Description
Technical Details
Voltage rating | 50V DC max. |
Capacitance range | 100pF to 9.9999µF in 100pF steps |
Accuracy | ±10% per decade |
Residual capacitance | 40pF |
Code: ECS8100
Our five-decade capacitance substitution box has been specifically designed for the schools market with its clear display and ease of use.
Technical Details
Voltage rating | 50V DC max. |
Capacitance range | 100pF to 9.9999µF in 100pF steps |
Accuracy | ±10% per decade |
Residual capacitance | 40pF |
Settings | Capacitance Substitution Box remove | Dual Output PSU (12VAC/12VDC) remove | Mounted SBC Lamp Holder - Pack 10 - 12V, 24W Lamp remove | Resistance Substitution Box remove | BERT - Battery Electrical Resistance Tester remove | Lamp Brightness Experiment remove | ||||||||
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Name | Capacitance Substitution Box remove | Dual Output PSU (12VAC/12VDC) remove | Mounted SBC Lamp Holder - Pack 10 - 12V, 24W Lamp remove | Resistance Substitution Box remove | BERT - Battery Electrical Resistance Tester remove | Lamp Brightness Experiment remove | ||||||||
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Description | Code: ECS8100
Our five-decade capacitance substitution box has been specifically designed for the schools market with its clear display and ease of use.
| Code: IPC-1402-P
This instrument (IPC-1402-P) is designed as a general purpose laboratory power supply. It has two isolated outputs which operate independently of each other.
The AC output is selected by means of a 4-position switch on the front panel. Selected voltages are 2, 4, 6 and 12V at 4A continuously, or up to 5A for periods of 1 hour. The output is supplied via a pair of 4mm sockets on the front panel colour coded white. The output is protected from overload or short circuit by a current sensing circuit breaker mounted on the front panel.
The DC output is smoothed and regulated and is continuously variable from 0V to 12V at currents up to 3A. Voltage ripple typically less than 50mV. The output is supplied via a pair of 4mm sockets on the front panel colour coded red (positive) and black (negative). The output is protected from short circuit or overload by an electronic regulator.
The outputs may be used simultaneously as long as the combined load does not exceed 3A.
Power on is indicated on the front panel by a green LED. An illuminated on/off switch is mounted on the rear panel adjacent to a fused IEC mains inlet. Enclosed in a robust metal case with a durable powder coated finish. Supplied with detachable mains lead and instructions.
A pair of graphs showing how the output voltage of this power supply varies as the current supplied is increased is included in the instruction leaflet for this instrument.
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Solid steel Small Bayonet Cap (SBC) lamp holder with a tough powder coat paint finish and a solid brass lamp holder with 2 x 4mm electrical sockets. Ready to use supplied with a 12V 24W Lamp.
| Code: ERS8050
A six-decade resistance substitution box designed for use in educational establishments.
| Code: EBR5010
BERT is a simple way of introducing electrical resistance and resistivity to a class. It consists of a circuit board that may be drawn on using the supplied pencil. Connecting the two sides of the board together by a pencil line gives a conducting track and the LED lights. The brightness of the LED gives an indication of the resistance of the path. Drawing the line thicker decreases the resistance, as does shortening the path. Resistances in parallel may be studied and a “volume control” simply made.
BERT may also be used to test various materials to see whether they are conductors or insulators. Liquids and pastes may also be tested. The conductivity of the class may be studied as well as how a switch works. When you are finished the pencil lines may be removed with the supplied eraser.
| Code: ELB8000
Students often think that the brightness of a lamp is only dependent on the current flowing through it. The unit allows the teacher to safely switch a 12V lamp in series with a mains lamp and study the current flow through them.
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Content |
Technical Details
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Description: Dual Output PSU (12VAC/12VDC)
Part Number: IPC-1402-P
Electrical Supply: 220-240VAC, 50-60Hz
Dimensions: 179 x 190 x 85mm overall
Mass: 2.9kg
AC Output Voltage Range: 2, 4, 6 and 12VAC
Maximum AC Output Current: 4A (5A upto 1 hour)
DC Output Voltage Range: 0 to 12VDC
Maximum DC Output Current: 3A
| Code: OPM5024
Pack of 10
Solid steel Small Bayonet Cap (SBC) lamp holder with a tough powder coat paint finish and a solid brass lamp holder with 2 x 4mm electrical sockets. Ready to use supplied with a 12V 24W Lamp.
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A stunningly effective way of teaching the basics of electrical resistance.
The kit comprises of:
| This includes kit includes the use of a safety mains lamp socket, which has a built in a switching system that only allows it to be switched on when a lamp is inserted. We have also included two switches, which must be pressed simultaneously to route the mains current through the low voltage lamp. Furthermore, the switches are sited at opposite ends of the case, requiring two hands to operate them. However, it must be appreciated that you are working with potentially lethal voltages and currents and therefore extra care should be taken.
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