Proline Prowirl 73 F, W
Endress+Hauser 9
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, upward flow is prefered
in vertical pipes to avoid partial pipe filling (see orientation A).
In the case of hot fluids (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 fluid (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 mounting orientations.
Caution!
• If fluid temperature is ≥ 200 °C, orientation B is not permitted for the wafer version (Prowirl 73 W)
with a nominal diameter of DN 100 and DN 150.
• In case of vertical orientation and downward flowing liquid, the piping has always to be completely filled.
A0001869
Possible orientations of the device
Minimum spacing and cable length
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 ° steps. This means you can read off the display comfortably in all orientations.
Esc
E
-
+
B
D
A
C
Esc
E
-
+
Esc
E
-
+
We recommend you observe the following dimensions
to guarantee problem-free access to the device for
service purposes:
• Min. spacing in all directions = 100 mm (A)
• Necessary cable length L + 150 mm
A0001870
L
A
Esc
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