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8.1
Typical Control System
The installation on site has to make sure that in case of any loss of power supply
and/or loss of air supply for the automatic stopping device the overboard
discharge valve close the overboard line and open the re-circulating line.
The system showed in the example, employs alarm relay 2 to control a
pneumatic solenoid valve which energises or de-energises a pneumatically
operated 3 - way valve as depicted in Fig. 5.
The separation process will continue until such time as the pollution level falls
below the alarm set point at which time the discharge will be directed overboard.
A pump stop system is according MEPC.107 (49) not allowed.
8.2
Remote EV Electric Valve control
It is possible to remotely control the EV valve. Connect a switch to Terminals
19&20. If the Terminals are connected (linked trough the switch) the EV valve will
switch to clean water. If the Terminals are open/disconnected, the EV valve will
switch to sample stream.
9
Power Supply
See Section 2 for important notes.
The unit is designed for a power supply of 24 V to 240 V AC or DC. It has an
automatic voltage selection. The power supply must have a fuse rated no more
then 2A.
Issue: 08.07.2015
DECKMA HAMBURG GmbH
Instruction Manual OMD-2008 (EV, FC, MCU Versions)
Page 13 of 28
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