Hengesbach Resistance Thermometer with Screw Connection TP 26

The  TP26 temperature sensors have threaded connections and come in a stainless steel housing with or without a transmitter. These are high-performance devices used in processes that require high hygiene levels (e.g. breweries, dairies, beverage industry, pharmaceutical industry, etc.)

The PT 100 switch comes with 3 wires in its standard, Class A form according to EN 60751. Accuracy classes B 1/2,
B 1/3, B 1/10 DIN and other switch types (single or double PT 100) are available. The utilisation of the measuring inserts must be adapted to the requirements with regard to temperature, length, vibration resistance and measuring accuracy. Tapered sensor tips for particularly short response times are, for example, obtainable for regulatory processes.

The version with an exchangeable measuring insert allows the measuring point to be accessible all the time without interrupting the process or having to open the device; this offers the advantage of additional safety and saves resources. The process connection is a metal threaded connection in the form of a conical seal, with an EHEDG certificate and the corresponding welding sockets and adaptors.


  • process connection with hygiene design, ehedg
  • exchangeable measuring insert
  • single or double PT100
  • optionally with measuring transducer
  • short addressing times and tapered sensor tip
  • “FR” hosuing in IP 67
  • optional as a quicktemp version for measuring points requiring quality assurance measures

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Design configuration
Type field housing (Cr Ni ST)
Temperature sensor PT 100 acc. to EN 60751, exchangeable measuring insert (standard), Insert tube 1.4571
Measuring insert, electrical 1 x PT 100 in a 2-, 3- or 4-wire circuit, standard: 1 x 3-wire circuit, Class A,
2 x PT 100 in 2- or 3-wire circuit
Electrical connection – M16,1.5 cable connection, MS-nickel-plated,
– optional: M12 x 1 round plug, 4-pin
Accuracy – standard: Tolerance class A according to EN 60751,
optional: Tolerance categories B 1/10, 1/5, 1/3, 1/2
Response time T05 (measured in water): 6 s (design-dependent, d = 6 mm)
< 6 s with tapered sensor tip, on request)
Measuring material temperature Tmax at the sensor = -20… +200°C
Housing material stainless steel 1.4301 (standard field housing)
Sensor material stainless steel 1.4571, optional 316L = 1.4435 or 1.4404,
optional: high surface quality
Sensor diameter standard: continuously smooth, d = 6 mm,
optional: tapered sensor tip d = 4 mm (exchangeable measuring insert)
tapered sensor tip d = 3 mm or 2 mm (non-exchangeable measuring insert)
Sensor length – TP16: 50 mm, 100 mm (standard),
– TP26: 20 mm (standard),
– deviating lengths on request
Type of protection EN 60529, IP 67 with cable connection, optionally with cable output
Permissible pressure PN = 10 bar, depending on design and temperature
CE conformity EMV guidelines are met, CE symbol

Download Data Sheet: Resistance Thermometer with Screw Connection TP 26

Ref: hengesbach.com