Installation
Using a Digital Voltmeter to Adjust Voltage Settings
A digital DC voltmeter (DVM) can be used to provide a more accurate setting of voltage parameters. Test points are provided at the
The potentiometers are equipped with removable knobs to prevent accidental
To test and adjust the voltage setting using a DVM:
1.Point the potentiometers to the
2.Connect a digital voltmeter from one of the common negative terminals on the circuit board and the small test point located to the left of each potentiometer at the nine o’clock position. See Figure
The test point provides a reading from 0 to 2 volts. (Multiply this value by “2” for
3.Add the value obtained in step 2 above to the lower value of the adjustment range/voltage scale being used.
For example for a
To set the BULK voltage to 14.4 volts:
1.Point the BULK potentiometer to the
2.Adjust the potentiometer until the DVM displays 1.4 volts (13.0 V + 1.4 V = 14.4 V).
For example for a
To set BULK voltage to 28.2 volts:
1.Point the BULK potentiometer to the
2.Adjust the potentiometer until the DVM displays 1.1 volts (1.1 x 2 [24 volt] = 2.2 + 26.0 = 28.2).
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