Thermocouple transmitter

TC500

Thermocouple transmitter for process temperature signals from Type J, K or S thermocouples, with programmable -150...1600 °C range, 0/4...20 mA or 0/2...10 V output and 3-port isolation.

Introduction

Process control systems need temperature signals that are easy to scale, transmit and monitor. This transmitter converts thermovoltages from Type J, K or S thermocouples into standard analog signals, giving control cabinets a temperature-linear 0/4...20 mA or 0/2...10 V DC output.
 
The measuring range is programmed from the side using four rotary switches in 25 °C steps, with fine adjustment of start and end value by \pm5 %. This makes it practical for tailored process ranges across Type J from -100...800 °C, Type K from -150...1200 °C and Type S from 0...1600 °C.
 
Integrated cold junction compensation and full 3-port isolation support stable operation in industrial installations. A 2-color LED shows power, operating mode and diagnostic states, including sensor break, input range errors and incorrect DIP-switch position.

Easy scaling
Easy scaling
Rotary switches set the measuring range in 25 °C steps across -150...1600 °C.
Broad input choice
Broad input choice
Type J, K and S thermocouples cover ranges up to 1600 °C
Flexible output
Flexible output
Select 0/4...20 mA or 0/2...10 V DC for standard control systems.
Clear diagnostics
Clear diagnostics
A 2-color LED indicates operation, sensor break and configuration errors.

Features

Thermocouple input

The input is programmable for Type J, Type K and Type S thermocouples using front-side DIP switches.

Measuring range setup

Start and end values are programmed with four side rotary switches, with intermediate adjustment via two trim pots.

Cold junction compensation

Integrated cold junction compensation is included for thermocouple signal processing.

Output configuration

The output signal is temperature linear and can be selected as current or voltage using front-side DIP switches.

Fault response

A sensor break moves the output to the end value plus 1 % for overflow indication. Sensor short circuit has no indication.

DIN rail housing

The polycarbonate case is designed for TS35 or TH35 DIN rail mounting and uses screw terminals up to 2.5 mm².