English BATTERY DISCHARGER at constant current
20 D01470-03
T: refers to the past time from the beginning of the discharging (when the timer is disabled, at the
reachment of 10 hours the count starts again from 0h 00m).
5) Discharging suspension
The discharge can be temporally stopped at any time pressing the START/STOP key, then pressing it
again you enter back into the setting phase of parameters.
In this phase you can decide if to modify the discharging parameters.
Pressing once again the START/STOP key the discharge starts up from the point where it was
interrupted.
6) Discharging shut-off
The shut-off of the discharge occurs in case of two conditions: when the battery voltage reaches the stop
voltage or when the past time reaches the set time.
The condition, causing the discharge shut-off, is shown by the flash of the corresponding parameter.
It is important to notice that the battery discharging voltage rises itself, therefore it is normal that the Vbat
and Vstop values do not coincide at the discharging end, even not when that arrived by the reachment of
Vstop.
7) Analysis of the issues
In case of constant discharge at 5 hours rating the analysis of issues is very simple:
At the end of the discharge (which usually occurs with Vstop flashing) it is sufficient to compare the value
of discharged amperhours with the value forwarded from the battery manufacturer as the battery capacity.
In case the Ah value is very lower than the one forwarded from the manufacturer, it would be necessary
to carry out a detailed analysis of each single cell of the considered battery, in order to find out if they are
out of repair.
If the Ah value is next to the one indicated it means that the considered battery is, on the whole, in a good
condition.
Alarms and diagnostic messages
A battery with inverted polarity has been connected.
A battery with a voltage higher, than the one accepted from
the equipment, has been connected.
The internal thermal protection starts operating because of an
extreme heat.
An unexpected current absorption occurred from the
electronic section or a dis-alignment of the adjustments set
by the factory.
The set value is impossible to be discharged or a failure on
the capacitor set or main contactors with switching
problems (dirty contacts)
In case of the model whit double unit the diagnostic messages will also have the following writings::
MODULE 0 if the failure occurred in the main unit (with
display)
MODULE 1 if the failure occurred in the second unit (without
display).
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