4.3 SYSTEM MONITORING
The OMD Mk7 provides access to a range of system parameters that can be used to monitor system
operation and can also give an early indication of changes in the engine.
Engine Status, see section 3.4.
Provides an indication of engine faults and isolations as well as the peak oil mist levels measured on the
engine.
Detector Screen, see section 3.7.
Provides an indication of detector alarm levels, faults and isolations as well as the peak oil mist levels
measured on the detector.
Detector Parameter Readings, see section 4.5.
Monitoring changes in the contamination level for each detector can be used to determine the optimal
cleaning intervals for a particular engine, allowing detectors to be cleaned before a fault is indicated.
Changes in the rate of detector contamination may also indicate changes in the engine oil, e.g. increasing
contaminants or particulates in the oil
Test Log, see section 5.3.
Regular examination of the System Test Log can highlight changes in the engine operation, increases in
oil mist reading, temperature or vibration may be symptoms of a potential engine issue.
Event Log, see section 3.6.
Examination of the event log could identify any underlying ongoing faults on the system, e.g. power
supply variations, memory errors etc.
4.4 ROUTINE MAINTENANCE SCHEDULE
This maintenance schedule is a guide only as every engine is different in its usage, oil, temperature,
scrubber performance etc.
Maintenance check sheets are provided in Appendix 2.
WEEKLY:
1. Record current contamination level for each detector head, see section 4.5. See attached
spreadsheet example in Appendix 1.
Note: - the detector cleaning interval will be unique to each engine and dependent upon many factors
such as the way the vessel engine is operated, the engine temperature, the condition of the engine oil
and the engine service intervals.
Tracking the changes in contamination value over a period of time will allow an engine specific detector
cleaning program to be formulated.
MONTHLY:
(TEST PROCEDURE SHOULD BE DONE WITH NO LOAD ON THE ENGINE).
Perform Smoke Test at each Detector using the push-in smoke test connector and Graviner Smoke Test
kit, see section 2.11.4
TWICE PER YEAR:
(TEST PROCEDURE SHOULD BE DONE WITH NO LOAD ON THE ENGINE).
Perform a visual inspection
1. Externally inspect all Mk7 Control Unit(s) in the OMD system taking note of the condition of all
Glands, External Wiring and LED indications displayed.
2. Highlight any holes that are either NOT or incorrectly blanked off as these will affect the IP65 and
EMC rating.
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