Keithley 2657A

A
ppendix B: Calibration Model 2657A High Power System SourceMeter® Instrument Reference Manual
B-22 2657A-901-01 Rev. B/December 2012
Figure 130: Connections for voltage calibration (direct connection)
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
Sense
HI
Sense
LO
Model 2657A
Input LO
Input HI
Test fixture
Digital multimeter
Pin 22 = +5 V
Pin 24 = Interlock (INT)