20-12
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2600AS-901-01 Rev. B / September 2008
Section 20: Calibration
Series 2600A System SourceMeter® Instruments Reference Manual
Typical values for the Models 2611A/2612A/2635A/2636A 2V range:
smua.source.calibratev(2,1e-10,1e-5,1.8,1.802)
12) 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.calibratev(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 Model 2601A/2602A 1V range values:
smua.measure.calibratev(1,1e-4,1e-5,0.92,0.903)
Typical Model 2611A/2612A/2635A/2636A 2V range values:
smua.measure.calibratev(2,1e-4,1e-5,1.82,1.802)
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-10
14) Turn on the output:
smua.source.output = smua.OUTPUT_ON
15) Allow the readings to settle, then get both the multimeter and Series 2600A voltage
readings at the negative zero value. (The Series 2600A 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 Series 2600A:
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
(Models 2601A/2602A)
smua.source.levelv = -1.8
(Models 2611A/2612A/2635A/2636A)
18) Turn on the output:
smua.source.output = smua.OUTPUT_ON
19) Allow the readings to settle, then get both the multimeter and Series 2600A voltage
readings at the negative full-scale output value (the Series 2600A 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 Series 2600A:
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
-- negative of the present
-- calibration range
src_Z
-- zero 2600A source output value
DMM_Z_rdg
-- zero DMM measurement
