6CP200/100-10
5-1
SECTION 5: OPERATIONAL VERIFICATION PROCEDURE
1. Make sure that Main Power Circuit Breaker on the Control Panel is in OFF position. Ground output of high
voltage unit.
2. Connect high voltage cylinders for series operation. (See drawing #763992894)
3. Make sure that all electrical connections have been properly made between the Controls and High Voltage
Unit, and Divider, including grounds. Remove Ground from HV Transformer output. There is NO
connection to the high voltage output at this time (except high voltage divider). There must be adequate
clearance from the High Voltage Unit to allow voltage to be raised safely.
4. Connect Main Input Power Cable to Controls and to Power Source. Switch the Main Power Circuit Breaker
on the Control Panel to On position. Main Power indicator lamp should illuminate. Check that the
Emergency Off button is pulled up, Voltage Control is at Zero, Reset Lamp is Off, and EXT INTLK CKT is
complete or has shorting jumper in place. HV Off lamp should be illuminated.
5. Press HV On switch. Indicator lamp should illuminate. Press the HV Off switch. HV On indicator lamp
should extinguish and HV Off / Ready lamp should illuminate.
NOTE: The following conditions must be met before High Voltage will engage: External Interlock loop
must be closed, Emergency Off switch must be closed (mushroom button up), Overload Reset Lamp must
be off, and Voltage Control at Zero.
6. Set Measurement Divider Switch to 100 kV / 100 mA
7. Press the HV On switch.
8. Manually raise the Voltage Control dial on the Control Panel to approximately fifty percent (50%).
Voltmeter should indicate voltage change, and show approximately 95 to 105 kV.
NOTE: 100kV voltmeter range is calibrated at 80% of range. The 100kV range may not be accurate
above 100% of range.
9. Select 200 kV / 50 mA on Measurement Divider Selector Switch. At 50% on Voltage Control Dial,
voltmeter should read approximately 95 to 105 kV.
10. Return Voltage Control to Zero. Press HV Off switch.
11. Turn Main Power Circuit Breaker off, and connect a short between the 200kV High Voltage Output and
Ground. Measurement Divider Switch is to be set at 200 kV / 50 mA.
12. Set Overcurrent Trip to low (1) setting.
13. Turn Main Power Circuit Breaker on. Press HV On switch and slowly raise voltage with the dial on the
Control Panel. Output Current Meter will indicate, and at approximately 10% of output current rating, the
High Voltage will trip off and the Overcurrent Indicator Lamp will illuminate. With the front panel Overload
Selector Switch set at 200 kV/50 mA, the trip point should be at approximately 5 mA.
14. Return Voltage Control to zero. Press HV Off Switch. Turn off Main Power Circuit breaker.
WARNING:
This equipment should only be used by personnel familiar with High Voltage testing and safety
procedures.
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