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Technical Information

What is Calibration and why is it important?

What is Calibration?

Calibration is the process of comparing the accuracy of an Instruments Readings to known Standards who’s traceability is maintained by National or International standards.

At Test4Less it also means that your equipment gets cleaned and the case & leads safety checked. You would be amazed at how many Instruments arrive at our laboratory for calibration with taped up test leads, damaged probes and cases with holes in! We aim to keep you equipment inventory in tip top condition by making sure that you get the most from your investment.

Why is it Important?

Within the Contracting Industry, Calibration is important to anyone issuing Test Certificates to clients (Including BS7671 / 17th Edition, Part P and Portable Appliance Testing results.)

Without Calibration you do not have a recognised method of ensuring that the equipment used during these tests is accurate. You may fail installations or appliances that are perfectly fine or more importantly you may issue a pass Certificate on an installation that should have failed and could possibly be dangerous. Put simply, for such a small cost, let's all ensure we do this right.

I have a Checkbox; Can I not just use this and check my own Instruments?

Checkboxes were never intended to replace an annual calibration check. They are intended to be used to confirm on-going accuracy between your annual calibration. Most checkboxes only have a very limited number of values that can be used to check against, compare this to the whole list of readings that you receive from a calibration laboratory who will be checking your equipment on calibrators which costs many thousands of pounds.

By using a lab you can be sure that every range on your equipment is comprehensively checked giving you and your customer peace of mind in the results obtained.

More and more customers are requesting calibration certificates of equipment used on their sites. Showing them a checkbox or a certificate showing half a dozen readings obtained from a checkbox is not really good enough.

The UK's leading test equipment manufacturers including Megger, Fluke & Seaward all recommend annual calibration in a calibration laboratory to ensure ongoing accuracy verification of their equipment.

What is UKAS?

The United Kingdom Accreditation Service (UKAS) is the sole UK National Accreditation body recognized by the government to assess, against internationally agreed standards, organisations that provide certification, testing, inspection & Calibration Services. Acute Sales Limited obtained UKAS recognition in 2008.

What is the difference between UKAS & Test4Less Standard Calibration?

UKAS Certificates are generally more expensive as there are specific standards that must be complied with to issue a UKAS Certificate. Any Certificates issued will bear the UKAS Logo and will be fully traceable back to National Standards; UKAS carefully monitor our laboratory to ensure end to end compliance.

Standard Test4Less Certificates are also of an extremely high calibre and also use standards traceable back to national standards.
All procedures employed and results reported are in compliance with the international standards ISO/IEC17025

Why should I use a supplier registered to UKAS?

Choosing Test4Less as your chosen supplier for your Calibration service means that you are confident of a professional quality service of the highest quality. UKAS Accreditation is an assurance to businesses that suppliers meet internationally recognised requirements for integrity and competence through regular UKAS assessments.

We have an enviable reputation gained by offering a technically excellent level of service to our clients. All Test4Less certificates are issued to the high standards required and all measurements can be traced back to national standards.

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