Keithley 2651A Reference Manual

Model 2651A High Power System SourceMeter® Instrument Reference Manual Appendix B: Calibration
2651A-901-01 Rev. A / March 2011 B-23
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
Figure 115: Connections for voltage calibration
LO
S
LO
S
HI
HI
Input
LO
Model 2651A
Digital multimeter
!
LINE RATING
100-240 VAC
50, 60 Hz
500VA 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:
CHANNEL A
RS-232
DIGITAL I/O
LAN
!
IEEE-488
GGGG
S
LO
SENSE/GUARD
S
HI
LO HI
OUTPUT
40V, 50A MAX.
!
Input HI
C. Perform each calibration step listed for the voltage source and measure function in the Model
2651A step sequence (on page B-19) as follows:
1. Select the range being calibrated with this command:
smua.source.rangev = range
NOTE
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.

Keithley 2651A Specifications

General

Brand	Keithley
Model	2651A
Category	Measuring Instruments
Language	English