Drager Polytron FX

Code: Polytron FX
  • Obsolete
  • Former flammable gas detector
  • Replacements available

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The Drager Polytron FX is now obsolete. The equivalents are Polytron 5200 catalytic or Polytron 5310 infrared.

Polytron FX was a permanent gas detector for combustible gas in the ambient. Range 0 to 100 %LEL. A low-concentration LC flammable sensor was available as an option (0-10% LEL).

A choice of catalytic bead sensor or an Infrared sensor could be chosen. The catalytic bead sensor had fast response times and was designed to be poison resistant. The IR sensor was recommended for total poison immunity, designed for ambient conditions where poisonous gases are prevalent.

Configuration and calibration were done by a magnet wand removing the need to open the detector. This means a zoned area did not require declassification during installation or maintenance.

  • Normal operating output  4 to 20 mA, fault indication under 2 mA.
  • Electrical Supply 16 to 30 V DC, 3-wire.
  • Transmitter housing:  Powder-coated aluminium.

Ordering Information

4543445 Polytron FX with catalytic bead sensor, 0 to 100 %LEL; UL version
4543450 Polytron FX with catalytic bead sensor, 0 to 100 %LEL; ATEX, CSA
4543457 Polytron FX with catalytic bead sensor, 0 to 10 %LEL; ATEX version
4543465 Polytron FX with IR sensor, 0 to 100 %LEL; UL version
4543464 Polytron FX with IR sensor, 0 to 100 %LEL; ATEX version
4543428 Magnetic wand for menu access

Replacement sensors

6809755 PR, Poison Resistant, UL Version (0 – 100% LEL)
6809790 PR, Poison Resistant, CSA/ATEX Version (0 – 100% LEL)
6810675 LC, ATEX Version (0 – 10% LEL)
6811111 IR, UL, CSA/ATEX Version (0 – 100% LEL)


4594620 Calibration Kit
Contains a pressure regulator, calibration adapter, 100% nitrogen (N2) zero gas, tubing, and carrying case
Please note: calibration span gas is not included in the calibration kit. Calibration adapter for DraegerSensor IR included w/sensor.

4543449 Operating Manual, Polytron FX
9023843 Operating Manual, IR sensor


4543452 PCB/Bezel Assembly, Polytron FX and Polytron FX IR
4543462 PCB/Bezel Assembly, Polytron FX LC
6810796 Filter/Splash Guard for Sensor IR

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Title Size
Polytron FX 194 KB
polytronfx-manual 658 KB

Additional information

Weight 0.09 kg