VEGA VEGAPULS 62 (≥ 2.0.0 - ≤ 3.8) 4 … 20 mA_HART four-wire - Manual (Page 24)

3 ... 4 h
max
≥ 50 mm
90°
2 3
1
h max
d min
≥ 2 mm x h
max
90°
4
Fig. 18: Flow measurement with rectangular flume: d = min. distance of the
sensor; hmax. = max. filling of the rectangular flume
1 Overfall orifice (side view)
2 Headwater
3 Bottom water
4 Overfall orifice (view from bottom water)
Khafagi-Venturi flume
I n general, the following points must be observed:
l I nstallation of the sensor at the inlet side
l I
nstallation in the center of the flume and vertical to the liquid
surface
l D istance to the Venturi flume
l M in. distance of the sensor to max. storage level
24 VEGAPULS 62 • 4 … 20 mA/HART four-wire
4 M ounting
28440
-EN
-090305