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2600AS-901-01 Rev. B / September 2008
Section 20: Calibration
Series 2600A System SourceMeter® Instruments Reference Manual
k.
Send the source calibration command using the range, zero and +FS multimeter read-
ings, and zero and +FS source values for the parameters:
smua.source.calibratei(range,src_Z,DMM_Z_rdg, src_FS,DMM_FS_rdg)
Where:
range
-- present calibration range
src_Z
-- +zero 2600A source output value
DMM_Z_rdg
-- +zero DMM measurement
src_FS
-- +FS 2600A source output value
DMM_FS_rdg
-- +FS DMM measurement
Typical values for the 1A range:
smua.source.calibratei(1,1e-10,1e-4,0.9,0.88)
l.
If this step is not on the CALA sense mode, send the measure calibration command
using the multimeter and Series 2600A readings, and range setting for the parameters:
smua.measure.calibratei(range,Z_rdg,DMM_Z_rdg,
FS_rdg,DMM_FS_rdg)
Where:
range
-- present calibration range
Z_rdg
-- +zero 2600A measurement
DMM_Z_rdg
-- +zero DMM measurement
FS_rdg
-- +FS 2600A measurement
DMM_FS_rdg
-- +FS DMM measurement
Typical 1A range values:
smua.measure.calibratei(1,1e-5,1e-4,0.89,0.88)
m.
Select negative polarity, then set the source output to the negative zero value, for exam-
ple:
smua.cal.polarity = smua.CAL_NEGATIVE
smua.source.leveli = -1e-10
n.
Turn on the output:
smua.source.output = smua.OUTPUT_ON
o.
Allow the readings to settle, then get both the multimeter and Series 2600A current read-
ings at the negative zero full-scale value (the Series 2600A measurement is not neces-
sary 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
Series 2600A:
Z_rdg = smua.measure.i()
p.
Turn off the output:
smua.source.output = smua.OUTPUT_OFF
q.
Set the source output to the negative full-scale value, for example:
smua.source.leveli = -0.9
r.
Turn on the output:
smua.source.output = smua.OUTPUT_ON
s.
Allow the readings to settle, then get both the multimeter and Series 2600A current read-
ings at the negative full-scale output value (the Series 2600A measurement is not neces-
sary 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
Series 2600A:
FS_rdg = smua.measure.v()
t.
Turn off the output:
smua.source.output = smua.OUTPUT_OFF
