Model TF43

Insertion thermometer

With plastic moulded measuring element

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Applications

  • Refrigeration technology
  • Cooling systems
  • Air-conditioning equipment

Special features

  • Measuring ranges from -50 ... +105 °C (short time up to +120 °C)
  • Measuring element NTC, Pt100, Pt1000
  • Plastic moulded measuring element
  • Waterproof
  • Customer-specific designs

Description

Measuring element, tolerance
WIKA standardly uses the following measuring elements for the model TF43 insertion thermometer:

  • NTC, R25 = 10 kΩ ±1 %, B (25/85) = 3977
  • NTC, R25 = 10 kΩ ±1 %, B (25/85) = 3435
  • Pt100, class B per DIN EN 60751
  • Pt1000, class B per DIN EN 60751
    Others on request

Platinum elements offer the advantage of meeting international standards (IEC 751 / DIN EN 60751).
Due to material- and production-specific criteria, a standardisation of semiconductor elements, e.g. NTC's, is not possible. For this reason their interchange ability is limited.

Further advantages of platinum elements are: better long-term stability and better behaviour over temperature cycles, a wider temperature range as well as a high accuracy and linearity.

High measuring accuracy and linearity are also possible with NTC's, but only in a limited temperature range.

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