Possible failures and causes of combustible gas detectors
Gas detection is widely used by many enterprises and households. Gas detectors can be easily purchased in the market, but it is inevitable to encounter some malfunctions during use. Many times, we only encounter minor faults that we can fix ourselves, but because we don't understand some common sense, we can only hire professional personnel to help repair them. Below, we will introduce the common faults and maintenance of combustible gas detectors.
The possible faults and causes of combustible gas detectors are analyzed as follows:
1. There is no display when turned on. Membrane switch malfunction; Battery lead breakage: The battery voltage is severely insufficient.
2. When turned on, there is only a negative sign, and pressing the "voltage" button does not count. Voltage regulator power supply failure or short circuit on its output side.
3. The startup only has a decimal point. The sensing element has a damaged loop; Or a component in the bridge circuit may experience desoldering.
4. No alarm for exceeding the limit. Ring damage of the alarm: The alarm circuit is disconnected.
5. The accuracy cannot be adjusted to the standard gas sample. Serious dust accumulation in the explosion-proof cover; Sensor aging.
Repair requirements for combustible gas detectors:
1. It is prohibited to dismantle this instrument at will, and maintenance work should be carried out by trained professionals.
2. When a malfunction occurs during use, it is not allowed to dismantle and repair the machine underground.
3. Sensors and battery packs are special explosion-proof components that must be replaced as a whole after damage. Our factory provides spare parts and cannot substitute with other types of components.
The above are the common faults and maintenance methods of combustible gas detectors. After mastering these maintenance and analysis methods, everyone can try to repair the combustible gas detector by themselves, without the need to trouble professionals or companies for repairs.
