Electric measurement
Industrial instruments and calibration operations
Scales, thermometers, refractometers, pH-meters: the calibration of the measuring instruments must be carried out on any equipment. The procedure is required by UNI EN ISO 9001 and is carried out in accordance with ISO 17025. This indication extends to all industrial branches, from pharmaceutical to food, from petrochemical to energy. For the verification and certification of the instruments it is, therefore, necessary to rely on an authorized center. Below, we will go into the merits of the regulatory discipline and procedure. For more details, please contact us.
Details about periodical calibration of measurements instruments
Industrial equipment and ISO’s standards
The instruments’ calibration and control refers to the 7.6 section of UNI EN ISO 9001 standard. The text shows that “ the organization must determine monitoring and measuring activities to do as well as the monitoring and measuring equipment necessary to provide evidence that the product complies with the requirements determined”. So it’s key that the necessary equipment for a certain company activity has been subjected to laboratory calibration. Through the calibration of a certain instrument the accuracy is checked. This is distinguished by the calibration that, instead, aims to make the instrument more accurate.
Instruments that must be calibrate
It was written, generally all measurements instruments must be subjected to the calibration operation. This category includes refractometers, polarimeters and quartz sheets, spectrophotometers, colorimeters, thermometers, manometers, precision balances, multimeters and calibrators, flow/flow meters, leak detectors, fixed and portable gas detectors, fine dust meters, moisture meters, alcohol tester, dosimeters, geiger meters, finders and metal detectors, ph-meters, level meters, turbidimeters, NIR instrumentation.
Deadline for calibration of the instruments
Although there is no universal rule that determines the frequency with which it is necessary to carry out the calibration of measuring instruments, the UNI 10127-2 standard contains some references for some types of instrument. Generally, it’s suggested not to overcome three years between one check and another. The most important factors to decide when it’s needed to calibrate an instruments are: any technical rules applicable to the instrument, the information and recommendations provided by the manufacturer, the frequency of use of the instrument, the type of instrument and its tendency to wear, the mode of use and the environmental conditions, and the desired accuracy.
For more details on the calibration of measuring instruments, do not hesitate to contact our staff,
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