Tektronix KEITHLEY 2600B Series User Manual

Section 2: Sourcing and measuring Series 2600B System SourceMeter® instrument Reference Manual
2-66 2600BS-901-01 Rev. F/August 2021
Relative offset commands
Relative offset commands are summarized in the following table.
Relative offset commands
Command*
Description
To set relative offset values:
smuX.measure.rel.leveli = relval
Set current relative offset value
smuX.measure.rel.levelp = relval
Set power relative offset value
smuX.measure.rel.levelr = relval
Set resistance relative offset value
smuX.measure.rel.levelv = relval
Set voltage relative offset value
To enable or disable relative offset:
smuX.measure.rel.enablei = smuX.REL_OFF
Disable current relative offset
smuX.measure.rel.enablep = smuX.REL_OFF
Disable power relative offset
smuX.measure.rel.enabler = smuX.REL_OFF
Disable resistance relative offset
smuX.measure.rel.enablev = smuX.REL_OFF
Disable voltage relative offset
smuX.measure.rel.enablei = smuX.REL_ON
Enable current relative offset
smuX.measure.rel.enablep = smuX.REL_ON
Enable power relative offset
smuX.measure.rel.enabler = smuX.REL_ON
Enable resistance relative offset
smuX.measure.rel.enablev = smuX.REL_ON
Enable voltage relative offset
* smuX can be smua for channel A or smub for channel B
Relative offset programming example
The programming example below performs a current measurement, uses it as the relative offset value,
and enables current relative offset:
-- Measure and set present current value as the relative offset.
smua.measure.rel.leveli = smua.measure.i()
-- Enable current relative offset.
smua.measure.rel.enablei = smua.REL_ON
Filters
The filter feature lets you set the filter response to stabilize noisy measurements. The 2600B uses a
digital filter, which is based on reading conversions. The displayed, stored, or transmitted reading is
calculated using one or more reading conversions (from 1 to 100).
Filter types
The 2600B provides two averaging filters and a median filter. The power-on default is the
repeating filter.
The averaging filters are repeating and moving, as shown in the following figure. For the repeating
filter, the stack (filter count) is filled, and the conversions are averaged to yield a reading. The stack is
then cleared, and the process starts over.

Tektronix KEITHLEY 2600B Series Specifications

General

Brand	Tektronix
Model	KEITHLEY 2600B Series
Category	Measuring Instruments
Language	English