2606B System SourceMeter® Instrument Reference Manual
Appendix B: Calibration
2606B-901-01 Rev. B / May 2018
B-19
src_FS
= The +FS 2606B programmed source output value
DMM_FS_rdg
= The +FS DMM measurement
Typical values for the 1 V range:
smua.source.calibratev(1, 1e-30, 1e-5, 0.9, 0.903)
12. If this step is not on the CALA sense mode, send the measure calibration command using the
multimeter and 2606B readings, and the range setting for the parameters. For example:
smua.measure.calibratev(
range, Z_rdg, DMM_Z_rdg, FS_rdg, DMM_FS_rdg
)
Where:
range
= The present calibration range
Z_rdg
= The +zero 2606B measurement
DMM_Z_rdg
= The +zero DMM measurement
FS_rdg
= The +FS 2606B measurement
DMM_FS_rdg
= The +FS DMM measurement
Typical 1 V range values:
smua.measure.calibratev(1, 1e-4, 1e-5, 0.92, 0.903)
13. Select negative polarity, then set the source output to the negative zero value, for example:
smua.cal.polarity = smua.CAL_NEGATIVE
smua.source.levelv = -1e-30
14. Turn on the output:
smua.source.output = smua.OUTPUT_ON
15. Allow the readings to settle, then get both the multimeter and 2606B voltage readings at the
negative zero value (the 2606B 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 2606B:
Z_rdg = smua.measure.v()
16. Turn off the output:
smua.source.output = smua.OUTPUT_OFF
17. Set the source output to the negative full-scale value, for example:
smua.source.levelv = -0.9
18. Turn on the output:
smua.source.output = smua.OUTPUT_ON
19. Allow the readings to settle, then get both the multimeter and 2606B voltage readings at the
negative full-scale output value (the 2606B 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 2606B:
FS_rdg = smua.measure.v()
20. Turn off the output:
smua.source.output = smua.OUTPUT_OFF
21. Send the source calibration command using the range, -zero and -FS multimeter readings, and -
zero and -FS source values for the parameters:
smua.source.calibratev(
-range, src_Z, DMM_Z_rdg,
src_FS, DMM_FS_rdg
)
Where:
-range
= The negative of the present calibration range
src_Z
= The -zero 2606B programmed source output value
DMM_Z_rdg
= The -zero DMM measurement
src_FS
= The -FS 2606B programmed source output value
DMM_FS_rdg
= The -FS DMM measurement