The comparison of a measured value with the nominal value of a test device is called calibration.
The following conditions are important:
– the documentation of the deviation
– the calculation of the measurement uncertainty
– the creation of a certificate
The test devices must be calibrated at regular intervals in order to achieve permanently correct measured values.
This is to gain confidence in the test devices beeing used.
After calibration, each test device is clearly marked with a test badge showing the next calibration date.
In addition, the test equipment is given a unique number to identify it and establish the connection to the correct certificate.
The calibration is documented in a calibration certificate with test equipment data and the measured values.
The certificate also lists which laboratory carried out the calibration, which facilities, procedures and reference devices were used and which ambient conditions prevailed during the calibration.
The certificates, which are issued by the performing calibration laboratory, document the condition of the test equipment during calibration.
Measuring technology: During calibration the measured value is compared to the nominal value
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