Keithley 2651A Reference Manual page 723

Model 2651A High Power System SourceMeter® Instrument Reference Manual
Step 2. Voltage calibration adjustment
A. Connect the Model 2651A to the digital multimeter using the 4-wire connections shown in the
figure below, and select the multimeter DC volts function.
B. Send the following commands in order to initialize voltage calibration:
smua.cal.unlock("KI0026XX")
smua.reset()
smua.source.func = smua.OUTPUT_DCVOLTS
C. Perform each calibration step listed for the voltage source and measure function in the
2651A step sequence
1. Select the range being calibrated with this command:
smua.source.rangev = range
It is not necessary to set the measure range when following this procedure for calibration because the
measure range is locked to the source range when measuring the source function.
2651A-901-01 Rev. A / March 2011
Figure 115: Connections for voltage calibration
Digital multimeter
Model 2651A
LINE FUSE
SLOWBLOW
5.0 A, 250 V
LINE RATING
100-240 VAC
50, 60 Hz
DIGITAL I/O
RS-232
500VA MAX.
IEEE-488 LAN
!
!
(on page B-19) as follows:
Input HI
Input
LO
S S
LO HI
SENSE/GUARD
S S
LO G G G G HI
NO INTERNAL OPERATOR SERVICEABLE PARTS,
WARNING: SERVICE BY QUALIFIED PERSONNEL ONLY.
REPLACE FUSE WITH SAME TYPE AND RATING. CHANNEL A
NOTE
Appendix B: Calibration
OUTPUT
LO HI
40V, 50A MAX.
!
HI
LO
Model
B-23