How to prevent gas detection alarms from entering the water during the flood season?

During the flood season, continuous or heavy rainfall increases the likelihood of flooding disasters, which can have varying degrees of impact on the normal operation of gas detection equipment. Especially in cases of excessive rainfall, backflow, or non-standard installation, gas detectors installed outdoors or inside pipe galleries are prone to water ingress, immersion, and other phenomena, which affect their normal detection work.

Gas detection alarm is a precision instrument that detects the leakage concentration of combustible or toxic and harmful gases. It can work continuously for 24 hours. Once the leakage concentration reaches the preset value, the alarm will immediately emit an audible and visual alarm signal to remind people to take emergency measures. Therefore, consumers should be cautious during installation and use to prevent instrument damage.

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So, what impact will heavy rainfall have on gas detectors?

01 Corrosion and damage to internal components of the instrument

During normal detection work, gas detectors should try to avoid being affected by moisture. Long term rainy weather can easily damp instruments and potentially lead to equipment corrosion. If the instrument glass cover is not fastened in place after opening, or if rainwater splashes into the instrument panel or inside the instrument, it will affect the normal operation of the gas detector. If the instrument is soaked for a long time, it can cause mold on the internal circuit board, scrapping of the internal chip of the sensor, damage to the pressure diaphragm, corrosion damage to the signal board, etc., and cannot be used normally.

02 Instrument casing corrosion

Due to long-term rainwater erosion, the shell of the gas detector is prone to corrosion, leading to wear and thinning, cracking, affecting its accuracy and sensitivity, and causing damage.

03 Detection reaction delay

In long-term humid environments, damp gas detectors can become "sluggish", affecting their detection speed, accuracy, and stability. Even if it can be tested normally, its service life will be correspondingly shortened.

04 Instrument water inlet short circuit

If the instrument is exposed to long-term rain or the glass cover of the instrument is not fastened in place after opening, rainwater will flow into the instrument. If the instrument is not powered off, it can also cause a short circuit on the instrument circuit board, affecting its normal operation.

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How to prevent water from entering the gas detector?

1. Install the rain cover

If the installation site environment often experiences water splashing and other phenomena, it is necessary to install a rain cover for the gas detector to protect it from water intrusion, effectively avoid water damage, and extend its service life.

2. Reinforced glass cover

The glass cover is not tightened in place. When there is no liquid infiltration inside, tighten it. But if there is already liquid infiltration inside the glass cover, it is necessary to stop the gas detector from working and quickly dry it. If the calibration data is abnormal after being powered on again, it should be repaired as soon as possible.

3. Timely maintenance and repair

Although the current protection level of instruments generally reaches IP66 or higher, water ingress and immersion of instruments often occur due to special weather conditions and human operation errors. Consumers should do a good job in the maintenance and upkeep of gas detectors. During use, they should conduct timely inspections and do not operate on their own if any abnormalities are found. They should contact professionals or return to the factory for repair in a timely manner.