Grundfos SMART Digital S DDC Series, Инструкция по установке и эксплуатации

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English (GB)
25
6.8.3
Empty
and
Low level
signals
In order to monitor the fill level in the tank,
a dual-level control unit can be connected to the
pump. The pump responds to the signals as follows:
Both signal inputs are allocated to the closing
contact (
NO
) in the factory. They can be re-allocated
in the "
Setup
>
Inputs/Outputs
" menu to opening
contact (
NC
).
6.9
Basic settings
All settings can be reset to the settings default upon
delivery in the "
Setup
>
Basic settings
" menu.
Selecting "
Save customer settings
" saves the current
configuration to the memory. This can then be
activated using "
Load customer settings
".
The memory always contains the previously saved
configuration. Older memory data is overwritten.
7. Service
In order to ensure a long service life and
dosing accuracy, wearing parts such as
diaphragms and valves must be regularly checked
for signs of wear. Where necessary, replace worn
parts with original spare parts made from suitable
materials.
Should you have any questions, please contact your
service partner.
7.1 Regular maintenance
7.2 Cleaning
If necessary, clean all pump surfaces with a dry and
clean cloth.
Fill level sensor Pump status
Low level
• Display is yellow
•
flashes
• Pump continues running
Empty
• Display is red
•
flashes
• Pump stops
Caution
When the tank is filled up again, the pump
restarts automatically!
Warning
Maintenance work must only be carried out
by qualified staff.
Interval Task
Daily
Check, if liquid leaks from the drain
opening (fig.
23 , pos. 11) and if the
drain opening is blocked or soiled.
If so, follow the instructions given in
section
7.6 Diaphragm breakage .
Check, if liquid leaks from the dosing
head or valves.
If necessary, tighten dosing head
screws with a torque wrench at 4 Nm.
If necessary, tighten valves and cap
nuts, or perform service
(see
7.4 Perform service ).
Check, if a service requirement is
present at the pump display. If so,
follow the instructions given in
section
7.3 Service system .
Weekly
Clean all pump surfaces with a dry
and clean cloth.
Every
3 months
Check dosing head screws.
If necessary, tighten dosing head
screws with a torque wrench at 4 Nm.
Replace damaged screws
immediately.