NI PXIe-4304/4305 Calibration Procedure
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© National Instruments
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4.
Refer to Table 4 to configure the PXI-4071 and acquire a voltage measurement.
5.
Acquire a voltage measurement with the PXIe-4304/4305.
a.
Create a DAQmx task.
b.
Create and configure the AI channel according to the values shown in Table 5.
c.
Start the task.
d.
Average the readings that you acquired.
Table 4.
PXI-4071 Voltage Measurement Setup
Configuration
Value
Function
DC measurement
Range
1 V range for test points of 0 V.
100 V range for all other test points.
Digital Resolution
7.5 digits
Aperture Time
100 ms
Autozero
On
ADC Calibration
On
Input Impedance
10 M
Ω
DC Noise Rejection
High Order
Number of Averages
1
Power Line Frequency
Dependent upon the local power line characteristics.
Table 5.
AI Voltage Mode Setup
Configuration
Value
Channel Name
Dev1/aix
, where
x
refers to the channel number
Task
AI voltage
Sample Mode
Finite samples
Sample Clock Rate
5000
Samples per Channel
5000
Maximum Value
Appropriate maximum range value from Table 6
Minimum Value
Appropriate minimum range value from Table 6
Units
Volts
