Deutronic DBL Manual (MPC4) - 14VDC - EN - 16 / 20 - 10 / 2006
Display Meaning / Reasons Information / Trouble shooting
POLARITY
Battery is connected with wrong
polarity to the charger
Connect black clamp to (-) pole
Red clamp is connected to (+) pole
RECHARGE
If in operation mode trickle charge
the load draws a current higher
than the recharge threshold (I
tri
+I
re
),
then the DBL is reset into charge
mode.
Switch off any additional load (e.g. light, ignition
etc.)
RELAY VOLT
Voltage adjustment internal
/external aborted
Contact service station
SHORT CELL
Shorted cell has been detected at
the connected battery - progress
aborted
Note: In the case of a definitely good battery a faulty
report can be caused by a load which is switched in
parallel to the battery
Remedy: Turn off ‘SHORTCELL DETECT’ or remove
load which is switched in parallel
SHORTED
Short circuit (!) detected at the
output
Check load and cables for any damages
To continue operation after error is removed,
release clamps and connect the load again
STANDBY
Idle state (standby), the device is
ready for operation
Begin charging / supply mode by selecting menu
item START
Start configuration via item MENU
STARTUP
'Switch on delay time' is active, the
supply starts after the predefined
idle time
Parameterisation - see 5. c) DEVICEMENU – for
device specific parameter setting
SUPPLY
Operation ‘Supply mode’ is active
TRICKLE
Charge mode is finished, the DBL
operates in trickle mode
7) Annex – CELLCHECK / SHORT CELL DETECT
To run this feature correctly, no load impedance may be connected in parallel to the charged battery.
Disconnect the battery from the vehicle before starting the cellcheck!
To detect defect batteries it is necessary to adjust the maximum amp-hour for the battery before the
charge operation starts. The adjusted ampere hours should not be less than the written ampere hours
on the battery because the unit stops charging before the battery is charged high enough. The best
way to detect defect batteries is to adjust the ampere hours 10 to 20% higher than the written ampere
hours on the battery. For example a battery with 50 ampere hours should be adjusted in the charger
unit with 60 ampere hours. In any case should the ampere hours in the charger unit be adjusted even
when the “CELLCHECK” is “OFF”, because the ampere hours menu limits the charge process and
avoids extreme over-charging. If the “CELLCHECK” is active, the charge process stops twice for 30
seconds automatically. During that stop the charger measures the battery voltage and the internal
algorithm separates good and bad batteries. In case of defect batteries stops the charging process
and in the display appears “SHORT CELL DETECT”.
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