2600AS-901-01 Rev. B / September 2008
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20-17
Series 2600A System SourceMeter® Instruments Reference Manual
Section 20: Calibration
u.
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
-- negative of the 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-5,-0.9,-0.892)
v.
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
-- negative of the 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-4,-1e-5,-0.91,-0.892)
4.
Be sure to complete steps a through v for the 100nA to 1A ranges before continuing with 3A
and 10A range calibration (Model 2601A/2602A) or 1.5A and 10A range calibration (Model
2611A/2612A/2635A/2636A).
5.
Change connections as shown in
(use 4-wire connections to the 0.5
Ω
resistor
as shown).
6.
Select the DMM DC volts function.
7.
Repeat steps a through v for the 3A and 10A ranges (Model 2601A/2602A) or 1.5A and 10A
ranges (Model 2611A/2612A/2635A/2636A). Compute the current reading from the DMM
voltage reading and characterized 0.5
Ω
resistance value: I = V/R.
8.
Select auto polarity mode:
smua.cal.polarity = smua.CAL_AUTO