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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 return to the previous screen without saving.
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 and all test
fixturing to the instrument. Next, connect the ends of the test cables together 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 exit without saving.
NOTE: do not connect the DUT to the instrument when performing an offset.
This will create erroneous results when a test is performed.
Insulation Resistance (Model 3770 only)
From the Test Parameter Review screen scroll the cursor using the “” and “” soft
keys to the Test Type parameter. Press the “Edit” soft key. Select the IR parameter
using the “+” and “-” soft keys and press the “Enter” soft key. The default IR
parameters will now be loaded into the currently selected memory and step. Press
the “Enter” soft key to accept the parameters or press the “Esc” soft key to exit without
saving. The IR Parameter Review screen will appear as follows:
From the Insulation Resistance Parameter Setting screen the following parameters
may be selected for editing: Voltage, Max-Limit, Min- Limit, Ramp Up, Delay Time,
and Ramp Down.
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