Burkert 8020 Notice D'utilisation page 40

4 COMMISSIONING
4.2.2 Programming of multiplier coefficient D
The multiplier D is programmed with the fourth rotary switch (see Fig. 4.1). The
correspondance between numbers on the rotary switch and the mutiplicator D is as follows:
Position
Coefficient D 0.01
(litre/pulse)
The pulse divider generates a pulse all KxD pulses from the 8020. that is to say at all Dx1
litre. In case of previous example 1 (K=56,59 puls/l), with a coefficient D=1, it corresponds
to a pulse all 46,6 pulses from 8020. that is to say one pulse per litre. If in the same case
D=10. it corresponds to one pulse each 10 litres.
Confirm the multiplier D by a reset (short-circuit on jumper 8 - Fig. 4.1 ).
!
Essential condition: the product KxD must be greater or equal to 2. If it is not the case,
the pulse divider gives no output signal.
In order to generate a pulse all n litres (n different of basic multiplicators D).
It is necessary to program the following caculated K-factor:
K = K
calculated
where D is the first multiplier greater than n.
Example: to get a pulse all 5 litres with a standard K-factor of 56,59 IMP/L (DN25 PVC),
the following K-factor must be programmed:
K =K
calculated standard
Here D=10.
8020
0 1 2
0.1 1
x(n/D)
standard
x(n/D) = 56,59x(5/10) = 28,30
FLOW SENSOR TYPE 8020
3 4 5
10 100 1000 10000
E-15-
6 7 8
1 1
9
1