English (GB)
20
7.2 Operating the pump
7.3 Shutdown
7.3.1 Switching off / uninstalling
1. Switch off the pump and disconnect it from the power supply.
2. Depressurise the system.
3. Take suitable steps to ensure that the returning dosing
medium is safely collected.
4. Carefully remove all lines.
5. Uninstall the pump.
7.3.2 Cleaning
1. Rinse all parts that have come into contact with the medium
very carefully:
– lines
– valves
– dosing head
– diaphragm.
2. Remove any trace of chemicals from the pump housing.
7.3.3 Storage
Storage of the pump:
1. After cleaning (see above), carefully dry all parts and reinstall
the dosing head and valves, or
2. change the valves and diaphragm.
See section
.
7.3.4 Disposal
Disposal of the pump:
• After cleaning (see above), dispose of the pump in accordance
with the relevant regulations.
8. Operation
8.1 Control and display elements
Fig. 17
Display of DDI 222
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.
8.1.2 Display indicator
When switched on (if the pump was stopped) and during pump
operation, the dosing flow setpoint is displayed. With contact
control the set ml/contact value is displayed.
8.2 Switching on/off
• To start the pump, switch on the power supply.
• To stop the pump, switch off the power supply.
Note
To operate the pump, see sections
9. How to use the control unit
and
and, if necessary, section
Warning
Risk of chemical burns!
Wear protective clothing (gloves and goggles) when
working on the dosing head, connections or lines!
Do not allow any chemicals to leak from the pump.
Collect and dispose of all chemicals correctly!
Note
If possible, rinse the dosing head before shutting
down the pump, e.g. by flushing it with water.
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.
Observe section
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.
• Flashes red/green when an error message
is present and the pump is running, or
restarts automatically after the error has
been corrected.
• 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.
Caution
Before switching on the pump, check that it is
installed correctly. See sections
and
7.1 Initial start-up / subsequent start-up
.
Stop
Start
Menu
Down
Up
Mode
Mode
Stop
Start
Menu
Info
Down
Up
Summary of Contents for DDI 150-4
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