How often are gas detectors calibrated?
Gas detector is the detection of gas concentrations in the air environment instruments, its service life and the user's operation, detection of environmental temperature and humidity, toxic gas corrosion and other factors related to the detector and the detector is not calibrated for long periods of time will lead to the measurement of data is not accurate, and accordingly will affect the measurement of the regional environment within the safety of persons and property. So how often the gas detector calibration?
1, gas detector normal calibration time for no more than one year, from the factory to the regular maintenance cycle for one year. Mainly based on which the gas monitoring probe using the time limit shall prevail, the calibration is to avoid the decline in the sensitivity of the monitoring probe, if the gas concentration rises when the gas detector fails to immediately monitor the gas concentration conditions, the gas detector sensitivity is reduced or the instrument calibration in doubt.
2, according to the gas detector is used in the location, the frequency of use and the degree of impact on the production process to develop the verification cycle, the verification cycle can be 3 months, 6 months, 12 months.
3, the new sensor to touch more of a variety of environments, even if the environment is not adapted to the environment is also possible, the adoption of up to ten days after the atmospheric environment to carry out the daily sensor test.
4, when the gas detector operation changes and environmental changes, should be tested again.
5, catalytic combustion combustible gas detector exposure with hydrogen sulfide, silica and other toxic gases such as the use of the environment needs to be recalibrated.
6, the use of electrochemical sensor gas detector, such as carbon monoxide detector, exposure to solvent vapors and high interference in the gas needs to be recalibrated.
7, the instrument after a strong impact or fall, may cause damage to the instrument or error, the need to calibrate the instrument.
In summary, is the gas detector how often the calibration of the relevant content. Zeroing the gas detector at any time, regular calibration of the gas detector are essential to ensure accurate measurements. It should be noted that although many gas detectors can be replaced, this does not mean that a detector can be used with a different detector probe at any time. Whenever a probe is changed, the gas detector must be recalibrated in addition to the sensor activation time. In addition, it is recommended that before all types of instruments are used, a response test of the instrument with the standard gas is performed to ensure that the gas detector really plays a protective role.
