Resistance (RTD) cable sensor for surface temperature measurement in industrial applications

  • Hose clamp or thread connection
  • Brass contact block for fast response times
  • -50…+150°C / -58…+302°F

OPTITEMP TRA-W20 – Standard version

Resistance (RTD) cable sensor OPTITEMP TRA-W20 – Standard version

The OPTITEMP TRA-W20 is a cable sensor (RTD) to be mounted with M3 bolts or with hose clamp. The temperature sensor is suitable for measuring surface temperature on pipes or machinery parts (bearings, gear boxes etc.). Its measuring range is -50…+150°C / -58…+300°F. The RTD features a Pt100 or Pt1000 measuring element that is placed in the measuring tip filled with heat transfer compound for fast response times and vibration resistant operation. The OPTITEMP TRA-W20 comes with ETFE insulated connecting cable. It can be provided with free insulated flying wires for installation in applications where connection terminals already exist.

Product highlights

  • Non-intrusive surface temperature measurement
  • Available with flying wires, single and double versions
  • Sheath material: Brass
  • Tolerance class A according to IEC 60751 as standard
  • Available with ETFE insulated cable
  • Standard or customised lengths
  • Different connection heads available (IP54…IP68)
  • With optional temperature transmitter

Typical applications

  • Applications with vibrating, oscillating or partly rotating movements
  • Temperature measurement in bearings, gear boxes and pipes
  • Suitable for a wide range of applications in almost all industries
    • Plant engineering
    • Machinery and apparatus / OEM

Product details

Product categoryResistance (RTD) cable sensor
Alternative product categoriesPipe mounted sensor, Potentiometer, Pt100 element, Pt100 probe, Resistance temperature detector, Resistance thermometer, RTD, Surface mounting pad type RTD, Surface sensor

Technical data

Product typeTemperature sensor
Measurement principlesResistance (RTD)
Measured mediaGases, Liquids, Solids
Measuring pointSurface
Measuring insert typeNon-replaceable RTD
Measuring insert replaceableNo
RTD element type1 x Pt100, 1 x Pt1000
RTD configuration4-wire
Temperature sensor connection type optionETFE insulated connecting cable, Flying wires
Sheath dimensions5 x 5 x 25 mm/
0.2 x 0.2 x 0.98 in
Process temperature-50…150°C/
Sensor mountingClamp-on, Screw-on

Process connections

Thread connectionsM 3
Other connectionsHose clamp

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