Keithley 4200A-SCS Reference Manual page 342

Model 4200A-SCS Parameter Analyzer Reference Manual
Measure Current Range (PMU)
The measure range determines the full-scale measurement span that is applied to the signal.
Therefore, it affects both the accuracy of the measurements and the maximum signal that can be
measured.
The current measure range affects the time required to obtain settled measurements. Lower current
ranges require additional time to reach a settled signal level. If the pulse timing parameters are too
short for one or more current measure ranges, some ranges will be unavailable.
As shown in the table below, available current measurement ranges for the PMU depend on the
selected voltage source range. The 10 mA measure range for the 10 V source range has better
accuracy than the 10 mA range for the 40 V source range.
Fixed current measurement ranges (PMU only)
If you are using an RPM, additional current measurement ranges become available to the PMU. The
next table lists the current measurement ranges for the PMU when using the RPM. The 10 mA
measure range for the 10 V source range has better accuracy than the 10 mA range for the 40 V
source range.
Current measurement ranges for the PMU with RPM
4200A-901-01 Rev. C / February 2017
10 V range 40 V range
10 mA 100 µA
200 mA 10 mA
−
800 mA
10 V range 40 V range
100 nA 100 µA
1 µA 10 mA
10 µA 800 mA
−
100 µA
−
1 mA
−
10 mA
−
200 mA
Section 6: Clarius
6-73