Temperature transmitter

MU500L

Temperature transmitter for RTD sensor signals, converting Pt100 or Pt1000 inputs into 0/4–20 mA and 0/2–10 V outputs with selectable ranges, galvanic isolation and DIN rail mounting.

Introduction

Stable temperature signals are essential when RTD sensors feed a process control system. This transmitter converts Pt100 or Pt1000 field signals into standard analog outputs, helping control cabinets receive clean, usable values from industrial temperature measurements.
 
The measuring range can be selected freely within the specified start value and span limits, making the unit suitable for tailored temperature tasks instead of fixed-range installations. Both 0/4–20 mA and 0/2–10 V outputs are available simultaneously, giving integrators flexibility when connecting to PLCs, controllers or display units.
 
For dependable cabinet operation, the supply voltage is isolated from input and output, with 230 V AC or 24 V DC supply versions available. Front-side trimpots allow adjustment of start value, 4 mA/2 V and span, while the 22.5 mm polycarbonate case mounts directly on a TS35 DIN rail.

Flexible ranges
Flexible ranges
Start value and span are freely selectable within the specified Pt100 or Pt1000 limits.
Dual outputs
Dual outputs
Use 0/4–20 mA and 0/2–10 V simultaneously for flexible process integration.
Isolated operation
Isolated operation
Supply voltage is isolated from input and output for cabinet-based control systems.
Compact mounting
Compact mounting
The 22.5 mm polycarbonate case mounts on TS35 DIN rail.

Features

RTD sensor input

The transmitter accepts Pt100 or Pt1000 RTD signals in 2-wire or 3-wire connection.

Analog output selection

 Current and voltage outputs are selectable by link, with 0/4–20 mA and 0/2–10 V variants available.

Front-side adjustment

Start value, 4 mA/2 V point and span are adjusted using 20-turn trimpots on the front side.

Line resistance compensation

The 3-wire configuration provides automatic line resistance compensation up to 10 Ω symmetric line resistance.

Sensor fault behavior

A broken line drives the output to the maximum value, while a short circuit drives it to the minimum value.

Power supply versions

The transmitter is available for 230 V AC or 24 V DC supply, depending on the ordered version.