Proving Unit Calibration
- Verifies that your proving unit generates the correct reference voltage for checking voltage indicators safely
- Output voltages are verified against traceable reference standards to confirm correct operation
- Supports reliable proving of voltage testers before and after use to help maintain electrical safety and compliance
Proving Unit Calibration
Electrical Proving Unit Calibration confirms that your proving unit produces the correct reference voltage for verifying the operation of voltage indicators and test lamps. Accurate proving equipment enables electricians to confirm that voltage testers are functioning correctly before and after testing live electrical circuits. Our technicians carry out calibration using controlled electrical sources and traceable reference standards to ensure your proving unit delivers accurate and repeatable voltage outputs.
Throughout the calibration process, the unit is tested against known reference voltage values across its operating range. These checks verify that the equipment produces the expected output and activates correctly when used to confirm the performance of voltage detection devices. This provides confidence that your proving unit can be relied upon before commencing electrical work.
Routine Proving Unit Calibration helps minimise the risk of incorrect voltage verification that could result in unsafe working practices or unreliable electrical testing. Regular calibration supports safe operation within industrial installations, commercial facilities, and electrical maintenance environments.
Calibration certificates and documentation
Your equipment is returned in the same condition in which it was received and supplied with a calibration due-date label indicating when the next calibration is recommended. We also provide a calibration certificate together with the associated calibration records. These documents provide documented evidence of the testing completed and help support electrical inspection records, traceability, and compliance documentation.
We have calibration facilities conveniently located across the UK, giving you reliable nationwide coverage. Find your nearest location below.
Q: I am looking for proving unit calibration near me. Can Acutest help?
A: Absolutely. Acutest calibrates electrical proving units to verify that they provide the correct output voltage for checking the operation of voltage indicators before and after use. This helps support compliance with health and safety guidance such as GS38, as well as manufacturer specifications. We offer nationwide calibration coverage across the UK, typically using our own dedicated fleet of vans. Where this isn‘t possible, we use a secure courier service to ensure your equipment is transported safely.
Please find our local office locations below:
| Location | Postcode | Phone number |
| Newcastle-under-Lyme | ST5 7UG | 01782 563030 |
| Ham Green, Bristol | BS20 0DD | 01782 563030 |
| Newton Aycliffe | DL5 6ZF | 01782 563030 |
| Glasgow | G52 4LB | 01782 563030 |
| Norwich | NR6 6AW | 01603 406148 |
| London | SW19 3EX | 020 8540 6567 |