Compact Resistance Thermometer TP 50 Hengesbach

Hengesbach is a company from Deutschland. For more than 50 years Hengesbach develops, manufactures and distributes innovative measuring technology for applications in production processes where functionality, reliability and accuracy of the instruments are of highest priority even under extreme process conditions.

Hengesbach offers a comprehensive equipment portfolio for temperature measuring. Apart from mechanical thermometers, we mainly offer  industrially optimised resistance thermometers (PT100 sensors, thermo-elements, etc.) and temperature transmitters with different electronic interfaces.

Compact Resistance Thermometer TP 50
Compact Resistance Thermometer TP 50

Compact Resistance Thermometer TP 50

The resistance thermometer TP 50 Hengesbach in compact design is optimal suited to measure the temperature of fluids. It comes with various hygienic process connections. The stainless steel vibration proof design (protection class IP66 and IP67) is ideally suited for applications in critical environment and sophisticated and challenging process conditions. The fitted transmitter is programmable via the round plug M 12×1 and enables with this universal use.


  • Compact design, simple installation
  • 1x Pt100 4-wire, class A
  • Output signal 4…20mA or resistor
  • Optional with necktubing
  • Optional with tapered sensortip

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General details

Device type/measuring principle TP50/TW68… / Pt100-resistor

Measuring insert

Sensor type 1x Pt100 in accordance with EN 60751, 4-wire
Dimensions Insertion length selectable from 20….600mm
Ø=6mm standard
tapered sensor tip optional


Supply voltage 10…35V DC Load resistance (Vref-10V)/0,023A
Current requirement ≤ 3,5mA Long-term stability ≤ ± 0,1K/year
Current limitation ≤ 23mA Burden influence ≤ ± 0,02%/100Ω
Switch-on delay 2s Calibration temperature 23°C ± 5K
Response time 1s Ambient temperature -40…+85°C
Fault signal ≤ 3,6mA / ≥ 21mA, configurable Protection class IP66 und IP67
Voltage change influence ≤ ± 0,01%/V von 24V Climate class Kl. C, EN60654-1
Circuit type 2-wire CE conformity EN 61326-1
Output signal 4…20mA oder 20…4mA, 2-wire beginning of range < 50% final value

Measuring accuracy

Pt100 class in accordance with EN 60751 A (standard)
Measuring accuracy ≤ 0,3K or 0,08% of the adjusted measuring span

Conditions of use

Medium temperature -50…150°C standard, (200°C version with necktubing)
Ambient / storage conditions -40…+85°C
Protection class acc. to EN60529 IP 66/67


Electrical connection round plug-in connector M12x1, 2-polig
Process connection – A plain sensor d=6mm (TP15)
– B G½ screw-in thread (TP12)
– C G½ elastomer-free sealing cone (TP16)
– D M12x1,5 elastomer-free sealing cone (TP26)
Materials – Field housing / lid: CrNiSt 1.4301 (304)
– Sensor CrNiSt 1.4404, 1.4571 (316 L)

Accessories TP50/TW68…

Certificates Calibration certificate
Material inspection certificates as per EN 10204

Download Data Sheet: Compact Resistance Thermometer TP 50