Calibration Checkboxes
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Megger Record Card Set with Test Labels£30.00 £25.00- Record Card Set
- Test Labels
- Suitable for Megger's MTB7671/2 Test Box
25 Reward PointsPrice Match Guarantee2002-524 -
Megger DET Calibration Checker, 25 Ohm
£93.60 £78.00- DET Calibration Checker
- 25 ohm
- Suitable for DET3T and DET4T
78 Reward PointsPrice Match Guarantee1000-435 -
Megger 1000-434 Dual Calibration Checker£93.60 £78.00- Dual Calibration Checker
- Two-clamp measurements
- Suitable for DET4T Series
78 Reward PointsPrice Match Guarantee1000-434 -
Kewtech FC2000 Calibration Checkbox£178.80 £149.00- Built inside a protective carrying case
- Multiple testing types
- Suitable for use with all testers
149 Reward PointsPrice Match GuaranteeFC2000 -
Seaward PAT Checkbox£261.60 £218.00- Verify ongoing accuracy
- Earth bond, insulation, flash test, and earth leakage
- ±1% ± 1 digit
218 Reward PointsPrice Match GuaranteeSEAPTA12 -
Free UK DeliveryMegger MTB7671 Calibration Test Box£477.60 £398.00- Essential for testing your equipment
- Provides readings conforming to British Standards
398 Reward PointsPrice Match GuaranteeMTB7671 -
Free UK DeliverySocket & See CB400 Non-Trip Installation Testing Calibration Checkbox£479.94 £399.95- Validate your instruments through regular self-calibration checks
- Compliance to - BS EN 61557
- Ensures accuracy
399 Reward PointsPrice Match GuaranteeCB400 -
Free UK DeliveryMegger CB101 5 kV Calibration Box£492.00 £410.00- Test voltages of up to 5kV
- Four resistors can be connected
- Suitable for checking HV insulation testers
410 Reward PointsPrice Match GuaranteeMEGITA15 -
Free UK DeliveryMetrel CS2099 Eurocheck Checkbox£505.34 £421.12- Test voltage up to 1000 V
- PE test terminal functional verification
- Automatic polarity verification
421 Reward PointsPrice Match GuaranteeCS2099 -
Free UK DeliverySeaward Powercheck 1557 Calibration Checkbox£630.00 £525.00- Compatible with several different tester types
- Built into its own protective carrying case
- Doesn't trip RCD
525 Reward PointsPrice Match GuaranteePOWERCHECK -
Free UK DeliveryTime Electronics 5068 Insulation Tester Calibrator£1,954.80 £1,629.00- Ultra-portable with built-in handle and durable co-polymer plastic case
- Offers low 1% margin of error on tests
- Obtain accurate measurements within a range of 100KO to 10GO
1629 Reward PointsPrice Match Guarantee5068 -
Free UK DeliveryTime Electronics 5080 PAT Tester Calibrator£3,598.80 £2,999.00- Interlock safety feature
- Rechargeable battery for convenience and safety
- Measures earth bond current and load test current
2999 Reward PointsPrice Match Guarantee5080
About Calibration Checkboxes
What is a calibrator? It checks that a test instrument is calibrated correctly - it's kind of like testing the tester!
For peace of mind, you should check the calibration of your testers between formal calibrations. Independent electrical contractor's voluntary bodies such as NICEIC and NAPIT highly recommend interim calibrations to verify the ongoing accuracy of all test instruments.
A checkbox will allow you to calibrate settings such as:
- Insulation testing
- Low resistance and continuity
- Voltage and frequency
- Line impedance
All pieces of test equipment, as standard, conform to a set of measurements put down by the manufacturer. The in-built calculation capability of that tester is designed to generate results within the parameters defined, but these results generally become less accurate over time due to the effects of drift. Drift can cause a tester to start generating erroneous readings (extremely dangerous if working with electrical installations), leading to you perhaps being convinced that an installation is safe when it isn't.
Drift can be caused by all kinds of factors. Whether it's a sudden surge in electricity passing through the tester, a bump loosening vital components, or just the effects of age, dirt, and grime, drift can be caused by a wide variety of different things. This is exactly why we carry out calibration, to ensure that test equipment is as accurate as it can be.
Take, for example, a PAT tester. These instruments are generally designed to measure whether an electrical appliance is safe or not. When shipped from a manufacturer, drift should be minimal and the results gained when carrying out testing should be accurate to the standard defined by the manufacturer. If drift is present, the tester may produce incorrect readings, leading to the PAT tester believing that the appliance is safe when it isn't. This can lead to potential electrical accidents and problems arising when the next PAT testing procedure is due.
Regular in-service calibration of test equipment is more likely to keep you within the boundaries of the compliance expected and regulated by the test inspection authorities.
It is also a requirement that test equipment is still calibrated by a qualified calibration lab once a year. The level of accuracy offered by calibration laboratories is generally much higher than using a calibration checkbox, so make sure you remember to carry out this procedure regularly.
It is also worth noting that doing calibration yourself will not generate a fully traceable certificate that may be required by companies wanting a contractor to carry out work. This means that calibration checkboxes are ideal for checking overall accuracy, but the full formal calibration procedure must always be completed regardless.
On Tester.co.uk you'll find calibration checkboxes from many major test equipment manufacturers such as Kewtech, Megger, Metrel, and Seaward. Many of the checkboxes in-store are suitable for use with PAT testers, multifunction testers (MFTs) and other electrical testers as well.
If you have absolutely any questions about our range of calibration checkboxes, please don't hesitate to get in touch. Our expert advisory team is on hand to answer all of your questions.
