With self-regulating heater, explosion-proof version according to ATEX

With self-regulating heater, explosion-proof version according to ATEX
Область применения

For gases with a dust concentration up to approx. 2 g/m³ and an operating pressure < 6 bar.


The gas sampling probe with external, electrically heated filter has a mounting flange (DN 65 PN 6, form B) with G¾ female thread. Depending on the application, the flange can accommodate a sampling pipe or a pre-filter.

The external filter is fitted in a housing with minimum dead volume.

The filter element can be replaced quickly and easily without tools and without the need to dismantle the sample line.

The gas sampling probe is equipped with a protection hood. The optimum heating of the complete filter housing, including the mounting flange, ensures safe outdoor operation without the temperature falling below the dew point.

This probe is suitable for use in Zone 1, 21 and for sampling from Zone 0, 20.
It should be noted that the permissible field of application of the probes may be limited when specially selected accessories are used.

Special features
  • Heated probe with outlet filter and weather protection hood
  • Simple removal of outlet filter by rotating the handle by 90°
  • The probe body and the area of the connection gland for the heated sample gas line are completely insulated
  • Self-regulated heating up to approx. 80 °C
  • For dust loads up to 2 g/m³
Технические данные

Max. permissible operating pressure

6 bar

Max. inlet temperature of process medium

135 °C

Max. sampling temperature

1 600 °C (selection and separate ordering of a suitable sampling pipe required)

Max. flow

1 000 l/h

Material (filter enclosure and flange)

Stainless steel, mat. no. 1.4571


Graphite / 1.4404

Filter volume

120 cm³

Sample gas outlet

1 x female thread ¼ NPT

Power supply

230 V AC; 50/60 Hz or
115 V AC; 50/60 Hz

External miniature circuit-breaker type C

  • 2 A for 230 V; 50/60 Hz
  • 3 A for 115 V; 50/60 Hz

Ambient temperature range

-20 … 50°C

Temperature self-regulating

Approx. 80 °C

Ex identification of basic devices

1GD / 2GD T4 T130 °C


Gas sampling probe with external, electrically heated filter, weatherproof cover, and self-regulating heater, explosion-proof version according to ATEX


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Festo Norgren Schneider Electric Siemens