AKG WMS4000 User Instructions page 5

4 Charging
(Table 3: Charging a new or deep-
discharged BP 4000
(residual voltage too low))
Note:
4.6 Recovery cycle
Note:
Table 4: Recovery cycle
12
CHARGE
>red/orange<
red
>red/orange<
red
>red/orange<
red
>red/orange<
red
green
The entire initial charging cycle takes about 15 to 17 hours.
If you do not press the RECOVER key, the BP 4000 will be charged normally upon initialization.
Partially discharging the BP 4000 many times may reduce its capacity (memory effect) or affect the accu-
racy of the remaining-capacity display.
The recovery cycle performed by the CU 4000 charger reduces the memory effect and restores the accu-
racy of the remaining-capacity display.
After approx. every 16 partial-discharge cycles, the transmitter display will indicate "Err.Acc" and "--.-"
instead of the hour display. (The remaining battery capacity will only be indicated by the bar graph.) Once
you insert the transmitter into the charger, the RECOVER LED will start flashing orange.
These messages request you to start a recovery cycle as soon as possible. The charger will not perform
a recovery cycle before you have pressed the RECOVER key for at least 3 seconds.
In most cases, the "Err.Acc" message in the transmitter display is only a request to perform a recovery
cycle rather than an error message!
However, if the "Err.Acc" message comes up again when you power the transmitter up after a success-
ful recovery cycle (the RECOVER LED will not flash orange on inserting the transmitter), there may be a
communication problem between the transmitter and the BP 4000. In this case, please contact your near-
est AKG Service Center.
CHARGE
orange
red
red
red
>red/orange<
red
>red/orange<
RECOVER Status
red Recovery cycle: the
BP 4000 is being dis-
charged.
red Recovery cycle: the
BP 4000 is being charged
for the second time.
red Recovery cycle: the
BP 4000 is being dis-
charged.
red Recovery cycle: the
BP 4000 is being charged
for the third time.
red Recovery cycle: the
BP 4000 is being dis-
charged.
red Recovery cycle: the
BP 4000 is being charged
for the fourth time.
red Recovery cycle: the
BP 4000 is being dis-
charged.
red Recovery cycle: the
BP 4000 is being
charged for the last time.
green The recovery cycle has
been successfully com-
pleted and the BP 4000
is fully charged. The
charger switches to
trickle-charging mode.
RECOVER Status
--- The inserted device is
being checked.
The test takes about 4 to
10 seconds.
>orange< The BP 4000 is being
charged, and a recovery
cycle is recommended.
>green< The BP 4000 is being
charged and the
RECOVER LED indicates
the RECOVER key is
being pressed.
red The recovery cycle has
started. The BP 4000 is
charged for a few min-
utes if required.
red Recovery cycle: the
BP 4000 is being dis-
charged.
red Recovery cycle: the
BP 4000 is being
charged for the first time.
red Recovery cycle: the
BP 4000 is being dis-
charged.
Action
---
---
---
---
---
---
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---
Remove the transmit-
ter/BP 4000 from the
charger.
Action
---
Press and hold the
RECOVER key next to the
flashing RECOVER LED.
Hold the RECOVER key
for at least 3 seconds.
Release the RECOVER
key.
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---
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CU 4000