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12 Enhanced Ramping
AC Ramp Down
The AC ramp down feature allows the AC voltage applied to the DUT, to be reduced linearly
over a specified period at the end of a hipot test. There are three set up screens associated with
this feature that will allow control of Ramp-Up, Dwell, and Ramp-Down.
The setup screens will appear as follows:
Ramp Up = XXX.X s
Range : 0.1 - 999.9
Use the “Numeric” keys to enter the Ramp Up time setting, then press the “ENTER” key. The
program will store the Ramp Up Time setting and advance to the Dwell Time parameter
automatically. The unit is “second” and 0.1 second per step.
Dwell Time= XXX.X s
Range : 0.3 - 999.9 0=Constant
Use the “Numeric” keys to enter the Dwell time setting, then press the “ENTER” key. The
program will store the Dwell Time setting and advance to the Ramp Down Time parameter
automatically. The unit is “second” and 0.1 second per step.
Ramp Down = XXX.X s
Range : 0.0 - 999.9
Use the “Numeric” keys to enter the Ramp Down time setting, then press the “ENTER” key.
The program will store the Ramp Down Time setting and advance to the Frequency parameter
automatically. The unit is “second” and 0.1 second per step.
Press the “EXIT” key to exit from the setting mode to the operation mode if all
parameters have been set.
Displayed messages for Enhanced AC Ramping
At the beginning of AC Withstand Voltage test when the voltage begins to ramp but before the
meter readings are taken, the display will show:
ACW Ramp-up XXX.X s
MXX-X - . - - KV - - . - - mA
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