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Electrical system 8
B-MC - 12/18-2 - EHG-0016-01EN
127
The following tables will help you to correctly interpret the battery voltage
display.
Battery
voltage
(values during
operation)
Mobile operation
(vehicle moving,
no 230 V connec-
tion)
Battery operation
(vehicle station-
ary, no 230 V con-
nection)
Power operation
(vehicle station-
ary, 230 V con-
nection)
Notes regarding the bat-
tery voltage
Less than 11 V
Danger of total dis-
charge
No charging via the
alternator
If appliances are
switched off: Bat-
tery flat
No charging via the
transformer/rectifier
12 V power supply
overload
If appliances are
switched on: Bat-
tery overload
12 V power supply
overload
11.5 V to 13 V
No charging via the
alternator
1)
Normal range
No charging via the
transformer/recti-
fier
1)
12 V power supply
overload
1)
12 V power supply
overload
1)
13.5 V or more
Battery being
charged
Occurs only briefly
after charging
Battery being
charged
1)
If the voltage does not exceed this range for several hours.
Values for off-load voltage
Charging condition of the battery
Less than 12 V
Totally discharged
12.2 V
25 %
12.3 V
50 %
More than 12.8 V
100 %
Total discharge causes irreparable damage to the battery.
Measure the off-load voltage preferably several hours after the previous
charging (e.g. in the morning) and not directly after a current drain.
8.6.3 Displaying the tank level
The tank fill level will be displayed for approx. 20 seconds after it has
been called up.
Use the rotary knob (Fig. 134,5) for checking the fill level of the water tank or
the waste water tank. The fill level is displayed on the indicator scale for the
tank fill level (Fig. 134,2).
Summary of Contents for BMC 550
Page 2: ...Instruction manual 2 B MC 12 18 2 EHG 0016 01EN...
Page 8: ...Checklist before first journey of the vehicle 8 B MC 12 18 2 EHG 0016 01EN...
Page 12: ...1 Introduction 12 B MC 12 18 2 EHG 0016 01EN...
Page 20: ...2 Safety 20 B MC 12 18 2 EHG 0016 01EN...
Page 54: ...4 During the journey 54 B MC 12 18 2 EHG 0016 01EN...
Page 140: ...8 Electrical system 140 B MC 12 18 2 EHG 0016 01EN...
Page 172: ...9 Appliances 172 B MC 12 18 2 EHG 0016 01EN...
Page 186: ...10 Sanitary fittings 186 B MC 12 18 2 EHG 0016 01EN...
Page 202: ...11 Care 202 B MC 12 18 2 EHG 0016 01EN...
Page 224: ...13 Wheels and tyres 224 B MC 12 18 2 EHG 0016 01EN...
Page 240: ...16 Technical data 240 B MC 12 18 2 EHG 0016 01EN...
Page 242: ...17 Instructions for the service partner 242 B MC 12 18 2 EHG 0016 01EN...