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TG 55
-50 to 350 °C (400 °C short-term)

Description and application

TG 55
-50 to 350 °C (400 °C short-term)

These resistance temperature sensors with a bayonet head TG 55 are designed to measure temperature of solid substances, however, they may be used also to measure temperature of liquid and gaseous substances.

To fasten the temperature sensor into a point to be measured, the bayonet head that is screwed onto a spring is used. Combination of the bayonet nut, the spring and the corresponding bayonet adapter can provide higher pressure of the temperature sensor with the bayonet into the measured point or can adjust any changes in the distance between the nut and the measured point during the measurement. Maximum temperature range of sensor use is -50 °C to 350 °C (400 °C for a short period). The range for each design variant is reduced with a type of the temperature sensing element and the supply cable. The temperature sensors meet ingress protection from IP 50 to IP 67 according to the CSN EN 60 529 standard, depending on the supply cable variant.

The temperature sensors with a bayonet mount are intended for operation in chemically non-aggressive environment.


  • bayonet adapter
  • connectors


  • EC Declaration of Conformity – in accordance with Act 22/1997 Coll. on technical requirements on products as amended.
  • Calibration – The final metrological inspection – comparison with standards or working instruments – is carried out for all the products. Continuity of the standards and working measuring instruments is ensured within the meaning of the Section 5 of Act no.505/1990 on metrology. The manufacturer offers a possibility to supply the sensors calibrated in SENSIT s.r.o.’s laboratory (according to requirements of the EN ISO/IEC 17025 standard) or in an Accredited laboratory.  


  • Specifications
  • Modification
  • Wiring diagram
  • Dimensional draft
Sensor type TG 55
Sensing element All types
Case length L 60 až 200 mm
Case diameter 6 mm
Case end straight, semisphere R6 or apex 120 °C
Case material stainless steel DIN 1.4301
Materiál pravoúhlé části stainless steel
Supply cable variations / Temperature range
(can be limited by type of sensing element
– specified in manual)
PVC shielded -30 to 80 °C
PVC unshielded -40 to 105 °C
Silicone shielded -50 to 200 °C
Teflon shielded -50 to 250 °C
With fibreglass 0 to 400 °C (with metal braiding)
Ingress protection from IP 50 to IP 67 according type of cable
Material / Dimension of bayonet head Nickel-plated brass /L = 16 mm, inner Ø 12.8 mm
Material / Dimension of spring stainless steelDIN 1.4301
/L = 200 mm, outer Ø 8 mm, Ø of wire 1 mm
Insulation resistance (between case and sensor) >200 MΩ at 500 VDC, 25° ± 3°C
Maximum permissible static pull on the supply cable 1 kg

Note: Manufacturer reserves the right to make changes in design and technical characteristics of the products. For actual information, please always contact your dealer.

- variable stem design – length L, diameter, case material, design of case end

- possibility of encasing two sensors

- A class precision (with the exception Ni 10000/5000, Ni 10000/6180, T1 = Ni 2226, NTC 20 kΩ)

- possibility of encasing non-standard temperature sensors (DALLAS, TSiC, KTY, SMT, etc.)

- possibility of dimension and material of the case

- variable spring length

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