Position: Index > Unclassified >

Gas and smoke detector

2017-09-04 03:48  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.


This circuit can detect smoke and a number of gases (CO, CO2, methane, coal gas and others) with a 10 ppm sensitivity. It uses a heated surface semiconductor sensor. Detection occurs when the gas concentration increase causes a decrease of the sensor element internal resistance
Gas and smoke detector

The switch in series with the SCR is used for resetting the alarm.



Reprinted Url Of This Article:
http://www.next.gr/sens-detectors/air-gas/gas-and-smoke-detector-l12747.html