Keithley 2461 Reference Manual

Section
6: SCPI command reference Model 2461 Interactive SourceMeter® Instrument
Reference Manual
6-98 2461-901-01 A/November 2015
Details
This command manually selects the measurement range for the specified source.
If you select a specific source range, the range must be large enough to source the value. If not, an
overrange condition can occur.
If an overrange condition occurs, an event is displayed and the change to the setting is ignored.
The fixed current source ranges are 1 µA, 10 µA, 100 µA, 1 mA, 10 mA, 100 mA, 1 A, 4 A, 5 A, 7 A,
and 10 A. Note that if the 10 A range is selected, the maximum source output level is 7.35 A unless
pulsing is active.
The fixed voltage source ranges are 200 mV, 2 V, 7 V, 10 V, 20 V, and 100 V.
When you read this value, the instrument returns the positive full-scale value that the instrument is
presently using.
This command is intended to eliminate the time required by the automatic range selection.
To select the range, you can specify the approximate source value that you will use. The instrument
selects the lowest range that can accommodate that level. For example, if you expect to source levels
around 50 mV, send 0.05 (or 50e-3) to select the 200 mV range.
If automatic range selection is set to on, when you select a specific range, automatic is set to off. To
set the range to automatic selection, use the source autorange command.
Example
:SOURce:VOLTage:RANGe 3
Send this command to source levels around
3 V. This example selects the 20
V range for
the voltage source.
Also see
:SOURce[1]:<function>:RANGe:AUTO (on page 6-98)
Ranges (on page 2-124)
:SOURce[1]:<function>:RANGe:AUTO
This command determines if the range is selected manually or automatically for the selected source function.
Type Affected by Where saved Default value
Command and query
Recall settings
Instrument reset
Power cycle
Source configuration list
Save settings
Source configuration list
1 (ON)
Usage
:SOURce[1]:CURRent:RANGe:AUTO <state>
:SOURce[1]:CURRent:RANGe:AUTO?
:SOURce[1]:VOLTage:RANGe:AUTO <state>
:SOURce[1]:VOLTage:RANGe:AUTO?
<state>
Disable automatic source range: 0 or OFF
Enable automatic source range: 1 or ON

Keithley 2461 Specifications

General

Brand	Keithley
Model	2461
Category	Measuring Instruments
Language	English