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Technical Information
Replacement
Replacement
General
Replacement controllers are available on advance exchange basis
through Agilent service/sales organization.
WARNING!
High voltage in the controller can cause severe injury or death. Before
servicing, turn power off and remove the power cable.
Troubleshooting
a
b
c
64/72
No current/voltage LED bar graph lit with mains power ON but
H.V. ON LED off (Mains LED on).
Verify mains connections and power fuses
Verify on P001 that pins 3-7 are shorted.
Verify the H.V. cable interlock
Vac Ion pump is operating at High pressure and only the first
LED is lit.
No high voltage output. Replace the unit.
Vac Ion pump operating at Low pressure and all LED are lit.
Switch power off and disconnect the high voltage cable.
Switch power on and verify that only one LED is lit. If this
happens the high voltage cable or the pump are shorted.
If not, replace the unit.
MicroVac Controller User Manual / 87-900-089-01 (G)
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