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Wartsila’s User Group Forums 50 SG Engine Oil Mist Detectors


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    We have oil mist detectors that on occasion during startup are causing engine trips. When the engine starts, the LED indicators will start to climb slowly after about one minute and sometimes will reach high enough to cause an engine trip.

    When this happens, there is what appears to be water vapor droplets behind the LED indicator lens. We have checked the quality of the engine oil for contamination, especially water and found none.

    One thought is that we are sucking heated air from the engine compartment, through the piping to the OMD and when the hot tubing meets the cooler room temperature outside the piping, then it condenses.

    After one or two re-starts, the problem goes away. Has anyone else experienced this and if so, what did you do to remedy the issue?

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