Quality Monitoring Instruments QMI MULTIPLEX Manual page 54

RESPONSE TO ALARM
There are two stages of oil mist alarm indication:
1. ANTICIPATORY/EARLY WARNING
At 80% the light will assume the 'flashing' mode.
The channel number will be indicated and the digital reading will indicate the percentage
density of the pre-set mist alarm level. The early warning alarm relay (RL7) will operate.
NOTE: This alarm is automatically operated when the oil mist density level reaches 80% of the
pre-set alarm level.
2. FULL ALARM
At 100% of alarm level the red indicator will flash indicating that the oil mist level is above
the pre-set alarm level. The offending channel will be displayed alongside the digital read-out
level. The engine slow down relay alarm RL9 will operate if wired into the system. At this level
RL10, the main alarm, will be activated. Further action should be taken in accordance with the
engine room standing procedures.
Over-riding the QMI MULTIPLEX system during manoeuvring procedures is at the operator's
discretion. If such a function is required it should be incorporated in the ship's overall system.
IMPORTANT: It is advisable that during either the anticipatory or full alarm condition that
personnel should leave the area.
3. FAULT ALARMS
The fault alarms indicates any fault in the monitoring system as shown on the Monitor
faceplate. This uses relay RL8. See table below for the fault conditions as presented on the
Monitor faceplate. For more information see the Fault Directory in Part 4.
Channel Reading
1 - 12
1 - 12
1 - 12
1 - 12
C
If 'No CPU' light is on, there is a processor fault.
'dd' on test indicates when the Detector is dirty so it is necessary to clean the lens.
'cd' on test indicates when the Detector is clean.
Running Procedure
EMAIL qmi@oilmist.com WEBSITE www.oilmist.com 4 East Barnet Road, London, EN4 8RW, UK. TEL +44 (0)20 7328 3121
Engine Oil Mist Detection System
MULTIPLEX
F1 Check and repair relevant cable
F2 Clean Detector according to instructions
F3 Replace Detector Head
IC Checking operating instructions
F4 Check fan and fan failure detecting system
Part3-10
Response
EM6/March 2015