Electrical Calibration & Repair

Onsite, Offsite or While You Wait

As one of the leading UK electrical calibration companies, AML Instruments offers a cost-effective, first-class Calibration and Repair Service. Our process has traceability to National Standards at the forefront of our calibrating service.

Contact us today to get your electrical test equipment calibrated.

Our quality systems are Certified to ISO 9001 by BSI and accredited to UKAS ISO 17025, UKAS Scope Click Here  our calibration services can be completed at your location, at our temperature controlled laboratory with a While You Wait for Service or Express Calibration Service (requires pre-booking).

For large businesses that need to minimise the downtime of their equipment, our On-Site Calibration Service is worth noting. The many benefits of limiting your electrical equipment downtime are reflected in the huge savings in operating costs.

Whether it’s a one-off calibration, service, or annual or multi year contract, our highly-skilled, Fluke-trained engineers will always deliver.

For a great price on all of your electrical calibrations, call 01522 789 375

Professional, Independent, And Traceable Calibration Service

Our electrical testing engineers pride themselves on their engineering skills in calibrating electrical test equipment. It doesn’t matter whether it’s four PAT testers, a dozen continuity testers, three multi function testers or several cable locators; they follow the same diligent and traceable calibration process.

Ensuring your business’s electrical equipment performs correctly and meets the manufacturer’s standards will always be our top priority.

Our business has consistently grown over the last ten years, built on the back of long-term relationships with small and local to large international companies.

All engineers hold IOSH H&S Passports

AML is Safe Contractor accredited

Certified to ISO 9001 by BSI and accredited to UKAS ISO 17025

Common Testing Equipment We Calibrate

With our experienced team, we are able to calibrate a full range of electrical testing devices, such as Pat testing equipment, flow meter, RH Data Loggers, Fluke 5322a to cable detectors. All equipment, providing it has passed, will be returned with a traceable calibration certificate.

Please contact us on Tel:01522 789 375 to discuss collection, optional turnaround times and return delivery.


Pat Tester

Data Logger

Signal Generator

Time Electronics

LCR Meter

Multi Function Tester


Check boxes

RCD Tester

Signal Generator


What is electrical calibration?

Electronic calibration is the process of verifying electrical test equipment’s ongoing accuracy to the manufacturer’s standards.

Electrical test equipment, performing correctly to the manufacturer’s standards is critical for compliance and traceability.

Why Do I Need My Electrical Test Equipment Calibrated?

The purpose of electronic calibrations is to ensure test equipment continues operating correctly and provides accurate results. Poorly calibrated or incorrectly maintained equipment can result in incorrect readings, wasted time and money by producing poor results that do not comply with required specifications that can potentially lead to dangerous situations. 

Manufacturers recommend calibrating at regular intervals (included with instructions) for a reason. The internal components of an electrical test instrument are delicate electronic circuits that deteriorate over time and can be knocked out of specification by many factors.

After a calibration service, your equipment such as RCD tester, Data Loggers, digital multimeters or voltage indicators, should be returned with an calibration certificate.

How Often Should We Calibrate All of Our Electrical Equipment?

Manufacturers, such as Megger,  Chauvin Arnoux, Fluke, Kewtech, Metrel and Seaward recommend a calibration frequency that is dependent on the usage of your instrument. On average, electrical test instruments should be calibrated every six months to twelve months, depending on how often it’s in use and what environmental exposure. 

However in some instances and in high risk industries (high voltage) this calibration frequency should be reduced further.

Likewise if you only use your multimeter to check a non critical voltage a few times a year you may want to increase your calibration frequency to every two or three years. 

What Are Measurement Standards?

The calibration process compares a measuring device with a measurement standard (known parameters), establishing the relationship between the values indicated by the instrument and those of the measurements standard.

When the device’s performance falls outside of the standards, the process of re-calibration can begin.

All tests need a benchmark.

Typical Industries That Require Their Measuring Instrument Tested

Here is a list of industries that often require our services. Please do not worry if your specific industry is not listed; pick up the phone and ring us or fill out our contact form.

  • Composites
  • Manufacturing
  • Electrical Engineering   
  • Building Maintenance 
  • Trades People
  • Electronic Engineering 
  • Renewables
  • Power Generation and distribution 
  • Automotive
  • Aerospace
  • Plastics
  • Paper & Board
  • Packaging
  • Chemical
  • Pharmaceutical
  • Agriculture
  • Construction

Our Company services are suitable for any business that must maintain their equipment to the highest standard. Traceable calibration certificates are also issued to all equipment that has passed.

All Types of Electrical Test Instruments

At AML Instruments, our engineers can calibrate a wide variety of electrical testers and test meters to meet manufacturer standards.

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Latest News From AML Instruments

For the latest electrical calibration news from our company, please click here.

Get in touch to book or find out more about our calibration services. Please fill in the form and a member of the team will be in touch.

Alternatively call us on the number below for professional, no obligation advice

+44 01522 401375 [email protected]
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