When the combustible gas alarm has the phenomenon of unstable indication value fluctuation, its monitoring accuracy and early warning reliability will face severe challenges, which may lead to the failure to accurately and timely issue an alarm at critical moments, thus posing potential risks to the safety of personnel and property. Therefore, once the combustible gas alarm shows that the value is unstable, we must respond quickly and take effective measures to solve it. Do you know what to do if the combustible gas alarm shows unstable value? The following is a brief introduction by yiyuntian electronics:

When the combustible gas alarm shows unstable value, the following measures can be taken to solve:

1. check the calibration hood and the field environment

Ensure that the calibration cover is completely covered: if the calibration cover is not completely covered, the indication may be unstable, so check that the calibration cover is installed correctly to ensure that it completely covers the sensor.

Check the site environment: large mechanical magnetic field interference on site may also affect the sensing element, resulting in unstable indication of combustible gas alarm. At this time, check whether there are magnetic field interference sources around the combustible gas alarm, such as large motors, transformers, etc., and try to stay away from these interference sources.

2. Cleaning and Calibrating Sensors

Clean the sensor cover: residual gas or dust in the sensor protective cover may cause zero drift, thereby affecting the stability of the indication. Therefore, the sensor protective cover should be cleaned regularly to ensure that the surface of the combustible gas alarm is clean and free of dirt.

Re-calibrate the zero point: In clean air, use clean air to re-calibrate the zero point to eliminate the influence of zero point drift on the stability of the indicator value of the combustible gas alarm.

3. check the sensing elements and connections