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: 2 × SPST relays (closing contact)
250 VAC / 30 VDC, 5 A max
Default alarm set-points: 3 ppm / 6 ppm NO2
Enclosure: grey ABS plastic, wall mount, IP65
Dimensions: H85 × W82 × D55 mm
Operating conditions: -20...+50 °C, 15...90% RH
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