Instruction Manual
OCM F
OCM F - Rev. 04 as of 18.02.2014
Page 13
5
Function principle
5.1
General
The OCM F is a permanent measurement system for flow measurement and
flow control. The device is designed to be used primarily in slight to heavy pol-
luted media with various compositions. It can be operated in partial and perma-
nent filled channels and pipes with various shapes and dimensions.
The measurement method is based on the ultrasound Doppler principle.
Hence, it is indispensable for the system’s capability to work that the water
contains particles which are able to reflect the ultrasonic signal sent by the
sensor (dirt particles, gas bubbles or similar).
The OCM F utilises an active compact Doppler sensor Type KDA (after this
named >KDA sensor<). This KDA sensor is available as flow velocity and combi
sensor. The combi sensor Type “KDA“ can be combined with a sensor-
integrated pressure measurement cell for hydrostatic level measurement.
1
Ground plate
2
Acoustic coupling layer with sonic converter behind
3
Temperature sensor
4
Electronics
5
Pressure measurement cell (option)
6
Duct to pressure measurement (option)
7
Cable gland
8
Sensor cable
Fig. 5-1
Construction of combi sensor Type “KDA“ with additional
pressure measurement cell
Summary of Contents for osm-f
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