Operation - Projecta SC420/ND Manual

6. Operation

6.1 Voltage auto-recognition
System startup: When the battery is connected, the system will automatically recognise the system voltage
and briefly display this on the LCD display.
6.2 LCD Display Cycle
Short press the touch screen button will cycle through the following four displays:
- Battery Voltage
- Battery SOC
- Temperature
- Error Code
To adjust the temperature scale (From °C to °F and vice-versa):
1. While the display is showing the temperature, long press the touch screen button to enter Set mode.
2. Short press the button to select the scale.
3. Long press again to exit and save the settings.
6.3 Charging Stages
Stage 1
Bulk Charge (Stage 1) - Utilising MPPT technology, the controller will deliver maximum current until
batteries rise to boost level.
Boost Charge (Stage 2) - Once the battery is almost charged, voltage is held constant for 2 hours.
Equalization Charge* (Stage 3) - Only applicable to Flooded/WET and AGM mode. Every 30 days, it will
skip boost and automatically run equalization to rejuvenate the internal battery cells.
Float Charge (Stage 4) - Only applicable to non-lithium batteries. When the battery is fully charged, it will
reduce the voltage to 13.8V to keep the battery topped up.
Stage 3
Stage 2
Stage 4