Say about the gas detector cognition and use of misunderstandings, see if you make mistakes
Misconceptions about maintenance
After several unremitting requests for reports, the funding for equipment maintenance was implemented, and after contacting the supplier, the single gas detector was replaced with a probe and re-calibrated according to the demand, so the gas detection range was extended to include chlorine, carbon monoxide, benzene, hydrogen sulphide, combustible gases, and so on.
With the high priority given by the superiors, the annual re-calibration and regular replacement of probes formed a system that has been continued.
The handheld gas detectors currently in use are not maintenance free and should be switched on at least once a week for a few minutes to warm up, check the battery level and recharge.
After a year, even if they are not being used in a gas environment, they should be professionally calibrated and the sensors checked and maintained.
Used gas detectors should be checked and maintained in a timely manner.
Misunderstanding of quantitative not qualitative
On a certain day, the public alarm that there is an unknown chemical substance, emitting a stimulating odour, and asked to go to the disposal.
Arrived at the scene, a group of leaders converge, let take the gas detector to identify what substances.
It's not a joke, it's not fictional, and internally there's not much to understand. Externally, even if it does not work, you have to take the first level of protection "gorgeous debut", there is an explanation.
Gas detector can only quantitatively not qualitative. Simply put, only in the known gas environment to detect its concentration, but not in the unknown environment to detect what gas it is.
For example, carry a combustible gas detector to the unknown leakage environment, you can only determine that there are flammable and explosive gases, and can not determine the specific liquefied petroleum gas or gas or acetylene.
Of course, there are signs on the scene, by naked eye identification or a knowledgeable person dramatised except.
Mislocated Misconceptions
For example: a room with liquefied petroleum gas cylinder valve damage, a small amount of gas leakage.
The team entered with a combustible detector in hand, no movement around the detection, the detector will be close to the mouth of the bottle, until the alarm sounded.
