Vega VEGASON 62 Operating Instructions Manual page 18

4 Mounting
Flow measurement with
rectangular flume
18
Fig. 14: Standpipe in the tank
1 Vent hole: ø 5 ... 10 mm (0.197 ... 0.394 in)
VEGASON 62 can be used from tube diameters of 50 mm (1.969 in).
Avoid large gaps and thick welding joints when connecting the tubes.
Generally carry out a false echo storage.
Measurement in a standpipe is not recommended for extremely
adhesive products.
The short examples give you introductory information on the flow
measurement. Detailed planning information is available from flume
manufacturers and in special literature.
3 ... 4 h
max
90°
2
2
Fig. 15: Flow measurement with rectangular flume: d
sensor (see chapter "Technical data"); h
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:
•
Install the sensor on the headwater side
max.
1
min.
1
≥ 50 mm
3
3
min.
= max. filling of the rectangular
max.
VEGASON 62 • 4 ... 20 mA/HART - four-wire
90°
4
= min. distance of the