Keithley 2601B Reference Manual page 776

Appendix B: Calibration
D. Before continuing, be sure to complete steps 1 through 22 for the 100 nA to 1 A ranges before
continuing with 3 A and 10 A range calibration (Model 2601B/2602B/2604B) or 1.5 A and 10 A
range calibration (Model 2611B/2612B/2614B/2634B/2635B/2636B).
E. Change connections as shown in the following figure.
B-34
Series 2600B System SourceMeter® Instrument Reference Manual
Figure 150: Connections for 1.5 A and 3 A current ranges
2600BS-901-01 Rev. B / May 2013