4.8.1Charge Current Adjustment
ADJUSTMENT STANDARD: dc--1000 ± 20 µA
WARNING: Make sure that the machine is unplugged before connecting
the multimeter on the charge/bias/grid power pack.
Pay extreme attention when connecting the multimeter. The
potential of the charge corona terminal becomes --5kV.
1. Connect all the terminals of the current measurement drum to the machine
ground.
2. Disconnect the charge corona terminal of the charge/bias/grid power pack.
3. Connect the multimeter as shown in the illustration.
4. Set the multimeter range at dc 2 mA.
5. Plug in the machine and turn on the main switch.
6. Access SP mode and select No. --10.
7. Press the key to turn on the charge corona.
8. Check the multimeter. If the voltage is not that of the standard voltage, press
the key and then change the voltage using and
keys so that the charge current is dc --1000 ± 20 µA.
9. If the voltage is within that of the standard voltage, press the key.
A163 5-22 SM
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