Carbon dioxide detector absorption principle of the light source to detect carbon dioxide in the environment.The working principle of infrared detector is by the principle of infrared light absorption of flammable hydrocarbon gas field environment.No sight of infrared sensor using a built-in stainless steel flat miniature plug type optical detector.Tested gas diffusion and through to the sintered stainless steel flame arrester into optical chamber.Chamber supplied with a lamp in the loop of the infrared light source, light source is reflected in the air chamber and terminate on the two thermoelectric sensors.One is "active sensors", the other is a "reference".Each thermoelectric sensors respectively output a level, through the two sensors on the carbon dioxide concentration in the ratio of the output level can be computed.
Carbon dioxide detector installation considerations:
1. Carbon dioxide detector do not install smoke concentration where is too high around jet pesticides (evaporation), flammable solvents (coating), otherwise is likely to cause alarm.
2. Do not install in carbon dioxide detector vent, exhaust fan, air volume flow big place such as door, it is likely to cause carbon dioxide detector precision is affected.
3. Do not install in moisture, carbon dioxide detector is more than water droplets (relative humidity at 90%), or if the water is too high for a long time, carbon dioxide sensor will be damaged.
4. Do not install in carbon dioxide detector temperature below 30 ℃ and 50 ℃ over the place.
5. Carbon dioxide detector in strong electromagnetic not by the place.
6. Carbon dioxide concentration after the alarm signal detector, the output control signal (AC 220 v) is locked, even if no longer continue to overrun, gas concentration control equipment can automatically recover before the alarm status, must recover the artificial (press reset key or self-inspection for 3 seconds).
7. After carbon dioxide detector alarm, please do not open the electric switch;
Confirm the cause of the high co2 concentration, and make timely treatment: reason unknown please contact the relevant gas department to do a thorough examination.