National Instruments SCC-TC02 Thermocouple Input Module

The National Instruments SCC-TC02 (Part Number: 777459-04) acknowledges input signals from B-, E-, J-, K-, N-, R-, S-, and T-type thermocouples. Every module contains thermistor hardware fueled by 2.5 V, to adjust for cold-junction impacts and can identify open thermocouple circuits. Every module has one thermocouple input channel, which consists of a gain of 100 differential enhancers and a dual-pole 2 Hz filter. The open-thermocouple recognition hardware incorporated can cause estimation mistakes. These errors are the aftereffects of regular mode voltage at the input of the SCC and current spillage into the signal leads. The 10 Mω inclination resistor in the NI SCC-TC02 Thermocouple Input Module makes this error insignificant. With the 10 Mω bias resistor associated with ground and the 10 Mω pull-up resistor associated with +5 VDC, a current leakage of roughly 0.25 μA (5 V/20 Mω) streams into the unbroken floating thermocouple. Long thermocouple leads result in bigger voltage drops because of lead resistance.

The user can connect the SCC-TC02 Thermocouple Input Module to any analog input socket on the SCC carrier. The socket selected determines which E/M Series DAQ device's channels receive the SCC-TC0X signals. If the user operates the NI SCC-TC02 in a double stage setup, the SCC-TC0X must be the main stage module. The module can then be linked to any attachment J (X+9) and connect the second-arrange SCC to attachment J (X+1).