Model 4200A-SCS Parameter Analyzer Reference Manual
Section 9: Keithley External Control Interface (KXCI)
4200A-901-01 Rev. C / February 2017
9-47
RG
This command sets the lowest current range to be used when measuring.
Usage
RG
A
,
B
A
SMU number (1 to 9)
B
The lowest autoranged range:
•
4200-SMU without a preamplifier:
−
100e-9 to 100e-3 A
•
4200-SMU with a preamplifier:
−
1e-12 to 100e-3 A
•
4210-SMU without a preamplifier:
−
100e-9 to 1 A
•
4210-SMU with a preamplifier:
−
1e-12 to 1 A
Details
The default autoranged ranges are 100 nA without a preamplifier and 1 nA with a preamplifier.
Example
RG 2, 10E-12
This command string sets the lowest range of SMU2 with a preamplifier to 10 pA.
Also see
None
AC
This command autocalibrates a SMU channel.
Usage
AC
A
A
SMU number (1 to 9)
Details
When this command is sent, the selected SMU channel is calibrated automatically. The busy bit in the
status register is set so that you can detect when autocalibration is finished. The 4200A-SCS will not
respond to any commands while autocalibration is executing.
Example
AC 1
This command string performs auto calibration on SMU channel number 1.
Also see
None
