Endress Hauser AG

- Model TMR31 - Compact Thermometer

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Compact, fast and precise for the measurement of process temperatures in common industries. With cost efficiency, optimal use of space, reliable operation, easy installation and commissioning the TMR31 fulfills the requirements of modern process measurement technology. Vibration-proof integrated thin-film sensors guarantee highest operational safety at the fastest response times.

  • Small, compact design made entirely of stainless steel

  • Extremely short response times

  • Highly accurate even with short insertion lengths

  • 4-wire, Pt100 or PC-programmable transmitter with 4 to 20 mA output

  • Configuration and visualization with ReadWin® 2000 PC operating software, which is free of charge

  • Breakdown information in event of sensor break or sensor short-circuit, adjustable as per NAMUR NE43

  • Marine approval

The Easytemp TMR31 compact thermometers are used to measure temperatures from -50 °C to +150 °C (-58 °F to +302 °F), or up to +200 °C (+392 °F) with neck. The most common installation locations are tanks and pipes. TMR31 with process connections for general applications.

  • Measuring Principle: Resistance Temperature Detector
  • Characteristic / Application: metric style compact temperature probe fast response time threaded process connection with or without neck
  • Thermowell / protection tube: without (not intended to use with thermowell)
  • Insert / probe: pipe version, isolated wires, not flexible
  • Outer diameter protection tube:
    • 4,00 mm (0,16')
    • 6,00 mm (0,24'')
  • Max. immersion length on request: up to 600,00 mm (23,62'')
  • Material protection tube/ thermowell: 1.4404 (316L)
  • Process connection: male thread:
    • G1/4'
    • G1/2'
    • NPT1/4'
    • NPT1/2'
    • M14x1.5
    • M18x1.5
    • BSPT R1/2'
  • Tip shape: straight
  • Surface roughness Ra: 0,8 μm (32 μin.)
  • Operating temperature range: PT 100: -50 °C ...200 °C (-58 °F ...392 °F)
  • Max. process pressure (static): at 20 °C: 100 bar (1.450 psi)
  • Accuracy: class A acc. to IEC 60751
  • Response time:
    • t50 = 1 s
    • t90 = 2 s
  • Integration head transmitter: no (4…20mA Signal)
  • Certification:
    • German Lloyd (GL) - marine approval
    • UL 3111-1
    • EAC

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