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An approved purchase specification does not prove that the instrument arriving at site is the approved assembly. Explosion-proof radar inspection should connect the delivered nameplate, options, accessories and documents to the accepted order. Resolve discrepancies before the equipment is released for installation in the classified location.
Keep the accepted configuration available at goods receipt
Give the receiving inspector the approved model and option list, drawing revision and required document schedule. A purchase order that says only "radar level meter" cannot support a meaningful configuration check. Record the serial number and photographs of the delivered markings without opening equipment in an unsafe location.
Check manufacturer and type identity against the applicable certificate and schedule. For an IECEx claim, verify the issue and status through the scheme's official records. Read the scope rather than assuming that a component certificate or a related model covers the completed instrument.
Hold points for explosion-proof radar inspection
| Finding | Disposition before release |
|---|---|
| Different option code | Confirm whether the actual electronics, housing or antenna remains within the accepted documentation. |
| Missing or unclear marking | Obtain traceable identification; do not infer it from the box label or a similar unit. |
| Unidentified entry parts | Verify glands, adapters and plugs against the protection concept and installation instructions. |
| Transit damage | Refer damage affecting the enclosure or assembly for the permitted assessment; a powered display is not clearance. |
Some shipping caps protect an opening during transport but are not approved operating plugs. Determine their purpose from the supplied documents. Keep separate any project-supplied accessories until their compatibility has been reviewed; do not accept a substitute solely because its thread fits.
For a proposed METRAVON MV-RD12, obtain the documents for the ordered configuration. The ordinary product page does not establish a particular hazardous-area certificate for every option. If the required evidence cannot be matched to the delivered unit, keep its classified-location approval unresolved.
Carry installation conditions into the work package
A certificate check is incomplete if the installer never receives the applicable conditions. Where an X suffix identifies specific conditions of use, assign the relevant requirements to the actual installation and inspection steps. Do not leave them only in an attachment held by purchasing.
Have the responsible specialist verify the protection concept, required circuits, bonding, entries and environmental limits. Gas and dust requirements differ. An IP rating concerns ingress and is not a substitute for explosion-protection evidence. Process pressure and temperature ratings also need to match the installed connection and seals independently.
Control any later field substitution through the same approval route. Replacing a cover, gland or electronics module can change the documented assembly even when the equipment still operates. Do not drill, machine or modify protection-related parts using a generic repair method.
Q1. Should the packing-list model be accepted if the nameplate differs?
No. Record both and resolve the identity with traceable supplier documentation. The paperwork must describe the actual equipment being installed.
Q2. Does incoming inspection authorise energising in the hazardous area?
No. It establishes the received equipment's status. The required installation checks and site release remain separate responsibilities.
Q3. What evidence should be retained?
Keep the serial-linked markings, accepted configuration, applicable document issue, accessory identification and closed discrepancy records. Future maintenance needs that same traceability.
Summary
Inspect what arrived, then verify how it is installed. Report any MV-RD12 marking, option or accessory mismatch with photographs and order details before releasing the affected equipment.
