Description

1. Mechanical assembly comprising of a high-power resistor (heater), heat exchange plates and an efficient fan-cooled heat sink. Two thermistors are used to measure the temperature on the sides of the thermoelectric device.
2. Heater controller unit to vary the power supplied to the resistor. Mains powered. It shows voltage / current / power and the temperature of the heater.
3. Fan controller unit to control the fan speed. Mains powered. The fan is a 4 wire Intel-spec unit and the controller allows adjustment of the fan’s speed and reads back the tacho frequency. The fan-side thermistor temperature is also shown on the display.
4. Low-power version of the RO2 I-V tracer and at-load tester. This unit is used when the thermoelectric device is acting as a power generator.