National Instruments 446 Series User Manual

NI 446X Calibration Procedure 18 ni.com
8. Acquire data using the following function.
9. Stop the task using the following function.
10. Clear the task using the following function.
11. Average all the values in the array returned from the acquisition. This
average is used to calculate the gain accuracy for AI 0 at –20 dB device
gain setting. Compare this value to the limits (V) in Table 3.
NI-DAQmx Function Call LabVIEW Block Diagram
Call DAQmxReadAnalogF64 with
the following parameters:
taskHandle:
myTaskHandle
numSampsPerChan: -1
timeout: 10.0
fillMode:
DAQmx_Val_GroupByChannel
arraySizeInSamps: 102400
reserved: NULL
readArray:
float64ArrayReturnValue
sampsPerChanRead:
int32PointerReturnValue
NI-DAQmx Function Call LabVIEW Block Diagram
Call DAQmxStopTask with the following
parameters:
taskHandle:
myTaskHandle
NI-DAQmx Function Call LabVIEW Block Diagram
Call DAQmxClearTask with the following
parameters:
taskHandle:
myTaskHandle

National Instruments 446 Series Specifications

General

Brand	National Instruments
Model	446 Series
Category	Measuring Instruments
Language	English