Pressure and vacuum gauges need a request that describes how the instrument is used, rather than its name alone. A useful enquiry allows the laboratory to assess the requested measurement, connections and documentation before a quotation is agreed. This guide helps maintenance and quality teams assemble that information; it does not specify a calibration procedure.
Prepare the following
- Manufacturer, model, serial number, quantity and a clear photograph of the dial or display.
- Whether the instrument indicates gauge, absolute or differential pressure; include units and the full indicated range.
- Normal operating values, requested calibration points, and the tolerance or specification used to judge suitability.
- Process medium, previous exposure or contamination, connection type, and any supplied adapters or electronic readout.
- Whether the instrument can be removed, its location, preferred timing, previous certificate and relevant repair history.
Ask the laboratory to confirm the agreed points, reporting requirements and accreditation status before work begins. Review the resulting certificate against the actual instrument and requested conditions.
Official references
Accreditation status for each instrument and range is confirmed by TEQ at quotation stage. The full accredited parameters and ranges are listed in TEQ’s current EGAC scope schedule. TEQ accreditation.
Frequently asked questions
Why is the pressure unit important?+
A number without a unit and pressure reference does not clearly identify the requested measurement. Send a photograph if the markings are unclear.
Does calibration automatically include adjustment?+
Agree this separately. State whether you need results before adjustment and whether repair or adjustment may be considered.
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