National Instruments NI-9244, Начало работы

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1. Route wires under the largest strain-relief piece.
2. Secure the largest strain-relief piece and the backshell in place using captive
screws.
Converting L-N Measurements to L-Earth
To convert L-N measurements to L-Earth values, add the neutral channel reading to
each AI channel reading.
Refer to the following equation for an example of converting L-N measurements to
L-Earth.
Line to Earth = AIx + Neutral
where
■
AIx is the analog input channel reading
■
Neutral is the Neutral channel reading
Converting L-N Measurements to L-L
To convert L-N measurements to L-L values, calculate the voltage difference
between the AI channels using your application software.
Refer to the following equation for an example of converting L-N measurements to
L-L.
Phase A to Phase B Voltage = AI0 - AI1
where
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NI-9244 Getting Started