En
gl
is
h (
G
B)
40
The maximum displayed/adjustable flow rate is
automatically set according to the selected pump
type and the calibrated stroke volume.
Input range for the flow rate
* For counter-pressures lower than 3 bar, Q
min.
continuously increases from 0.004 l/h to 0.006 l/h.
9.4.3 Contact signal control
•
Use the "Start/Stop" button to start or stop the
pump.
For continuous dosing in a process
For each signal received at the contact input of the
pump (e.g. from a water meter with reed contact
output), the pump doses the set dosing capacity.
The dosing is continuously distributed between the
incoming contacts via a controller. The maximum
dosing capacity must not be exceeded.
Input range for the dosing capacity per contact
Even if the pump receives more contact signals than
it can process at the maximum flow rate, it only runs
in continuous operation with a maximum stroke
frequency of 180/min. (120/min. in slow mode).
Fig. 40
Display: contact signal control
Use the "Up" and "Down" buttons in the first function
level to set the dosing volume for each contact
signal.
1. When the pump is stopped (LED lights up red),
press the "Menu/Info" button.
– The first function level is opened.
2. Use the "Up" and "Down" buttons in the "contact
signal control" menu to set the dosing volume per
contact signal.
3. Press the "Start/Stop" button to confirm the
settings and to exit the first function level.
– The pump is running (LED lights up green).
9.4.4 Current signal control 0-20 mA / 4-20 mA
For current signal control, see section
9.9 Current
signal control 0-20 mA / 4-20 mA
.
Pump type
Q
min.
Resolution of flow rate
[l/h]
DDI 0.4-10
0.004*
1 ml/h
DDI 2.2-16
0.025
5 ml/h for Q
1 l/h
10 ml/h for Q
1 l/h
DDI 2.5-10
0.025
DDI 5.5-10
0.055
DDI 13.8-4
0.140
20 ml/h for Q
10 l/h
100 ml/h for Q
10 l/h
DDI 20-3
0.200
Note
The pump must be started first in this
operating mode (LED lights up green
and "Run" appears in the display).
Pump type
Str
o
ke volu
me
Min. do
si
n
g
cap
acity
(= 1/50 str
o
ke/con
tact)
Max. do
si
n
g
cap
acity
(= 4 str
o
kes/co
ntact
)
[ml]
[ml] [ml]
DDI 0.4-10
0.07
0.001
0.28
DDI 2.2-16
0.22
0.004
0.86
DDI 2.5-10
0.22
0.004
0.88
DDI 5.5-10
0.55
0.011
2.20
DDI 13.8-4
1.24
0.025
4.96
DDI 20-3
1.92
0.039
7.86
T
M
03
66
02
45
06
Contact ml
1.75
Содержание DDI 209
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