Keithley 2182, User Manual, Page: 103 / 339

Ratio and Delta 5-13
Step 8 Turn on the SourceMeter output and reset the trigger model.
A. Turn on the output by pressing the OUTPUT ON/OFF key (“ARM” annunciator
turns on).
B. Reset the trigger model as follows:
1. Press CONFIG and then TRIG to access the trigger configuration menu.
2. Select HALT to place the SourceMeter in the idle state (“ARM” annunciator
turns off).
3. Press EXIT to return to the normal display.
Step 9 Set up the Model 2182 to store readings in the buffer (optional).
On the Model 2182, press STORE and set the number of Delta readings to store in the buffer.
Press ENTER to enable the buffer.
Step 10 Start the sweep from the SourceMeter.
A. To arm the sweep, press SWEEP.
B. To start the sweep, press TRIG.
At the end of each 2-point sweep, a Delta reading will be calculated and displayed, and stored
in the buffer if it is enabled.
NOTES • A sweep in progress can be aborted by pressing EXIT on the SourceMeter.
• If you are done sweeping, turn off the source by pressing the ON/OFF
OUTPUT key on the SourceMeter. Turning the source off prevents heat from
building up in the DUT.
• Delta readings stored in the buffer can be accessed by pressing RECALL on
the Model 2182.
Step 11 Repeating the sweep.
A. On the Model 2182, press EX TRIG twice to disable and then re-enable external
triggering. The “TRIG” annunciator indicates that the Model 2182 is in the external
triggering mode.
B. Repeat Steps 8, 9, and 10. However, if the SourceMeter output is already on, skip
Step 8A.