In the process of using the gas detector, sometimes it is inevitable that there will be various strange failure situations. Many situations can be solved by ourselves, but many situations do make people feel in a hurry. For example, even if there is no measured gas in the air, but the value of the gas detector changes greatly or jumps, what should we do when we encounter gas detector value jumps? The following is a brief introduction by yi yun Tian:

gas detector:

1. Confirm that the fluctuation range of the detector is normal with an error of 3%.

The range is within 10ppm, and fluctuations less than 0.05ppm are normal.

range within 100ppm, fluctuation less than 0.05ppm is good, less than 0.1ppm is normal.

range within 1000ppm, fluctuation less than 0.05ppm is good, less than 1ppm is normal.

range over 1000ppm, fluctuation less than 5ppm is normal.

2. The value fluctuates too much. Check whether the parameter settings are correct, whether the sensor contact is good

range is in the range of 0 ~ 100ppm. the gas detector sometimes displays 0ppm, sometimes 20ppm and sometimes 100ppm in clean air, which indicates that the instrument is returned to the target point in clean air.If the concentration of the target gas is not or very low, the value of the gas detector will be magnified several times after the operation of returning to the target point, so it is necessary to restore the factory settings and return to zero.

range in 0 ~ 100ppm, detector in clean air sometimes show 0ppm, sometimes show 0.2ppm, 0.5ppm, or even more. This situation may be caused by the sensor of the gas detector not being calibrated properly. You can first restore the gas detector to the factory settings and then check whether the sensor is loose.

3. If the sensor itself has performance problems, replace the sensor.

If the problem cannot be solved, it is necessary to confirm whether high-concentration gas has been introduced into the gas detector or high-concentration gas has impacted the gas sensor. If it has impacted the gas sensor, the gas detector will be turned on and aged for 24 hours, if the value is not stable, it may be that the gas sensor is damaged by impact and needs to be replaced.

To sum up, it is the possible cause and treatment method of the gas detector's numerical jump. Gas detector is used in industrial production more detection instruments, according to the test results of the use of the corresponding safety protection equipment, therefore, if we encounter gas detector numerical jump, we must pay attention to deal with, so as not to cause adverse consequences.