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Calibration: ammonia NH3
Sensor type: electrochemical
Sampling method: diffusion
Detection range: 0...100 ppm NH3
0...300 ppm NH3
0...1000 ppm NH3
up to 10000 ppm on request
Resolution: 1 ppm NH3
Repeatability: ± 10%
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: 25 ppm / 35 ppm NH3
Enclosure: die-cast aluminium, wall mount, IP65
Dimensions: H155 × W145 × D110 mm
Operating conditions: -40...+50 °C, 15...90 %RH
safe areas and ATEX Zones 2 and 22
