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Even for current input / current output assignments that are
already weighted in the second function level (see curve 3a),
subsequent weighting can be set or weighting can be shifted
here. The value for the maximum flow rate Q
mA
is shifted (curve 3b).
max.
Q [l/h]
50 l/h
40 l/h
30 l/h
20 l/h
10 l/h
Fig. 37 Current input and current output with direct weighting
Q [l/h]
50 l/h
40 l/h
30 l/h
20 l/h
10 l/h
Fig. 38 Current input and current output with subsequent weighting
9.9.2 With calibrated pump
When calibrating the pump for your application and using current
signal control and/or current output, proceed as follows:
1. Calibrate the pump.
2. Determine the maximum flow rate Q
the pump: Q
is the maximum adjustable flow rate after
cal
calibration, e.g. in manual mode, or the displayed flow rate in
continuous operation (press and hold down the "Start/Stop"
button for longer than 1 second).
3. To set the current input / current output weighting, see section
9.9.3 Setting the weighting
.
For unweighted assignment (curves 1a, 2a, see fig.
34) select the following reference points:
Note
L: mA
= 0 (4) mA / Q
min.
H: mA
= 20 mA / Q
max.
Q
is not updated automatically when the pump is
cal
re-calibrated. This protects the user-defined value
Note
pairs. After calibration, new weighting may be
required!
36
at
select mA max.
I
/ I
0-20 mA
1..
I
in
/ I
out
0-20 mA
in
out
I
4-20 mA
in
2..
I
4-20 mA
in
I
4-20 mA, manual,
I
4-20 mA, manual,
out
out
kontakt
contact
0
0 mA
4 mA
8 mA
Q
/ mA
select mA min.
min.
Q
/
select mA min.
mA
min.
0
0 mA
4 mA
8 mA
by taking a reading on
cal
= 0 l/h
select mA min.
= Q
.
select mA max.
cal
Q
max.
Q
default (Q
max
1a
2a
Q
Q
select max.
select max.
1b
2b
12 mA
16 mA
20 mA
I
[mA]
I
[mA]
in
in
Q
/
Q
/ mA
select mA max. a
select mA max. a
max.
mA
max.
3a
Q
/
select mA max. b
3b
mA
max.
Q
/ mA
select mA max. b
max.
12 mA
16 mA
20 mA
I
[mA]
I
[mA]
in
in
default (Q
)
cal
)
kal
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