Flow Meter · Instrumentation & Gauges
SM4xxx, SM6xxx, SM7xxx, SM8xxx by ifm electronic gmbh. DNV TA certificate TAA000037D.
| Antenna/sensor face inspection and cleaning | every 6-12 months, depending on cargo/product type |
|---|---|
| Calibration verification against an independent reference | annually or per the vessel's cargo system survey |
| Cable gland/junction box seal check | annually |
| Ex-certification label and barrier check | annually |
| Measurement accuracy drift | typically expected to remain within the maker's stated accuracy band for a radar-type level transmitter - confirm against the specific instrument's calibration certificate and manual |
|---|---|
| Junction box seal condition | any visible ingress of moisture indicates the seal has failed and should be renewed before it affects the electronics |
| Antenna face build-up | any coating thick enough to visibly change echo strength on the diagnostic trend should prompt cleaning - confirm the maker's acceptable build-up guidance for this sensor type |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Class interest is typically on cargo tank level/temperature gauging system integrity for cargo control and overfill/high-level alarm functions (SOLAS/IBC/IGC as applicable) - verify calibration records and that the DNV type approval certificate TAA000037D matches the installed sensor variant.
Estimated lifetime: Non-contact radar level transmitters of this type are typically expected to give in the order of 10+ years of service under normal tank conditions, provided the antenna, housing, and Ex-certification remain intact - confirm against the maker's documentation.
Verified against the DNV Approval Finder — the certificate below is issued by DNV, not by us.
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