Operation Manual

1
24 Motorcaravan - 09-08 - DET-0033-07E
N
Electrical system
9
9.8 Panel IT 992
9.8.1 V/tank gauge for battery voltage and water or waste water
levels
Battery voltage The V/tank gauge is for the indication of the battery voltage of the starter bat-
tery or the living area battery.
With the V/tank gauge (Fig. 137,1), note the top scale. The gauge automati-
cally lights up as soon as a switch is pressed.
Displays:
Push the rocker switch (Fig. 137,9) up " ": The battery voltage of the
starter battery is displayed.
Push the rocker switch (Fig. 137,9) down " ": The battery voltage of the
living area battery is displayed.
The following tables will help you correctly interpret the battery voltage of the
living area battery displayed on the panel IT 992.
Fig. 137 Panel IT 992
1 V/tank gauge
2 Current gauge
3 12 V indicator lamp
4 12 V main switch
5 240 V indicator lamp
6 Rocker switch for special equipment
7 Rocker switch for reading the level in
the water or waste water tanks
8 ALARM warning light for the living
area battery
9 Rocker switch for reading the battery
voltage of the starter and living area
batteries
Battery voltage
(values during
operation)
Mobile operation
(vehicle moving,
no 240 V con-
nection)
Battery opera-
tion
(vehicle station-
ary, no 240 V
connection)
Power operation
(vehicle station-
ary, 240 V con-
nection)
Danger of total
discharge (battery
alarm)
11 V or less
1)
12 V power sup-
ply overload
If appliances are
switched off: Bat-
tery flat
If appliances are
switched on: Bat-
tery overload
12 V power sup-
ply overload
The battery is not
charged by the al-
ternator, the alter-
nator's regulator
is defective
The battery is not
charged by the
transformer/rectifi-
er, the transform-
er/rectifier is
defective
11.1 V to 13.2 V 12 V power sup-
ply overload
2)
Normal range 12 V power sup-
ply overload
2)
The battery is not
charged by the al-
ternator, the alter-
nator's regulator
is defective
The battery is not
charged by the
transformer/rectifi-
er, the transform-
er/rectifier is
defective