When using the gas detector, it is necessary to calibrate and debug the instrument regularly. Some manufacturers do not have professional calibration and commissioning equipment, which is a little difficult. So, how to calibrate and debug the gas detector?
In fact, this is something that third-party appraisal institutions can do, such as metrology institutes, technical supervision bureaus and qualified testing companies. Customers do not have the authority to detect alarms.
So how to calibrate different gases?
(1) In principle, the standard gas that has been measured and certified to match the detected gas shall be used. Different standard gas samples selected for the same measured medium have different alarm points. Many customers will have a question, that is, why can the combustible gas alarm detect a lot of gas? In fact, it seems like this on the surface. In fact, it is not. Instead, it refers to a gas, and then sets different alarm values according to the characteristics of the detected gas.
(2) Before calibration, the surrounding environment of the probe shall be free of combustible gas. If there is combustible gas, remove the rain cover first, fill in a certain amount of clean air, and then continuously inject the sample gas to ensure the accuracy of calibration.
(3) When the measured gas is a hydrocarbon mixture, isobutane is the preferred sample gas, followed by propane.
(4) For non hydrocarbon mixtures or hydrocarbon mixtures with large difference in heat generated during combustion of gases with lower explosive limit concentration, butane, isobutane, propane and other easily available and stable single component fuels can be used as sample gas when it is necessary. At this time, the range of the alarm must be adjusted according to a certain conversion relationship of the detection signal. The calibration of combustible gas alarm and toxic gas alarm is a professional and rigorous work. If you are working as a technician, you should pay special attention to treat it with a rigorous and careful attitude, so that the occurrence of safety accidents can be greatly reduced.
Combustible gas alarm is widely used in metallurgy, petroleum, chemical industry, coal and other industries, as well as municipal gas, storage, transportation, hotels and fire departments, and gradually applied to household fire prevention. It mainly measures the concentration of combustible gas in the ambient air. When the concentration of combustible gas in the air reaches a certain amount, the alarm will automatically alarm, and then make the action response of exhaust or stop valve, so as to prevent fire and poisoning accidents.
At present, the combustible gas alarm of Henan Chicheng Electric Co., Ltd. can replace the detection sensor. In the process of use, the sensor also needs to be calibrated and debugged regularly to ensure the detection sensitivity and stability of the instrument. In addition, before the instrument is used, the manufacturer will perform response detection on the standard gas used by the instrument to ensure that the instrument really plays a protective role.
Henan Chicheng Electric Co., Ltd. focuses on the production of gas detection alarms. It has an independent R & D team. The gas detection alarms produced by it have good performance, reliable quality and complete functions. They have become the choice of many industrial and commercial places and tens of millions of families. Welcome to click and consult online customer service for free.
