Endress+Hauser Prosonic S Series - Installation Conditions for Flow Measurements

Prosonic S FDU90/91/91F/92/93/95/96
12 Endress + Hauser
Installation conditions for flow
measurements
• Install the sensor at the inflow side (A), above the maximum water level H
max
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 (see chapter "Accessories").
Example: Khafagi-Venturi flume
L00-FDU9xxxx-17-00-00-xx-004
(A): inflow side; (B): outflow side
Example: V-notch weir
L00-FDU9xxxx-17-00-00-xx-005
2) The installation distances of important flumes and weirs are specified in the Operating Instructions BA 289F (FMU90 with HART) and BA 293F (FMU90 with
PROFIBUS).
1 x b
0
b
0
BD
FDU 91
H
max
(A) (B)
max
min. 3 H
BD
FDU 91
H
max