How to extend the life of the gas alarm sensor?

Gas alarm is used to detect the gas leakage to a certain concentration of alarm equipment, gas alarm built-in sensor is the same as our human nose, as long as the gas leak, the gas alarm built-in sensor will feel and transmitted to the controller to remind us Timely measures, but the gas alarm built-in sensor is very sensitive, poor environmental conditions can lead to a decrease in service life, so for the extending service life of the gas alarm built-in sensor we give the following suggestions:

First, the frequent use of gas sensors, pay attention to its life, do not expire. In general, in the portable sensor, LEL sensor life of about three years; electrochemical gas sensor life is generally one to two years; carbon monoxide sensor life of about a year or so. Note that if it is an electrochemical sensor, in order to prevent the inside of the electrolyte appears dry, long time without the case, it should be sealed and prevent from low temperature environment, this can effectively extend its service life.

Second, gas sensors require frequent calibration and detection. Gas sensors are usually measured using the relative comparison method. Therefore, calibration and calibration are an indispensable job in routine maintenance of the sensor.

Third, pay attention to the sensor concentration measurement range. Any measurement of excess or too low concentration will cause the sensor measurement error to increase or damage the sensor.

Fourth, the gas sensor compared with other sensors, there is a problem requiring special attention, that is, the interference between the various gases. Typically, each gas sensor corresponds to a specific detection gas, so, when selected, should understand the nature of the gas to be measured and whether it will cause interference with the sensor output.


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