Differences between Verification, Calibration, Calibration and Verification of Gas Detector
The gas detector helps the factory to solve the gas safety problem in the industrial production process. But it is also a precision instrument, which needs to be correctly understood and used to play its due role. But in practice, when we use gas detectors, we will go into some misunderstandings. For example, we think that verification, calibration, calibration and verification are the same, but this is actually a wrong understanding. So what are the specific differences between verification, calibration, calibration and verification of gas detectors?
The difference between verification, calibration, calibration and calibration of gas detector;
1. Calibration
By measuring the deviation of the standard, the system error of the instrument is compensated, so as to improve the operation of the accuracy (precision) of the instrument or system. Calibration is generally used for instruments with high precision.
2. Verification
According to the national metrological verification regulations, the activity of determining whether the indication error of measuring instruments meets the requirements through experiments. The scope of verification is the compulsory verification of measuring instruments clearly stipulated in China's metrology law.
Step 3 calibrate
According to the relevant calibration standards, the activities of indicating the value of measuring instruments are determined through experiments. Usually, the error of the measured instrument relative to the standard instrument is obtained by comparing with the standard instrument with high precision, so as to obtain the corrected value of the indicated value of the measured instrument. Calibration is mainly used for non-compulsory verification of measuring instruments.
Step 4 check
When there is no relevant verification regulation or calibration specification, it is a way to implement the traceability of quantity transmission according to the method compiled by the organization itself. Mainly used for measuring instruments or measuring instruments with relatively low accuracy.
The main differences between calibration, verification, calibration and calibration of gas detector;
Calibration is a dynamic process of checking the accuracy of test equipment and eliminating errors in time during measurement.
Secondly, verification, calibration and verification are static measurement processes carried out periodically.
General use and selection methods for verification, verification and calibration:
1. It belongs to the national compulsory verification catalogue and is submitted for inspection;
2. If there are JJG or JJF outside the national compulsory verification catalogue, they can be submitted for inspection/calibration, or if the enterprise has standard equipment, instruments and calibration methods, they can be self-calibrated;
3. Without JJG and JJF, self-check.
