Alarm Output Wiring - Quality Monitoring Instruments QMI MULTIPLEX Manual

ALARM OUTPUT WIRING

1. The alarm outputs are transmitted from the Central Monitor Unit (CMU) via a
10-way Harting Plug
2. The Alarms operate via Open or Closed contacts (Relays)
3. Below are wiring details for the following Alarm types:
Main Alarm (Relay 10)
Early Warning Alarm (Relay 7)
Fault Alarm (Relay 8)
4. The cable used should be a minimum 6-cores and can range from a minimum
thickness of 0.25mm up to a maximum 2.50mm
Relay No. Harting
Pin No.
1
RL7 2
3
4
RL8 5
6
7
RL10 8
9
For Shutdown relays see Part 2-20 and 2-21.
Installation Part2-20
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
Function
Early Warning Alarm
Common
Early Warning Alarm
Fault Alarm
Common
Fault Alarm
Main Alarm
Common
Main Alarm
Non - Alarmed
Connect to Pin 2
Disconnect
Connect to Pin 5
Disconnect
Connect to Pin 8
Disconnect
Alarmed
Disconnect
Connect to Pin 2
Disconnect
Connect to Pin 5
Disconnect
Connect to Pin 5
EM6/March 2015