Sinoboom GTJZ0612E, Руководство по обслуживанию

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© Jul.2020 5-14 GTJZ0612E&0812E&1012E&1212E Maintenance Manual
MAINTENANCE PROCEDURES
Percentage Charging
（ % ）
Specific Gravity
Open-Circuit Voltage (V)
Battery Cell
6V 12V
20 1.098 1.943 5.83 11.66
10 1.073 1.918 5.75 11.51
• Recharge the battery in quick mode when the
battery level is 70% or lower.
• Recharge the battery before use after removing it
from storage.
• Storage in hot environments (above 32°C [90°F]):
During storage, do not expose the battery directly to
the heat source. The self-discharge process will
accelerate in warmer temperatures. If storing the
battery in hot temperatures or during hot weathe
monitor the specific gravity or the voltage more
frequently (about every 2 - 4 weeks).
• Storage in cold environments (below 0°C [32°F]):
During storage, do not store the battery in a place
with an estimated temperature reaching the freezing
point; if the battery has not been fully charged, it
may freeze in cold temperatures. If storing the
battery in cold temperatures or during cold weather,
fully charge the battery. This point is very
important.
TROUBLESHOOTING
Follow the battery testing guidelines to determine if the
battery needs to be replaced.
Voltage Test When Charging
1. Disconnect and reconnect the DC plug to restart the
charger.
2. Record the current in the last half an hour (if
possible) and measure the voltage of the battery
rack when charging.
3. At the end of charging, check if the current is lower
than 5A and the voltage of the battery rack is higher
than the following values:
56V for 48V system; 28V for 24V system; 14V for
12V system or 7V for 6V system; if so, proceed to
the next step. Otherwise, inspect whether the
output of the charger is correct and recharge the
battery as required. If the voltage of the battery rack
is still very low, a problem may exist with the
battery.
4. Measure the voltage of each individual battery
when the battery is in the charging state. If the
voltage of any battery is lower than the following
values, a problem could exist with the battery:
7V for 6V battery, the voltage difference between
the battery and any other batteries in the battery
rack is larger than 0.5V; 14V for 12V battery, the
voltage difference between the battery and any
other batteries in the battery rack is larger than
1.0V.
Test of Specific Gravity
1. Fill and drain the specific gravity hydrometer 2-3
times. Then, obtain a sample from the battery.
2. Measure the specific gravity of all battery cells.
3. When the temperature is above 27°C (80°F), add
0.004 to correct the reading of the specific gravity
every 5°C (40°F) higher. When the temperature is
below 27°C (80°F), deduct 0.004 to correct the
reading of the specific gravity every 5°C (40°F)
lower.
4. If the specific gravity of each battery in the battery
rack is lower than 1.250, the battery rack may not
be sufficiently charged. Recharge the battery rack.
5. If the specific gravity difference between any battery
in the battery rack is over 0.050, equalize this
battery rack.
6. The battery in the battery rack may have a problem
if the difference still exists.
Open-Circuit Voltage Test (Rarely Used)
1. To obtain an accurate voltage reading, do not use
the battery for at least 6 hours, but, it is best not to
use the battery for 24 hours.
2. Measure the voltage of each individual battery.
3. Equalize the battery rack if the voltage of any
battery is 0.3V higher than that of other batteries in
the battery rack.
4. Re-measure the voltage of each individual battery.
5. The battery may have a problem if the voltage of
any battery is 0.3V higher than that of other
batteries in the battery rack.
There are other battery tests to evaluate battery
performance, such as discharge tests, that are not
described here.
HIGH-FREQUENCY BATTERY CHARGER
Relevant Technical Parameters:
• Input voltage: AC100 ~ 240V
• Output voltage: 24V
Precautions:
• Low-input voltage protection: The battery charger
will shut down when the input AC voltage is lower
than 85V. It will automatically resume charging
when the voltage becomes normal.
• Reverse-polarity protection: In case of the reverse
polarity of the battery, the battery charger will