Resistance (RTD) temperature assembly for higher flow velocities and pressures

  • Thread connection
  • DIN-style based on form 9, welded multipart thermowell with straight tip
  • -40…+600°C / +1100°F

OPTITEMP TRA-TS37 – Standard version

Resistance (RTD) temperature assembly OPTITEMP TRA-TS37 – Standard version

The OPTITEMP TRA-TS37 is a threaded RTD sensor assembly with a straight barstock thermowell (DIN form 9). The temperature assembly for advanced requirements is particularly suitable for use in pipes, tanks or reactors where a higher mechanical stress resistance of the thermowell is required (e.g. petrochemical or oil and gas applications). It is designed for temperature measurement of liquids and gases up to +600°C / +1100°F.

The OPTITEMP TRA-TS37 features a modular design with a union nut neck tube that can be exchanged easily, even under operating conditions. This makes the temperature assembly very flexible. If it has been damaged from the outside, servicing can be carried out without process shut down. The resistance temperature device can be combined with most thermowells. It is available with ATEX and IECEx approvals.

Product highlights

  • Temperature measurement of liquids, gases and steam
  • Modular design: threaded standard neck tube for easy exchange under operating conditions
  • Thermowell material: 1.4404 / 316L or 1.4571 / 316Ti
  • Standard or customised lengths
  • Different connection heads available (IP54…IP68)
  • With optional temperature transmitter
  • Available as intrinsically safe (Ex i) and flameproof (Ex d): ATEX, IECEx

Typical applications

  • For applications with advanced requirements
  • Temperature measurement in pipes, tanks or reactors at higher flow velocities and pressures
  • Suitable for applications where assemblies complying with DIN standards are required
  • Primarily used in the petrochemical industry, the oil and gas industry as well as in industries such as:
    • Chemical
    • Power generation
    • Machinery and apparatus / OEM
    • Iron and steel
    • Pulp and paper

Product details

Product categoryResistance (RTD) temperature assembly
Alternative product categoriesPotentiometer, Resistance temperature detector, Resistance thermometer, RTD

Technical data

Product typeTemperature assembly
Measurement principlesResistance (RTD)
Measured mediaGases, Liquids, Steam
Measuring pointPipe
Measuring insert typeReplaceable spring loaded mineral isolated measuring insert OPTITEMP TR 100
Measuring insert replaceableYes
RTD element type1 x Pt100, 2 x Pt100
RTD configuration3-wire, 4-wire
Temperature sensor connection type optionCeramic terminal block, Flying wires, Temperature transmitter
Assembly with thermowellYes
Temperature assembly designDIN-style
Thermowell form (according to DIN 43772)Form 9
Thermowell tip designStraight
Thermowell typeBarstock
Thermowell diameters17 mm / 0.67"


Certificates/Approvals ExATEX, IECEx

Process connections

Thread connectionsMale:
G1/2, G3/4, G1
1/2 NPT, 3/4 NPT

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