Section 6: SCPI command reference
Model 2450 Interactive SourceMeter® Instrument Reference Manual
6-46
2450-901-01 Rev. B/September 2013
Example 3
VOLT:AVER:COUNT 10
VOLT:AVER:TCON MOV
VOLT:AVER ON
For voltage measurements, set the averaging
filter type to moving average, with a filter count
of 10.
Enable the averaging filter.
Also see
(on page 4-22)
[:SENSe[1]]:<function>:AVERage:COUNt
(on page 6-43)
[:SENSe[1]]:<function>:AVERage[:STATe]
(on page 6-44)
[:SENSe[1]]:<function>:AZERo[:STATe]
This command enables or disables of the internal reference measurements (autozero) of the source-measure
unit.
Type
Affected by
Where saved
Default value
Command and query
Recall settings
Instrument reset
Power cycle
Measure configuration list
Save settings
Measure configuration list
1 (ON)
Usage
[:SENSe[1]]:<function>:AZERo[:STATe] <state>
[:SENSe[1]]:<function>:AZERo[:STATe]?
<function>
The measurement function to which this setting applies:
•
Current:
CURRent[:DC]
•
Resistance:
RESistance
•
Voltage:
VOLTage[:DC]
<state>
The status of autozero:
•
The instrument automatically checks reference and zero measurements and
performs autozero when needed:
ON
or
1
•
Disable autozero:
OFF
or
0
Details
The analog-to-digital converter (ADC) uses a ratiometric A/D conversion technique. To ensure the accuracy of
readings, the instrument must periodically get new measurements of its internal ground and voltage reference.
The time interval between updates to these reference measurements is determined by the integration aperture
that is being used for measurements. The Model 2450 uses separate reference and zero measurements for each
aperture.
By default, the instrument automatically checks these reference measurements whenever a signal measurement
is made.
