MW229 Function

MW229
Function
MW229 is a polarity checker for determining the 3-15V output voltage polarity of AC/DC
power supply or charger. It is used for checking the output voltage polarity of the
following DC plugs; 3.5 X 1.35mm; 5.5 X 2.1mm and 3.5mm
Technical Date
Input voltage 3-15V AC/DC
Instruction
1. Connect the power supply or charger with mains.
2. Insert output plug of power supply or charger into the corresponding jack on the
polarity checker.
3. The red LED, against the mark of “center +” on the housing of the unit, lights to
indicate that output voltage is DC and the center is positive
4. The red LED, against the mark of “center –“ on the housing of the unit, lights to
indicate that output voltage is DC and the center is negative
5. The two red LED light to indicate that output voltage is AC.
6. Disconnect the power supply when not in use.
Warning
1. For indoor use only
2. Do not connect it with power supply of more than 15V output voltage

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