Keithley 2601B Reference Manual page 233

Series 2600B System SourceMeter® Instrument Reference Manual Section 4: Theory of operation
The first graph in the figure (marked "A: Output characteristics") shows the output characteristics for
the V-source. As shown, the Models 2601B, 2602B, and 2604B can output up to 6.06 V at 3 A, or
40.4 V at 1 A. Note that when sourcing more than 6.06 V, current is limited to 1 A.
The second graph in the figure (marked "B: Limit lines") shows the limit lines for the V-source. The
voltage source limit line represents the maximum source value possible for the presently selected
voltage source range. For example, if you are using the 6 V source range, the voltage source limit line
is at 6.06 V. The current compliance limit line represents the actual compliance in effect (see Limits
(on page 2-27)). These limit lines are boundaries that represent the operating limits of the System
®
SourceMeter instrument for this quadrant of operation. The operating point can be anywhere inside
(or on) these limit lines. The limit line boundaries for the other quadrants are similar.
Models 2611B/2612B/2614B/2634B/2635B/2636B V-source operating boundaries
The following figure shows the operating boundaries for the V-source. Only the first quadrant of
operation is shown. Operation in the other three quadrants is similar.
2600BS-901-01 Rev. B / May 2013 4-7