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10.3 Channel windows
In addition to the main window, four channel windows are available which can be called up using the
arrow buttons under the screen. When a channel window is called up, the whole screen is available
for that channel. Fig. 4 shows the functions now available using the arrow buttons. For example, if
you select a channel window, you can read off the currently running function in the bottom part of the
screen, or monitor the progress of the function, or check the remaining time for that process.
The jog dial is used to select the channel window display in the bottom part of the screen. Starting
from the display of the currently running function, turn the jog dial one click to the right to display the
programmed charge and discharge currents, and one click more to display the processing time still
required and the time already elapsed (Fig. 5). If you rotate the jog dial to the left, the available infor-
mation is simply displayed in the reverse sequence.
Please note that the stated times are approximate, and should only be considered as estimations, and
even then only where a time prognosis is possible in any way for the selected function.
For example, an accurate time forecast for the Cycle function is impossible, as the ALC 8500-2 Expert
cannot predict how many charge / discharge cycles have to be completed before the battery reaches
its maximum capacity. In this case a time estimate is only displayed when the final cycle is reached.
Fig. 6 shows the symbols associated with the time displays.
The bottom half of the screen displays the message "Channel not used" if you select a channel to
which no battery is assigned. In this case the top half of the screen displays the channel information
as in the main window.
Channel window
Main window
Channel 1
Fig. 4: Selecting the channel window using the arrow buttons below the screen
Fig. 5: Time prognosis
(channel 1)
10.4 Channel LEDs
Above each pair of output sockets you will find an LED indicator which displays the status of the
associated charge / discharge channel. As soon as a processing program is started, the LED asso-
ciated with that channel lights up.
At the conclusion of the processing program the corresponding LED flashes briefly every 1.5 seconds;
this indicates that the trickle charge function is under way; this automatically follows every charge
process.
If the charger automatically terminates the process for any reason, the corresponding LED flashes at
a high rate to alert you to a problem.
Channel window
Channel window
Channel 2
Channel 3
Remain (residual time)
Elapsed (elapsed time)
Fig. 6: Time prognosis symbols
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Channel window
Main window
Channel 4
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