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Modular thermometer with RTD or TC insert

Product picture of modular thermometer MLTTS00 ©Endress+Hauser

Designed for use in the Oil & Gas industry. For installation in already existing thermowells

The modular and robust thermometer finds its use in applications for the Oil & Gas industry but also in almost all industries. An optional head transmitter, with all common communication protocols, makes the device ready to use with enhanced measurement accuracy and reliability compared to directly wired sensors. The thermometer can be ordered either with resistance (RTD) or with thermocouple (TC) insert.

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  • Benefits

    • High degree of flexibility thanks to modular design with standard terminal heads as per DIN EN 50446 and customer-specific immersion lengths

    • Types of protection for use in hazardous locations: Intrinsic Safety (Ex ia)

  • Field of application

    Designed for use in the Oil & Gas industry with universal range of application:

    • Suitable for installation in already existing thermowells

    • Measuring range: Resistance insert (RTD) –50 to +500 °C (–58 to +932 °F), thermocouple (TC): –40 to +1 100 °C (–40...

Features and specifications



  • Measuring principle

    Resistance Temperature Detector

  • Characteristic / Application

    metric style

    modular temperature assembly

    universal range of application

    suitable for hazardous areas

    with neck

    to use with thermowell

    usable with insert StrongSens

  • Terminal head

    TA30D - E+H, aluminium - cover high

    TA30H – Alu – Cable Entry M20x1.5

  • Thermowell / protection tube

    to be used with thermowell

  • Insert / probe

    mineral insulated (MI), flexible

  • Outer diameter protection tube / Insert

    Insert: 6,0mm (0,24")

    Insert: 8,0mm Sleeve

  • Max. immersion length on request

    Not defined

  • Material protection tube/ thermowell

    to be assebled into existing thermowell

  • Process connection

    Thermometer connection G1/2" special fitting

  • Operating temperature range

    PT100: -50…500°C

    TC up to 1100°C

  • Max. process pressure (static)

    depending on Thermowell

  • Accuracy

    RTD Class A acc. to IEC 60751

    TC class 1 acc. To EN 60584

  • Response time

    depending on configuration

  • Integration head transmitter


  • Ex - approvals

    ATEX Ex ia

  • Certification

    Not defined

Documents / Manuals / Software

Accessories / Spare parts

Order code
    • Order code 71367427

      Spare parts kit ring D21/di 10xgreen,10p

      Packing unit: 10 pieces

    • Order code 71389488

      Extension cable TC IEC 2x type K, 3 pcs.

      L=180mm, 3 pieces

    • Order code TPC100-

      Insert TPC100

      Replaceable insert (MgO)

    • Order code TS111-

      Insert iTHERM TS111

      Replaceable. Metric version according DIN43735.

    • Order code TN15-

      Extension neck for thermowell TN15

      Neck tube made from welded parts, with thread connection to a terminal head form DIN B and different connections to a separate thermowell.

  • B
    • Nr B Order code TMT82-

      iTEMP TMT82, Transmitter HART

      2-wire temperature transmitter. Dual universal sensor input. Galvanic isolation 2kV (input/output). Application: RTD, TC, Ohm and mV. ::Highly reliable due to drift detection and sensor back up. ::Optional also for safety critical applications by means of SIL 2/3 acc. to IEC61508.

    • Order code TMT84-

      iTEMP TMT84, Transmitter PA

      Dual sensor input. Advanced diagnostics:sensor monitoring. PROFIBUS PA Profile 3.02. Galvanic isolation 2kV. Application: RTD, TC, Ohm, mV. Current consumption: 11 mA. Mounting: head form B, DIN EN50446. Factory setup: CH1: Pt100, 3-wire, oC. CH2: inactive. Differing configuration optional selectable.

    • Order code TMT85-

      iTEMP TMT85, Transmitter FF

      Dual sensor input. Advanced diagnostics: sensor monitoring. FOUNDATION Fieldbus protocol Galvanic isolation 2 kV. Application: RTC, TC, Ohm, mV. Current consumption: 11 mA. Mounting: head form B, DIN EN50446. Factory setup: CH1: Pt100, 3-wire, oC. CH2: inactive. Differing configuration optional selectable.

    • Order code TMT182-

      iTEMP TMT182, Head Transmitter HART

      Temperature transmitter, Protocol HART. Application: RTD, TC, Ohm, mV. 2-wire 4-20mA, galvanicisolation. Fault reaction: NAMUR NE 43. Mounting: head form B, DIN EN50446. UL listed.