Correct use method of gas detector alarm

The main equipment for gas detector alarm includes gas alarm controller and gas detector. Do you know how to use them correctly?

1.It should be noted that the level of the hazardous location should be compatible with the explosion-proof mark of the instrument.

When using the detector, pay attention to the level of the hazardous location to be compatible with the explosion-proof mark of the instrument. The explosion-proof category, level, and group of the detector. Must meet the requirements of the category, level, and group of explosive gas mixtures on site. Do not use it in an environment that exceeds the explosion-proof mark, otherwise it will not be able to achieve the on-site explosion-proof effect.

2.The detector cannot be used under environmental conditions where the gas concentration is higher than the lower explosive limit.

The detector cannot be used under environmental conditions where the gas concentration is higher than the lower explosive limit. Because the detection element used in the catalytic combustion detector is a carrier catalytically active element. When detecting the concentration of combustible gas higher than the lower explosive limit, the detection element in the detector will be burned out.

3.It is necessary to adjust the working current (voltage) of the detector.

Before the instrument is put into operation, the working current (voltage) of the detector must be adjusted. The adjusted current (voltage) value should be within the range specified in the instrument manual to ensure the normal operation of the detector. After the current (voltage) is adjusted, there is generally no need to move it, except for normal maintenance.

4.The detector cannot be used in places containing sulfur, arsenic, phosphorus, and halogen compounds.

The detector cannot be used in places containing sulfur, arsenic, phosphorus, and halogen compounds. Because they can poison the detection elements in the detector. Decrease the sensitivity of the detector and shorten the service life. In severe cases, the detector will fail. It is necessary to detect combustible gases containing the above-mentioned element compounds. Anti-toxic catalytic combustion type detector or semiconductor type detector should be used. Because the catalytic combustion type detector is explosive for hydrogen. Therefore, electrochemical or semiconductor detectors should be used for hydrogen detection.

5.Be careful not to accidentally enter water or spray water vapor into the detector.

Be careful not to accidentally enter water or spray water vapor into the detector. Because the detection element in the detector will affect its performance when water enters. If water enters accidentally, the detection element in the detector should be replaced again, and the detector installed outdoors should be equipped with a rain cover.

6.The alarm value of the alarm must be set correctly.

The alarm value of the alarm must be set correctly. The instrument should be calibrated periodically, and the alarm function of the instrument should be checked regularly. For instruments with a test button, start the test button of the alarm to check whether the alarm function of the alarm is normal.