EEC ESD-140, Руководство по эксплуатации

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Exit key
The “Exit” soft key is used to return to the Test Parameter Review screen and the
Perform Tests screen.
4.3.2 Test Parameters
Use the directional soft keys, “

,

” to navigate the test parameters during reviewing
and editing. The directional soft keys will change depending on which parameter the
cursor is pointing to.
Current : The Current that is applied between the Current and Return lead during a
ground bond test.
Max-Limit : A maximum resistance threshold that when exceeded triggers a failure.
Min-Limit : A minimum resistance threshold that when not exceeded triggers a failure.
Dwell Time : A length of time that is allowed for the set point current to be applied.
Connect : This function when turned ON will connect or link the current step to the
next step. The third step in a Memory will not have this function because it is the last
step of the Memory location.
Offset
: The Offset function may be used to compensate for test lead and test fixture
resistance during the test. Using the up and down arrow keys, scroll the cursor to the
Offset parameter and press the “Edit” soft key. 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 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.
4.3.3 Default Test Parameters
The following table is a listing of the Default Parameters in the ESD. These
parameters may be programmed to all of the memories and steps by pressing the two
bottom soft keys and powering the instrument at the same time. The Default
Parameters are as follows: