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A document headed "test report" may contain measured results, a routine functional check or only a statement of conformity. Check a radar test report against the inspection scope agreed for the order. Do not assume those different documents establish the same evidence.
Match the report to the instrument being delivered
Check model, serial identification, electrical construction and the tested assembly. A report for another instrument in the same family is not an individual test record. If the report covers electronics separately from the antenna or process connection, make that scope explicit.
For METRAVON MV-RD12, confirm which inspection records are available and included before ordering. The published nominal accuracy of +/-2 mm does not by itself promise a particular calibration certificate, accredited service or customer-witnessed test.
| Report item | What the buyer should establish |
|---|---|
| Tested identity | The result belongs to the delivered unit or clearly identifies a different test scope. |
| Test points | The actual distances or input conditions are stated, not only the nominal measuring range. |
| Reference | The comparison method and relevant reference information support the claimed result. |
| Acceptance | The applicable limits and pass decision correspond to the agreed inspection requirement. |
Read the measurements in a radar test report
Look for reference values, instrument observations and any resulting errors where the agreed test calls for them. A page listing the catalogue specification beside the word "passed" does not reveal which observations were made. Ask for clarification of the method rather than treating missing results as measured zero error.
Check whether results were recorded before or after adjustment. If an adjustment was made, retain enough information to understand the final configuration and the affected test scope. Repeated observations can show consistency under the test conditions; they do not alone establish agreement with the reference.
Do not carry a factory result beyond its test conditions
A reference target in a controlled setup does not reproduce a foaming liquid, a long nozzle or moving internals. Use the report for the function it evaluates and retain the site tests needed for the actual tank. Similarly, a correct distance result does not validate the PLC scale or a volume calculation.
For a contract requiring quantitative acceptance, agree the reference suitability, uncertainty treatment and decision rule in advance. Do not invent a universal reference ratio or assume that an instrument with a finer display is automatically an adequate reference. Obtain the relevant test documentation and review it against the required tolerance.
Q1. Is a conformity statement the same as a calibration report?
No. Read what the document actually certifies and which observations it contains. Specify the required document type in the order rather than relying on its title.
Q2. Can a report replace commissioning on the tank?
It can support equipment acceptance, but it does not establish the installed echo path, process response or receiving-system behaviour. Keep those checks in the site scope.
Summary
Define the inspection evidence before buying and review its actual scope on receipt. Send the MV-RD12 configuration and required test documentation to clarify what the quotation includes.
