Atmospheric Oil Mist Detection System
MULTIPLEX
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 Part2-25
ALARM OUTPUT WIRING
1. The alarm outputs are transmitted from the Control Monitor Unit (CMU).
2. The Alarms operate via Open or Closed contacts (Relays).
3. Below are wiring details for the following Alarm types:
i. Main Alarm (Relay 10)
ii. Early Warning Alarm (Relay 7)
iii. Functional Shutdown Alarm
iv. Fault Alarm (Relay 8)
4. The cable used should be a minimum 6 - cores and can range from a minimum
thickness of 0.25mm
2
up to a maximum 2.50mm
2
.
Relay No. Terminal
Block
Function Non - Alarmed Alarmed
1
Early Warning
Alarm
Connect to Pin 2 Disconnect
RL7 2 Common
3
Early Warning
Alarm
Disconnect Connect to Pin 2
4 Fault Alarm Connect to Pin 5 Disconnect
RL8 5 Common
6 Fault Alarm Disconnect Connect to Pin 5
7 Main Alarm Connect to Pin 8 Disconnect
RL10 8 Common
9 Main Alarm Disconnect Connect to Pin 8
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