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Flammable gas detection, gas warning, gas concentration measurement

Flammable gas detector for Methane (can also be calibrated to other gases). Gas detection, gas warning, gas concentration measuring instrument for measuring ranges: - ppm, LEL and Vol.% applications; choose all or a combination of sensors.

Flammable gas detection

EX-TEC PM 4 Features

  • Modular instrument concept.
  • Basic device without pump (diffusion) or with built-in pump
  • Sensor combinations for diverse applications
  • Power supply by rechargeable or disposable batteries
  • Micro-processor controlled
  • Large illuminated LCD display
  • Self-test when switched-on
  • Easy handling
  • Visual and audible alarms
  • Adjustable alarms for each range
  • Temperature compensated sensors
  • Easy to follow operator menu
  • Function menu for instrument configuration (PIN code protected)
  • Operator selectable flammable gas menu (option): methane, propane, butane, hexane, nonane, hydrogen, jet fuel
  • Adjustable test gas concentrations



  • Passive protection:
  • EC-type-examination certificate in accordance with ATEX 100a, guideline 94/9/EG
  • Certificate No.: TÜV 01 ATEX 1657
  • Identification: EX-Symbol II 2 G EEx de ib IIB T4
  • Active protection:
  • Function safety test in mode "warning" at "Deutsche Montan Technologie GmbH"
  • Test report: PFG-Nr.:413 007 02P

Sensor operation/measuring range

Calibration on methane:
ppm-sensor, semi-conductor: 0 ... 22.000 ppm
Minimum detection sensitivity 1 ppm
%LEL sensor, catalytic combustion: 0 … 4,4 vol.%
Minimum detection sensitivity 500 ppm
Vol.% sensor, thermal conductivity: 0 … 100 vol.%
Minimum detection sensitivity 1 vol.%

EX-TEC PM 4 Accessories

  • Leather bag
  • Various probe systems
  • Test case/test sets/test gases