MULTIPLEX
Atmospheric Oil Mist Detection System
AM8/JANUARY 2015
EMAIL qmi@oilmist.com WEBSITE www.oilmist.com 4 East Barnet Road, London, England, EN4 8RW TEL +44 (0)20 7328 3121
Installation Part2-26
OPTIONAL PLANT SHUTDOWN WIRING
1. The Plant Shutdown outputs are transmitted from the Central Monitor Unit (CMU)
via a 4-way Harting Plug.
2. The Shutdown operates via Open or Closed Contacts (Relay).
3. Below shows the wiring for Plant Shutdown (Relay 9).
4. The cable used should be of a minimum 2 cores and can range from a
minimum thickness of 0.25mm
2
up to 2.5mm
2
maximum.
Relay No Harting
Pin No
Function Un-alarmed Alarmed
RL9
1 Plant Shutdown Disconnect Connect to Pin 2
2 Common
3 Plant Shutdown Connect to Pin 9 Disconnect
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