Bedienungsanleitung Graupner Ultramat 17 (Seite 20 von 33) (Deutsch, Englisch, Französisch)

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16. Error and warning messages

The charger incorporates a wide range of protective and monitoring systems designed to check the

charger’s functions and monitor the state of its electronics. If any of the unit’s limit values are exceeded,

in some cases the unit’s settings are automatically reduced (e.g. charge or discharge current); in others

the charge process is switched off (e.g. car battery almost flat).

The liquid crystal screen displays the cause of the error. Most error message are self-explanatory, but

you may find the following list useful when fault-finding. The warning message and the audible warning

signal can be switched off by pressing the “ENTER” button.

Automatic current limiting

___________ _____

___________ _____NiCd-Man. 010:43

1,50 01735 23,45

MAX.

___________ _____

___________ _____NiCd-Man. 010:43

3,75 01735 23,45

*ready*

When a charge / discharge program completes its cycle, the

screen displays the program name alternating with the mes-

sage “Completed”. At the same time the integral buzzer sounds,

in accordance with the settings you have made under “Button

click / buzzer”.

If you set a charge / discharge current which the ULTRAMAT

25 cannot deliver because it falls outside its technical limits,

the unit automatically reduces the current to the maximum

possible value. To warn you of this, the screen displays the

charge / discharge current which is actually flowing, alterna-

ting with the warning message “MAX”.

Possible causes of an automatic reduction include:

- High cell count combined with high discharge current; the maximum discharge power is 50 Watts.

- Converter power insufficient to produce the selected charge current.

- Overload protection - current reduction protects the unit from overloading.

- Car battery voltage too low to supply the selected charge current.

Pb charge programs:

In the Pb charge programs the screen displays the message “MAX” when the charger has automatically

reduced the set charge current because it is too high for the battery on charge.

“Completed” message

Display of car battery voltage

___________ _____

___________ _____NiCd-Auto 010:43

car batt. 12,8V

The actual car battery voltage can be called up during any

charge / discharge process by pressing the INC and DEC but-

tons

simultaneously.

Note: the car battery voltage

cannot be displayed if a charge /

discharge program is not currently active.

DECINC

___________ _____

*****ERROR******

car batt. empty

This warning message is displayed if the voltage of the car

battery falls

below the value selected in the program menu

“Low voltage cut-off” in the user settings (11.5 V or 10.8 V).

14. Screen displays

Battery voltage

________________

NiCd-Man. 010:43

3,75 01735 23,45

Charge / discharge program Charge / discharge time

Charge / discharge current

Capacity

The essential information relating to the current charge / discharge process is displayed in clear form on

the two-line liquid crystal screen; the screen also indicates that the buzzer is sounding. The previously

displayed values can then no longer be called up.

15. Screen monitor displays

The charger incorporates a wide range of protective and monitoring systems designed to check the

charger’s functions and monitor the state of its electronics. If any of the unit’s limit values are exceeded,

the charge process is switched off. Typical triggers would be excess voltage, excessive temperature or

a depleted car battery.

If any of these problems occur, the liquid crystal screen displays the cause of the error, and the buzzer

sounds to alert you.

___________ _____

cycl. D 1 010:43

1,50 01735 23,45

When the cycle program has been started, the screen dis-

plays at top centre the progress of the program: “L” stands for

Charge and “E” for Discharge. The number after the letter indi-

cates the number of the current cycle.

A display of individual cycle data is

only available when you

have selected the NiCd balancing program, and the cycle in-

formation is only retained until the battery is disconnected, or

until you interrupt the program by pressing the MODE button.

When you do this, the data is reset to “00000”.

Pressing the INC button takes you to a display of the individual

data sets, and each successive press of the INC button swit-

ches to the next set of cycle data. Pressing the DEC button

cycles back through the displayed data.

Display of individual charge cycles

(NiCd balancing program only)

DECINC

___________ _____

Cycle 1

E:01039 L:01179

DEC

INC

___________ _____

Cycle 10

E:01039 L:01179

Charge /

dischrge

cycle

Charged-in

capacity

Discharged

capacity

___________ _____

___________ _____NiCd-Man. 010:43

1,50 01735 23,45TEST

Measurement process

The charger repeatedly measures the battery during the char-

ge process. During the measurement phases the screen dis-

plays the message “TEST” in place of the charge current.

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