The raw analog output from a thermocouple (TC) or resistance temperature detector (RTD) must be converted into a digital signal before the temperature can be interpreted. It can be sent in its raw form to a simple digital display, small temperature loop controller, transmitter or the temperature I/O card of a larger automation system.

Setpoint relay and analog-to-frequency transducer measures 0.244” (6.2 mm) to allow them to be installed in tight spaces. 

This article is intended to address when and if a bypass capacitor is required for an analog temperature sensor.

Series ADC accepts analog signals from up to eight loop or separately powered current, voltage or temperature sensors.