30 Mar Why Are Gas Detectors Important?
For any Gas Professionals, it is essential to ensure technical personals have Portable Gas Detectors with them. On the other hand, in an environment which utilizes gas such as Liquified Petroleum Gas (LPG) or Natural Gas (NG) in cooking, manufacturing and heating, it is important gas detectors are installed to detect gas potential leakages.
Here, we explain why it is important and the functions of Gas Detectors:
Gas Detectors are often available in two forms:
a) Portable Gas Detectors
b) Fixed Gas Detectors
Portable Gas Detectors
Portable gas detectors are detectors which are carried along with technical personals to ensure the environment in which the technician is working are in safe condition. At any moment a gas leak is detected, the detector will buzz and alarm; signalling and alarming the technical personal.
Portable gas detectors can also be used to detect leakages in gas pipes by running the flexible sensor along the gas pipes. Whenever there is a leakage in the gas pipe, it will alarm and indicate the location of the leakage is occurring. This is a far better method than using naked flame or soapy water to check for gas leak.
Fixed Gas Detectors
Fixed gas detectors are detectors which are fixed onto the premise to constantly detect any leakages such as commercial kitchen, gas riser room, manifold tank farm, and burner room. Enclosed environment which uses gas pipeline are constantly in risk of leakages and may cause explosion once the leakage is too high.
Fixed gas detector has location for installation which must be followed according to the specific gravity of the combustible gas. For instance, NG is lighter than air and must be fixed above the room (about 30cm below the ceiling). LPG, on the other hand, is heavier than air and must be fixed below the room (about 30cm above the floor). The location of detector is imperative as it will only detect gas gathered at the right level of the room.
Another key factor to keep in mind is that the gas detectors come is different Lower Explosion Limit (LEL%), and for Comet Integrated’s gas detectors, it is mainly 20% LEL. LEL refers to the minimum amount of gas required to reach explosive range. Once the percentage hits the minimum requirement, any spark is sufficed to cause flame. This means that before it reaches 100% LEL, in this case 20% LEL, the detector will already alarm and notify the security department. This allows sufficient grace time to locate the leakage area, rectify the problem and stop the leak.
For more information about gas detectors, feel free to get in touch with us.