DSE Model 5520 Automatic Mains Failure Control and Instrumentation System Operators Manual
5520 OPERATING MANUAL ISSUE 1 04/02/05 AM
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10.3.2 USING INSULATED RETURN (TWO WIRE) SENDERS.
59
57
60
58
Fuel
level
Oil
Pressure
EARTH
Coolant
temperature
NOTE:- . It is important that terminal 60 ( sender common ) is soundly connected
to an earth point on the ENGINE BLOCK, not within the control panel.