How often should gas detectors be calibrated?
A gas detector is an instrument that detects gas concentration in the air environment. Its service life is related to the user's operation, detection environment temperature and humidity, toxic gas corrosion and other factors. Long-term use of the detector and detector without calibration will cause the measured data to Inaccuracy will also affect the safety of people and property in the measurement area environment. So how often should gas detectors be calibrated?
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 regular maintenance is one year. Mainly based on the timeliness of the gas monitoring probe. The calibration is to avoid the decrease in sensitivity of the monitoring probe. If the gas detector fails to detect the gas concentration immediately when the gas concentration rises, it is because the sensitivity of the gas detector is reduced or there is a problem with the instrument calibration. .
2. Develop a calibration cycle based on the location, frequency of use, and impact on the production process of the gas detector. The calibration cycle can be 3 months, 6 months, or 12 months.
3. The new sensor should be exposed to various environments, even environments that are not suitable for it. After use for up to ten days, daily sensor testing must be carried out in the atmospheric environment.
4. When there are operational changes or environmental changes in the gas detector, it should be inspected again.
5. Catalytic combustion combustible gas detectors need to be recalibrated after being exposed to toxic gas environments such as hydrogen sulfide and silicon substances.
6. Gas detectors using electrochemical sensors, such as carbon monoxide detectors, need to be recalibrated after being exposed to solvent vapor and highly interfering gases.
7. After the instrument is hit hard or dropped, it may cause damage or errors to the instrument, and the instrument needs to be calibrated.
To sum up, this is the relevant content about how often the gas detector should be calibrated. Zeroing the gas detector at any time and calibrating the gas detector regularly are essential tasks to ensure accurate measurement. It should be noted that although many current gas detectors can replace the detection sensors, this does not mean that a detector can be equipped with different detector probes at any time. Whenever a probe is replaced, in addition to the required sensor activation time, the gas detector must be recalibrated. In addition, it is recommended that before using various instruments, the standard gas used in the instrument should be tested for response to ensure that the gas detector truly plays a protective role.
