Operation
Operating modes
43
© Lutz-Jesco GmbH 2014
Subject to technical changes.
140327
Solenoid-Diaphragm Dosing Pump
MAGDOS LP
Operating Instructions
BA-10231-02-V03
11.2.2.5 Starting the dosing pump
Precondition for action:
The dosing pump has been connected in accordance with the
chapter entitled „Analog input“ (see page 29).
1.
Press
Start
.
2.
Apply a 0 - 20 mA or a 4 - 20 mA signal to the dosing pump's
analog input.
The dosing pumps starts dosing immediately. The system auto-
matically calculates the resulting delivery capacity and displays it.
Dosing pump has started.
11.2.2.6 Stopping the dosing pump
Press
Stop
or reduce the incoming signal to the value for
0%
current
or less.
Dosing pump has stopped.
11.2.3 Pulse input
In the
Pulse input
operating mode, the system regulates the stroke
frequency and the number of strokes in dependence on the number of
pulses and the pulse spacing of the pulse signal that is connected at the
pulse input (see “Connection socket 2” on page 29).
11.2.3.1 Selecting the operating mode
1.
Press
Menu
.
2.
Use the
or
key to choose the
Operating mode
menu item
and press
OK
.
3.
Use the
or
key to choose the
Pulse input
menu item and
press
OK
.
The dosing pump displays the current configuration of this oper-
ating mode's parameters (Menu 3.31).
Fig. 11-8: Parameters of the operating mode
4.
Press
OK
.
The dosing pump displays the start screen of
Pulse input
mode.
Fig. 11-9: Start screen of Pulse input
11.2.3.2 Choosing the pulse input mode
You can choose from the following modes in
Pulse input
operating
mode:
1.
Press
Setup
.
The dosing pump displays the current configuration of this oper-
ating mode's parameters (Menu 3.31).
2.
Press
Mode
.
3.
Use the
or
key to choose a Mode and press
OK
.
The dosing pump displays the current configuration of this oper-
ating mode's parameters (Menu 3.31).
4.
Press
OK
.
The dosing pump displays the start screen of
Pulse input
mode.
11.2.3.3 Pulse input modes
The parameters that you can set are different depending on the mode.
Strokes
The
Strokes
pulse input mode offers the following configuration
options:
If the signal value is below 4 mA with a 4 - 20 mA signal, the
system issues an "Analog input error" message.
i
Pulse input
1 Impulse = 1 Stroke
Memory = 1 Stroke
Menu Mode
3.31
OK
Setup
Pulse input
Menu Reset
Start
Liter
h
0%
0.00
Setup
Mode
Explanation
Strokes
Transmission and reduction of the number of
pulses compared to the number of strokes
Output
Delivery of a fixed output per pulse
Water meter
Operation on a contact-type water meter
Table 11-1: Explanation of pulse input modes
The system marks the currently active mode by displaying
(On)
after the menu item. In the factory default setting, the
Strokes
mode is preselected:
Strokes
(On)
.
Parameter
Explanation
strokes / pulse
Specifies the required number of strokes that the
dosing pump carries out per pulse. in this
connection, the system determines the stroke
frequency on a dynamic basis based on the time
between the last two pulses.
Stroke frequency = number of strokes/pulse
spacing
Default settings: 1 stroke
Adjustment range: 1 - 999 strokes.
pulses / stroke
Specifies the required number of pulses that
must be connected to the input to trigger a
stroke.
Default setting: 1 pulse
Adjustment range: 1 - 999 pulses.
Table 11-2: Strokes configuration Mode
i
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