Keithley 2461 Reference Manual

Section
8: TSP command reference Model 2461 Interactive SourceMeter® Instrument
Reference Manual
8-128 2461-901-01 A/November 2015
Details
This command specifies the relative offset value that can be applied to new measurements. When
relative offset is enabled, all subsequent digitized readings are offset by the value that is set for this
command.
You can set this value, or have the instrument acquire a value. If the instrument acquires the value,
read this setting to return the value that was measured internally.
If you have math, limits, or filter operations selected, you can set the relative offset value to include
the adjustments made by these operations. To include these operations, set
smu.digitize.rel.level to smu.digitize.read(). The adjustments from these operations
are not used if you use the smu.digitize.rel.acquire() function to set the relative offset
level.
Example
smu.digitize.func = smu.FUNC_DIGITIZE_CURRENT
smu.digitize.rel.level = smu.digitize.read()
smu.digitize.rel.enable = smu.ON
Set the digitize function to digitize current.
Set the relative offset level to be the reading
with any calculations included.
Enable the relative offset.
Also see
Relative offset (on page 3-79)
smu.digitize.rel.acquire() (on page 8-126)
smu.digitize.rel.enable (on page 8-127)
smu.digitize.samplerate
This attribute defines the precise acquisition rate at which the digitizing measurements are made.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW) Yes
Restore configuration
Instrument reset
Power cycle
Measure configuration list
Configuration script
Measure configuration list
100,000
Usage
readings = smu.digitize.samplerate
smu.digitize.samplerate = readings
readings
The number of readings per second: 1,000 to 1,000,000
Details
The sample rate determines how fast the Model 2461 acquires a digitized reading.
Set the sample rate before setting the aperture. If the aperture setting is too high for the selected
sample rate, it is automatically adjusted to the highest aperture that can be used with the sample rate.

Keithley 2461 Specifications

General

Brand	Keithley
Model	2461
Category	Measuring Instruments
Language	English