NI PXIe-4353 Calibration Procedure
6
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5.
To reduce the loading error when using a Fluke 5520A, set the voltage range to 3.3 V as follows:
a.
On the front panel, set the output voltage to 2.0 V.
b.
Press the
3.3 V Auto
button, which will display 3.3 V locked. The output will no longer
auto-range.
c.
Set the output to the desired voltage level using Table 4.
6.
Create and configure AI voltage channels you want to verify.
7.
Set the autozero mode to Every Sample and disable open thermocouple detection.
8.
On the DAQmx Channel property node, set the DAQmx ADC timing mode property to Custom and
set the ADC custom timing mode property to a value from the first column of Table 4. To determine
which timing mode to select, use Table 4.
9.
Configure the timing properties for a finite voltage acquisition. Refer to Table 2.
10. Start the acquisition.
Table 2.
DAQmx Timing Function Rate and Samples per Channel
Timing Mode
Rate (S/s)
Samples per Channel
1
1
16
2
2
16
3
4
20
4
8
40
5
16
80
6
32
120
7
90
300
