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4.3.2. DC Withstand (Models 3665 and 3670)
From the Test parameter review screen (refer to section 4.2.1), scroll the cursor, using the up
and down arrow soft keys, to the Test Type parameter. Press the Edit softkey. Select the DC
Withstand parameter using the “+” and “-” soft keys and press the Enter soft key. The default
DC Withstand parameters will now be loaded into the currently selected memory and step.
Press the Enter softkey to accept the parameters (or press Esc to escape). The DC Withstand
parameter review screens will now be displayed. The DC Withstand parameter review screens
will appear as follows:
From the DC Withstand setting screen the following parameters may be controlled: Voltage,
Max-Limit, Min- Limit, Ramp Up, Dwell Time, Ramp Down, Arc Sense, Ramp-HI, Arc
Detect (ON/OFF), and Continuity (ON/OFF).
Offset
When the Continuity is selected ON, the Offset function may be used to compensate for lead
and test fixture resistance during the continuity test. Using the up and down arrow keys, scroll
the cursor to the Offset parameter and press the Edit softkey. You may now manually or
automatically set an Offset value.
To manually set the Offset, use the “+” and “-” soft keys to increase and decrease the
resistance value. Press the Enter soft key to accept the new value or press the Esc soft key to
escape from the edit.
To automatically set an Offset value, set the output voltage, current, and frequency to the
values that will be used on the DUT and connect the test cables or test fixture with fixturing to
the instrument. Next, short circuit the ends of the test cables and press the “TEST” button.
The instrument will now read the lead resistance and update Offset parameter automatically.
Press the Enter soft key to accept the new value or press the Esc soft key to escape from the
edit.
Voltage 1200V
^
Max Lmt 7500uA
Min Lmt 100uA
v
Ramp UP 999.9s
Dwell 999.9s
Ramp DN 999.9s
<More>
Continuity ON
^
v
Connect ON
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