Nortec UL60 - Program 419: Maintenance Pb Battery (Free Input)

9 Tabular overview of the program procedures Maintenance
© Nortec Electronics 2018 91
9.5.5 Program 419: Maintenance Pb battery (free input)
19: Pb battery (free input)
 select Batteryprocessing: 
P4: Maintenance
Enter:
 Nominal voltage
 Rated capacity
 Discharging current C
1
, C
2
, C
5
, C
10
or C
20
 Final discharging voltage
 Final charging voltage
 Charging current
Step 1:
Precharge with 2.4 V × number of cells until charging current of 0.25 C
1
is reached.
Step 2:
I-charge until the charging voltage × number of cells is reached.
Step 3:
U-charge with charging voltage × number of cells until current is decreased to 0.04 C
1
.
Step 4:
Discharging with discharging current to final charging voltage × number of cells.
The here detected capacity will be used to ascertain the effective capacity.
Step 5:
I-charge
Step 6:
U-charge
End of program
Display battery evaluation:
C>80%:BATTERY IS OK
or
C>60%:BATTERY FOR UNCRITICAL USE
or
C<60%:BATTERY WITH RECORD TAKE DISCHARGED BATTERY OUT OF SERVICE
Time monitoring:
Precharge maximum 2 hours, I- and U-charge maximum 8 hours, capacity maximum 1.5 × C