Product Manual

1312
Power Supply Operation (PWS)
The PWS1050/PWS1550 series power supplies are designed for simple and intuitve operation.
Before operating the unit, it must be properly installed and connected. See Installation for
more information.
TO POWER A LOAD
1. Move the Power Switch to ON. The alarm buzzer will sound and the LOW VOLTAGE
OUTPUT LED will glow red briey, then the POWER LED will glow green.
2. The POWER LED will glow green and the unit will charge the battery at the voltage and
current listed on the label.
TO ADJUST THE OUTPUT VOLTAGE
The Output Voltage Adjust can be use to adjust the charging (oat) voltage ±1.0V from the
unit’s rated output voltage in order to ne-tune its charging capabilities.
1. On W-series and Y-series models the Output Voltage Adjustis protected by an O-ring
sealed hexagonal plug. This plug can be removed using a 5/8ths inch or 16mm wrench.
2. Move the Power Switch to ON.
3. Rotate the output voltage adjustment potentiometer on the front panel.
4. Rotating the potentiometer clockwise increases the output voltage; counterclockwise
descreases it.
5. Using a voltmeter or multimeter, check the voltage at the Output Connection. Adjust until
the voltage reading is suitable. If the unit has the optional digital meter, that can be used
to read the output voltage instead.
6. Replace the hexagonal plug to return the unit to water resistant condition.
TO END OPERATION
1. Move the Power Switch to OFF.
2. Wait for all the LEDs stop glowing.
3. Once all of the LEDs are off, it is safe to disconnect the unit from the power source and
battery. The unit is now ready for storage or service.