Keithley 2461 Reference Manual

Section
6: SCPI command reference Model 2461 Interactive SourceMeter® Instrument
Reference Manual
6-72 2461-901-01 A/November 2015
[:SENSe[1]]:<function>:UNIT
This command sets the units of measurement that are displayed on the front panel of the instrument and stored in
the reading buffer.
Type Affected by Where saved Default value
Command and query
Recall settings
Instrument reset
Power cycle
Measure configuration list
Save settings
Measure configuration list
Current: AMP
Voltage: VOLT
Usage
[:SENSe[1]]:<function>:UNIT <unitOfMeasure>
[:SENSe[1]]:<function>:UNIT?
<function>
The measure function:
• Current: CURRent[:DC]
• Voltage: VOLTage[:DC]
The digitize function:
• Digitize voltage: DIGitize:CURRent
• Digitize voltage:
DIGitize:VOLTage
<unitOfMeasure>
Current: OHM, WATT, or AMP
Voltage:
OHM
,
WATT
, or
VOLT
Details
The change in measurement units is displayed when the next measurement occurs.
Example
VOLT:UNIT WATT
Changes the front-panel display and buffer
readings for voltage measurements to be
displayed as power readings in watts.
Also see
None
[:SENSe[1]]:AZERo:ONCE
This command causes the instrument to refresh the reference and zero measurements once.
Type Affected by Where saved Default value
Command only
Not applicable
Not applicable
Not applicable
Usage
[:SENSe[1]]:AZERo:ONCE
Details
This command forces a refresh of the reference and zero measurements that are used for the present
aperture setting for the selected function.
When autozero is set to off, the instrument may gradually drift out of specification. To minimize the
drift, you can send the once command to make a reference and zero measurement immediately
before a test sequence.

Keithley 2461 Specifications

General

Maximum Current	7 A
Power	100 W
Resolution	6.5 digits
Source Measure Unit (SMU)	Yes
DC Voltage	100 V
Maximum Voltage	100 V
Display	5-inch capacitive touchscreen
Connectivity	USB, GPIB
Software	TSP
DC Current	7 A
Current Source Range	0 to 7 A
Voltage Measurement Range	100 mV to 100 V
Current Measurement Range	10 nA to 7 A
Voltage Measurement Resolution	100 nV