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5. Construction
OMD-24 Series generally consist of a Computer Unit, a Measuring Cell, and further
equipment (e.g. Valve Assembly, EV Valve, and Automatic Cell Cleaning Device).
The Computer Unit contains the display PCB with the data logger and the terminals for
external connections.
The Measuring Cell is built out of an anodized all-aluminium body with inlet and outlet
block made from stainless steel. This rugged cell contains optics and electronics and is
connected with the Computer Unit via a plugged data cable. Measuring Cell is mounted
onto a valve support, which holds the valve assembly, too. Sample water flow and clean
water usage are controlled by an electric switchover valve. This assembly is connected to
the measuring cell by a push-in connector.
The Measuring Cell should be positioned vertical.
All OMD-24 units can be mounted on wall or as bulkhead installation. It is also possible to
split the computer unit from the measuring cell if the available space is not sufficient.
Optionally a connection cable for up to 5 m distance from Computer Unit to Measuring
Cell is available.
Listed below there are more details about each specific Unit.
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