54 | SAMLEX AMERICA INC.
equalization Procedure -
General Instructions
a) Please read information in Section 4, page 17 under heading "4 Stage
Charging Profile in Manually Activated Equalization Mode."
b) Please ensure that before the batteries are equalized, they should be
deeply discharged to ≥ 80% capacity. The Standing voltage (Terminal
voltage after disconnecting charging sources[s] and load[s] for at least
3 hours) at ≥ 80% discharge will be:
- 12v Battery: Around 11.7v
- 24v Battery: Around 23.4v
Do not equalize partially or fully charged batteries.
c) Follow the recommendations of the battery manufacturer for
equalizing the batteries as the equalization voltage and time will
depend upon the specific design of the battery. As a guide, a heavily
used flooded battery may need to be equalized once per month and
a battery in light duty service, every two to four months. If performed
too frequently, or done improperly, equalization can be hazardous
to the health of the batteries. Never equalize a battery more than
necessary.
d) Turn off or disconnect all DC loads connected to the battery during
equalization. Higher voltage applied to the battery during equalization
may exceed the safe levels for some DC fed electronic loads like
inverters and radios etc and this higher voltage can damage DC
fed electronic loads. Also, equalization will not be fully effective if
additional loads are drawing current from the batteries at that time.
e) Be sure to check battery electrolyte level. Fill only with distilled water if
the electrolyte level is low.
f) Use a battery hydrometer to measure specific gravity of each cell.
For lead-acid batteries that are fully charged, the reading should be
approximately 1.265 (consult your battery manufacturer for the exact
value).
g) Equalization is needed if one or more cells have substantially lower
specific gravity than the others.
equalization Procedure
To start the equalization charging cycle, the G4 must already be in
operation in the “Utility or Generator Mode”.
The G4 has an option to manually equalize the batteries, if desired.
equalization voltage is programmable.
Please see details under
Section 7 “Setting Menu & Screens, Screen 8,” page 42.
As explained under heading "4 Stage Charging Profile in Manually
Activated Equalization Mode" on page 16, G4 Series uses Adaptive
Charging Algorithm for the Equalization Cycle that automatically
computes the Equalization time.
Equalization can be switched on or switched off
manually
with the help
of the Control Panel as follows:
•
Switching on equalization:
To switch ON, press the “Enter” and
“Down” Keys simultaneously for 2 seconds. Equalization will be
carried out at the programmed voltage selected through “SCREEN 8,
page 42".
•
Switching oFF equalization:
Pressing any Key for 2 sec will force
equalization (if in progress) to switch OFF. When switched OFF in
this manner, equalization for the balance period of the programmed
duration of equalization will not be carried out.
As explained in detail under heading "4 Stage Charging Profile in
Manually Activated Equalization Mode" on page 17, when equalization
is initiated manually, the charger will first execute Bulk Stage followed by
Boost (Absorption) Stage. On completion of Boost Stage, the charger will
execute Equalization Stage. After completion of Equalization Stage, the
charger will enter Float Stage.
The transitions will be as follows:
• Bulk Stage (Constant Current)
Boost (Absorption) Stage
(Constant voltage)
Equalization Stage (Constant voltage)
Float stage (Constant voltage).
The following screens will be display the stage the in which the charger
is during the time equalization is in progress.
When in Bulk Stage during Equalization Mode
B
a
t
E
q
u
a
l
i
z
a
t
i
o
n
x
x
.
x
v
d
c
B
U
l
k
SECTION 8 |
Operation
Processus d'Égalization -
Consignes de sécurités
ATTENTION!
Veuillez noter que l'égalisation produise de
l'hydrogène et de l'oxygène, mélange de gaz
explosif. Il faut assurer qu'il y a suffisament de
ventilation, où la batterie est installée, pour
disperser le gaz pendant l'égalisation.
!
ATTENTION!
Des batteries scellées (AGM) ou cellulles gelées
devrait jamais être égalisées. Elles peuvent
échouer, si elles sont égalisées. Un règle
général, ne jamais égaliser une batterie sauf
si elles ont des capuchons amovible, ventillée,
afin que les cellules puisses ajouter de l'eau
aux cellules de la batterie.
