Keithley 6220 DC, User Manual, Page: 71 / 171

4-6 Sweeps Model 6220/6221 User’s Manual
Return to Section 4 topics
Performing a staircase sweep
1. Configure source functions :
a. If desired, set the bias current (output current prior to the start of the
sweep) by pressing the DC key and then setting the current to the
desired value.
b. Select the compliance display field, then set the voltage compliance as
appropriate for expected sweep parameters.
2. Configure the sweep as follows :
a. Press CONFIG then SWP to enter the sweep configuration menu.
b. Select TYPE, then press ENTER.
c. Select STAIR or LOG, then press ENTER to choose a linear staircase
sweep.
d. For STAIR sweeps, enter the desired START, STOP, STEP, and DELAY
values. For LOG sweeps, enter the desired START, STOP, NO OF
POINTS, and DELAY values.
e. From the CONFIGURE SWEEPS menu, select SWEEP-COUNT, press
ENTER, then choose FINITE or INFINITE as desired.
f. Again from the CONFIGURE SWEEPS menu, choose
SOURCE-RANGING, press ENTER, then select BEST, AUTO, or
FIXED as appropriate.
g. From the CONFIGURE SWEEPS menu, select COMPLIANCE-
ABORT, press ENTER, then choose to abort (YES) or not to abort (NO)
the sweep if compliance is reached while the sweep is in progress.
h. Press EXIT to return to normal display.
3. Run sweep :
a. Press the SWP key to arm the sweep. The output will turn on.
b. Press TRIG to start the sweep.
c. Press EXIT to abort the sweep before it is finished.
d. Turn the output off by pressing the ON/OFF OUTPUT key when the
sweep is finished.