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Lindenberg-Anlagen GmbH

MEC24-A, MEC24-S, MEC24-H, MEC24-B

Radar Level Gauge · Cargo Level & Temperature Gauging

Class-certified type (DNV register) · technical data sheet not yet verified​​⁠‍​​​‌​‍‌‍‌⁠‍⁠‌‍⁠‌

MEC24-A, MEC24-S, MEC24-H, MEC24-B by Lindenberg-Anlagen GmbH. DNV TA certificate TAA00002J5.

Inspection

Inspector Detail

Common issues

  • Antenna window fouling or cargo residue buildup causing signal attenuation
  • Cable gland moisture ingress affecting signal or power integrity
  • False echoes from tank internal structure (ladders, heating coils) confusing the reading
  • Calibration drift versus manual ullage/sounding reference over time
  • Communication link faults to the cargo control room display
  • Intrinsically safe barrier or power supply faults

Inspection checklist

  • Cross-check of radar reading against manual ullage/sounding tape
  • Antenna/window visual inspection during tank entry
  • Cable and gland condition at the tank penetration
  • Intrinsically safe barrier and earthing/bonding check
  • High level and high-high level alarm relay function test
  • Display and cargo control room indication comparison
  • Junction box seal and gasket integrity

Service intervals

Cross-check against manual soundingeach loading/discharge, or per the vessel's safety management system
Antenna/window cleaningat dry dock or as fouling is observed
Full calibration/verificationtypically annual or per class requirement
IS barrier and earth continuity checktypically annual

Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.

Typical wear limits

Measurement accuracy driftradar gauges have no classic mechanical wear parts; the relevant limit is deviation from the manual sounding reference, which is typically expected to stay within a small margin (on the order of a few millimetres to roughly 10-15 mm) depending on tank condition - confirm the specific accuracy tolerance against Lindenberg-Anlagen's documentation for the MEC24 series

Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.

Critical spares

  • Antenna/horn assembly
  • Cable gland and IS barrier
  • Local display/indicator unit
  • Gasket and seal kit for the tank penetration
  • Junction box terminals

Safety

  • Tank entry for antenna inspection requires an enclosed space entry procedure and a valid gas-free certificate
  • Intrinsically safe circuit integrity must not be compromised by unauthorised parts or wiring changes
  • High-level alarm failure carries an overfill risk during cargo operations

Class survey

Class surveys typically require cargo tank level gauging and independent high-level alarms to be tested and cross-checked against manual sounding at each relevant survey, with particular attention to overfill alarm function per applicable tanker rules (e.g. MARPOL Annex I overfill protection requirements).

Estimated lifetime: Electronic tank gauging units of this type are typically specified for continuous service in the order of 10-15+ years with periodic calibration and gasket renewal, rather than an hours-based rating - confirm against the manufacturer's documentation.

Classification

DNV type approval

Listed in the DNV Approval Finder at the time we recorded it. The certificate is issued by DNV, not by us; check its current status at DNV.

CertificateTAA00002J5
Open the certificate at DNV
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