RY-CNH3 RS485 4-20mA 0-5V 0-10V Greenhouse Ammonia Gas Sensor NH3 Detector

The NH3 sensor according to the principle of electrochemistry, uses the electrochemical oxidation process of the gas to be measured on the working electrode in the electrolytic cell. The working electrode and the reference electrode of the electrolytic cell are kept at a proper potential by the electronic circuit. The electrochemical oxidation of the gas under test can occur, because the Faraday current generated by the oxygen during the oxidation and reduction reactions is small and can be ignored, so the current generated by the electrochemical reaction of the gas under test is proportional to its concentration and follows Faraday's law . In this way, the concentration of the gas to be measured can be determined by measuring the magnitude of the current.

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TECHNICAL SPECIFICATION

●Product Type: Electrochemical Gas Sensor

●Detection range: 0—100ppm

●Measurement limit :200ppm

●Life expectancy> 12 months

●Sensitivity: 0.10 ± 0.03uApm

●Resolution: 0.5ppm

●Temperature range: ﹣20 ℃ ～ + 50 ℃

●Pressure range: Standard atmospheric pressure ± 10 ﹪

●Response time:(T90) ≤150S

●Humidity range :15 ﹪ —90 ﹪ RH non-condensing

●Zero drift :(﹣20 ℃ ～ + 40 ℃) -3 ～ 10ppm

The ammonia concentration in the livestock industry has various negative effects on the animals and our environment. In a high ammonia concentrated-environment the livestock has a higher risk of contracting a disease. The air surrounding the farm, both inside and outside, is polluted and has a pungent smell. NH3 Probe big advantage, while continuously working with a high ammonia concentration, is its long lifetime. A pump easily transports the gas to the sensor without the need to calibrate.

Principle coulometric solid polymer electrochemical detection technology Detection of gas Ammonia Detection Range 0-500ppm Resolution 0.1ppm Lowest detection limit 1ppm Repeatability ≤2% Response time dependent on the selected measuring period, between 1 to 10min

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RY-CNH3 RS485 4-20mA 0-5V 0-10V Greenhouse Ammonia Gas Sensor NH3 Detector