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iTHERM ModuLine TM121

Product picture of Thermometer with RTD or TC insert TM121 ©Endress+Hauser

Thermometer with RTD or TC insert complete with manufactured thermowell produced from pipe material

RTD or TC assembly characterized by basic sensor technology, application in non-hazardous areas, standard extension neck, low-cost unit. The devices are available with optional Bluetooth®-enabled head transmitters with 4 to 20 mA output or HART® communication, providing enhanced measurement accuracy and reliability compared to directly wired sensors.

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  • Avantaje

    • Economical, reliable measurement

    • User-friendly from product selection to maintenance

    • Wide range of process connections

    • Easy and safe device setup and service using Bluetooth® communication

  • Domeniu de aplicare

    • Universal range of application

    • Application in non-hazardous areas

    • Measuring range: –50 to +650 °C (–58 to +1202 °F)

    • Pressure range up to 50 bar (725 psi)

    • Degree of protection: up to IP 68

Caracteristici şi specificaţii



  • Measuring principle

    Resistance Temperature Detector

  • Characteristic / Application

    metric style

    modular temperature assembly

    universal range of application

    with neck

    incl. thermowell / protection tube (metal)

  • Thermowell / protection tube

    welded protection tube or to be used with thermowell

  • Insert / probe

    Basis Sensortechnologie

  • Outer diameter protection tube / Insert


    9x1,25 mm

    11x2 mm

  • Max. immersion length on request

    up to 1.000,0 mm (39'')

  • Material protection tube/ thermowell

    316L (1.4404)

  • Process connection




    M20x1.5, M27x2, M33x2

    Compression fitting:

    NPT1/2", G1/2", G1"


    DN25 DN40 B1

    ASME 1" 150 RF

    ASME 1" 300 RF

    ASME 1 1/2" 150 RF

    ASME 2" 150 RF

    ASME 2" 300 RF

  • Tip shape


  • Operating temperature range

    Basic PT100 TF:

    -50 °C …200 °C

    (-58 °F …392 °F)


    Typ K up to 600 °C (1.112 °F)

  • Max. process pressure (static)

    depending on the configuration

  • Accuracy

    Class A acc. to IEC 60751

    Class B acc. to IEC 60751

    Class standard acc. to ASTM E230

    Class 2 acc. to IEC 60584-2

  • Response time

    t90 around 100 s

    depending on configuration

  • Integration head transmitter

    yes (4 … 20 mA; HART)

Documente / Manuale / Software

Accesorii / Piese de schimb

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