Technical information

Ultrasonic Level Sensor LUC-M**
Installation conditions
DOCT-0805F 01/2010 185414
13
Installation conditions for
flow measurements
• Install the LUC-M** at the inflow side, as close above the maximum water level H
max
as possible
(take into account the blocking distance BD).
• Position the LUC-M** in the middle of the channel or weir.
• Align the sensor membrane parallel to the water surface.
• Keep to the installation distance of the channel or weir.
• You can enter the "Flow to Level" linearisation curve ("Q/h curve") using via the on-site display.
Example: Khafagi-Venturi flume
Example: Triangular weir
1 x b
0
b
0
BD
H
max
Khafagi - Venturi - flume
direction of flow
inflow
outflow
empty calibr.
max
max
max
max
min. 3 H
H
min. 2 H
α
min. 2 H
BD
(=
full calibr.)
empty calibr.