Quality Monitoring Instruments QMI MULTIPLEX Manual page 47

Engine Oil Mist Detection System
MULTIPLEX
OPERATION - continued
BEST PRACTICE
Always re-set the Monitor so that each Detector has the new maximum programme setting.
The first relay activates at 80% and is an early warning alarm.
The second alarm relay is the main alarm and the third alarm or Shutdown is activated at
100%.
FAULT ALARM
Also see Part 3-10
The second relay (the main alarm relay) and the third relay (engine or Shutdown alarm) may or
may not be used at all, this is up to the user to decide.
A fault alarm relay is completely divorced from the other relay system and is only activated
after a fault has developed in the Oil Mist Detection System. No relays will activate for 2.5
seconds as the Monitor will check first that the fault is in the system and not a problem with
the environment.
Even when this fault alarm relay is activated the instrument goes on monitoring unless
there is a major malfunction of the Monitor or fan. Information is also being continuously given
as a digital display of the highest concentration of oil mist and its location.
The digital display will always indicate the channel (i.e. area) with the highest level of oil mist.
IN THE EVENT OF A FAULT ALARM IT WILL BE THE FIRST CHANNEL TO GO INTO THE
FLASHING GREEN, AMBER, RED CONDITION THAT IS INDICATED ON THE DISPLAY (F1, F2,
AND F3).
NOTE: THERE IS A ONE-MINUTE DELAY - after a self-test or a channel check it will always
revert to the highest channel shown on the display.
EM6/March 2015 Running Procedure Part3-3
EMAIL qmi@oilmist.com WEBSITE www.oilmist.com 4 East Barnet Road, London, EN4 8RW, UK. TEL +44 (0)20 7328 3121