INSTRUMENTS CALIBRATION

 

The awareness of measurement uncertainty

The standard ISO 10012 “Measurement management systems - Requirements for measurement processes and measuring equipment” says that “...an effective measurement management system ensures that measuring equipment and measurement processes are fit for their intended use and is important in achieving product quality objectives and managing the risk of incorrect measurement results. The objective of a measurement management system is to manage the risk that measuring equipment and measurement processes could produce incorrect results affecting the quality of an organization’s product..”
Therefore it is clear how important it is to rely on an effective and efficient "management system of measurements", which is for each organization a real "insurance" against the risk of failing to provide the customers with supplies which do not comply.
In this context, Aequalis is the right Partner for measuring instruments management; this means that our laboratory and our staff are able to provide services and technical support to manage or completely outsource the following tasks:

  • DEFINITION OF CONTROL AND INSTRUMENTS MANAGEMENT PROCEDURES

    The choice of the instrument and measurement method suitable to verify the conformity of the products must be made considering various factors. For example simplicity and speed of measurement, the cost of acquisition and management of equipment and reliability of the measures over time.

  • CALIBRATION AND METROLOGICAL CONFIRMATION

    The measuring equipment is checked with predefined frequency to verify that the metrological characteristics of accuracy, precision and uncertainty are adequate to the measures to be executed. The calibration is performed with reference to national and international recognized standards (SIT, UKAS, DKD).

  • REPEATABILITY AND REPRODUCIBILITY STUDIES

    The adequacy of the measurement processes is also evaluated considering variables such as measuring operators, environmental conditions and metrological characteristics degradation over time.

Aequalis is able to calibrate and confirm the instruments listed in the following table:

Instrument Range Uncertainty
Dimensional measuring instruments
 0 ÷ 1.200 mm Up to 1,4 µm
Pressure measuring instruments
0 ÷ 350 bar Up to 0,03 % f.s.
Temperature measuring instruments -50° ÷600°C
0,1°C from -50° to 200°C
1 °C from 200° to 400°C
2 °C from 400° to 600°C
Electrical measuring instruments 0÷750 V DC-AC
0÷3 A DC - AC
0÷100 MΩ
Up to 0,005 % f.s.
Torque measuring instruments
 0 ÷ 500 Nm Up to 1,5 Nm
Mass, forces measuring instruments 0-1.000 kg Up to 0,5 mg
Liquid flow measuring instruments 0-300 l/min Up to 0,1 % v.m.
Gas flow measuring instruments
 0-30 m/s 0,15 m/s