Analysis of the three main points of the detection principle and maintenance of combustible gas detectors
The sensor of the device forms a detection bridge using a detection element, a fixed resistor, and a zero adjustment potentiometer. This is how the detection portion of flammable gas detectors works. Platinum wire is used as the carrier catalytic element in the bridge circuit. After electrification, the platinum wire's temperature rises to its operating temperature, and air is drawn to the element's surface either naturally or by a suction pump.
The output of the bridge is zero when there is no flammable gas in the atmosphere. Due to catalytic action, flameless combustion happens when combustible gas is present in the air and diffuses to the detection element. This causes the detection element's temperature to rise and the platinum wire's resistance to rise. The signal is amplified, converted from analog to digital, and the value of the combustible gas concentration is displayed through the display panel because the bridge is out of balance and a voltage signal is output, whose magnitude is proportional to the concentration of combustible gas.
There are three key points in the maintenance of combustible gas detectors:
1. Understand how long the detector takes to charge
Even if you use a more professional detector available on the market, you should avoid using it frequently for lengthy periods of time because doing so will shorten the detector's lifespan. Additionally, it needs to be turned off when charging to prevent the charger from damaging the detector's sensor and causing future false alarms and gas detection problems.
Keep the detector moist.
All items, including those with higher protection levels, should typically avoid contact with water sources, and keeping them dry is an important step to increase their service life. In order to prevent damage to the detector's circuit and a reduction in the alarm's accuracy, the user must ensure that no moisture or water vapor enters the interior of the device during wiping.
3. Prevent hitting or dropping the detector.
When testing in a unique location, it must be stored safely after the user has stopped using it. A reasonable location should also be chosen, and testing will then proceed as usual. This may successfully stop frequent impacts or drops, ensuring that the detector's measurement accuracy won't be impacted by outside influences.
