Bedienungsanleitung Graupner Ultramat 12 (Seite 17 von 36) (Deutsch, Englisch, Französisch)

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17. Error messages and warnings

The ULTRAMAT 12 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 charger responds accordingly: in some cases the unit’s settings are

automatically reduced (e.g. charge current / 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 messages 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.

___________ _____

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

car batt. empty

This warning message is displayed if the voltage of the car

battery falls

below the value set in the „Low voltage cut-

off“ section of the user settings (11.0 V).

If the charger detects an interruption of the connection

between battery and charger during a charge process, the

screen displays this error message. If you see this error

message when the charger is in use, it may indicate an

intermittent contact.

Note: the same error message also appears if you

deliberately interrupt the charge process, e.g. by discon-

necting the charge lead.

If the internal charge safety timer has elapsed, the current

process is terminated for safety’s sake. The safety timer is

set permanently to 180 minutes for Ni-Cd / Ni-MH batt-

eries. For Lithium batteries the set period is 180 minutes.

The timer is disabled when a lead-acid battery is being

charged. These settings are fixed, and cannot be altered.

Possible causes: charge current too low: battery cannot be

fully charged; charge leads too thin and / or too long -

charge current cannot rise high enough: battery capacity

too high.

If the charger detects an excessive voltage, e.g. incorrect

setting of the cell count with a Lithium or lead-acid battery,

this error message is displayed.

The same error message may also appear if the cells

connected to the charger are overcharged.

If the charger detects too low a voltage, e.g. incorrect

setting of the cell count with a Lithium or lead-acid battery,

this error message is displayed.

The purpose of this error message is to avoid the cells

becoming deep-discharged due to an incorrect setting.

This warning message is displayed if a battery is

connected to the unit’s charge outputs with incorrect

polarity.

When a charge or discharge program comes to an end,

the screen displays the message END, alternating with

the program name. At the same time the integral buzzer

sounds for a limited period, unless you have already

disabled it in the „Button click / buzzer“ user settings

section.

Ready message

The current input voltage can be called up at any time by

pressing the INC and DEC buttons

simultaneously

This can be very useful if you are using your car’s battery

as energy source for charging

Press any button to return to the menu system.

15. Screen displays

Battery voltage

________________

CHG 12:56 00321

NC+4.50A 11,985V

Program Charge / discharge time

Charge / discharge current

Capacity

The two-line liquid-crystal screen displays in a clear form the important information generated

during the charge / discharge process. The information remains visible on-screen until you

disconnect the battery that is being charged. Once you connect another battery for charging, the

previously displayed values are erased, and cannot be called up again.

16. On-screen monitor displays

The ULTRAMAT 12 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 critical

limit values is exceeded, the charge process is switched off. Typical triggers would be excessive

voltage, excessive temperature or a depleted car battery.

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

and the buzzer sounds to alert you.

___________ _____

BATTERY CHECK

WAIT PLEASE...

Measuring process

When you hold the START button pressed in for about two

seconds, the charger measures the battery connected to

it. This message appears on the screen for one or two

seconds before the charge process is initiated.

Battery type

___________ _____

Input Voltage

13,62V

DECINC

___________ _____

CHG 48:32 03363

NC 200mA 9.773V

END

Input voltage display

___________ _____

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

wrong polarity

___________ _____

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

contact break

___________ _____

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

time limit over

___________ _____

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

bat.volt too hi.

___________ _____

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

bat.volt too low

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