Keithley 2651A Reference Manual

Model 2651A High Power System SourceMeter® Instrument Reference Manual Appendix B: Calibration
2651A-901-01 Rev. A / March 2011 B-31
Step 5. Contact check calibration adjustment
A. As illustrated in the following figure:
• Short the Model 2651A SENSE LO and OUTPUT LO terminals together.
• Short the SENSE HI and OUTPUT HI terminals together.
Figure 118: Connections for contact check 0 OHM calibration
SENSE
LO
SENSE
HI
OUTPUT
LO
Model 2651A
!
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.
!
OUTPUT
HI
B. Allow the readings to settle, then get the Model 2651A readings:
r0_hi, r0_lo = smua.contact.r()
C. As illustrated in the following figure:
• Characterize both 50 Ω resistors using the resistance function of the digital multimeter.
• Connect a 50 Ω resistor between the SENSE LO and OUTPUT LO terminals.
• Connect the second 50 Ω resistor between the SENSE HI and OUTPUT HI terminals.
Figure 119: Connections for contact check 50 ohm calibration
SENSE
LO
SENSE
HI
OUTPUT
LO
Model 2651A
!
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.
!
OUTPUT
HI
50 Ω resistor
(2 places)

Keithley 2651A Specifications

General

Brand	Keithley
Model	2651A
Category	Measuring Instruments
Language	English