4 STAGE CHARGING
SMART AUTOMATIC 12/24 VOLT
SOLAR CONTROLLER
P/No. SC220, SC245, SC260
2
IMPORTANT SAFETY INFORMATION
Please read this instruction thoroughly before installing the product.
WARNINGS
• This charger is designed for indoor use only
• Do not disassemble the controller. Take to a qualified person if the unit requires repairing
• Lead acid batteries can be dangerous. Ensure no sparks or flames are present when working
near batteries
• Eye protection should always be used. Never short circuit the battery
• Given sufficient light solar panels always generate energy even when they are disconnected
• Accidental ‘shorting’ of the terminals or wiring can result in sparks causing personal injury or
a fire hazard. We recommend that you cover up the panel(s) with some sort of soft cloth so
you can block all incoming light during the installation. This will ensure that no damage is
caused to the Solar Panel or Battery if the wires are accidentally short circuited
• Always install a battery fuse on each circuit including the solar controller
• Do not reverse connect the wires to the solar panel or battery
MOUNTING THE DEVICE
The Solar Controller is mounted as below.
The quickest and easiest way to mount the unit is to use self tapping screws and mount the
unit via the four screw holes located on the mounting wings, affix to a flat surface.
12/24 Volt
45 AMP
SOLAR CHARGE CONTROLLER
MENU SET
USB
5V Max. 2.4A
Temp.
Sensor
3
FEATURES
• 4 Stage charging ensures the battery is charged to the optimum level (Bulk, Absorption,
Equalisation and Float)
• Advanced MCU control pulse width modulated (PWM) technology, high efficiency operation
• Programmable for Gel, AGM and Conventional lead-acid (WET) Batteries
• Built in regulator to prevent your battery from being overcharged. Overcharging occurs when
the charge voltage is unregulated. This can result in premature battery failure
• In built regulator prevents your battery from being under charged, in the solar energy field,
battery undercharge often occurs, especially on some conventional Lead Acid batteries; the
unit provides an automatic equalization feature for deeply drained conventional Lead Acid
and AGM batteries, as well as provides a cycling automatic equalizing feature every 28 days
• The Smart Controllers can be connected to the battery permanently to keep the battery fully
charged by using a process called “floating”. This means the controller will stop charging
when the battery is full and will automatically start charging the battery as required.
This process will also reduce water loss and help prevent the battery from ‘drying out’
• Protects your battery from discharge at night. Under low light or no light conditions the solar
panel voltage could be less than the battery voltage. The unit contains a special circuit which
prevents current flowing back from the battery and into the solar panel
– LCD display design, dynamically displays device’s operating data and working condition
– Dual USB ports (5VDC/2.4A combined Max output) allow power supply charge for
electronic equipment
• Built-in external battery temperature sensor. Optional sensor probe also available
(P/No. SC3TMP)
• Multi charging protections against reverse polarity, short circuit, over temperature,
over voltage, etc.
• IP Rating: IP30
USB Output
Ports
LCD
Menu
Button
Temperature
Sensor Connection
PV
Terminals
Battery
Terminals
Load
Terminals
Set Button
4
WIRING CONNECTIONS
1. Connect components to the charge controller in the sequence as shown above and pay
particular attention to the “+” and “-”.
Please don’t insert the fuse or turn on the breaker during the installation.
When disconnecting the system, the order will be reversed.
2. Power on the controller, check the LCD screen turns on. If the screen does not power up,
refer to page 9 TROUBLESHOOTING.
Always connect the battery first, in order to allow the controller to recognize the system
voltage.
3. The battery fuse should be installed as close to battery as possible. The suggested distance is
within 150mm.
4. The Smart Controller Range is a positive ground controller. Any positive connection of solar,
load or battery can be earth grounded as required.
NOTE: Please connect the inverter or other load that it has the large start current to
the battery rather than to the controller, if the inverter or other load is necessary.
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