Faqs About Electrical Test Equipment Calibration Standards

Despite the fact that there is no meter movement to go out of balance with digital electrical test equipment, these instruments still require accurate calibration. After all, false measurements or inaccurate readings could compromise safety, especially when tight tolerances are involved.  Electricians therefore have a duty to ensure that their equipment is accurately recording data whilst it is in use.

Faqs About Electrical Test Equipment Calibration Standards

For this reason, electrical test equipment calibration standards have been established to check the accuracy of measuring instruments. There is great discussion both in online electrician’s forums and amongst electricians in general regarding these standards, which may vary from country to country around the world. But what else do you need to know about calibration?

To answer some common questions is Instrotech, an electrical test equipment distributorbased in the United Kingdom. They are well placed to offer such advice due to the experience within their calibration and repair service that it offers alongside its retail, electrical equipment hire and electrical testing training services.

How is calibration performed?

The instrument being calibrated will be examined against known reference standards, which have also been calibrated in a chain of measurements. These can be traced back to the International System of Units, for which electrical current comes under amperes.

What standards require electrical test equipment calibration?

If your organisation has been striving to meet the requirements of QA standard ISO9001:2008 or the newly revised version ISO 9001:2015, then demonstrable control of measurement and test equipment is required.

You must also provide assurances that electrical test equipment is being calibrated on a rational period cycle alongside maintained and regularly reviewed records.

How often should electrical test equipment be calibrated?

It is difficult to put a timeframe on electrical test equipment calibration. This is because it all depends on how important the measurements being made are, the degree of wear and tear that the instrument will experience in service, and the stability of the instrument itself. Another consideration is current calibration records, which can determine whether adjustments have been needed previously.

As a general rule of thumb, it makes sense to start calibrating electrical test equipment every 12 months. If an adjustment is required, reduce this to every 6-9 months. But if annual calibrations show that no adjustment is required, increase this to every 2 years.

How do you know if your calibration is traceable?

When choosing a company to calibrate your electrical test equipment, make sure it is accredited to the international standard ISO17025:2005.

This requires laboratories to demonstrate competence in the technical aspects of measuring, quality assurance with specific calibration requirements, as well as a guarantee that you will receive a valid certificate and set of results.

What should you receive after electrical test equipment calibration?

In order to appraise the performance of your electrical test equipment, you should be given a set of results alongside the standard certificates. These results will be in comparison to published specifications and categorised according to conformance.

For electrical test equipment calibrated under ISO17025 standards, certificates often show results in more detail with additional information on what fell outside of the specifications.

Where to get your electrical test equipment calibrated?

For a reliable service and quick turnaround, choose Instrotech for your electrical test equipment calibration. Most instruments are calibrated in-house and ready within 3-5 days.

Traceable to UKAS national standards, calibration certificates are also stored on a computer system indefinitely to quickly locate pervious results should you misplace the original document.

Collection and delivery as well as a same day premium service is also available; so get in touch with Instrotech about your electrical test equipment calibration requirements, they will be happy to help.

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