Proline Prowirl 72F, 72W, 73F, 73W
Hauser
13
Operating conditions: installation
Installation instructions
Vortex meters require a fully developed flow profile as a prerequisite for correct volume flow measurement.
For this reason, please note the following points when installing the device:
Orientation
The device can generally be installed in any position in the piping.
In the case of liquids, there should be upward flow in vertical pipes to avoid partial pipe filling (see orientation
A).
In the case of hot media (e.g. steam or fluid temperature
≥
200 °C), select orientation C or D so that the
permitted ambient temperature of the electronics is not exceeded. Orientations B and D are recommended for
very cold media (e.g. liquid nitrogen).
Orientations B, C and D are possible with horizontal installation.
The arrow indicated on the device must always point in the direction of flow in all orientations.
Caution!
• If fluid temperature is
≥
200 °C, orientation B is not permitted for the wafer version
(Prowirl 72W, 73W) with a nominal diameter of DN 100 and DN 150.
• To guarantee the flow measurement of liquids, the measuring tube must always be completely full in pipes
with vertical downward flow.
A0001869
Minimum spacing and cable length
To ensure problem-free access to the measuring device for service purposes, we recommend you observe the
following dimensions:
• Minimum spacing in all directions = 100 mm (A)
• Necessary cable length L + 150 mm
A0001870
Rotating the electronics housing and the display
The electronics housing can be rotated continuously 360 ° on the housing support. The display unit can be
rotated in 45 ° stages. This means you can read off the display comfortably in all orientations.
B
D
A
C
L
A
