VEGA VEGASON 71 - D - Manual (Page 19)

VEGASON 71 - D 19
6 Flow measurement
6 Flow measurement
6.1 Linearization
6.1.1 Meter flume / weir
The system measures the level and calculates the flow.
The relationship between level and flow is linear in most
cases.
The level value (in %) must be therefore converted into a
flow porportional value.
The necessary mathematical functions depend on the
flumes and weirs used.
For the standard flumes and weirs the respective functions
are available as pre-programmed linearization curves and
can be directly enquired.
Flumes / weirs which do not correspond to the known
functions, can be imitated via three programmable
linearization curves.
NO standard flumes /
weirs
Programmable
linearization curves
Enquire mode range
0 - 99 = 4
5
6
Program index markers
for linearization curves
4 - 01 … 32
5 - 01 … 32
6 - 01 … 32
Enquire linearization
curves
0 - 18 = 4
5
6
Standard flumes / weirs
Pre-programmed
linearization curves
Enquire linearization
curves
0 - 18 = 1
7
bis
12
Processing results flow proportional