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Model 2601B-PULSE System SourceMeter Instrument Reference Manual Section 13: Calibration

2601B-PULSE-901-01A April 2020 13-27

B. Send the following commands to initialize voltage adjustment:

smua.cal.unlock("KI0026XX")

smua.reset()

smua.source.func = smua.OUTPUT_DCVOLTS

It is not necessary to set the measure range when following this procedure for adjustment because

the measure range is locked to the source range when measuring the source function.

C. Perform each adjustment for the voltage source and measure function step listed in Adjustment

overview (on page 13-22) as follows:

1. Select the range being adjusted with this command:

smua.source.rangev = range

2. Select the correct sense mode based on the adjustment step for the voltage source and measure

function from the step sequence, for example:

smua.sense = smua.SENSE_LOCAL

3. Select positive polarity, and then set the source output to the positive zero value. For example:

smua.cal.polarity = smua.CAL_POSITIVE

smua.source.levelv = 1e-30

4. Turn on the output:

smua.source.output = smua.OUTPUT_ON

5. Allow the readings to settle, then get both the multimeter and 2601B-PULSE voltage readings at the

positive zero value (the 2601B-PULSE measurement is not necessary if this step is being done on the

CALA sense mode). The two measurements should be made as close as possible in time. Use this

command for the 2601B-PULSE:

Z_rdg = smua.measure.v()

6. Turn off the output:

smua.source.output = smua.OUTPUT_OFF

7. Set the source output to the positive full-scale value for the present range, for example:

smua.source.levelv = 0.9

8. Turn on the output:

smua.source.output = smua.OUTPUT_ON

9. Allow the readings to settle, then get both the multimeter and 2601B-PULSE voltage readings at the

positive full-scale output value (the 2601B-PULSE measurement is not necessary if this calibration step

is being done on the CALA sense mode). The two measurements should be made as close as possible

in time. Use this command for the 2601B-PULSE:

FS_rdg = smua.measure.v()

10. Turn off the output:

smua.source.output = smua.OUTPUT_OFF

Tektronix Keithley 2601B-PULSE Reference Manual

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