Measuring instruments are an essential part of any industrial activity. Metrology is important to guarantee the reliability and accuracy of measurement results. Calibration is the basis for quality control, product traceability and compliance with standards.
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Metrology and calibration of your equipment are important for several reasons:
Calibration is a metrological activity which aims to establish the correspondence between a value indicated by a measuring instrument and an accepted standard reference value.
This metrological activity can be carried out in relation to a range of reference standards or directly to the standard value.
There are various types of calibration, including :
Under ISO 9001, measuring instruments must be calibrated or verified at specified intervals against measurement standards traceable to international or national measurement standards.
Measuring instruments are used in all industries.
Below is a list of the most common types of measuring instrument:
Generally speaking, most instruments need to be calibrated at least once a year, and some even once a month.
You should consult experts in instrumentation technology to determine how often you need to check your device against known standards.
Another factor that will determine the frequency of calibration of these measuring devices is the environment in which they are used.
If your systems are regularly exposed to extremely hot or cold temperatures - or even just fluctuating ones - you'll need to recalibrate them more frequently than if they're kept permanently in a controlled environment.
The purpose of a calibration certificate is to document the actual results of a calibration carried out in accordance with requirements.
The certificate serves as a reference for the quality and performance of an instrument, and is useful for maintaining traceability.
For each measuring point, it contains information on the quantity to be calibrated, its reference value and its uncertainty, measurement values and measurement uncertainties, deviations from reference values, etc.
In addition to the identification data of the instruments used to perform calibrations (name or model, serial number), this certificate must also include the ambient conditions during calibration (temperature), the date and time of calibration, and the name(s) or signature(s) / initials(s) demonstrating that the measurements have been carried out correctly.
Verification is a procedure that applies to all measuring equipment, enabling us to determine whether it complies with the datasheet technical and functional specifications defined in its identification documents (instruction manual, technical specifications, etc.).
The verification report is issued to certify that the instrument has been verified and complies with the requirements and prescriptions relating to accuracy, reproducibility and linearity of measurement given by the manufacturer.
This document is issued in the form of a report which contains the result of the data relating to the identification of the instrument, the general characteristics of the product, the result of the verification and any recommendations for the use and/or maintenance of the instrument.
The verification report is not a calibration certificate, and should not be confused with a calibration certificate.
To guarantee the validity of your measurements, it is essential to have your measuring instruments calibrated.
A professional calibration company will calibrate them on site or in a metrology laboratory, and issue you with a certificate proving that this operation has been carried out by a certified person.
This certificate must attest to the correct operation of the device, and indicate any deviation from standard values.
You need to make sure that the calibration service provider you use has a metrology laboratory and an ISO-certified quality system.
ISO-certified companies in the Industrial Metrology sector are required to follow strict guidelines when performing equipment calibration services, and must only use approved methods, means and equipment to obtain their accreditations.
The more expertise a calibration services company has, the better it can meet your needs and solve any problems that may arise during your equipment calibration operations.
We can offer you a commissioning service for your instrument, an adjustment, inspection or calibration service, a repair service if required, or a rental service for a replacement measuring instrument.
These services can be complemented by maintenance contracts for on-site management of your equipment to meet your requirements.
