Prosonic S FDU90/91/91F/92/93/95/96
12
Hauser
Installation conditions for flow
measurements
• Install the sensor at the inflow side (B), above the maximum water level H
max
(=F) plus the blocking distance
BD.
• Position the sensor in the middle of the channel or weir.
• Align the sensor vertically to the water surface.
• Comply to the installation distance of the channel or weir.
2)
• Use a protective cover, in order to protect the sensor from direct sun or rain. A protective cover is available
for the sensors FDU90 and FDU91 (
Example: Khafagi-Venturi flume
L00-FDU9xxxx-17-00-00-xx-004
A:
Khafagi-Venturi flume,
B:
inflow,
C:
outflow,
BD:
blocking distance,
E:
empty calibration,
F:
full calibration,
V:
direction of flow
Example: V-notch weir
L00-FDU9xxxx-17-00-00-xx-005
BD:
blocking distance,
E:
empty calibration,
F:
full calibration
2)
The installation distances of important flumes and weirs are specified in the Operating Instructions BA00289F (FMU90 with HART) and BA00293F (FMU90
with PROFIBUS).
BD
A
E
B
C
H
max
=F
1 x b
0
b
0
V
max
min. 3 H
BD
H
max
E
(= F)
