Why do gas detectors use explosion-proof grades?
Whenever a customer purchases a gas detector, the manufacturer always asks what protection level of the instrument needs to be selected, is it an explosion-proof type or a normal type? What kind of working environment is it mainly used in? Many customers will ask: "What is the difference between these two instruments?" Why do gas detectors use explosion-proof grades? In fact, what kind of gas detector to choose is mainly determined by the customer's specific working conditions.
Generally speaking, an explosion-proof gas detector refers to the ability to resist the impact and heat of an explosion without damage. The ordinary type of gas detector cannot be used in dangerous explosion places because it does not use explosion-proof technology. Chemical sites such as coal mines, steel, smelting, petrochemicals, and pharmaceuticals have always been gathering points for toxic and harmful gases and flammable and explosive gases. If the gas leakage concentration reaches or exceeds the explosion limit, once an open flame or electric spark appears, an explosion accident will occur. Through the above explanation, I think everyone will understand why the gas detector should use explosion-proof level.
In short, when customers purchase gas detectors, if the detection environment is safe, it is enough to choose ordinary gas detectors. If it is used in a dangerous explosion place, choose an instrument with explosion-proof function. It should be noted that the explosion-proof type includes both intrinsically safe type and flameproof type, and customers can choose according to their own needs.
What aspects can be used to choose a gas detector?
Applicability: Real estate professionals should conduct on-site identification and evaluation of harmful gases in the limited space where the home is located to determine whether the installed toxic gas detector sensor meets the needs of use.
Easy to identify; numerical or pointer gas detector. Generally speaking, the numerical type has the advantages of easy readability and less misjudgment. Is the display area large enough with backlighting and large fonts for easy reading and comprehension. Whether the siren is loud enough to be distinguished from the background noise. Generally, the efficiency above 90dB(A) is applicable. Whether the warning flashing light can be recognized from various angles. Can the signal be displayed continuously with the change of the measured gas concentration, and the alarm will be stopped after confirmation or countermeasures are taken.
Stability; this is a factor that must be considered. The smaller the value of zero offset and full amplitude offset, the better. All gas detectors will produce more or less interference reactions except for gases other than oxygen, most often The most important thing is the electrochemical sensor for detecting hydrogen sulfide, so as daily users in home life, we must be familiar with the toxic gases that may exist in the home.
Reliability: The longer the life of the sensor, the better. Generally speaking, the average life of the combustible gas detector is 2-5 years, and the smaller the error value, the better. The accuracy and its precision will increase with the increase of the service life, and the warranty period of the product is generally 1 year.
Convenience: Now that we are all working outside, convenience is also an important factor under the premise of stability: light weight, small size, easy and comfortable to wear, and easy maintenance.
