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Thermo Detector TM 1/9

Temperature monitoring of facilities

Technical Specification

Technical Specification

In a brief

The TM 1/9 Ex is a thermo detector and has two different trigger functions that work in parallel. It reacts to the adjusted temperature threshold and triggers an alarm upon a rapid temperature rise which is typical of fire.


Supply voltage range: 13 V to 30 V DC
Current drawn at 20 V: min. 3 mA to max. 30 mA
Temperature switching point: classes according to DIN EN 54-5
Ambient temperature range: ex-free zone -40 °C to +85 °C, ex-zone -20 °C to +60 °C
Process temperature range: ex-free zone -40 °C to +160 °C, ex-zone -20 °C to +60 °C
Storage temperature: -40 °C to +70 °C
Storage temperature: -20 °C to +60 °C
Relative humidity: 0 to 95 %, non-condensing
Application area: dust explosive zones 20, 21, 22
Connection: pre-fitted pluggable connecting cable, number of wires/wire cross section: 3 x 0.5 mm²
Cable length: 2.5 m (VdS-compliant), 25 m (optionally)
Material of housing: Aluminium die casting (GD-AlSi12)
Degree of protection: IP 65
Connection: pre-fitted connecting cable, pluggable: cable length 2.5 m (3 x 0.5 mm²) optionally 25 m (3 x 0.5 mm²)
Housing dimensions: 84 mm x 84 mm x 31 mm
Sensor length: 60 mm
Material of sensor (material number): 1.4571 (food safe)
Housing colour: orange (RAL 2004), lacquered
Weight: approx. 320 g
Available mounting adapters: threaded mounting adapter FM 1/8 Ex, welding mounting adapter FM 1/8 Ex, room monitoring mouting adapter (VdS-compliant)
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