8
Turn the power switch on the front of the unit on to energize the outputs.
If you wish to adjust the output voltage, first attach a good digital voltmeter to the output
terminals to monitor the voltage. Next, remove the cover plate (secured by 2 screws) to expose
the output adjust potentiometer. Reach in with a very small flat blade screwdriver to rotate
the potentiometer. Clockwise increases the output voltage, and counter clockwise decreases
it. When you are done, replace the cover plate and securely tighten the screws. Remove the
voltmeter from the output terminals.
Operation
Troubleshooting
If the load exceeds the continuous rating for too long a period, the internal temperature sensor
will cause the unit to stop boosting the input voltage until the unit has cooled down. After the
unit has cooled down, normal operation will resume.
If the input voltage drops below the specified minimum input, the unit will sound the alarm.
If the output voltage drops below the specified minimum, the unit will sound the alarm.
If the current demanded by the devices connected to the unit exceed the maximum current
rating, the fuse will blow.
If the fuse blows with no load connected, check that the power leads are connected to the
battery with the correct polarity; if they are then the unit is damaged and must be returned for
repair.
