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How to select installation location of fixed gas detector

At present, people use gas detectors in many industrial envorionment. Portable gas detector is carried for detection, but fixed gas detector must be installed in a suitable location, so that the gas detector can get the best measurement effect. How to select the installation location is so important. In order to sum up the reasonable suggestion, the engineer from Henan Ronghe Import & Export Co.,Ltd wrote this article, based on his rich experience.

Firstly, the installation position of fixed gas detector should be around the valve, pipe joint or other leakiness point with diameter less than 1 m. The nearer, the better, if no influence on the operation of other device. Try to avoid the high temperature or high humility environment.

Also, the installation location should be in the place where the gas may leak, flow or be stagnant. User should confirm the installation position according to the gas density, airflow direction, temperature, etc.

fixed gas detector installation

Below are some advices about how to select a proper installation height:

1) For the gas types which is heavier than air (such as LPG), the recommended installation height is about 0.3 m ~ 0.6 m above the floor and keep the horizon distance less than 5m. A too low location may cause damage to the gas detector due to rain or splashing. A too high location will exceeds the height at which gases tend to congregate.

2) For the gas types which is lighter than air (such as hydrogen, natural gas or city gas, etc), the recommended installation height is about 0.5m to 2m above the source of leakage and keep the horizon distance less than 5m. For hydrogen leak detection in the designated area, the hydrogen gas detector should be installed around the leak source and within 1m above the leak source. Due to the rapid upward diffusion of hydrogen, a far installation position or the gas detector will affect the detection effect.

3) For toxic gas which has similar molecular weight as air and easy to mix with air, such as carbon monoxide, hydrogen cyanide, the recommended installation location is less than 1m above or below the leak source. If the gas is lighter than air, the gas detector should be installed above the leak source. If the gas is heavier than air, the gas detector should be installed below the leak source. The horizontal distance from leak source shall be no more than 1m.

4) If the detection area is ventilated, the gas detector should be installed in the direction of upwind, and keep the leak resource in upper air position.

Above all, the installation location of fixed gas detector is not best when very high or very low. It depended on the gas type, weight, air flow direction and actual needs. If you have purchaced our product of fixed gas detector, before installation, please read through this artical. Hope it can help you to find the best installation location.

 


 
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