Digital Voltmeter

The digital voltmeter may be used to measure the thermocouple voltage and determine the temperature of the hot junction in the indium sample. This voltmeter is in parallel with the computer data acquisition system. When used in conjunction with the digital stop watch, the temperature-time curve for the indium can be obtained during heating and cooling by reading the voltmeter and converting the measured voltage into Celsius temperature.

Shorting Plug

A shorting banana plug is provided so that the zero of the voltmeter can be checked or adjusted before data acquisition. Place the plug across the voltmeter terminals and determine any offset error.