Keithley 6430 User Manual

17-66 SCPI Command Reference
Select range
:RANGe <n>
:SOURce[1]:CURRent:RANGe <n> Select range for I-Source
:SOURce[1]:VOLTage:RANGe <n> Select range for V-Source
Parameters <n> = -105e-3 to 105e-3 Specify I-Source level (amps)
-210 to 210 Specify V-Source level (volts)
DEFault I-Source: 100µA range
V-Source: 20V range
Minimum I-Source: 1pA range (Remote PreAmp)
1µA range (Mainframe-only)
V-Source: 200mV range
MAXimum I-Source: 100mA range
V-Source: 200V range
UP Select next higher range
DOWN Select next lower range
Query :RANGe? Query range for specified source
:RANGe? DEFault Query *RST default source range
:RANGe? MINimum Query lowest source range
:RANGe? MAXimum Query highest source range
Description This command is used to manually select the range for the specified source.
Range is selected by specifying the approximate source magnitude that you
will be using. The instrument will then go to the lowest range that can
accommodate that level. For example, if you expect to source levels around
3V, send the following command:
:SOURce:VOLTage:RANGe 3
The above command will select the 20V range for the V-Source.
As listed in Parameters, you can also use the MINimum, MAXimum and
DEFault parameters to manually select the source range. The UP parameter
selects the next higher source range, while DOWN selects the next lower
source range.
Note that source range can be selected automatically by the instrument. See
the next command.

Keithley 6430 Specifications

General

Type	Sub-Femtoamp Remote SourceMeter
Compliance Voltage	200 V
Maximum Output Voltage	200 V
Maximum Output Current	100 mA
Compliance Limit	Programmable
Interface	GPIB, RS-232
Input Impedance	>10^14 Ω