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Settings Below is a detailed description of the "Settings" menu item for the "Charging settings" 
menu item discussed above. Navigation is performed as described in the "Configuration 
mode" section. 
The individual selection options are explained in greater detail below:
The electrolyte circulation cycle is controlled by the charger's control system. A number of 
selection options are available for this purpose. 
The following settings are available for electrolyte circulation:
- Off:
- Electrolyte circulation switched off
- Continuous operation ("continuous"):
- Electrolyte circulation permanently on
- Program 1 to 5:
- Default electrolyte circulation programs and their relevant parameters can be 
found in the table under "Settings" in the "Display" chapter.
- Automatic:
- Automatic adjustment of electrolyte circulation flow rate based on the set battery 
parameters
- "User" - "On"/"Off":
- Individual setting of the electrolyte circulation
- The settings for "On" and "Off" determine the pulse/pause ratio of the air flow in-
tervals
Default electrolyte circulation programs and their relevant parameters can be found in the 
table below:
A list appears with the following selection options:
Electrolyte circulation ("Air pump") - for 3 kW devices only:
More information on the electrolyte circu-
lation can be found under "Electrolyte cir-
culation 3 kW" in the "Options" chapter.
Program ON 1 OFF 1 Repeat ON 2 OFF 2
1 30 min 25 min 1 x 5 min 25 min
2 3 min 10 min 4 x 3 min 20 min
3 3 min 12 min 1 x 3 min 12 min
4 5 min 10 min 3 x 5 min 20 min
5 2.5 min 7.5 min 1 x 2.5 min 7.5 min