Schaudt DT 220 B Instruction Manual page 18

DT 220 B control and switch panel instruction manual
Voltage display
Starter battery
Onboard supply
overloaded
5.5.2.3
Maximum possible
battery capacity
18
The following table shows how to interpret the displayed off-load voltage
correctly. These values apply for gel batteries.
Values for off-load voltage
Less than 12 V
12.2 V
12.3 V
More than 12.8 V
The starter battery voltage display for basic vehicles fitted with a 12 V starter
battery will be slightly too low if the refrigerator is using the 12 V whilst dri-
ving. The voltage display will be correct when the engine is stopped, when
the fridge is switched off and/or if it uses gas or if the vehicle is fitted with a
24V starter battery.
Switch off some of the consumers if the 12 V power supply is overloaded
(i.e. if the battery voltage falls below 12 V).
Battery capacity
The maximum utilisable leisure battery capacity will now be displayed.
These settings cannot be changed. The display shows the % of the nominal
capacity (can be altered, see below). The 80 % default setting shows the
maximum battery capacity that is utilisable in practical motorhome useage.
This can also be increased to be above 80 %.
Polling:
Switching the system on (see Chapter 5.4.1).
Press the "Battery menu" button.
Press the "Set up" menu button and keep it held down for at least 3 s.
The display will change over to battery menu set up mode.
F
The "leisure battery" symbol is now displayed. The associated maxi-
F
mum value is also displayed.
The full or flat battery status is detected by the control and switch panel. The
maximum capacity will be recalculated after each complete discharging cy-
cle (complete charging and complete discharging). The default setting can
no longer be reached because of the increasing age of the battery. The sta-
tus of the leisure battery can be determined from this. The battery must be
checked and replaced whenever necessary if the maximum capacity is less
than 50 % of the nominal capacity.
A brand new battery only reaches its full capacity after several charging
Y
cycles.
The lower the battery temperature is (and the further it is away from the
ideal temperature of 20 °C), the greater the capacity display error.
The battery cannot be fully charged if the battery temperature is very low
and the system's full or flat indicator will no longer work correctly as the
battery capacity is less at low temperatures (see information provided by
the battery manufacturer).
Issued: 30.06.2006
Charging condition of the battery
Totally discharged
25 %
50 %
Full
830.588 BA / EN