Met1:
Power up the charger with 12V dc , no batt in it.
Use the RS232 connection to watch the voltage readings of ADC .I used "RealTem" software to do this.
http://realterm.sourceforge.net/.

Also connect an Digital Voltmeter on charger Output (Cathode of 1N5401 diode)
Adjust the 2k5 POT till readings from DV and RealTerm match .An error of adjustment of less then 90mV is quite OK.
This is the most accurate adjustment.


Met2: 
Feed 12V dc to the charger , no batt in it . 
Adjust the POT to min value.Display will read E . Slowly adjust the POT untill display show I , then go back a little till display shows again E . 
This method is less accurate but works just fine .

Now put 1 acc in and power up . 
The display will show for 2 sec the number of elements to be charged (in this case I and then discharge the acc till 1V (pulse discharging , aprox 300mA for 1 element , 500mA for 2 elements , 600mA for 3 or 4 elements ) . Remember to use 0.8ohmi /10W 1.25ohm/10w resistors .

Normal operation mode :
- first connect the rechargeable batteries to the charger
- power up charger
Reset = Power off charger