There is no one-size-fits-all answer for how often calibration is needed, because the instruments, environments, and applications being calibrated may often change in different conditions. Test instrument manufacturers recommend calibration intervals for typical conditions. Extreme conditions and very critical measurements may require more frequent calibration.
The following are some general calibration categories:
Perform routine calibration according to customer contract, quality standard organization, military specifications or other industry requirements. Before testing, it is necessary to check applicable requirements to ensure that the calibration or certification requirements of the test equipment are met.
Before and after the main project measurement.
For example, when the trial production of a new product is completed, the design engineer will characterize the product to ensure that it meets specifications and optimize the testing process.
The final test adjustments made here can greatly reduce test time and affect profitability. A complete and reliable test requires that the state of the instrument be verified before and after the test period.
When you suspect a measurement error or the instrument is overloaded or dropped. It is important to check calibration and safety fidelity (for example, the measurement may drop because a wire in the test device is shorted).
Accurate calibration is not an unnecessary luxury, it can ensure the reliability of your test equipment and even the safety of personnel. For example, before operating a piece of equipment, it may be necessary to measure the meter’s voltage to be safe. If the meter is damaged or the information it displays is incorrect, it may cause injury or death. In addition, calibration can ensure quality. It guarantees accurate test results necessary to verify that products in final test and shipped to customers indeed meet specification.
To learn more about calibration, please check out some of our other posts on calibration below: