AEMC 4500 User Manual
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Contents
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40 Digital Ground Resistance Tester Model 450012 V DCPower Supply BoardWing NutsShock-Absorbing LayerLengthwiseLocking ScrewsStress Relief PlateFigure 23• Disconnect the two wires which connect the battery to the powersupply board.• Replace the worn battery.• Connect the new 12V DC battery to the power supply board. Payclose attention to the polarities printed on the power supply board.12 V110V 220VSource Voltage SelectionSwitch (110V AC/220V AC)Power Supply Board12 V DC3.15 ASupply FuseFigure 245.2.6 Changing the Supply Voltage (110/220VAC)• Open up the Model 4500. Position the selector switch on the powersupply board (See Figure 24).• Set the plate (“11” in Figure 3) which indicates “220V AC” on one sideand “110V AC” on the other, to the selected voltage.• Reassemble the Model 4500. |
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