Operation
Operating modes
43
© Lutz-Jesco GmbH 2014
Subject to technical changes.
140725
BA-10103-02-V01
Stepper Motor-driven Diaphragm Dosing Pump
MEMDOS SMART LK
Operating instructions
i
In the case of pulse multiplication, you must increment the
stroke buffer manually. Otherwise, you can't confi rm the
confi guration by pressing
OK
.
You can confi gure parameters
Strokes per pulse
and
Pulses per
stroke
at the same time to defi ne an exact number of strokes for a
number of pulses. in this connection, the system determines the stroke
frequency on a dynamic basis based on the time between the last two
pulses.
Example:
If you set "7 strokes per pulse" and "3 pulses per stroke", the dosing
pump carries out 7 strokes per 3 input pulses.
Output
The
Output
pulse input mode offers the following confi guration options:
Parameter
Explanation
Output
Specifi es the required output per pulse in ml. The
output is calculated from the dosing pump's
stroke volume after calibration and the automati-
cally calculated ratio of the number of strokes to
the number of pulses.
The value that is displayed in brackets indicates
the number of strokes and pulses (number of
strokes/number of pulses).
Stroke buffer
See "Stroke buffer" mode under „Strokes“ on
page 42.
Tab. 39: Output confi guration mode
i
The delivery capacity depends on the dosing pump's delivery
pressure. To display the delivery capacity correctly, you must
calibrate the dosing pump, see 41.
Water meter
The
Water meter
pulse input mode offers the following confi guration
options:
Parameter
Explanation
Output
Specifi es the delivered output of the dosing
pump per cubic metre (m3) throughfl ow of the
water meter in ml. The value corresponds to the
throughfl ow amount per pulse.
Since the dosing pump only controls the output
via the stroke frequency, you must set the cycle
between the water meter pulse and the dosing
pump's stroke.
The value that is displayed in brackets indicates
the number of strokes that must be triggered
per number of water meter pulses. (Number of
strokes/number of pulses).
Stroke buffer
See "Stroke buffer" under mode „Strokes“ on
page 42.
ml/pulse
Specifi es the water meter's throughfl ow
amount per pulse in ml.
l/Imp.
Specifi es the water meter's throughfl ow
amount per pulse in l.
m3/pulse
Specifi es the water meter's throughfl ow
amount per pulse in m3.
Maximum
Specifi es the water meter's maximum
throughfl ow amount in m3/hr.
Tab. 40: Water meter confi guration mode
On the basis of the water meter's values
ml/pulse
,
l/pulse
or
m3/
pulse
and the delivered dosing capacity (output) , the dosing pump
automatically determines the stroke frequency. If the dosing pump's
maximum output is exceeded during a fast sequence of pulses, the
system issues a warning message.
i
If you enter contradictory parameters, the system displays this
when you try to save them (Menu 3.41). It is not possible to
activate the operating mode without correcting the parame-
ters.
11.2.2.4 Confi guring the pulse input mode
1.
Press
Setup
.
The dosing pump displays the current confi guration of this operating
mode's parameters (Menu 3.31).
2.
Press
Setup
.
3.
Use the or key to choose a parameter of the type and press
OK
.
4.
Press the
+
key to increment the parameter's value or the
-
key to
decrement it.
5.
Press
OK
.
The dosing pump displays the current confi guration of this operating
mode's parameters (Menu 3.31).
