Waterworks
IOM
Sensors
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3.3 INSTALLATION CONDITIONS
3.3.1 Positioning in relation to the plant
To ensure optimal working conditions, the flowmeter must be installed correctly inside the system. Correct and
incorrect installation positions are described and illustrated below.
The flowmeter must remain below the hypothetical blue line (piezometric level line), which connects the two
levels of fluid to be measured (Fig. 11).
NOTE: Avoid placing the flowmeter above the piezometric level line (Fig. 12).
3.3.2 Important guidelines for correct installation
The junction box on the sensor is designed to have the IP68 protection degree only when properly closed and
tightened. The manufacturer does not assume any responsibility for an improper closing by third parties.
For correct working conditions, please follow the important guidelines shown in the following figures. Improper
installation may result in an inaccurate measurement.
For partially filled pipes or with downward flow and free exit, the flowmeter should be placed in a U-shaped
tube (see Fig. 13).
Fig. 11 Correct position
Fig. 12 Incorrect position
Full bore Sensors
Reduced bore Sensors
5 DN
3 DN
0 DN
0 DN
Fig. 13 Installation on U-shaped tube
