Nortec UL60 - Page 102

9 Tabular overview of the program procedures Maintenance
102 © Nortec Electronics 2018
Step 1:
Charge with constant current main charge until charging voltage of 1.55 V × number of cells is
reached.
Thereafter an accustic signal requests to measure the single cells voltages.
If a voltage is below 1.55 V, charging continues for 3 minutes and there is a renewed request for cell
voltage measurement, otherwise proceed to step 2.
If the number of measured cells does not match the number of cells, eg. perhaps because a cell was
measured twice. In this case, the program can not proceed automatically and prompt the user to de-
cide whether all cells have> 1.55 V. Enter: 1 = yes 0 = no.
Step 2:
Topping charge with 0.4 × charging current main-charge for 1 hour.
15 minutes before the end of the topping charge a signal requests to control the electrolyte level.
In case no automatic cell tester is connected:
Before the end of the topping charge a signal requests the measurement of single cells voltages.
The further steps are carried out only if the following conditions are met:
- All cell voltages are above 1.55 V.
- No cell voltage is above 1.75 V.
Step 3:
Discharge with C
1
for 60 minutes or one cell has reached 1 V.
In case no automatic cell tester is connected:
After 51 and 60 minutes a signal requests for measurement of single cells voltages.
Otherwise:
Cell measurement is performed automatically once a cell has fallen below 1.0V.
The further steps are carried out only if the following conditions are met:
- All cell voltages during the 51 minutes measurement above 1.00V.
Otherwise
WARNING NOTE: „Battery discharged “
Step 4:
8 hours break.
The message is displayed:
„wait 8 hours. skip waiting time possible: press .“
Step 5:
Charge with constant current main charge until charging voltage of 1.55 V × number of cells is
reached.
Thereafter an accustic signal requests to measure the single cells voltages.
If a voltage is below 1.55 V, charging continues for 3 minutes and there is a renewed request for cell
voltage measurement, otherwise proceed to step 2.
If the number of measured cells does not match the number of cells, eg. perhaps because a cell was
measured twice. In this case, the program can not proceed automatically and prompt the user to de-
cide whether all cells have> 1.55 V. Enter: 1 = yes 0 = no.
Step 6:
Topping charge with 0.4 × charging current main-charge for 2 hours.
15 minutes before the end of the topping charge a signal requests to control the electrolyte level.