Things to Look for When Choosing a Gas Detector
Gas Detector | 23 Apr 2025 | GK401 & R2
How to Choose a Good Gas Detector
A gas detector is a device that serves to detect the occurrence of gas leaks. Gas detectors are part of the security system and prevent damage that may arise later. The gas alarm will activate the alarm if there is a gas leak (LPG and or other gas) in a room. Usually, a gas detector is installed in the kitchen area because this area is the area most vulnerable to gas leaks. Installing a gas detector will provide a sense of security for property owners.
There are two types of gas detectors for combustible gases. The first type is the type of electrocatalytic (catalytic beads), commonly called a type of passive gas detector. The second type is an infrared type gas detector, which uses infrared for detection. The type with infrared is the active type. This type of electrocatalytic is generally used in various industries which are designated as detectors at one point where there is flammable gas. Two factors affect the sensitivity of a catalytic gas type detector, the first thing is the blockage of a flame arrestor with flammable gas that flows and destroys active droplets. Second, mechanical failure can be caused by vibration. Vibration can break the platinum wire. The benefits of electrocatalytic sensors are relatively low in cost per unit, simpler and better accuracy compared to other detection methods. While the type of infrared detector is detecting the presence of flammable gases based on the absorption of infrared radiation at certain wavelengths. The main benefits of the infrared type are that it is maintenance-free because it is calibrated by the factory, can be used for single-point and open line devices, can be placed in an inaccessible location in the work area, safe so that it is not poisoned by chemicals, does not require oxygen to measure gas concentrations easily burning, internal compensation almost reduces the degree of deviation and is suitable for a continuous gas environment.
Here are some tips that can be done before choosing a gas detector:
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- Define clearly your needs and special requirements, features, and specifications needed for the gas detector to function as needed.
- Choose several types of gas detectors. Some gas detectors can also detect other gases, not only flammable gases, such as sulfur dioxide, carbon monoxide, ammonia and so on.
- Check the period required for the gas detector to detect flammable gases, such as checking the percentage of Lower Explosive Limit (LEL). The detector must at least be able to detect 10% ~ 15% of low LEL. Pay more attention to this specification, because this specification will determine how long the opportunity for you to take action when a gas leak is detected before damage occurs.
- Get information about the battery and sensor life. This is very important when you have to replace it.
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It’s vital to follow the guidelines and educate the elders and kids about the handling of LPG cylinder, preventive measures and do’s and don’ts in case of an emergency. However, there’s no need to be fearful of LPG cylinders as they are of high tenacity. It is by proper maintenance of gas appliances that LPG explosions can be averted.
