Flameproof Nitrogen Dioxide Detector

  • Suitable for ATEX Zones 2 and 22
  • Stable long-life electrochemical sensor
  • Range 0...20 or 0...200 ppm NO2
  • Resolution 0,1 ppm or 1 ppm NO2
  • Two SPST relays option
  • 2 × 4-20 mA or 0-10 V, RS485

E2670 series is a new line of flameproof detectors-transmitters intended for use in ATEX Zones 2 and 22.

E2670 series devices are based on PluraSens® multifunctional platform.

Nitrogen dioxide detector-transmitter E2670-NO2 utilises a fully calibrated and temperature compensated electrochemical gas sensor with excellent repeatability, stability and long lifetime.

Two relays with closing contact (optional) may be used for remote signalling or concentration control. Two alarm set-points are user settable.

Two analog outputs and RS485 digital interface with industry standard Modbus RTU protocol can be used to connect the detector to safety or building automation systems.

Technical data
Calibration nitrogen dioxide NO2
Sensor type electrochemical
Sampling method diffusion
Detection range 0...20 ppm NO2
0...200 ppm NO2
Resolution 0,1 ppm NO2 for 20 ppm range
1 ppm NO2 for 200 ppm range
Sensor lifetime > 2 years
Power supply 12...36 VDC (default),
24 VAC or 230 VAC as options
Digital interface RS485, Modbus RTU protocol
Analog outputs 2 × 4-20 mA / 0-10 V, user settable
Output relays (option) 2 × SPST relays (closing contact),
250 VAC / 30 VDC, 5 A max
Default alarm set-points 3 ppm / 6 ppm NO2
Enclosure die-cast aluminium, wall mount, IP65
Dimensions H155 × W145 × D110 mm
Operating conditions -20...+50 °C, 15...90 %RH
safe areas and ATEX Zones 2 and 22