User Manual

3 ... 4 h
max
≥ 50 mm
90°
2
3
1
h
max
d
min
≥ 2 mm x h
max
90°
42 3
Fig. 16: Flow measurement with rectangular flume: d
min.
= min. distance of the
sensor (see chapter "Technical data"); h
max.
= max. filling of the rectangular
flume
1 Overflow orifice (side view)
2 Headwater
3 Tail water
4 Overfall orifice (view from bottom water)
In general, the following points must be observed:
l Install the sensor on the headwater side
l Installation in the centre of the flume and vertical to the liquid
surface
l Distance to the overfall orifice
l Distance of orifice opening above ground
l Min. distance of the orifice opening to bottom water
l Min. distance of the sensor to max. storage level
VEGAPULS 62 • 4 … 20 mA/HART two-wire 23
4 Mounting
36503-EN-100607