Checking a thermometer and investigating temperature throughout an enclosure answer different questions. A thermometer request concerns the specified sensor and readout. A chamber study may examine conditions at several locations and over time within an agreed working volume and loading condition. A reading at one point does not, by itself, describe every position in the enclosure.
Before requesting a quotation, identify
- Equipment type, manufacturer, model, serial number and whether the request concerns a sensor, indicator, complete system or enclosure.
- Working temperatures, required points, process tolerances and the intended use of the results.
- Probe type, dimensions, cable/readout arrangement, and whether it can be removed from the installation.
- For an enclosure enquiry: internal dimensions, intended working volume, loading condition, operating settings and access for measurement equipment.
- The required question: indication error, changes over time, differences between locations, or another explicitly agreed characteristic.
Ask what the proposed work would cover and which conditions would be recorded. Request a clear distinction between the instrument being calibrated and any wider performance study.
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
Does a calibrated thermometer prove an entire oven is uniform?+
No. The thermometer result alone does not establish the spatial temperature distribution in that oven.
Is chamber mapping the same as sterilisation validation?+
Do not treat the terms as interchangeable. The objective and applicable requirements must be reviewed separately.
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