OMD-3 24ch
Consilium Salwico OMD-3 24ch — Oil Mist Detection.
Inspector Detail
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Common issues
- Sample line or sensor head fouling with oil residue, reducing sensitivity
- Sample pump/fan failure reducing sample flow below the detection threshold
- False alarms from condensation or dirty optics in the detector head
- Sample tube blockage at individual cylinder monitoring points
- Calibration drift over time requiring more frequent zero/span checks
Inspection checklist
- Check sample flow rate at each monitored point against the maker's specification
- Inspect and clean sample lines/tubes for oil residue or blockage
- Verify alarm and shutdown function via the test/simulate mode
- Check the detector head optics for fouling and clean per maker's instructions
- Verify sample fan/pump operation and filter condition
- Confirm the alarm threshold setting matches the class-approved value
- Check power supply/battery backup status
- Inspect wiring and connections at the detector unit and control panel
Service intervals
| Functional/alarm test | weekly to monthly per the vessel's safety management system or class requirement |
| Sample line cleaning | per maker's schedule, or when flow indication drops |
| Calibration/zero check | per maker's schedule, typically every 6-12 months |
| Detector head cleaning | per running condition, at least at each cylinder-unit overhaul |
| Sample fan/filter maintenance | per the maker's running-hour interval |
Critical spares
- Sample line/tube fittings
- Sample fan/pump unit
- Detector optical sensor head
- Fuses/power supply module
Safety
- Never disable or bypass the oil mist detector to suppress nuisance alarms - it is the primary crankcase explosion early-warning device
- Follow the correct isolation procedure before opening the crankcase for detector head access
- Treat any oil mist alarm as genuine until proven otherwise - reduce load or stop per the engine's emergency procedure
Class survey
Class requires the oil mist detector to be tested for correct alarm/trip function at each survey and after any maintenance affecting the sample system. Detector coverage must correspond to the number of monitored crankcase compartments, and functional test records should be retained onboard as part of the engine's safety documentation.
Components & Design
Component data being added…
Technical Data
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