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Essential details:3HNA023093-001 Thermocouple/mV Input Module
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3HNA023093-001 Thermocouple/mV Input Module
3HNA023093-001 Thermocouple/millivolt input module works as follows:
Thermocouple is to connect one end of two different metal materials together, the other end is connected to a terminal above, and then use a voltmeter to measure the voltage at both ends of the terminal, generally can measure a small voltage value.
If the material of the two wires is not the same, such as a copper wire and a wire, because the thermal conductivity effect of the two wires is not the same, the cold end temperature of the two wires is not the same, which means that the number of free electrons is not the same, at this time the voltmeter can measure a voltage value.
The 3HNA023093-001 Thermocouple/millivolt input module is a product of the ABB brand for temperature measurement and conversion. It directly measures the temperature and converts the temperature signal into a thermoelectric motive force signal, which is then converted into the temperature of the measured medium by an electrical instrument (secondary instrument).