Since the gas detector sensor is in normal use, its sensitivity will naturally decrease by 10% to 30% per year. If the sensitivity of the gas detector sensor decreases, the leaked gas concentration will reach the lower explosion limit and fail to alarm in time, which will cause explosion. Danger. Therefore, the gas detector needs to be verified regularly every year to ensure the accuracy and reliability of its performance and value. So how long does the gas detector need to be calibrated? The following staff will explain to you.

gas detector how often does it need to be calibrated? look at the following points:

1. the normal calibration time of the gas detector is no more than one year, and the period from the product leaving the factory to the regular maintenance is one year. The correction is mainly based on the aging of the gas monitoring probe. The correction is to avoid the decrease of the sensitivity of the monitoring probe. If the gas detector fails to monitor the gas concentration in time when the gas concentration increases, the sensitivity of the gas detector decreases or there is a problem with the calibration of the instrument.

2. according to the place where the gas detector is used, the frequency of use and the degree of influence on the production process, the verification cycle can be 3 months, 6 months and 12 months.

3. The new sensor should be exposed to various environments, even if it is not suitable for the environment. After using it for up to ten days, it should be used in the atmospheric environment.

4. When the gas detector has operational changes and environmental changes, it should be rechecked.

strictly speaking, frequent calibration is required. in some places, safety supervision bureaus have strict requirements on the use of gas detectors. some require calibration once a month, some 3 months, and some one year. Most places do not have strict requirements on the calibration of the detector. When you use it, you can pay a little attention to it. You often carry out simple tests on the instrument. If you find that the instrument is obviously insensitive, you can send it back to the seller for professional technical judgment and maintenance. The use of good instruments, in the use of more than 3 years, it is best to send back to the seller for identification, to see if the instrument can still achieve the initial detection effect, by professional technical guidance, use advice and maintenance.