Electrical test meters: match instruments to their records
- Reading time
- 2 minutes
- Last reviewed
Give each test meter its own dossier. Keep calibration evidence, condition information and supplied accessories in that file, but do not treat them as interchangeable proof.
A report may describe measurement performance within a stated scope. It does not automatically confirm that every lead, probe or accessory now in the case is suitable, or that the instrument's condition has remained unchanged since the report.
The dossier in five parts
Identity. Record manufacturer, model, serial number and photographs of readable markings. Include the instrument's inventory reference so a case swap does not disconnect the meter from its file.
Measurement evidence. Attach the complete available calibration report. Check the identifier, date, reported scope and limitations. Use the calibration certificate matching guide for the distinction between a document's findings and a broad claim of present accuracy.
Accessories. List probes, leads, adapters, chargers, cases and other items individually. Record identifiable markings and known substitutions. Avoid describing a mixed collection as an original kit without supporting evidence.
Condition and history. Retain maintenance, repair and assessment records. Record known damage, reported symptoms and later events that may need competent review. Do not turn a display switching on into evidence of safe operation or measurement accuracy.
Open questions. Name the missing information, the person responsible for obtaining it and the decision needed before catalogue approval. Examples include an unmatched report, an unidentified lead or a repaired instrument with incomplete paperwork.
A useful release check
Before the dossier goes to the sale team, compare the instrument identifier, report identifier and accessory list side by side. If they disagree, stop the particular claim that depends on the match. Resolve the evidence rather than editing the description to conceal the discrepancy.
UKAS's metrology information describes accreditation in measurement services. Any relevant laboratory accreditation still needs to relate to the service and scope actually involved. It is not a general approval of everything in a used instrument case.
A PAT record is a different type of evidence and must remain attached to the item assessed. This article does not explain live-circuit testing, verify electrical measurement categories or provide instrument-use instructions.
Present the sale evidence clearly
State exactly which records are available and their dates. Avoid “fully certified” when the documents support narrower claims. If other gauges and micrometers are being sold, preserve their sets and identifiers before combining them into a wider measuring-equipment lot.
Send the dossier to UK Auction Group. Flag missing or conflicting records so the valuation discussion reflects the equipment and evidence that will actually accompany the sale.
Explore the workshops and tools guides.
Sources
- UK Auction Group: valuations Checked
- UKAS: metrology sector accreditation Checked
This guide gives general information. Equipment-specific, legal, tax and safety decisions may need a qualified adviser or competent specialist. The guides do not promise sale prices, fees or results.