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Model 2657A High Power System SourceMeter® Instrument Reference Manual
Appendix B: Calibration
2657A-901-01 Rev. B/December 2012
B-25
Where:
-range
= The negative of the present calibration range
Z_rdg
= The -zero Model 2657A measurement
DMM_Z_rdg
= The -zero DMM measurement
FS_rdg
= The -FS Model 2657A measurement
DMM_FS_rdg
= The -FS DMM measurement
Typical Model 2657A 200 V range values:
smua.measure.calibratev(-200, -1e-5, -1e-4, -180.2, -179.8)
D. Be sure to complete each of the 22 steps of C for all 11 voltage steps in
(on page
B-17) before performing current calibration.
E. Select automatic polarity mode:
smua.cal.polarity = smua.CAL_AUTO
Step 3. Current calibration adjustment
A. Connect the Model 2657A SMU to the digital multimeter (see the following figure), and then select
the multimeter DC current function.
B. Send this command to initialize current calibration:
smua.source.func = smua.OUTPUT_DCAMPS
Figure 131: Connections for current calibration
LINE RATING
100-240 VAC
50, 60 Hz
350 VA MAX.
LINE FUSE
SLOWBLOW
5.0 A, 250 V
NO INTERNAL OPERATOR SERVICEABLE PARTS,
SERVICE BY QUALIFIED PERSONNEL ONLY.
REPLACE FUSE WITH SAME TYPE AND RATING.
WARNING:
INPUT/OUTPUT CURRENT: 120 mA MAX.
RS-232
DIGITAL I/O
LAN
!
IEEE-488
!
!
SENSE
LO
HI
LO
GUARD
SENSE
HI
LO
3030 VDC
MAX.
250 V
MAX.
LO
HI
Input
LO
Model 2657A
Amps
Test fixture
Digital multimeter
Pin 22 = +5 V
Pin 24 = Interlock (INT)
Содержание 2657A
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