Flange resistance thermometer - TP 17 / TP 18 Hengesbach

The flange resistance thermometer type TP17 / TP18 in its versions with or without a transmitter is a high performance, robust and universally useful device for process measuring technology, the food industry, the pharmaceutical industry, etc., made entirely of stainless steel and including the most common process connections.

The temperature sensor is a PT100 platinum resistance in accuracy class A and in accordance with EN 60751. Accuracy classes B 1/2, 1/3, 1/10 DIN or class B are optionally available. The measuring inserts are single or double PT 100s, which can be exchanged. The utilization of the measuring inserts must be adapted to the requirements with regard to temperature, length, flexibility, vibration resistance and measuring accuracy. Devices with a tapered sensor tip and particularly short half-life values are, for example, available on request for regulatory processes.

The exchangeable measuring insert ensures that any exchange of the sensors that may become necessary can take place easily and rapidly without having to take the system out of operation or drain any tanks. If the measuring points are sensitive, for example in the food or pharmaceutical industry, corresponding hygienic types and versions are available. Cleaning can be carried out with all the media / fluids (CIP, etc.) common in this industrial sector.

The design of IP 67 offers a reliable guarantee with regard to sealing and long holding times, even under extreme conditions of use. The use of analog or programmable transmitters is optional for longer transmission distances. The QUICKTEMP series is particularly recommended for measuring points that require calibration.


  • "FR" housing in IP 67
  • with single or double PT100
  • CIP-compatible installation method
  • optionally available with measuring transducer
  • flange versions:
    • milking pipe connection according to DIN 11851
    • tri-clamp according to ISO 2852


Design configuration

Typefield housing (Cr Ni ST)  
Temperature sensorPT 100 acc. to EN 60751, exchangeable measuring insert (standard),  
 insert tube 1.4571  
Measuring insert, electrical1 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 x 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 timeT05 (measured in water): 6 s (design-dependent, d = 6 mm),  
 < 4 s with tapered sensor tip, on request  
Temperature of measuring materialTmax at the sensor = -20... +200°C  
Housing materialstainless steel 1.4301 (standard field housing)  
Sensor materialstainless steel 1.4404, 316L, welded design,  
 optional: high surface quality  
Sensor diameterstandard: 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- 50 mm, 100 mm (standard)  
 - deviating lengths on request  
Type of protectionEN 60529,IP 67 with cable connection, optionally with cable output 
Permissable pressurePN = 10 bar, depending on design and temperature  
CE conformityEMV guidelines are met, CE symbol  

Process connections

 TP17/TW59...T300:according to. DIN 11851, with tapered connection and a grooved union nutDN10....DN100
 TP18/TW59...T279:according to ISO 2852, with triclamp flange ½“...2 ½ “, DN10...DN100,according to. DIN 32676
 - optional: with a rapid-response sensor tip  


Electrical connection:ceramic connection base  
 flexible connection wires  
 sheathed cable version (vibration-resistant version)  
 transmitter TE 42, programmable, 4...20 mA, 2-wire switch (standard)  
 transmitter TE 41, programmable, galvanically separated  
 transmitter TE 52, HART  
 transmitter TE 82, PA  
Calibrationfactory calibration, calibration certificate (3-point or 5-point), with DKD standard  
Certificatesmaterial certificate according to EN 10204  

Download Data Sheet:Flange resistance thermometer - TP 17 _ TP 18

Ref: Hengesbach.com