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Pt100 temperature sensor - iTHERM CompactLine TM311

iTHERM CompactLine TM311
Compact thermometer

Metric/imperial RTD 4-20 mA/IO-Link compact thermometer for industrial and hygienic applications

TM311
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5-year warranty

Engineered for Confidence

Our Fundamental Selection instruments feature an extended 5-year warranty – a clear testament of our trust in their long-term reliability and performance.

Should a warranty case occur, you can count on a fast replacement process and minimal administrative effort – giving you peace of mind when it matters most and helping you keep your operations running smoothly.

Warranty terms apply

The extended warranty is subject to specific conditions. For full details, please refer to the locally applicable General Terms and Conditions (GTC), which can be found on the respective country page of our website.

TM311 thermometer without thermowell
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Compact Pt100 sensor TM311 with IO-Link

Platinum RTD sensor Pt100 with IO-Link and elbow pipe element
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Compact Pt100 sensor iTHERM CompactLine TM311 with IO-Link and elbow pipe element for clean operations

Application picture of TM311 in a hygienic process of a plant
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Suitable for aseptic processes

Compact Pt100 sensor TM311 with IO-Link

IO-Link digital communication technology

Specs at a glance

  • Accuracy

    class A acc. to IEC 60751

  • Response time

    t50 = 1 s
    t90 = 1.5 s

  • Max. process pressure (static)

    at 20 °C: 50 bar (725 psi)

  • Operating temperature range

    PT 100:
    -50 °C ...200 °C
    (-58 °F ...392 °F)

  • Max. immersion length on request

    up to 600,00 mm (23,62'')

Field of application

iTHERM CompactLine TM311 sanitary thermometer provides accurate and fast process temperature measurements in hygienic and aseptic applications. Its temperature sensor offers a 4-wire connection or feeds into a smart temperature transmitter with 4 to 20 mA, IO-Link (auto-detect) or switch output. Featuring TipSens technology, the RTD (Pt100; Class A) delivers response times as low as 1.5 s (t90) for optimum process control. This versatile device is a great choice to drive plant standardization.

  • Developed for universal use in sterile applications

  • High standardization potential for skid builders, machine and plant manufacturers

  • Measuring range: -50 to 200 °C (-58 to 392 °F)

  • Pressure range: Up to 50 bar (725 psi)

  • Protection class: IP69

  • Output: Pt100 (4-wire connection); IO-Link, 4 to 20 mA, 1x PNP switch

  • International approvals: 3-A, EHEDG, ASME BPE, FDA, EC 1935/2004, EN 2023/2006, TSE/ADI, GB4806-2016, GB9685-2016; Marine approval acc. to DNV GL

Benefits

  • Fast installation and easy commissioning:
    - Compact dimensions for installation in tight spaces
    - Standard M12 connector with IP69 for easy electrical connection
    - Recommended process immersion lengths for optimum measurement
    - Preset temperature range

  • Excellent temperature measurement performance:
    - Short response times as low as 1.5 s (t90)
    - High sensor accuracy even with short immersion lengths
    - Improved measuring accuracy with transmitter-sensor matching

  • Safe and reliable operation:
    - Device safety to EN 610101-1 and CSA C/US
    - Electromagnetic compatibility (NAMUR NE 21)
    - Device diagnostic information (NAMUR NE 43)
    - Hygienic design manufactured from high-grade stainless steel
    - Marine approval

Videos

  • Explained in under 2 minutes - iTHERM CompactLine TM311

  • IO-Link digital communication technology
    IO-Link communication

    IO-Link communication helps to digitalize your plant

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