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3.6 Inputs
The unit also has four active inputs, which can be used separately as well.
a) Separator Input is dedicated to be used according the MEPC.107 (49).
b) Reserve Input reserved for future use.
c) Optionally there is an active input for external flow switch (FLOW). The Unit will
be in alarm condition, whenever Terminals are opened/ disconnected. Normally
this input is delivered with a link.
d) An Input for fresh water switchover for units with an Electric Valve is available.
3.7 EV (Electric clean water Valve)
The OMD-24 EV is designed with an Electric Switchover Valve to switch the instrument
from the sample stream to supply of clean, oil free water. Whenever fresh water is
allowed to flow to the Measuring Cell, the OMD-24 EV will switch over to alarm condition
as required by MEPC.107(49), and it will also continue to display the measurement result.
The OMD-24 EV setup replaces the manual valve setup for the standard OMD-24, and also
allows remote flushing.
3.8 Automatic Cell Cleaning Device
The Automatic Cell Cleaning Device is a useful addition to the OMD range of monitoring
equipment. It was developed in order to ease the task of routine cleaning as described in
the manuals and to ensure that the measuring system of the monitoring equipment is
kept in good working order.
Auto Clean System provides a truly automatic cleaning device which is designed to run
only when the system is on. The Auto Clean System consists of:
a) Cylinder/ piston assembly for physical cleaning of the sample cell.
b) Air Regulation Filter Unit (different makes and types may be used).
c) Auto Clean logic control with valve. It determines the frequency of the cleaning
cycles.
i
The Automatic Cell Cleaning Device does not replace the operator maintenance
schedule but can reduce the maintenance workload.
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