The transmitter can either be mounted inside or on the surface of a protection head. The thermocouple extension wires are replaced by two copper wires used to transmit the 4 to 20 mA signal and supply ...

You can achieve accurate resistance-temperature-detector sensor measurements without having to resort to using a precision current source.

Rosemount 3144S Temperature Transmitter offers 0.05-degrees Celsius accuracy, 20-year stability, advanced diagnostics and enhanced ease-of-use.

This software-controlled RTD emulator produces voltages that cover the output range of the sensor. It supports all three RTD wiring configurations and associated sense-wire configurations.

To calibrate this circuit, replace the sensor with a precision decade box. Set the decade box to simulate 0°C and adjust the offset trim of R 2 for an output of 0V at Pin 7 of IC 3 .