow (Time-Delay) A range of Siba 20 x 5mm glass slow blow fuses, designed to IEC127. Supplied in packs of 10. 20 x 5 mm. 250 V AC. Supplied in packs of 10. • Glass tube with nickel plated brass endcaps • Breaking capacity 35 A/250 V AC • 20 x 5 mm (L x dia.) EL18520 Length Current £2.53 pk EL160401 Current £2.81 pk EL18521 £2.53 pk EL160403 £2.81 pk EL18522 20 x 5 mm 100 mA £2.53 pk EL160405 200 mA £2.81 pk EL18523 20 x 5 mm 250 mA £2.53 pk EL160407 315 mA £2.81 pk EL18524 20 x 5 mm 500 mA £2.53 pk EL160409 800 mA £2.81 pk EL18525 20 x 5 mm 1A £2.53 pk EL160411 1.6 A £2.81 pk 20 x 5 mm 2A 2.5 A £27.44 ea 20 x 5 mm 3.15 A 10 A £25.63 ea Fuse Wire Fuse Wire, 3A Fuse Wire, Mixed Pack Silver wire which fuses at 3 A. Ideal for use with the fuse wire holder. Supplied as a reel of 50 m. This pack contains 3 lengths of fuse wire and is ideal for demonstrating the relationship between EL170573 thickness and resistance in fuse wires. The thinner wire can also be used to demonstrate Fuse Wire Holder how a fuse works (requires a power supply capable of delivering a current over 5 Amps). Handy holder for clamping fuse wire, to demonstrate Contents: 1.7m of 5 amp fuse wire (for use in the operation of a fuse in an electrical circuit. The lighting circuits, max circuit loading 1kW); 0.7m holder includes 4 mm sockets, for easy connection of 15 amp fuse wire (for use in mains socket to lab leads, and is designed for use with bare fuse ring circuits, max circuit loading 3kW): 0.5m of wire, which should be pushed into the fuse holder’s 30 amp fuse wire (for use in cooker, shower and clamps. immersion heater circuits, max circuit loading 7kW). EL170575 EL120570 £4.01 ea Wire Constantan Wire Brass Wire Constantan Wire, Bare (Eureka) Brass Wire, Bare Supplied on a reel (60% Copper, 40% Nickel Alloy). EL101440 swg Diameter Weight £7.96 ea EL101441 ✓ £7.96 ea EL101442 30 0.31 mm 50 g 25 0.5 mm 50 g £7.96 ea 22 0.71 mm 50 g Copper Track swg Diameter Length Resistance Weight per kg Copper Track EL06716 16 0.244 Ω/m 125 g ✓ £22.28 ea EL06717 20 1.6 mm 56 m 0.77 Ω/m 125 g £22.44 ea Supplied on a reel with self adhesive EL06718 22 0.9 mm 176 m 1.24 Ω/m 125 g £22.66 ea backing. EL06719 24 0.71 mm 284 m 1.99 Ω/m 125 g £22.88 ea EL06721 26 0.56 mm 456 m 3.10 Ω/m 125 g £23.00 ea EL06758 Length Width £8.80 ea EL06722 28 0.45 mm 708 m 4.40 Ω/m 125 g £23.14 ea 33 metre 5 mm EL06723 30 0.37 mm 1020 m 6.30 Ω/m 125 g £23.40 ea EL06724 32 0.31 mm 1444 m 7.90 Ω/m 125 g £23.64 ea EL06726 34 0.28 mm 1828 m 11.20 Ω/m 125 g £23.91 ea EL06727 36 0.23 mm 2574 m 15.0 Ω/m 125 g £24.38 ea EL06728 38 0.2 mm 3584 m 27.0 Ω/m 125 g £24.88 ea EL18534 18 0.16 mm 6372 m 0.399 Ω/m 125 g £20.35 ea 1.25 mm 90 m 312 …inspiring tomorrow’s scientists through practical science.
Wire ELECTRICITY & ELECTRONICS Copper Wire, Bare Iron Wire Copper Wire, Bare Iron Wire, Bare Supplied on a reel. Please note, this wire rusts very readily and will probably have some surface rust when purchased. swg Diameter Length Resistance Weight EL101445 swg Diameter Weight £7.96 ea per kg EL101446 ✓ £6.29 ea EL06700 14 2 mm 35 m 0.000544 Ω/m 250 g £14.74 ea EL101447 25 0.5 mm 50 g EL06702 16 ✓ £14.91 ea 22 0.71 mm 50 g £15.70 ea EL06703 20 1.6 mm 56 m 0.0085 Ω/m 250 g 22 0.71 mm 1000 g EL06704 22 £15.35 ea EL06706 24 0.9 mm 176 m 0.0269 Ω/m 250 g £15.60 ea Manganin Wire EL06707 26 £15.93 ea Manganin Wire, Bare EL06708 28 0.71 mm 284 m 0.0432 Ω/m 250 g £16.34 ea EL18530 18 £16.75 ea EL18531 30 0.56 mm 456 m 0.0694 Ω/m 250 g £14.89 ea EL18532 32 £17.10 ea EL18533 36 0.45 mm 708 m 0.108 Ω/m 250 g £17.58 ea £18.95 ea 0.37 mm 1020 m 0.155 Ω/m 250 g 1.25 mm 90 m 0.0139 Ω/m 250 g 0.31 mm 1444 m 0.219 Ω/m 250 g 0.28 mm 1828 m 0.278 Ω/m 250 g 0.2 mm 3584 m 0.544 Ω/m 250 g swg Diameter Weight Copper Wire, Enamelled EL30200 20 0.9 mm 50 g £11.39 ea EL30202 22 0.71 mm 50 g £11.39 ea Copper Wire, Enamelled EL30204 24 0.56 mm 50 g £13.86 ea EL30206 26 0.45 mm 50 g ✓ £13.86 ea Supplied on a reel. EL30208 28 0.37 mm 50 g £21.71 ea EL30210 30 0.31 mm 50 g £21.71 ea EL52110 swg Diameter Length Resistance Weight ✓ £7.50 ea Nichrome Wire EL52112 per kg 0.0139 Ω/m 125 g £7.55 ea EL52114 18 1.25 mm 90 m 0.0269 Ω/m 125 g £7.70 ea Nichrome Wire, Bare EL52116 20 0.9 mm 176 m 0.0432 Ω/m 125 g £7.81 ea EL52118 22 0.71 mm 284 m 0.0694 Ω/m 125 g £7.99 ea Supplied on a reel (80% Nickel, 20% Chromium Alloy). EL52120 24 0.56 mm 456 m 0.108 Ω/m 125 g £8.15 ea EL52122 26 0.45 mm 707 m 0.155 Ω/m 125 g £8.29 ea swg Diameter Length Resistance Weight EL52124 28 0.37 mm 1018 m 0.219 Ω/m 125 g £8.45 ea per kg EL52128 30 0.31 mm 1442 m 0.278 Ω/m 125 g £9.00 ea 18 32 0.28 mm 1825 m 0.544 Ω/m 125 g 20 36 0.2 mm 3580 m 22 24 Copper Wire, Tinned EL06731 26 1.25 mm 96 m 0.88 Ω/m 125 g £25.89 ea EL06732 28 £26.10 ea EL06733 30 0.9 mm 188 m 1.70 Ω/m 125 g £26.26 ea EL06734 32 0.71 mm 304 m 2.70 Ω/m 125 g EL06736 34 0.56 mm 488 m 4.40 Ω/m 125 g £26.61 ea Copper Wire, Tinned EL06737 36 0.45 mm 756 m 6.80 Ω/m 125 g ✓ £26.74 ea EL06738 42 0.37 mm 1088 m 9.80 Ω/m 125 g £27.00 ea Supplied on a reel. EL06739 42 £27.80 ea EL06740 0.31 mm 1542 m 13.90 Ω/m 125 g EL06741 0.28 mm 1952 m 17.50 Ω/m 125 g £27.44 ea EL150100 £27.66 ea EL161000 0.23 mm 2758 m 24.70 Ω/m 125 g £27.80 ea 0.2 mm 3826 m 34.40 Ω/m 125 g swg Diameter Weight 0.1 mm 15032 m 137.50 Ω/m 2.72 g £1.99 ea EL06710 26 0.45 mm 50 g £2.53 ea £16.39 ea 0.1 mm 15032 m 137.50 Ω/m 50 g STANDARD WIRE GAUGES (SWG) AND DIAMETERS* OF BARE WIRES SWG Diameter SWG Diameter SWG Diameter 4 5.89mm 20 0.91mm 36 0.19mm 21 0.81mm 37 0.17mm 5 5.39mm 22 0.71mm 38 0.15mm 23 0.61mm 39 0.13mm 6 4.88mm 24 0.56mm 40 0.12mm 25 0.51mm 41 0.11mm 7 4.47mm 26 0.46mm 42 0.10mm 27 0.42mm 43 0.09mm 8 4.06mm 28 0.38mm 44 0.08mm 29 0.35mm 45 0.07mm 9 3.66mm 30 0.31mm 46 0.06mm 31 0.29mm 47 0.05mm 10 3.52mm 32 0.27mm 48 0.04mm 33 0.25mm 49 0.03mm 11 2.95mm 34 0.23mm 50 0.025mm 35 0.21mm 12 2.64mm 13 2.34mm 14 2.03mm 15 1.83mm 16 1.63mm 17 1.42mm 18 1.22mm 19 1.02mm * Diameters are approximate only. Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 313
ELECTRICITY & ELECTRONICS Wire Flexible Wire Single Core Wire Wire, Extra Flexible Wire, Single Core Extra flexible stranded copper wire. Single core equipment wire consisting of Supplied in a 25 m reel. 0.60€mm diameter solid Copper core with ••• outer PVC sheathing, giving an overall diameter PVC insulated of 1.20€mm. Supplied as a 100€m reel. Diameter: 2.8 mm 1.8€A rating. Max current: 6 A EL067460 Colour ✓ £6.95 ea EL110180 Colour Current ✓ £10.83 ea EL067461 £6.70 ea EL110185 ✓ £10.83 ea EL067462 Black £6.95 ea EL110190 Black 1.8 A EL067463 Blue £6.95 ea EL110195 Red 1.8 A £10.83 ea EL067464 Green £6.70 ea EL110200 Blue 1.8 A £10.83 ea EL067465 Red £6.95 ea EL110205 Brown 1.8 A £10.83 ea White EL110210 Green 1.8 A £10.83 ea Yellow Orange 1.8 A ✓ £10.83 ea Yellow 1.8 A Cable, Single Core, Mixed Pack 1/0.6mm copper conductor. Overall diameter 1.4mm. Flexible Wire, 1.2 mm EL91405 Colour Current Voltage Quantity £3.59 pk Mixed 1.8 A 1 k V rms 11, in 2 metre This high quality stranded PVC-insulated equipment wire is ideal for general lengths interconnection within apparatus. It is suitable for use with crocodile clips EL18500 & EL18502. Cable Ties Cable Ties • 7 strand/0.2 mm tinned copper conductor • Overall diameter 1.2 mm • Current rating 2 A • Rating 1 kV rms 1.4 A at 70°C NEW• PVC insulation • Supplied on reels of 100 m AB EL91400 Colour Length Quantity £0.53 pk EL91402 £1.71 pk Black 102 mm 100 £4.01 ea natural 200 mm 100 EL180400 Colour ✓ £11.19 ea Fuse Wire EL180402 ✓ £11.19 ea A Black Fuse Wire, Mixed Pack B Red This pack contains 3 lengths of fuse wire and is ideal Insulated Wire for demonstrating the relationship between thickness and resistance in fuse wires. The thinner wire can also Cable, PVC Insulated 3-Core Cable be used to demonstrate how a fuse works (requires a power supply capable of delivering a current over 10 m lengths. For mains use to BS 6500. 5 Amps). Contents: 1.7m of 5 amp fuse wire (for use in lighting circuits, max circuit loading 1kW); 0.7m of 15 amp fuse wire (for use in mains socket ring circuits, max circuit loading 3kW): 0.5m of 30 amp fuse wire (for use in cooker, shower and immersion heater circuits, max circuit loading 7kW). EL120570 EL06751 Current £6.75 ea Fuse Wire, 3A EL06752 ✓ £8.13 ea EL06753 3A Silver wire which fuses at 3 A. Ideal for use with the fuse wire 6A £11.43 ea holder. Supplied as a reel of 50 m. 10 A Cable, PVC Insulated 2-Core EL170573 £27.44 ea 10€m length, 2€A rating. To BS 6500 (bell wire). Fuse Wire Holder Handy holder for clamping fuse wire, to demonstrate the operation of a fuse in an electrical circuit. The holder includes 4 mm sockets, for easy connection to lab leads, and is designed for use with bare fuse wire, which should be pushed into the fuse holder’s clamps. EL06755 £1.79 ea EL170575 £25.63 ea 314 …inspiring tomorrow’s scientists through practical science.
315 ENVIRONMENTAL SCIENCE Field Studies 316 Surveying326 Horticulture320 Water Testing 326 Soil Testing 323 Weather & Environmental Measurement 328
ENVIRONMENTAL SCIENCE Field Studies Copper Based Humidity Papers A safer alternative to cobalt chloride test papers. TP15000 Quantity £4.39 pk 10 books Silica gel self-indicating Red to yellow (anhydrous to hydrated). An alternative indicator, safer than cobalt(II) chloride. SI5336 QlacimehC uantity £12.11 500 g Woodlice Packs of living woodlice, suitable for behavioural experiments e.g. for use with choice chambers. BL160700 Quantity £10.33 pk BL160702 £33.94 pk BL160704 10 £63.01 pk 50 100 Choice Chambers Timstar Choice Chamber At last, the once ubiquitous Choice Chamber is readily available again, at an affordable price! Robustly made from injection moulded Acrylic, this is a modification of the ‘classic’ design. With four compartments for holding desiccating and humidifying components (e.g. silica gel or anhydrous calcium chloride and water or cotton wool soaked in water) a piece of fine mesh is placed over the compartments and the lid placed on top to hold the mesh in place. This mesh layer ensures the organisms cannot come into contact with the desiccant etc. below. The clear lid of the chamber has slightly raised ridges which divide it into quarters, to facilitate the placement of tracing paper or card segments, creating different levels of opacity or for light to be blocked out completely. This allows a range of condition gradients within the chamber to be created. The edges of the lid can also be blacked out if required, to augment the dark conditions. The organisms being tested (e.g. woodlice or maggots) are then introduced via the single 18 mm diameter hole in the lid. The lid fits onto the base in such a way that the top segment guides align with the compartment walls below, which means the different light level sectors of the lid will match the compartments in the base precisely. Available in a range of base colours with clear lids, the choice chambers come without the mesh material, which is available separately. Dimensions (Diameter x D): 200 x 35 mm. EN120975 Colour Quantity ✓ £46.18 pk EN120900 £46.18 pk Clear 5 Mixed colours 5 ...the Timstar Choice OUR EXPERTS SAY... Chamber is a modification of the classic design. The lid fits onto the base in such a way that the top segment guides align with the compartment walls easily and precisely. Mesh Mesh material for use with the choice chambers. 1 square metre - sufficient cover 12-16 chambers. EN120905 £5.63 ea SPECIMENS INFO When ordering LIVE SPECIMENS A4 Card PRODUCT A4 deep black card, pack of 100 sheets. Weight 160gsm. please allow 7-10 days for delivery, as all ST120105 Colour £12.02 pk our specimens are freshly prepared. Black Calcium chloride anhydrous - granular LR CA1856 QlacimehC uantity £4.86 500 g 316 …inspiring tomorrow’s scientists through practical science.
Field Studies ENVIRONMENTAL SCIENCE Entomological Pins Mini Pond/Tank Nets Entomological Pins A pack of mini nets suitable for use in fish tanks, small ponds and for pond- Dimensions: 30mm long. dipping activities. Nets are robust, with close weave mesh netting. Dimensions: 330 mm handles and 150 x 120 mm nets. Type Quantity EN07000 Nickel Plated Brass No. 5 100 £4.60 pk Mammal Traps Quantity EN169000 5 Small Mammal Trap Plastic (Trip-Trap). £7.29 pk BEST Water Nets SELLER Junior pond net with micromesh netting on a strong U.P.V.C. handle. Dimensions: 200 x 150mm. Handle dimensions: 900mm. EN06976 £5.63 ea EN07064 ✓ £16.56 ea Water Nets Nets D-Shape frame micromesh net with anti-wear rubbing bar complete Insect Nets with a strong U.P.V.C. Handle.. Dimensions: 300 x 150mm. Handle A strong fine net for catching all types of flying insects. Dimensions dimensions: 900mm. (Diameter x L): 250 x 560 mm. Handle dimensions: 630 mm. EN06978 £5.63 ea EN06971 £15.93 ea Specimen Bottles Specimen Bottles, Plastic Dipping Nets Clear plastic containers with screw-on lids. Ideal for use Flymesh netting on a strong U.P.V.C. handle. Dimensions: 190 x 150mm. outdoors or in the classroom. In packs of 30. Handle dimensions: 300mm. EN06974 Quantity £24.94 pk BO03090 Capacity ✓ £9.68 pk 5 BO170300 £18.19 pk BO03091 30 mL £22.10 pk 60 mL 70 mL Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 317
ENVIRONMENTAL SCIENCE Field Studies Pond Trays Respiration Chambers Pond Trays Respiration Chamber White plastic trays useful for pond The simplest TahnedsechreesappierasttiownaychtoamobbseerrsvceaCnOb2e release! Ideal for individual dipping and viewing pond life. student use. part-filled with lime water or Available in 2 sizes. bicarbonate indicator solution, the organism or material to be tested placed in the top chamber and the carbon dioxide given off or expired can be observed by a change in the solution. Observation is easy due to the transparency of the box. The apparatus consists of an external chamber with an internal sample holder which is perforated to allow the exchange of gases. This holder prevents contact between the Type Dimensions sample and solution below. Dimensions EN52680 £3.11 ea (Diameter x H): 35 x 75mm. EN52682 Small 350 x 250 x 50 mm (L x W x H) £4.49 ea Large 400 x 310 x 90 mm (L x W x H) Pooters Perry’s Pooters Quantity EN110115 6 All plastic construction. Strong clear 70ml container with airtight lid and two clear flexible tubes. A safe filter prevents specimens reaching the sucking tube. £17.44 pk EN07036 Quantity £17.20 pk Tulgren Funnels 5 Tulgren Funnel Quadrats A soil sample is placed on the perforated plate and a 230V heating lamp Folding Quadrat is held above the soil driving the organisms down through the funnel into a collecting jar. Supplied with coarse and fine mesh and 3 core cable. (Retort For population counts and other stand rod and base not supplied). measurements in the field. Consists of 4 white plastic coated steel rods 0.5m long with markers at 0.25m which simply bolt together to form a quadrat frame. Folds flat when not in use. EN07056 £17.06 ea Quadrat 25 Squares Solid square metal frame with 25 squares in total. Dimensions: 500 x 500mm. BEST SELLER EN71655 ✓ £21.76 ea Quadrat 100 Squares EN81550 £96.31 ea SPARES & ACCESSORIES Superior quality plastic coated steel EL130510 Clear finish 40 W Bulb, BC fitting ✗ £3.31 ea 100 squares. Dimensions: 500 x 500mm. LINKED To help you with your ordering, see also... EN91594 £23.84 ea PRODUCTS Retort Stands, Rods and Bases (pages 401-405) 318 …inspiring tomorrow’s scientists through practical science.
Field Studies ENVIRONMENTAL SCIENCE Viewers Two Way Viewer Large Magnifying Set Ideal field study viewer. Specimens can The Large Magnifying Set is ideal for be viewed from above and from the side. inspecting specimens from nature trips. Dimensions: 190 x 130mm. The millimetre grid on the base of the pot means that the actual size of the specimen is £14.29 set EN07072 £9.56 ea easily recorded. The stands (supplied) also £11.55 pk make an excellent free-standing desk-top Bug Tongs magnifier. (Lens magnification: x 2.3). Complete with product guide. Content is not Invicta’s Bug Tongs are ideal for field trips for pupils included. Dimensions: 100 x 110mm. to collect specimens. Children can capture insects, bugs and other small organisms from within their EN130865 natural habitat or environment for examination without touching or hurting the specimen. The scissor Nature Viewer action bug tongs are fun, easy and safe to use for both capture and release of flying, swimming or Ideal for examining small insects, crawling insects. Once captured the children can pond life etc. Comprises a 70 mm transfer the insect into a larger bug pot for further diameter removable lens with detailed examination prior to release. The Bug Tongs x3.5 magnification, mounted on a come complete with a product guide. Dimensions (L): 60 mm deep box with a removable 215€mm. metric grid base. With the base of one pot removed, Quantity two pots can be stacked to double EN130840 5 the magnification. Please note the pots are not Marine Viewer intended to hold water. To observe pond life, a Petri dish or similar is For viewing pond life in their natural habitat. recommended. To use just lower into a pond or stream and the viewer looks down the opening at the top. A mirror set at 45° reveals the pond life directly in front. EN07070 £4.45 ea Giant Bug Viewer EN07033 £26.68 ea A large, ventilated viewing pot with 5x magnification lid which allows students Timelapse Cameras to observe insects and other small creatures etc. in detail. The pot opens at both ends, for easy access, and has a clear base with micro ruler. Includes a Timelapse Camera plastic mantis. Height 135mm. This waterproof camera has both time lapse and motion activated EN160800 £8.11 ea functionalities. With passive infrared, still photo, a self-timer, IR flash and continuous shooting, it can capture video and still images at specified set times, Bug Pots or when it senses motion. The transparent pots have magnifying lids and useful grids on the bases. With a wide angle and sensing distance of 20 metres, it is perfect for capturing Magnification approx. x2.5. high quality photographs during both day and night, which can then be easily downloaded to a PC and shared. The time lapse function allows comparison of different times or seasons or to record the growth and development of a plant, opening of flowers etc. Requires 4 or 8 x AA batteries and an SD/HCSD memory card (NOT included). • Waterproof • 20 metre sensing distance • 12 mega pixel resolution • Capture mode - single or time lapse • Stand by time - 6 months • Motion activated function • USB lead included EN81520 Quantity £9.75 pk EN130905 £199.98 ea 10 SPARES & ACCESSORIES £1.95 pk BA01983 2 x AA Batteries Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 319
ENVIRONMENTAL SCIENCE Horticulture Garden Tools Rake Border Fork Pressed steel head containing twelve teeth with 1.3m alloy handle. Dimensions Steel cored, plastic coated shaft with D-shaped handle. Dimensions (L): (12 teeth): 280 x 85mm. Alloy handle dimensions: 1.3 metre. 760mm; (4 prong head) 230 x 140mm. HO09000 £18.02 ea HO09030 £15.36 ea Digging Fork Trowel Steel cored, plastic coated shaft with D-shaped handle. Dimensions (L): Pressed steel blade on 130mm handle. 710mm; (4 prong head) 280 x 180mm. HO09005 £24.29 ea HO09065 £5.56 ea Border Spade Weed Fork Steel cored, plastic coated shaft with D-shaped handle. Dimensions (L): Pressed steel three prongs fork with 130mm handle. 700mm; (blade) 230 x 140mm. HO09055 £18.16 ea HO09010 £5.14 ea Digging Spade Secateurs Steel cored, plastic coated shaft with D-shaped handle. Dimensions (L): Standard bypass with safety clip. Dimensions: 175mm. 700mm; (blade) 280 x 180mm. HO09060 £25.01 ea HO09050 £11.58 ea £7.80 ea Draw Hoe Garden Accessories Pressed steel head with alloy handle. Head Dimensions: 150mm. Watering Cans Handle dimensions: 1.3 metres. Polythene, complete with fine and wide bore rose. HO09020 £12.66 ea HO09080 Capacity 9 litres Dutch Hoe Garden Hose Pressed steel triangular head with alloy handle. Head Dimensions: 130mm. PVC reinforced hose, kink resistant. Handle Dimensions: 1.3 metres. Dimensions (L x Diameter): 30 metres x 12.5mm. HO09025 £14.52 ea HO09095 £30.50 ea 320 …inspiring tomorrow’s scientists through practical science.
Horticulture ENVIRONMENTAL SCIENCE Garden Accessories continued Seed Trays, Large Gardening Gloves Plastic with drainage holes. Dimensions (L x W x H): 350 x 210 x 50mm. Cotton and chrome leather palm. One size to fit all. HO09140 Type £2.44 pr HO09145 £2.24 ea Gents Seed Trays, Small Propagator Lid Approximately half size seed trays, heavy duty Clear, shatter resistant plastic propagator lid, designed to fit large seed trays with drainage holes. HO09145. Dimensions (L x W x H): 225 x 165 x 55mm. HO110920 £8.09 ea HO102430 £1.63 ea Electric Seed Gravel Trays, Large Propagator Durable polypropylene garden trays. Black with no drainage holes. Holds 3 full Clear plastic, with heated base tray. size seed trays. Dimensions (L x W x H): 790 x 400 x 40mm. Comes complete with adjustable ventilation and 2 x 220mm seed trays. Dimensions (L x W x H): 380 x 240 x 190mm. HO09160 £43.69 ea HO102414 £14.66 ea £1.25 ea Plant Growing Light Kit Gravel Trays, Small This plant light kit allows propagation even when daylight is insufficient or Plastic without holes. Dimensions (L x W x H): unavailable - the bulb provides simulated daylight so you can grow indoors or 350 x 210 x 50mm. even bring on seasonal plants earlier. When installed, the unit is mounted on easy roll hangers so you can adjust the height to suit the plants requirements. HO09150 You’ll also have greater access to plants, making watering and feeding easier! Plant Pots Kit includes: Polypropylene. • Batwing reflector (with removable protective film) • 200 watt, 6400k compact fluorescent lamp • Pair of easy roll hangers • 3 metre mains leads and plug Type £103.03 kit HO09165 Diameter Quantity £1.25 pk HO130505 Plant light kit £49.21 ea HO09170 ✓ £4.94 pk HO09185 75 mm 10 SPARES & ACCESSORIES HO09190 100 mm 10 £8.69 pk HO130510 Replacement lamp 175 mm 5 £11.19 pk 200 mm 5 Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 321
ENVIRONMENTAL SCIENCE Horticulture Garden Accessories continued Twist Ties Hand Sprayer Green plastic covered wire for tying plants etc. Hozelock spraymist. Capacity Quantity £1.25 pk 500 mL HO102434 100 HO92400 £3.60 ea Metal Sieve Plant Labels 1/4” Riddle / Sieve, essential for removing larger lumps & stones from potting compost or soil Stick in, write-on, white plant labels. ••• Diameter: 360mm / 14.25” Depth: 75mm / 3” Mesh Size: 1/4” EN160940 £22.81 ea Quantity £1.61 pk Spirit Thermometers HO102426 100 Greenhouse Max/Min Thermometer Green Plant Sticks Push-button Max/Min Thermometer - a classic Green Chinese split bamboo sticks for plant and flower support. Blunt both design that has long been popular with ends. gardeners. For use in greenhouse or outdoors, the thermometer is clear to read and simple to reset using the push button. Measures in °C and °F. HO102438 £13.85 ea HO102418 Length Quantity ✓ £3.69 pk Digital Thermometers HO102420 £4.38 pk HO102422 12” 50 £4.90 pk Digital Max / Min Thermometers 18” 50 24” 50 These large electronic max/min thermometers for outdoor or indoor use come in a choice of white or green casing. The triple display shows minimum, Garden Twine maximum and current temperatures simultaneously. Specifications: Nurserymans size spool (100gm) of 2 ply green jute fillis garden twine. • Sampling rate - every 10 seconds • CE & ROHS/WEEE approved • Requires 1 x AA battery • Water resistant to IP65 • Dimensions (L x W x H): 160 x 78 x 31mm • Weight - 158g (including batteries). • Temperature Range -10 to +40°C • Display Resolution 0.1°C • Accuracy +/-1°C • LCD Dimensions: 79 x 60mm • Triple display HO140100 Colour £11.99 ea HO140105 £11.99 ea Green White £1.95 pk HO102410 £1.46 ea SPARES & ACCESSORIES BA01983 2 x AA Batteries 322 …inspiring tomorrow’s scientists through practical science.
Horticulture ● Soil Testing ENVIRONMENTAL SCIENCE Plant Growth & Care Bug Free Spray Gun Composts Insecticide Fast acting multi-purpose insecticide. Quickly kills greenfly, blackfly, whitefly, caterpillars, cabbage aphids, red spider mite and ants. Suitable for use on flowers, fruits and vegetables. Active Ingredient: Bifenthrin. HO09220 Type Quantity £10.55 ea HO92420 Quantity £6.50 ea HO09225 £12.44 ea 1 litre £4.14 ea HO09237 John Innes Seed Compost 20 litres £15.10 ea John Innes Potting Compost 25 litres Levington Multipurpose 70 litres Peat-Free Multipurpose Compost Hormone Rooting Powder A peat-free multi-purpose compost with organic Root hormone powder, suitable for soft, nutrients for general use in pots and patio containers. medium and hardwood cuttings of non-edible Recommended Uses: potting into tubs, planters, ornamental plants. containers and hanging baskets. Not suitable for limehating (ericaceous) plants. £11.54 ea Ingredients: Composted bark, timber residues, green £39.90 ea waste, limestone and nutrients, including hoof and horn, rock phosphate, vinasse and bonemeal. Quantity EN160980 50 litre Vermiculite Quantity HO120100 50 g Bag of coarse grade vermiculite. Fungicide HO09249 Quantity 100 litres Fungus Fighter disease control (fungicide), in a Plant Food •ready-to-use spray bottle. Controls black spot, powdery mildew and rust. • For use on all ornamental garden plants • Active ingredients: Myclobutanil HO92405 Type Quantity £5.85 ea Quantity £9.30 ea HO92408 £5.06 ea HO130500 1 litre Phostrogen Soluble 500 g Baby Bio Original 175 mL Soil Testing Soil Gouge Auger, Wide Inspection Channel Soil Augers The broad opening of this soil sampler makes it easier to inspect the soil Soil Auger sample while it is still in the auger. Total length of the sampler is 63€cm long and it yields a soil sample of approximately 49 cm in length with a diameter of Mild steel screw type, with an eye to 22€mm. Made from electroplated steel. accommodate a wooden ‘T’ bar which is supplied. Dimensions: 600mm. SO150010 £72.44 ea Soil Corers Soil Corer Specially made from tempered-steel for taking soil cores features a barrel 38mm diameter and gives a sample 304mm in length. With an open faced cylinder the core can be studied throughout the entire sample length and also features two rubber covered handles that adds extra stability and protection for the user. SO13682 £124.94 ea SO96216 £137.44 ea Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 323
ENVIRONMENTAL SCIENCE Soil Testing Soil Meters 3 in 1 Soil Meter Soil pH Meter Provides quick indications of soil moisture pH and light conditions. For any number of easy instant pH checks on soil or compost in the laboratory or garden. Reads BEST direct from soil or compost without sampling. Includes full instructions on adjusting pH to suit SELLER individual plants. pH readings for pH 3.5 to pH 9.0 instantly shown on the meter’s display. SO96204 ✓ £12.48 ea SO13665 £20.61 ea Soil pH Meter Mini pH Tester Quick and easy to use gives an instant check of soil pH. No batteries required. Supplied complete with a Instantly shows acid/alkaline content of soil. plant preference list. SO96212 £13.95 ea SO13667 £14.26 ea Soil Thermometers Soil Moisture & Light Meter Soil Thermometer This meter ensures the right individual light and Spirit filled thermometer in aluminium tube -10 to 110°C and 20 to 240°F. moisture conditions. Tests the moisture deep Dimensions: 225mm. down where the roots are. BEST SELLER SO13680 ✓ £11.91 ea SO13670 £25.91 ea Splashproof Corkscrew Thermometer Mini Moisture Tester This low cost rapid response high accuracy thermometer has a corkscrew tip stainless steel probe and is ideal for frozen food semi-solid and liquid Instantly shows basic watering needs. measurements. It could also be used as a soil thermometer, as the corkscrew tip allows easier entry into harder or compacted soils. SO13672 • -50° to 150°C x 0.1° 324 • Data Hold function retains the • displayed value Auto Power Off after 1 hour of • no activity Polycarbonate case with • membrane keypad 12mm LCD with function • indicators 100mm x 8mm diameter corkscrew tip • Stainless Steel Probe • Thermistor sensor is located in • the bottom 10mm of the probe Supplied with probe protector cap and battery £14.43 ea EN120530 £36.96 ea …inspiring tomorrow’s scientists through practical science.
Soil Testing ENVIRONMENTAL SCIENCE Soil Sieves Soil Test Kits Test Sieves, Plastic Hanna Soil Test Kit Set of five plastic sieves. Mesh openings: 7.5, 9, 11, 13, and 15 mm. This Hanna Soil test kit is ideal for testing and monitoring the quality of the NEW soil. Tests include pH level, nitrogen, phosphorous and potassium. Easy to use - a soil sample is mixed with water and combined with one of the chemical reagents supplied with the kit. The resulting solution is compared to the colour chart supplied to determine the concentration of the element being tested, which is indicated as low, medium or high traces (except pH, which is between pH4 and pH9, in 1pH increments). The kit comes with all the necessary components for 10 tests of each of the 4 parameters or 25 tests x 4 parameters. EN180300 ✓ £46.19 set Soil Sieves, Plastic Body Set of six stainless steel nesting sieves in plastic frame. Complete with plastic lid and receiver. Mesh numbers 5, 10, 35, 60, 120, and 230. NEW Quantity EN120520 4 x 10 tests ✓ £35.55 kit EN120525 4 x 25 tests £92.90 kit EN180000 ✓ £58.69 set Advanced Soil Investigation Kit Soil Sieves, Brass Body NEW This is a more advanced version of our Soil Investigation Kit (EN62645). Set of six stainless steel nesting sieves in brass frame. Each kit contains approximately Mesh numbers 10, 18, 35, 60, 120, and 230. 0.5 kg bagged samples of each soil type and comes complete with teaching notes. Kit includes the following soil types: Clay Soil; Loam Soil; Chalk-Loam Soil; Chalk Soil; Gravel Soil; Peat Soil; Sandy Soil. EN111005 £17.39 kit Soil Investigation Kit For the describing and grouping of soils. Comprising samples (approx. 500 to 750g each) of clay sandy calcareous and peaty soils. Supplied with full teacher’s notes. EN180050 ✓ £124.94 set Soil Sieves, Brass Set EN62645 £16.13 kit Brass nesting sieves in aluminium frames. Mesh No’s 10, 20, 40, 60, 80, 100, 120, and 250. Complete with aluminium lid and receiver. Soil Types Kit A boxed kit of 12 reference soils. For teaching: geography, forensics, science and agriculture. The kit is used for describing and grouping soils on the basis of characteristics, including appearance, texture and permeability. Includes comprehensive notes on soil characteristics. Contents: 200ml containers of: sandy (2 types), clay (2 types), chalk (A-horizon), chalk (C-horizon), rendzina, silt, organic, podzol, loam. Sieved and air-dried. SO13676 Quantity £143.69 set SO96200 £55.36 kit 9 Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 325
ENVIRONMENTAL SCIENCE Surveying ● Water Testing Clinometers Ranging Poles Clinometer Ranging Poles A compact Clinometer with no For survey field work. PVC covered wooden poles with solid steel external moving parts and a points. Red and white graduated every 500mm. Dimensions combined sighting angle-reading (L x Diameter): 2 metres x 28mm. eyepiece. A viewing window on the side of the Clinometer allows a BEST second person to check a reading. All angles in degrees followed by a SELLER plus or minus to indicate an upward or downward slope. Complete with EN07058 ✓ £15.36 ea product guide. Dimensions: 140mm diameter. £16.49 ea Ranging Poles 4-Section EN81525 Heavy duty ranging poles which pull apart for easy transport and storage. These robust design Clinometer poles assembled in 4 x 0.5 metres black/white sections. Simply plug together to use or pull apart A lightweight angle and height for ease of transport or storage - fits into rucksack measuring instrument. Point it at car or mini-bus and are ideal for field trips. the top of a building or tree, pull Dimensions (assembled): 2 metres. the trigger, and then read the angle on the protractor. Height is easy to BEST calculate using the guide supplied SELLER EN111010 £27.44 ea Binoculars Helios Binoculars ‘Fieldmaster’ Porro-prism binoculars offering an exceptional combination of performance, features and value. Featuring Bak-4 prisms, multi-coated optics, long-eye relief, fold back rubber eye-cups and tripod adapter busk. Supplied with neck-strap and case. ME10344 ✓ £12.48 ea BI02537 £79.50 ea Water Testing Advanced Stream Flow Meter Kit Stream Flow Meters The Advanced flowmeter has all of the same features as the above but is more Stream Flow Meter Kit versatile with an LCD counter display which can present velocity in metres per second or miles per hour thus making conversion charts unnecessary. This easy-to-use flowmeter is fitted with a re-settable LCD counter and powered by long-life batteries (supplied). The flowmeter also comes with a protective carrying pouch a sturdy impeller stick and a compact weather-proof carrying case for the whole kit. Three (free) stream bed elevation rods are also included which allow velocity measurements to be made at fixed heights above the bed of the stream. EN98120 £174.94 kit EN98125 £249.94 kit 326 …inspiring tomorrow’s scientists through practical science.
Water Testing ENVIRONMENTAL SCIENCE Water Meters Water Test Strips Dissolved Oxygen Meter Kit Iron Test Strips Simultaneously displays dissolved oxygen and temperature. Units of Measures Fe2+ and Fe+3. Reads 0, 2, 10 25, 50, 100 ppm. Supplied in a vial measure are % saturation mg/L or ppm for dissolved oxygen and °C or °F of 50 strips. for temperature. Advanced features include data hold 25 points memory auto power off automatic temperature compensation salinity and altitude EN81555 £16.27 ea compensation. Careful use and maintenance will provide years of reliable service. Easy to replace screw on membrane cap with optional extension Nitrate Test Strips cables. Detects Nitrate at 0, 10, 25, 50, 100, 250, 500 ppm. Supplied in a vial of • Oxygen level displayed as % Saturation or 50 strips. • Concentration (mg/L [ppm]). Adjustable Altitude Compensation (0 to 20,000 ft in 1,000 ft increments) • Adjustable Salinity Compensation from 0 to 50 ppt • Analogue bar graph indicates trends • Memory stores up to 25 data sets with DO and Temperature readings • Self calibration on power up • Data Hold, Auto power off, Low battery indicator • Waterproof to IP57 • Optional 1 m or 5 m extension cable • Complete with DO electrode, protective sensor cap, spare membrane cap, electrolyte and four 1.5 V batteries EN81556 £14.38 ea WA97305 £374.94 kit Dissolved Oxygen Kit Water Hardness Test Strips Convenient kit adds versatility on measuring Dissolved Oxygen in laboratories Detects 0, 50, 125, 250, 500 ppm and equivalent g/G. Supplied in a pack of or out in the field with a 5 m (16 ft) extension cable and probe weight guard 50 strips. •for taking easy measurements in tanks or streams. Oxygen level displayed as % Saturation (0 to 200.0 %) or Concentration 0 to 20.00 ppm (mg/L) with 2 % FS accuracy • Memory stores up to 25 data readings • Automatic Temperature Compensation • Adjustable Altitude and Salinity Compensation • Includes Extension Cable for remote measurements • CE approved, 1yr warranty (meter) / 6 months conditional warranty • (electrode) Complete with oxygen meter, (WA97305) membrane kit, 5 m (16 ft) extension cable, weighted probe guard and carrying case EN81557 £14.14 pk Chemical Test Kits Chemical Test Kits, ‘Hanna’ Each kit comes ready for use complete with solutions measuring syringe bottles etc. in plastic case. WA97310 £437.44 kit £0.58 ea SPARES & ACCESSORIES Type Range BA01997 WA17720 Phosphate Test Kit 0-5 mg/L PO4 £26.31 kit CR2032 Coin Cell Battery, 3 V Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 327
ENVIRONMENTAL SCIENCE Weather & Environmental Measurement Anemometers Anemometer Skywatch Xplorer Series Anemometer, ‘Invicta’ Compact, robust instruments fitted with an impeller and sensors which allow them to carry A unique design feature gives a direct reading of wind speed without the out measurements in the open air. Supplied with need to count revolutions. The low and high calibrations register m/s and the lithium cell and full instructions. Dimensions Beaufort scale. Can be hand held or fixed permanently. (L x W x H): 41 x 93 x 17mm. Skywatch Xplorer 1. Measures wind speed in km/h, knots or m/s. Skywatch Xplorer 2. Measures wind speed as above and temperature (-40 to 80°C) It also calculates wind chill factor. EN071970 £20.45 ea EN52660 Type ✓ £53.13 ea EN52662 £63.13 ea Skywatch Xplorer 1 Skywatch Xplorer 2 Pocket Anemometer Environment Meters This pocket sized anemometer has a lightweight low-friction ball vane providing Compact 4 In 1 Environment Meter high accuracy at high and low air velocity. The robust case incorporates a large easy to read display and wrist strap, making it ideal for practically all This compact 4-in-1 multi-function environment meter measures sound levels, conditions and uses. light levels, humidity and temperature. It is extremely easy to use with a single rotary switch controlling all functions. • 0.4 to 30m/s x 0.1m/s • Selectable m/s, ft/min, mph, km/hr or knots Impact-resistant ABS case with rubber boot and flip-out stand; 31/2 digit • Shock-resistant low-friction ball vane 18mm LCD; Electret condenser microphone for sound level measuring with • Easy to use push button operation selectable ‘A’ and ‘C’ frequency weighting at fast time weighting; Cosine • Data hold freezes current measured value corrected silicon diode sensor for Lux level with 4 selectable ranges 20, 200, • Min/Max Memory since power on 2000 and 20,000 Lux; Semiconductor sensor for humidity measurements in • 18mm LCD with function indicators %RH and ambient temperature in °C/°F; K-type input for °C/°F temperature • Supplied with instructions for use measurements; Over range indication; Low battery indication; Auto power off • Powered by 9V PP3 battery (not included) after 10 minutes; Supplied with rubber boot, K-Type • Dimensions (L x W x H): 156 x 60 x 33mm probe and battery (other probes available). • Weight: 160g. • Range: Sound: 35-100dB • Lux: 20-20,000 • Humidity: 25-95%RH • Temperature: -20 - +20°C, -20 - +1300K. • Resolution: 0.1dB, 0.01 / 0.1 / 1.0 Lux, 0.1%RH, 0.1°C, 1.0K. • Power: 9V PP3 battery (supplied) • Dimensions (L x W x H): 120 x 60 x 40mm • Weight: 280g EN111015 £95.81 ea EN120545 £75.40 ea SPARES & ACCESSORIES £3.83 ea BA01970 PP3 Battery THE BEAUFORT SCALE The Beaufort scale was devised by Admiral Francis Beaufort in 1806 for describing wind strength at sea, although it has since been adapted for 1 knot = 1.15078 miles per hour (mph) use on land also. 1 mile per hour (mph) = 0.868976242 knots The full modern version, from 1939, includes wind speeds (knots or mph 1 knot represents a speed of 1 nautical mile per hour (km/h), depending on location i.e. sea or land) and descriptive effects of 1 nautical mile = 1.15078 miles each wind force on both land based objects and the surface of the sea. Force Knots Wind speed km/h Description mph 00 <1 <1 Calm 1 1-3 1–3 1–5 Light air 2 4-6 4–7 6-11 Light breeze 3 7 - 10 8 – 12 12-19 Gentle breeze 4 11 - 16 13 – 18 20-29 Moderate breeze 5 17 - 21 19 – 24 30-39 Fresh breeze 6 22 - 27 25 – 31 40-50 Strong breeze 7 28 - 33 32 – 38 51-61 Near gale 8 34 - 40 39 – 46 62-74 Gale 9 41 - 47 47 – 54 75-87 Strong/Severe gale 10 48 - 55 55 – 63 88-101 Storm 11 56 - 63 64 – 72 102-117 Violent storm 12 64+ 73+ 118+ Hurricane 328 …inspiring tomorrow’s scientists through practical science.
Weather & Environmental Measurement ENVIRONMENTAL SCIENCE Environment Meters continued Jumbo Thermo-Hygrometer 4-in-1 Environment Meter A combined temperature and humidity meter ideal for environmental monitoring. The large LCD is easy to read at a distance. Simultaneous display A 4-in-1 multifunction environment meter which has been designed to of humidity in % RH and temperature in °C or °F; 63 x 80 mm large digit LCD; combine the functions of a sound level meter, light meter, humidity meter and Min/max memory since last reset; Impact-resistant ABS case with desk stands thermometer. and wall mounting; Supplied with battery. Dimensions (L x W x D): 138 x 95 x 20mm. • Large LCD (50 x 30 mm) • Date hold and max hold function • Temp range: -10°C to +50°C • Auto power off and low battery indication • Humidity Range: 25% to 98% RH • Complete with 9 V PP3 battery • Resolution: 0.1°C, 1% RH • Durable carry case and full • Power: 1 x 1.5V AA battery • instructions included • (supplied); Dimensions (L x W x D): 251 x Weight: 143g 63.8 x 40 mm • Weight 330g • Photodetector Dimensions (L x W x H): 115 x 60 x 27 mm HY102580 £22.17 ea SPARES & ACCESSORIES £1.95 pk BA01983 2 x AA Batteries Thermo-Hygrometer EN91578 £161.18 ea A combined temperature and humidity meter ideal for environmental SPARES & ACCESSORIES £3.83 ea monitoring. The clear LCDs are easy to read at a distance. BA01970 PP3 Battery Simultaneous display of humidity in %RH and temperature in °C or °F; Separate min/max reset buttons for independent reset of temperature and humidity; Two 15mm LCDs with large digits and function indicators; Impact-resistant ABS case with a flip out desk stand or wall mounting; Supplied with battery. Dimensions (L x W x D): 135 x 75 x 18mm 5 in 1 Environmental Multimeter BEST • Temp Range: -10°C to +50°C This multifunction meter measures a number of environmental conditions, • Humidity Range: 25% to 98% RH SELLER as well as a wide range of electronics measurement, making it an excellent • Resolution: 0.1°C, 1% RH general purpose meter for school science departments. Featuring auto-range, • Power: 1 x 1.5V AA battery (supplied) data hold, relative measurement, backlight, auto power-off, and IEC1010 CatII • Weight: 96g 1000 V Conformity. HY102588 ✓ £19.54 ea • DC voltage: 0.4 V/4 V/40 V/400 V/600 V ±0.7 % SPARES & ACCESSORIES £1.95 pk • AC voltage: 4 V/40 V/400 V/600 V ±0.8 % BA01983 2 x AA Batteries • DC current: 40 mA/400 mA ±1.2 %, 10 A ±2.0 % • AC current: 40 mA/400 mA ±1.5 %, 10 A ±3.0 % Pocket Thermo-Hygrometer • Resistance: 400 R/4 k/40 k/400 k/4 M ±1.2 %, • 40 M ±2.0 % A pocket temperature and humidity meter with an LCD display which simultaneously displays temperature and Capacitance: 4 nF/40 nF/400 nF/4 μF/40 μF/ humidity. The sensors are located in a protective grille. Dimensions (L x W x H): 55 x 32 x 10 mm. • 200 μF ±3.0 % Frequency: 10 R/100 R/1 k/10 k/100 kHz • -20° to 60°C x 0.1°C ±2.0 % • 0% to 100%RH x 0.1%RH • Simultaneous display of humidity and temperature • Duty cycle: 0.1 % ~ 99.9 % ±3.0 % • 25mm LCD with backlight • Temperature: -20 °C ~ 400 °C ±3.0 % • Min/Max Memory since power on • Impact-resistant ABS case with integrated sensors (0.1 °C), 400 °C ~ 1000 °C ±3.0 % (1 °C) housed in a protective grill • Humidity: 30 % ~ 95 % RH ±5.0 % RH • Light: 4000 lux/40000 lux ±5.0 % • 4mm standard camera bush for tripod mounting • Sound level: 35 ~ 100 dB ±4 dB • Auto power off after 30 minutes of no activity - can • Continuity test • Power: 9 V (6F22) x1 be user disabled • Size: 185x85x44 mm • Low battery indication BEST • Powered by 9V PP3 battery (supplied) • Weight: 135g SELLER EL160335 ✓ £47.44 ea HY120100 £61.10 ea SPARES & ACCESSORIES £3.83 ea SPARES & ACCESSORIES £3.83 ea BA01970 PP3 Battery BA01970 1 x PP3 Batteries Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 329
ENVIRONMENTAL SCIENCE Weather & Environmental Measurement Barometers Weather Stations Aneroid Barometer Wireless Indoor/Outdoor Thermometer & Hygrometer Wall mounting in plastic case. Dual scale 960 to 1070 x 1mb and 720 to 800mm. Dimensions: 80mm diameter. 433 MHz wireless radio frequency for transmission and reception. • Transmission range up to 30 metres (100 feet) • Indoor and outdoor temperature and time at a glance • °C/°F and 12/24 hour selectable • Max / Min temperature memory • Main unit has foldable stand for desktop use and is also wall-mountable • LCD size: 41 x 35.7 mm • Low battery indicator • Battery usage: Main unit - 2 x AAA • Remote unit - 2 x AA • Main Unit Dimensions (W x • D x L): 72 x 24 x 121 mm Remote Unit Dimensions (W x D x L): - 70 x 22 x 100 mm BA01456 £19.85 ea Rain Gauges EN91574 £31.60 ea SPARES & ACCESSORIES £2.05 pk Direct Rain Gauge BA01984 2 x AAA Batteries Made of green plastic, reads from 0 to 50mm (0 to 2”) of rainfall and has a Wireless Max Min Thermometer & Humidity moulded spike for inserting in the ground. Meter An outdoor thermometer and hygrometer with wireless connection to a display unit indoors. Data from up to three outdoor sensors can be displayed. A single sensor unit is supplied, additional sensors can be purchased separately. NEW EN071984 £6.41 ea Direct Rain Gauge EN180574 Type ✓ £37.44 ea EN180576 ✓ £16.19 ea An accurate rain gauge graduated in mm. Can be used free-standing or with Indoor Unit & Sensor the spike provided. Supplied with lid to prevent spillage if the gauge is carried Additional Sensor £2.05 pk SPARES & ACCESSORIES BA01984 2 x AAA Batteries BEST Weather Vanes SELLER Weather Vane, ‘Invicta’ A simple practical weather vane which can be hand held or permanently fixed. It can be completely dismantled which encourages children to incorporate any part into their designs. EN071986 ✓ £6.93 ea EN071992 £11.88 ea 330 …inspiring tomorrow’s scientists through practical science.
331 FORENSIC SCIENCE Blood Analysis 332 Fingerprints334 Crime Scene Investigation (CSI) 333 Forensic Science Teaching Resources 336
FORENSIC SCIENCE Blood Analysis Forensics Using Simulated Blood Chemiluminescence In Blood Though the use of blood type in a forensic investigation is not enough to prove Crime scene investigators examine the scene of a possible violent crime for guilt, it may aid in exonerating a potential suspect. In this activity, students act evidence, such as fingerprints, hair, fibre, etc. After collecting the evidence, they as lab technicians and assist investigators by examining evidence collected notice there is no visible blood. Someone sprays the area with a liquid then at a crime scene. Students first use a presumptive blood test to determine if a turns out the lights. A strange, faint glow appears in certain areas of the scene. substance on a stained piece of cloth may be blood, and then determine the Learn how Luminol is used in scenes like this everyday. The special Luminol blood type of a sample collected at the scene. Students then compare their formulation does not require a separate hydrogen peroxide catalyst. Simply results to those of samples provided from two suspects. re-hydrate and use with the simulated blood haemoglobin to show your class. This activity includes an instruction Kit contains enough materials for 10 groups. Teacher’s Manual and Student manual with suggested activities. Study Guide copymasters are included. There is enough material for several Kit includes: demonstrations. • 40 Blood typing trays Kit Contents: • 10 Cotton swabs • 1 Cloth • 1 bottle Luminol • 1 bottle 70% ethanol • Re-hydrating Solution • 1 bottle Blood detection reagent #1 • 1 bottle Luminol powder • 1 bottle Blood detection reagent #2 • 1 bottle simulated blood • 4 Simulated blood samples: Victim, haemoglobin Suspect #1, Suspect #2, Crime Scene Evidence • 1 bottle Simulated anti-A serum • 1 bottle Simulated anti-B serum • 1 bottle Simulated anti-Rh serum FO91754 £112.50 kit FO91786 £62.04 kit SPARES & ACCESSORIES £68.75 pk FO91756 Refill pack Blood Test Kit Forensic Chemistry of Drug Detection Test for the presence of blood on materials using phenolphthalein. The test An investigation into food poisoning with aspirin allows students to establish will not distinguish between animal and human blood. Further serology tests if any of ingredients could have been substituted with aspirin, A series of are needed. Includes instructions, blood standard and reagents to complete chemical tests, including tests on control aspirin can be carried out in the lab. 30 tests. This activity includes a Teacher’s manual, Student’s guide and Analysis copy- masters. There is enough material for 15 groups. Kit Contents: Kit Contents: • 2x 25 mL Phenolphthalein • 2€% Solution UN1814 • 1 bottle control acetylsalicylic acid • 2x 25 mL Ethyl Alcohol UN1170 • 3 bottles chilli • 1x 50 mL Hydrogen Peroxide 3€% Solution • 1 bottle ferric nitrate 0.1M Solution • 5 Blood Standard Strips • 1 bottle Lugol’s iodine • 50 Cotton Swabs • 15 microreaction plates. FO91774 £49.49 kit FO91790 £83.49 kit Forensic Chemistry of Blood Types Blood Typing Kit Blood typing is a method of classifying blood based on the presence or ABO typing of blood left at the scene of a crime can help to narrow down a list absence of specific proteins (erythrocytes), on the surface of red blood cells. of suspects. In this experiment your students will use agglutination to identify the Blood type, an inherited characteristic, is valuable to know in that it affects blood group of unknown blood samples as a step to identify a criminal. medical procedures, such as surgery and transfusions, paternity testing, as well as serving as evidence in criminal investigations. Determining blood type Kit Includes: instructions, control ABO simulated blood samples, unknown can help provide supporting evidence simulated blood samples, transfer pipettes, microtitre plate. All You Need: or eliminate a possible suspect’s automatic micropipette (5-50 µL) with tips (optional). involvement in a crime. This activity includes a teachers manual and For 10 Lab Groups. Complete in 45 minutes. student guide and analysis copy- masters. There is enough material for 15 groups. Note: This activity uses Innovating Science Simulated Blood and is safe for classroom use. Kit Contents: • Blood typing trays • 4 Simulated blood samples: Victim, Suspect #1, Suspect #2, • Crime scene 1 set ABO/Rh blood typing anti- • sera 1 pack mixing sticks FO91782 £101.69 kit FO91850 Model For £43.00 kit 140 10 lab groups 332 …inspiring tomorrow’s scientists through practical science.
Crime Scene Investigation (CSI) FORENSIC SCIENCE Forensics Coverall Protective Police Do Not Cross Tape Suit High quality, non-adhesive plastic tape Disposable protective suits suitable for forensics printed with the words ‘POLICE DO NOT work. Available in medium or large sizes only. CROSS’ This tape is ideal for crime scene Sold individually. protection and other areas where there could be potential hazards. FO101698 Size £3.36 ea Simply unroll the plastic tape and it can £25.59 ea FO101700 £3.36 ea then be tacked, stapled, wrapped or tied £7.86 pk Medium around suitable objects to create an instant Large and highly visible barrier. Dimensions £10.64 set (W x L): 75mm x 250 metres. £10.64 set Disposable Over-Shoes FO130425 Disposable, blue PVC over-shoes, to protect feet and help prevent cross contamination. Sold as a pack of pairs. Evidence Collection Swabs Quantity £3.11 pk These plain 6 inch (15cm) sterile dry swabs FO120120 10 £2.29 pr on plastic shafts, for specimen/evidence collection, come labelled for inclusion of Disposable Over-Boots details such as date, site and time references. Each swab comes in its own polypropylene These disposable over-boots offer tube for transport back to the laboratory. protection for a safe working environment Sold as a pack of 10 DNA-free swabs, each and help prevent any risks associated in its own tube. with cross contamination. Manufactured from a medium weight fabric, which is a Quantity combination of a polypropylene non woven FO160600 10 fibre base with a polyethylene micro porous film coating, they give the wearer a superb Fibres Set barrier to hazardous liquid and fine dusts. Complete with a non slip sole. Sold per pair. Fibres are an important way of determining what an attacker or killer was wearing at the FO120500 time of an incident. Many forensic scientists use fibres as a means of determining Disposable Face Masks the nature of the item worn and in some instances can be as precise as to identify These Queen Charlotte type 2-ply disposable the make of the garment and thus the paper face masks offer protection for mouth manufacturer. and nose. Made from non-woven filtration Contents include: cotton, wool, polyester, paper they have soft elasticated loops to nylon and linen fibre samples, along with fit over the ears. Lightweight, hygienic and useful teaching notes. disposable, these are also ideal for use in forensics. FO101708 Quantity £4.63 pk Hair Sample Set FO110150 100 When viewed under the microscope, hair Crime Scene Tape of animal origin exhibits specific patterns such as a uni or multiserial ladder High quality, non-adhesive plastic tape printed with the words ‘CRIME SCENE (rabbits) or a lattice (deer). The shape DO NOT ENTER’ This tape is ideal for crime scene protection or other areas of the medulla as well as the pattern where forensic work needs to be carried out or is still ongoing. Simply unroll it exhibits can be used to determine the plastic tape and it can then be tacked, stapled, wrapped or tied around species. Samples are bagged and suitable objects to create an instant and highly visible barrier. Dimensions sterilised and include teaching notes. (W x L): 75mm x 100 metres. Contents include: deer, rabbit, squirrel and dog hair samples. FO101712 Tamper-Evident Evidence Bags Correctly packaged evidence is essential if reliable scientific results are to be obtained. Preserving the chain of custody is important because it maintains the integrity of the evidence. Whenever a person comes in contact with a piece of evidence, the contact must be documented to prove that the evidence was always accounted for and that no one tampered with it. These specially manufactured bags have many tamper-evident features, including a unique bag number and printed label. These bags also have the added benefit of being leakproof. FO101664 £25.86 ea FO130410 Dimensions Quantity £30.05 pk FO130415 £40.74 pk 190 x 260 mm 100 250 x 420 mm 100 Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 333
FORENSIC SCIENCE Crime Scene Investigation (CSI) ● Fingerprints Body (Cadaver) Bag Forensic Science Lab Investigation This body bag is ideal for the containment A multitude of comprehensive forensic investigations! As the lead investigators, and removal of bodies at crime scenes the class will be exposed to many aspects of a forensic laboratory. They will when completing a full forensics science be called upon to solve a murder mystery using a combination of forensic day. Constructed of 250 micron thick plastic science tools such as fibre and soil composition analysis, density analysis, it comprises a single central metal zip and insect identification, and chemical analysis. Students will collect the evidence a clear plastic window to aid identification. and analyse the Dimensions€(L€x€W):€215€x€100 cm results to solve a murder mystery. FO130430 £25.50 ea Forensic Chemistry of Chromatography Kit Use Thin-Layer Chromatography to separate the ink on a ransom note and FO91805 £238.75 kit ink found in markers tied to possible suspects. It may be possible to provide evidence as to whether or not the ransom note could have been written with a UV Pen particular marker. This activity includes a Teacher’s Manual and Student Guide and Analysis copy-masters. There is enough material for 15 groups. An ultra violet ‘security’ type pen where the ink is invisible under normal light, but shows up under a UV light. •Kit Content: 3 different brands of felt tip markers • Chromatography solvent • 15 silica gel chromatography • sheets Capillary tubes. •Materials needed but not supplied: 15 chromatography chambers (500 mL beakers) •• 15 test tubes Aluminium foil FO91760 £220.00 kit FO91820 £1.71 ea Fingerprints Fingerprint Ink Fingerprint Inking Pad, Large A very effective ink for fingerprinting that These large economy rectangular shaped pads leave a crisp, clear imprint and can be easily washed off using just soap and dry almost instantly. Only a slight residue is left on the fingers which can be water. This is an added bonus especially if removed by rubbing them together or wiping them with a towel or cloth. Each you have ever been tasked with the job of pad will give approximately 5000 individual prints. Dimensions (L x W): 125 x cleaning up the inking slabs and rollers! Use 80mm. in conjunction with inking slabs and inking rollers. FO101668 £21.25 ea FO101674 £33.10 ea Fingerprint Inking Pad, Small Fingerprint Lifting Tape These small economy pads leave a crisp, clear Pre-cut, uniform quality lifting tape for the ultimate preservation of latent imprint and dry almost instantly. Only a slight fingerprints, ready cut for convenience. It will conform and stretch and allow residue is left on the fingers which can be fingerprints to be lifted from doorknobs, wooden surfaces, light bulbs etc. removed by rubbing them together or wiping Supplied with a protective them with a towel or cloth. These small pads will backing sheet. Dimensions give you approximately 1000 individual inked (L x W): 120 x 65mm. impressions. Dimensions (Dia.): 50mm. FO101672 £9.38 ea Quantity £11.75 pk FO101678 100 334 …inspiring tomorrow’s scientists through practical science.
Fingerprints FORENSIC SCIENCE Fingerprint Powder Finger printing Kit Tub of Aluminium fingerprinting powder A great technical kit for as used extensively by British Police Forces understanding how fingerprints are since the 1970s. Aluminium is a low cost taken, recognised and analysed. dusting powder that is used for general Kit includes instructions, inkpad, dusting situations i.e. on glass, metallic powder, transparent stickers and surfaces, highly varnished wooden surfaces, record sheets. enamelled articles etc. The wearing of an appropriate dust respirator is recommended and especially during lengthy examinations or in confined and poorly ventilated areas. Please Note: Over-loading the brush (normally soft hair) should be avoided. FO101682 Quantity £4.64 ea FO160500 £8.44 ea FO101684 £11.75 ea £12.25 ea 30 g Fluorescent Powder £12.25 ea 100 g Fluorescent fingerprint powder is used in Fingerprinting Brush, Pony Hair conjunction with an alternative light source (i.e. lasers and low powered ultraviolet A high quality, dome headed, hand made brush, manufactured by blending lamps). It allows the visualisation of latent up-to-date technology with traditionally crafted skills. These brushes permit prints which otherwise may go undetected even the faintest print to be developed with minimal when using conventional processes. Suitable distortion. Made with soft pony hair, this is a very for either rough or contaminated surfaces or popular and also economical, fingerprint brush. multi coloured surfaces where it may not be Each brush is supplied in a clear plastic tube to possible to choose a conventional powder assist storage and avoid damage to bristles. which separates the latent print from its background. Easily applied with a soft brush, this powder fluoresces at slightly different wavelengths to provide a choice when dealing with problematic backgrounds. FO101688 Size £5.23 ea FO130470 Colour Quantity FO101690 £7.60 ea FO130475 Small Red 25 g Large Green 25 g Inkless Fingerprint Elimination Kit Magnetic Fluorescent Powder The easiest, cleanest and quickest way to obtain elimination fingerprints in 50g Pot Similar to ordinary fluorescent the field. Specially designed forms come in a durable vinyl case which is powders this magnetic fluorescing powder maintenance free and instantly ready to use. is applied with a magnetic applicator and choice between Red and Green is dependent Contents: 50 pieces. on the surface to be examined. Red magnetic fluoresces strongly when viewed under wavelengths of light ranging from 450nm to 570nm. For use on plastic bags, glass and other smooth surfaces. FO101704 £39.75 kit FO130480 Colour Quantity £12.25 ea FO130485 £12.25 ea Red 50 g Green 50 g CSI Fingerprint Kit Magnetic Brush A very useful kit designed for students investigating fingerprinting, easily For use with magnetic powders, the magnetic applicator is the cleanest form of adaptable to suit your needs and lesson plans. Including an information powder application and causes least possible damage to the fragile fingerprint. booklet explaining fingerprinting and instructions for use. The spring loaded magnetic brushes allow for examination of both vertical and Kit Contents: horizontal surfaces. This also ensures maximum recovery of powder. • 1 user manual and carry case Our plastic magnetic fingerprint brush is made of rigid plastic, is spring loaded • 8 Fingerprint powders (4 magnetic, 3 fluorescent and 1 white) and has good powder holding capability due to the powerful magnet encased • 12 hinge lifters (4 of each black, white within its structure. Easy to handle, with a thick ridged shaft to improve grip and clear) ability. ••••• magnetic wand 2 fingerprint brushes 1pair of protective gloves 1 protective apron 1 protective face mask. FO130405 £81.91 kit FO130490 £35.81 ea Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 335
FORENSIC SCIENCE Fingerprints ● Forensic Science Teaching Resources Forensics Fingerprint Kit Forensic Chemistry of Dusting for Fingerprints Become a science sleuth as you practise the science of fingerprint detection and Identify and classify different types of fingerprints. Learn how to identify collection. different types of fingerprints and distinguishing characteristics, as well as dusting for fingerprints, the most commonly used method of fingerprint • Collect fingerprints by dusting them with black powder and lifting them detection. Includes a Teacher’s Manual, Student Guide and Analysis copy- • with clear stickers. masters. There is enough material for 15 groups. Design a fingerprint file card and take prints from your friends and K•••••it11111C55bpIonaaFHnkigctanekPngFnaAdeitdnscrMg:peertaairngpttenriniinSfgihteienBrsegrutsPsohwesder family. • Learn how the FBI classifies fingerprints. • Learn why our fingers leave prints and why they are such solid evidence in criminal investigations. Once you have mastered fingerprinting, put your skills to the test by playing a detective game to find and match prints. Complete with instruction guide. FO140115 £12.44 kit FO91794 £156.79 kit Forensic Chemistry of Fuming for Fingerprints Whose Fingerprints Were Left Behind? Utilise forensics techniques of fuming for your own fingerprints. Activities Evidence left behind at a crime scene can identify a potential culprit. Even in include fingerprint analysis, iodine and cyanoacrylate fuming. Learn how to this age of DNA, fingerprints and blood stains are still important at helping identify different types of fingerprints and distinguishing characteristics and to identify a criminal. In this experiment, your students will solve a crime by two different methods of chemical fuming to capture fingerprints. Includes a dusting for fingerprints and use fluorescent dust (not included) to search for Teacher’s Manual, Student Guide and Analysis copy-masters. There is enough and identify trace amounts of blood. material for 15 groups. •K•••••itbfimbfnCiinnrlasauoggtcgsrneekuhntrreceippdftnsyrruioiitisnnsnnt:ttgisnlcilgafetrenpdrsosswder Kit Contents: All you need: alcohol, fluorescent • 1 tube Super Bonding Glue dust, and long wave U.V. light. • 1 bottle Iodine Crystals For 10 lab groups. Complete in • 1 bottle Fingerprint Fixative 50 minutes. • 30 Fuming Trays • 15 sheets Black Plastic FO91770 £84.18 kit FO91855 Model For £60.55 kit S-91 10 lab groups Forensic Science Teaching Resources Fingerprint Identification Poster Forensic Science Work Book Learn to identify fingerprints like a professional investigator! Dimensions: 585 x 890mm. This is a nine month Guide for a weekly one hour Forensic Club that is an exciting project for everyone involved. It covers Forensic Science techniques, organising skills, team work, presentation and can be a valuable part of community service. The Forensic Club is also available with a CD containing the programme worksheets. These can be printed as required for a period of 1 year. FO62770 £18.69 ea Title £112.44 ea FO130455 Information Guide with CD 336 …inspiring tomorrow’s scientists through practical science.
337 FURNITURE Static Units 338 Kickstools345 Gratnells Trolleys 338 Clocks346 Power Trolleys & Trays 341 Stools346 Mobile Units 341 Benches347 Gratnells Trays 342 Taps347 Trolleys344 Fume Cupboards 348 Ladders345 Hazardous Storage 350
FURNITURE Static Units ● Gratnells Trolleys Tall Frames We now offer Gratnells tall frames, in three designs: Treble column to accept standard Gratnells trays; Single wide column with 4 steel shelves; Single wide column with steel shelf + 6 wide wooden trays - ideal for storage of burettes, pipettes or large flat materials. Standard Gratnells trays are not included but a wide selection of trays are available. Don’t forget to add a pair of runners for each tray! Additional steel shelves (2 pack with clips) and wooden trays (complete with runners) are also available. Frames are supplied in grey epoxy paint coating and come complete with a top, adjustable feet and diagonal back bars. Dimensions (H x W x D): 1850 x 1055 x 420mm. AB C D Type £399.29 ea SPARES & ACCESSORIES TR110150 £512.48 ea TR110165 C Additional Steel Trays, pack of 2 £91.61 pk TR110155 A 3 column (without trays & runners) TR96540 £5.88 pr B Wide column with 4 steel trays D Runners Gratnells Trolleys Gratnells School Trolleys Steel frame trolleys. Supplied with steel runners but without trays. AB C £180.05 ea TR69100 Type Dimensions No. of trays £292.51 ea TR16300 £362.74 ea TR69110 A Single 85 x 37 x 42 cm (H x W x D) 6 B Double 850 x 710 x 420 mm (H x W x D) 12 C Triple 85 x 105.5 x 42 cm (H x W x D) 18 338 …inspiring tomorrow’s scientists through practical science.
Gratnells Trolleys FURNITURE Rover Trolley Tough and practical, the Gratnells Rover has been designed to carry trays over any terrain and help you move heavy loads around with ease. The Gratnells Rover is a heavy duty metal trolley with pneumatic tyres, runners • 26 cm pneumatic tyres for all terrains to hold Gratnells trays, and a strap to secure your trays for transport. Suitable • Five sets of runners allow a variety of possible tray combinations for use indoors and out, and up and down stairs. • Strap to secure the trays and contents Supplied with trays in a range of configurations. Compatible with Gratnells • Supplied fully assembled PowerTray and SmartCase. • Dimensions (H x W x D): 117 x 76 x 56 cm • Stylish curved silver frame A B C D NEW E TR180900 No. of trays ✓ £218.69 ea TR180901 ✓ £218.69 ea TR180902 A 3x Extra Deep ✓ £218.69 ea TR180904 B 3x Deep ✓ £218.69 ea TR180906 C 2x Jumbo ✓ £224.94 ea D 1x Shallow, 1x Deep, 1x Jumbo E 1x Jumbo, 1x Extra Deep, 1x Smart Case Callero Plus Mobile Trolley Units • New stop safe runners • Delivered fully assembled in mainland UK This range of science storage trolleys from Gratnells offers several advantages • Delivered for self-assembly overseas over standard trolleys, including extra storage, larger castors, enclosed metal • Can be delivered assembled overseas for an additional charge trolley frames and stop-safe runners. Available in the following tray colours: Red; Lime; Yellow; Green; Orange; • 25% extra storage Cyan; Silver; Blue. • Larger castors for improved stability PLEASE STATE TRAY COLOUR WHEN ORDERING UNITS. • Enclosed metal framing, to reduce cleaning needs and boost security • Improved ergonomic design E • Versatile storage, with a wide range of modern colour options AC BD F Type Height Width Depth No. of trays FU160700 A Double Column 107.5 cm 69 cm 43 cm 16 shallow £306.25 ea FU160705 69 cm 43 cm 8 deep £293.75 ea FU160710 B Double Column 107.5 cm 69 cm 43 cm 8 shallow + 4 deep £300.00 ea FU160715 102 cm 43 cm 24 shallow £400.00 ea FU160720 C Double Column 107.5 cm 102 cm 43 cm 12 deep £387.50 ea FU160725 102 cm 43 cm 16 shallow + 4 deep £393.75 ea D Triple Column 107.5 cm E Triple Column 107.5 cm F Triple Column 107.5 cm Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 339
Gratnells 2018 advert - Callero V2.indd 1 ADVERTISEMENT 27/02/2018 13:31
Power Trolleys & Trays ● Mobile Units FURNITURE Gratnells PowerTray and PowerTrolley offer a convenient solution to storing and charging USB devices. For a video, visit timstar.co/PowerTrayTrolley PowerTrolleys PowerTrays The PowerTrolley from Gratnells has been specifically designed to PowerTrays from Gratnells - storage and charging in one handy school tray. accommodate Gratnells PowerTrays, offering a safe and secure option to store, These PowerTrays store, charge and sync up to ten USB devices at optimum charge and sync up to 30 USB devices in a compact trolley. With one of the speed, using the built-in Dynamic Device Recognition technology. smallest footprints on the market, the Gratnells PowerTrolley is perfect for any school or office environment, combining portability, security and functionality. • Charge & Syncs up to 10 devices • Built-in digital device recognition PowerTrolleys hold either 3 Deep PowerTrays or 2 Extra Deep PowerTrays. • Compatible with 100s of USB devices • Updatable firmware for compatibility with future devices • Lockable Castors • Fits furniture which takes Gratnells trays • Robust Locking System • 270° door hinges AB • Uniquely designed runners with stop feature • Height: 790 mm (957 mm including handle) • Footprint: 423 x 545 mm (W x D) A BC TR170910 Colour £312.50 ea TR170900 Size Type £312.50 ea TR170912 £312.50 ea TR170920 £348.75 ea TR170914 A Blue £312.50 ea TR170902 A Deep Charge £373.75 ea B Grey TR170922 B Extra Deep Charge £411.25 ea C White Charge & Sync Deep Charge & Sync Extra Deep Mobile Units Mobile Storage Units 30 DAY DIRECT DELIVERY A range of quality Mobile Tray Storage Units. Made from scuff resistant light oak laminate panels. Supplied without trays. AB C TR76900 Type Dimensions No. of trays £124.99 ea TR76902 A Single 63 x 36 x 45 cm (H x W x D) 6 £195.94 ea TR76904 B Double 63 x 69 x 45 cm (H x W x D) 12 £234.29 ea C Triple 63 x 103 x 45 cm (H x W x D) 18 Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 341
FURNITURE Gratnells Trays Shallow Deep Extra Deep Jumbo Dimensions (L x W x D): Dimensions (L x W x D): Dimensions (L x W x D): Dimensions (L x W x D): 427 x 312 x 75mm. 427 x 312 x 150mm. 427 x 312 x 225mm. 427 x 312 x 300 mm. Price (ea) SHALLOW DEEP EXTRA DEEP JUMBO £3.15 £5.11 £6.34 £7.66 Translucent TR110120 Light Grey TR110100 TR180210 ✓ TR110140 TR110145 Jet Black TR180110 ✓ TR150100 TR180320 ✓ TR180415 ✓ Sunshine Yellow TR16184 Tropical Orange TR150000 TR110135 TR160305 TR160400 Flame Red TR16174 TR16183 TR69015 TR16189 Fuchsia Pink TR110115 TR110130 TR160315 TR160410 Plum Purple TR16173 TR110125 TR69010 TR16188 Midnight Blue TR110110 TR180200 ✓ Royal Blue TR110105 TR16181 N/A N/A Cyan Blue TR180100 ✓ TR160200 TR160310 TR160405 Forest Green TR16171 TR180205 ✓ Grass Green TR160100 TR16182 N/A N/A Jolly Lime TR180105 ✓ TR160205 TR69000 TR16186 Dark Brown TR16172 TR16180 TR160300 TR160105 N/A N/A N/A N/A TR69005 N/A TR16187 N/A N/A N/A Lids for School Trays Inserts Fits all Gratnell trays. For shallow trays. AB CD TR16190 £2.23 ea TR16195 Type Quantity £20.39 pk TR16196 £20.39 pk 342 TR16197 A 3 section 6 £20.39 pk TR16198 B 4 section 6 £20.39 pk C 6 section 6 D 8 section 6 …inspiring tomorrow’s scientists through practical science.
Gratnells Trays FURNITURE Foam Inserts B C For Deep trays. A D F E G TR69050 Type £4.94 ea TR69055 £4.94 ea TR69060 A 30 Bottles £4.94 ea TR69061 B 30 Calculators £4.94 ea TR96544 C 30 Junior Lab Glasses £4.94 ea TR96546 D 20 Adult Lab Glasses £4.94 ea TR106500 E 108 test tubes, 15 mm diameter £7.15 ea F 56 boiling tubes, 25 mm diameter G 4 Digital Balances Wire Test Tube Holder Customisable Gratnells Tray Insert Epoxy coated steel wire test tube holder for up to 108 x 25mm test tubes Ideal for storing irregularly shaped items securely, this Gratnells trays insert has (boiling tubes). The rack has been designed specifically to fit into a Deep scored squares, which can be removed to form the shape required. Gratnells tray. TR96556 £52.76 ea TR160900 £4.94 ea Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 343
FURNITURE Trolleys Trolleys, Fixed Tray Laboratory Trolley, Economy These high quality, all steel general purpose trolleys are of a fully welded A robust general purpose trolley. construction with tubular end frames and come with 100mm swivel nylon castors offering a carrying capacity of 200kg (uniformly distributed load). • Easy-Clean Polypropylene Shelves Trolley shelves are supplied with 30mm retaining lip to 4 sides as standard. • Quiet, heavy-duty braked castors Colour: Blue. Dimensions (L x W x H): 1060 x 460 x 950mm. • Flat-packed for easy assembly • Maximum weight capacity: 150 kg A • Dimensions (L x W x D): 960 x • 415 x 830 mm 35 DAY DIRECT DELIVERY Weight: 11.2 kg NEW B TR180000 ✓ £118.75 ea Laboratory Trolley TR106520 Type £299.94 ea This multipurpose range of Laboratory Trolleys has been designed with many TR106524 £337.44 ea different applications in mind. The trolleys are chemical resistant and are A 2 tier used in research, medical, industrial and education labs all over the world. All B 3 tier trolleys in the range are lightweight, have a safe working load of 250kg and are supplied with precision bearing castors with 2 brakes. They are ergonomic Tray Trolleys in design, attractive in appearance and are manufactured using the highest quality, nylon fibre blended polymers, which are resistant to the harshest Enamelled steel construction with removable plastic trays and four swivel castor working conditions. Complete with instructions and a rubber construction tyred wheels. Max. load 127kg. mallet for easy self-assembly. BEST•••••F•ea1B2MDWtl05uuauip00rrclaetemkkispbgCmC:ulellhroepc&eaaaomdnsLsteiicogcaarhupsltsaweR-cee2istigyibshtraat nket sNylon Trays SELLER Sturdy Aluminium CE marked Polymer •• Frame A B C 40 DAY DIRECT DELIVERY TR16310 Dimensions No. of trays £362.50 ea D E TR16315 £443.75 ea 75.5 x 45 x 98.5 cm (L x W x H) 2 75.5 x 45 x 103 cm (L x W x H) 3 Trolley, Folding Box This lightweight trolley has smooth rolling rubber tyres, an adjustable telescopic handle, folds down completely for easy storage or carrying and reopens again in seconds. Dimensions (L x W x H): 380 x 360 x 330mm (excluding handle). Height Length Width No. of Shelf shelves height TR140100 A 102 cm 85 cm 48 cm 3 30 cm ✓ £293.75 ea TR140105 £256.25 ea TR140110 B 95 cm 85 cm 48 cm 2 55 cm £318.75 ea TR140115 £331.25 ea TR140120 C 108 cm 85 cm 48 cm 4 17 cm £368.75 ea D 95 cm 110 cm 52 cm 2 55 cm TR130500 £31.55 ea E 102 cm 110 cm 52 cm 3 30 cm 344 …inspiring tomorrow’s scientists through practical science.
Ladders ● Kickstools FURNITURE Highback Stepstool Step Ladder White painted steel high back stepstool, 2 steps. Lightweight aluminium step ladder with three steps and top platform and non- Features: slip buffers on legs. Height to platform 870mm. • Doubles as a step or a stool BEST • Clean to handle painted finish • Large rubber matted treads SELLER • Folds flat for easy storage • Conforms to EN14183. • Suitable for professional and domestic use • Top tread height: 470mm • Weight: 6.0kg ST106260 ✓ £47.65 ea Promaster Stepladder These Aluminium Stepladders are DN131 quality, designed for industrial use. A range of heights are available. Features: Secure deep non-slip treads High safety handrail Platform to support rail height 0.60m (2’) Suitable for professional and domestic use ST106274 No. of steps Platform height £52.49 ea ST14310 £50.63 ea ST106276 £60.89 ea 4 80 cm BEST 5 103 cm SELLER Kickstools Kicksteps Lightweight steel kicksteps available in a choice of 4 colours. Features: • Safe and convenient to use • Castors retract when steps are in use • Non slip rubber treads • Uploaded height: 430mm • Top diameter: 280mm • Base diameter: 410mm • Weight: 4.5kg ST106264 Colour ✓ £39.20 ea ST106266 £39.20 ea ST106268 Red £39.20 ea ST106270 Grey £39.20 ea Black Blue Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 345
FURNITURE Clocks ● Stools Wall Clock Atomic Wall Clock Quartz, battery operated with sweep second hand. An atomic wall clock with sweep second hand that offers the ultimate in time BEST keeping - an accuracy of one second in a million years. Containing an integral SELLER antenna which is set to pick up the time code signal from B.T. Powered by 1 x AA battery. CL04498 Colour Diameter £16.19 ea Black 25 cm Radio Controlled Clock 30 cm (12”) radio controlled wall clock. Sets itself to the correct time after the battery is fitted. Features bold markings designed to be read easily from a distance. • Accuracy: 1 second in a million years • Takes an AA battery (not supplied) CL04495 Colour Diameter ✓ £11.06 ea CL160124 £28.01 ea CL100695 £12.68 ea White 25 cm Black 25 cm Stools 30 DAY DIRECT Titan, High Back Stool 30 DAY DIRECT DELIVERY DELIVERY Traditional Wooden Lab Stool Silver Frame with Black/Blue/ Charcoal/Grey/Green/Yellow/ Traditional wooden laboratory stool in beech. Burgundy Shells. FU140110 Dimensions Height £55.10 ea FU140115 £55.10 ea 84.5 x 55 x 53 cm (H x W x D) 44.5 cm 96 x 55 x 53 cm (H x W x D) 56 cm Flat Seat Stacking Stools Hardworking, hardwearing, tough yet lightweight flat seat stacking stools. NOTE: Please state colour when ordering: Red/Blue/Green and Charcoal seats - black frame. 30 DAY DIRECT DELIVERY Dimensions Height £58.94 ea FU71954 Dimensions Height £58.93 ea FU140160 61 x 37 x 37 cm (H x W x D) 61 cm 61 x 40 x 41 cm (H x W x D) 61 cm 346 …inspiring tomorrow’s scientists through practical science.
Benches ● Taps FURNITURE Mobile Science Bench A fully functional mobile science laboratory for secondary & tertiary level schools and institutions. The mobile science bench allows you to teach science anywhere in the school. Wheel the bench in to any classroom, plug in and start your lessons. This versatile mobile laboratory offers mains power, gas and running water with integrated ICT options. Weight: 200kg approx. Dimensions (W x D x H): 1400 x 700 x 934mm. Features: • Laboratory grade working surface: Trespa Athlon • Pull out surfaces for extra working space • Gratnells trays provide ample storage space for equipment • Lockable doors for safety • Push/pull handles for easy manoeuvrability • Lockable castors for stability • Mains plug with minimum 4 socket outlet • Double gas tap & tubing for bottled gas* • Running water via clean & waste water tanks, water pump and waste disposal system • Screw in sockets for standard retort stands • Computer monitor arm • Computer space lockable *Note: Requires 3.5/4.5kg Butane/propane gas cylinders and regulator to be purchased separately by institution. FU110200 £2,999.94 ea 14 DAY DIRECT DELIVERY Taps Water Taps Gas Taps Gas Taps - Single Water Taps For natural gas or LPG. BSP 3/8” male thread. BSP 1/2” male thread inlet for vertical bench mounting. For use with hot or cold water. BEST B C SELLER A TA14902 Type £43.69 ea Standard Tap, Vertical Bench Mounting Gas Taps - Two Way D E ✓ £72.70 ea For natural gas or LPG. BSP 3/8” male thread. Outlets are 90° apart. £74.66 ea TA14910 Type £80.47 ea TA14911 £124.00 ea TA14912 A Single Swan-neck - Fixed £156.19 ea TA14914 B Single Swan-neck - Swivel TA14916 C Single pillar bib tap D Two-way pillar bib tap E Three-way pillar bib tap TA14905 Type ✓ £55.75 ea WATER TAPS TA58515 £67.24 ea Standard Tap, Vertical Bench Mounting These water taps are supplied with moulded serrated nozzles which NRV Tap, Vertical Bench Mounting can’t be removed. They also feature nonrising spindles, rubber sealed valves, and bench mounted antirotation devices as standard. The handwheels are coded to DIN EN 13792. Tel: +44(0)3333 442 443 Fax: +44(0)1270 250601 www.timstar.com 347
FURNITURE Fume Cupboards Labvent Airscience Filtered Fume Cupboard 60 DAY DIRECT DELIVERY The Labvent Air Science Series ductless demonstration fume cupboard hoods are designed for individual and group applications where clear front, side and rear walls permit 360 degree visibility. The high efficiency carbon filtration and air management system protects both the user and the classroom environment from hazardous vapours generated on and above the work surface. The Filtered fume cupboard units are mounted on heavy duty transfer carts and are sized to fit through standard doorways for ease of transportation. Simplistic filter change and improved filter clamping, prevents bypass leakage and the low airflow alarm warns of unsafe conditions. Compliant with ANSI, OSHA, ANFOR, and BSI safety standards, CLEAPSS tested and approved. The Lab Vent II offers personnel and environmental protection, optimal energy savings and zero toxic emissions. Product Features and Options: • Control panel: Electronic controls and displays • Switches for blower and low airflow alarm • Power Inlet (right side and top) • Air Velometer: An analogue air velocity meter in the field of vision of the user • Gas Petcock • Gooseneck Water Faucet • Cup Sink • Internal diffuser • Integrated Centrifugal Fan motor blower assembly • Front Access Multiplex TM filtration system with filter clamp • system Electrostatic Pre Filter 99.5€% effective electrostatic pre filter is accessible from the inside of the chamber to contain the release • of any particulates that it traps Manual speed controller: The operator may set the centrifugal fan motor speed as desired • Internal fluorescent lamp • Duplex electrical outlet: externally mounted • Airflow alarm: A continuous air velocity monitoring system alerts the operator upon unacceptable values • Main Controls: Petcock and water faucet controls • Cart Handle: Located on the left and right sides • Filter ID Window: A strategically placed front cover window shows the installed filter part number and installation date for convenience • and to encourage timely filter replacement. Work surface: The internal work surface is fitted with a polypropylene • tray. Pass through ports: Electronic cords and cables are safely routed into • the cabinet through ports on the back and side walls Double hinged self-locking front sash: When closed, the cabinet sash protects the operator with 100 FPM airflow. The sash has an easy to open latch • 1.5 m flexible hose for water connection • 1.5 m flexible hose for gas connection • 2.0 m flexible waste pipe, ½ inch Vulcathane • 1 x Chain, hook and eye • Dimensions (W x D x H): 1003 x 724 x 1968€mm • Weight: 123€kg. Price includes delivery and commissioning in the UK mainland. An additional cost will apply if the fume cupboard is to be taken upstairs, without the use of a lift. Please ask for a quote for export delivery. FU120100 £4,993.75 ea Price includes delivery and commissioning - UK mainland only. For export and island delivery, please ask for a quote. 348 …inspiring tomorrow’s scientists through practical science.
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