9 Tabular overview of the program procedures
Maintenance
92
©
Nortec Electronics 2018
9.5.6
Program 420: Maintenance NiCd battery (manufacturer independent)
20: NiCd battery (manufacturer independent)
select Batteryprocessing:
P4: Maintenance
Enter:
Number of cells
Rated capacity
Step 1:
Discharging with C
1
for 6 minutes.
Step 2:
Charging with C
1
until the charging voltage of 1.55 V × number of cells is reached.
Step 3:
Topping charge C
10
for 1.5 hours.
Step 4:
Discharging with C
1
to 1 V for each cell. The here detected capacity will be used to ascertain the ef-
fective capacity.
Step 5:
Charging with C
1
until a charging voltage of 1.55 V × number of cells is reached.
Step 6:
Topping charge C
5
for 1,5 hours.
In case no automatic cell tester is connected:
15 minutes before the end of the topping charge a signal requests for measurement of
single cells voltages and to control the electrolyte level.
Otherwise:
15 minutes before the end of topping charge you are asked to control the electrolyte level.
End of program
Display battery evaluation:
C>80%:BATTERY IS OK
or
C<80%:BATTERY WITH RECORD TAKE DISCHARGED BATTERY OUT OF SERVICE
Time monitoring:
Charging maximum 72 minutes; capacity maximum 1.7 × C
Voltage monitoring:
Voltage decreased 30 mV/cell (minimum 50 mV) during charging error message:
minus delta U detected.
