English (GB)
35
8. Operation
8.1 Control and display elements
Fig. 30
Display of DDI 209
8.1.1 Display test
A display test is automatically performed when the
pump is switched on. All the segments of the LCD
are switched on for 3 seconds and the software
version number is then displayed for 2 seconds.
8.2 Switching on/off
•
To start the pump, switch on the power supply.
•
To stop the pump, switch off the power supply.
8.3 Checking the dosing flow with Plus
3
system
For pumps with Plus
3
system, the current dosing
flow can be checked during operation.
1. Close the isolating valve (D) at the calibration
tube (E).
2. The supply from the priming chamber (F) is shut
off and the calibration tube (E) is slowly emptied.
3. Using a stop watch, measure the time (t in
seconds) it takes to dose 3 or 10 ml of dosing
medium, depending on pump type.
4. Re-open the isolating valve (D) at the calibration
tube (E).
5. Calculate the dosing flow:
Fig. 31
Calculation of the dosing flow
Caution
In the event of a diaphragm leakage,
the dosing liquid may leak out of the
hole in the intermediate flange between
the pump and the dosing head.
The parts inside the housing are
protected from the dosing liquid for a
short time (depending on the type of
liquid) by the housing sealing. It is
necessary to check regularly (daily) if
liquid is leaking out of the intermediate
flange.
For maximum safety, we recommend
the pump version with diaphragm
leakage detection.
TM
03
62
57
45
06
Element
Description
Light-emitting diode (LED)
• Lights up red when the pump
is stopped.
• Lights up green when the
pump is started and briefly
goes out during a suction
stroke.
• Lights up yellow when the
pump is switched off
remotely.
• Flashes red if an error signal
is present.
• Goes out when the pump is
in menu mode.
"Start/Stop"
• Use this button to start or
stop the pump.
• Error signals can be
acknowledged by pressing
the "Start/Stop" button.
Use the "Menu/Info" button to
switch between the operating
modes.
Use the "Down" and "Up"
buttons to change values in the
display.
Stop
Start
Menu
Down
Up
Mode
Mode
Stop
Start
Menu
Down
Up
Caution
Before switching on the pump, check
that it is installed correctly.
See sections 5. Installation and
7.1 Initial start-up / subsequent
start-up.
Warning
Do not let the calibration tube (E) run
empty!
Re-open the isolating valve (D) in due
time!
TM
03 626
2 450
6
V
3 ml
t
-----------
10,8
t
-----------
l
h
---
=
=
V
10 ml
t
--------------
36
t
------
l
h
---
=
=
