CALIBRATION PROCEDURE NI 9231 8 AI, ±5 V, 24 Bit, 51.2 kS/s/ch Simultaneous, AC/DC Coupling, IEPE AC Coupling This document contains the verification and adjustment procedures for NI 9231. For more information about calibration solutions, visit ni.com/calibration. Contents Software............................ 1 Documentation..........................
NI cDAQ-9174/9178 USB Chassis Quick Start NI-DAQmx installation and hardware setup NI 9231 Getting Started Guide NI 9231 connection information NI 9231 Datasheet NI 9231 circuitry and specifications NI-DAQmx Readme Operating system and application software support in NI-DAQmx LabVIEW Help LabVIEW programming concepts and reference information about NI-DAQmx VIs and functions NI-DAQmx C Reference Help...
Verification The following performance verification procedure describes the sequence of operation and provides test points required to verify the NI 9231. The verification procedure assumes that adequate traceable uncertainties are available for the calibration references. Accuracy Verification Complete the following procedure to determine the As-Found status of the NI 9231. Set the calibrator to Standby mode (STBY).
Table 5. NI 9231 Adjustment Configuration Physical Channel Reference Value cDAQ1Mod8/AI The actual value of the voltage output of the calibrator Set the calibrator to Standby mode (STBY). Repeat steps d through g for each point in the array. Close the calibration session. Disconnect the NI 9231 from the calibrator.
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