We are in the process of using the composite gas detector, because of improper operation or other reasons sometimes lead to some minor faults, such as composite gas detector when good and bad, poor contact, internal components are damaged... and so on. Although these glitches have little impact, they still cause some inconvenience to our work. Then do you know what methods can be used for self-detection when compound gas detector fails? The following is an introduction by Yi Yuntian:

When the composite gas detector fails, self-detection can be carried out by the following methods:

1. Knock method

2, cooling method

sometimes the compound gas detector works longer time, or because the ambient temperature is high, there will be a failure, but it is good to put it for a while and then use it again. This phenomenon is due to the poor performance of individual IC or components, high temperature characteristic parameters can not meet the requirements of the index. The cooling method can be used to solve the problem. Use cotton fiber to wipe anhydrous alcohol in the parts that may fail to cool down and observe whether the failure is eliminated.

3. Visual observation

as you can see, if the internal components of the composite gas detector are damaged, there will generally be discoloration, blistering or spots, and there may be a special smell, and the short-circuited chip will be hot.

4. Isolation and Exclusion

<, unplug some plug-in boards and devices in the plug-in machine to judge the fault, gradually narrow the search scope, and cooperate with signal comparison, component exchange and other methods, the fault of the composite gas detector will generally be found quickly.

5. Contrast substitution method

instruments of the same model or sufficient spare parts, replace the parts that may have problems inside the composite gas detector with good spare parts one by one to see if the fault is eliminated.

To sum up, we can see that when some minor faults occur in the composite gas detector, we can carry out self-detection by knocking method, cooling method, naked eye observation method, isolation and exclusion method, contrast and replacement method and other methods to help us deal with these minor faults quickly, therefore, it can be better ensured that the composite gas detector can maintain normal and effective operation.