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Gas Sampling Probe for pre-filter backflush

  • Representative continuous gas sampling in processes containing high dust and humidity
  • Extractive gas analysis
  • Emission (CEMS) and process monitoring
  • Removal of dust from the sample gas

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  • Cost-optimized solutions
  • No condensation or chemical reactions of sample gas
  • Convenient filter replacement
  • Low maintenance
  • Safe unattended operation
  • Easy start-up
  • Even for high dust concentrations
  • Reliable protection of the analyzer system
  • Long filter lifetime



  • Modular design for custom-tailored applications
  • Highly efficient filter cleaning
  • Homogeneous heating without cold spots
  • Large active filter surface
  • Filtration from outside to inside
  • Filter element change without tools
  • Different material of filter elements
  • Electronic temperature controller including over temperature protection
  • Temperature status contact
  • Weather protection housing
  • Various options and upgrades
  • Wide range of accessories
  • Integrated back flush / back purge controller (option)


  • Representative continuous gas sampling in processes containing high dust and humidity
  • Extractive gas analysis
  • Emission (CEMS) and process monitoring
  • Removal of dust from the sample gas



Descriptionstationary gas sampling probe for pre-filter back flush


Temperature180 °C (ex works), adjustable 5 °C to 200 °C
Status limiter set values−30 K /+20 K fixed to set point
Operating pressuremax. 2 bara (max. 7 bara optional)
Mounting position5° to 15° incline (recommended), torsion angle max. 15°
Heating-up time< 1 h
Ambient temperaturefor start-up −20 °C to 60 °C for continuous operation −30 °C to 60 °C


Dimensions over all (W x H x D)375 x 418 x 449 mm
Dimensions connection box (W x H x D)120 x 160 x 90 mm
Filter element2 µm ceramic or 0,2 µm ceramic surface coated
Active filter surface170 cm2
Mounting flangeDN 65, PN6; form A according to EN 1092-1; SS316L or 2“ ANSI 150 lbs; according to ASME B16.5
Sample gas inletG 3/4“ female thread
Sample gas outlet1/8“ NPT female thread
Calibration gas connection ( feature C)pipe 6 mm, SS316
Back purge connection ( feature K)pipe 6 mm, SS316
Connection pre-filter back flush (feature J)NPT 3/8“ female thread
Gas wetted materialsSS316L, ceramic, Viton®
Protection classconnection box IP65, probe IP43
Weightapprox. 15 kg, depending on options
Weather protection housingSS304, thermal insulated, colour stainless steel natural
Approvals / SignsCE


Power supply230 VAC 50 Hz or 115 VAC 60 Hz
Power consumptionapprox. 805 VA
Temperature controller / Sensorelectronic / PT100 (IEC-751)
Electrical connectionspring type terminals, clamping range 0,08 to 2,5 mm2
Switching capacity status contact (volt free)230 VAC / 2 A, min. 5 VDC / 5 mA


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