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NI 9234 Calibration Procedure

Documentation

Consult the following documents for information about the NI 9234, NI-DAQmx, and your
application software. All documents are available on

ni.com

and help files install with the

software.

NI cDAQ-9174/9178 USB Chassis Quick Start

NI-DAQmx installation and hardware setup

NI 9234 Operating Instructions and Specifications

NI 9234 specific information, specifications, and calibration interval

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

Reference information for NI-DAQmx C functions and NI-DAQmx C properties

NI-DAQmx .NET Help Support for Visual Studio

Reference information for NI-DAQmx .NET methods and NI-DAQmx .NET
properties, key concepts, and a C enum to .NET enum mapping table

Содержание NI 9234

Страница 1: ...NI 9234...

Страница 2: ...ion 6 Phase Matching Verification 8 Common Mode Rejection Ratio Verification 9 IEPE Current Verification 11 IEPE Compliance Voltage Verification 12 Adjustment 14 Accuracy Adjustment 14 EEPROM Update 1...

Страница 3: ...ctions and Specifications NI 9234 specific information specifications and calibration interval NI DAQmx Readme Operating system and application software support in NI DAQmx LabVIEW Help LabVIEW progra...

Страница 4: ...tion generator capable of sourcing 1 kHz and 10 kHz 4 5 Vpk AC sinusoidal signals with amplitude uncertainty of 10 or less Phase Matching Use a function generator capable of sourcing both 1 kHz and 10...

Страница 5: ...minutes to ensure that the NI 9234 measurement circuitry is at a stable operating temperature Initial Setup Complete the following steps to set up the NI 9234 1 Install NI DAQmx 2 Make sure the NI cDA...

Страница 6: ...utput is not grounded floating Notes The analog inputs on the NI 9234 are grounded so the calibrator must be not grounded floating to prevent ground loop measurement errors To float the output of the...

Страница 7: ...calibrator to Standby mode STBY 2 Connect the NI 9234 to the calibrator Refer to Figure 2 for a connection diagram Figure 2 Gain Matching Verification Connections to the NI 9234 3 Verify that the cali...

Страница 8: ...calibrator to Standby mode STBY 8 Disconnect the calibrator from the device 9 Perform the following calculation using the recorded V1 and V2 values 10 Repeat steps 1 through 9 for each channel 11 Com...

Страница 9: ...a Create an AI voltage task on the NI 9234 according to Table 8 Note Wait 20 s for the AC coupling filter on the NI 9234 to settle b Configure the AI voltage task timing according to Table 9 c Enable...

Страница 10: ...e device to NI Common Mode Rejection Ratio Verification Complete the following procedure to determine the As Found status of the NI 9234 1 Connect the NI 9234 to the function generator and short the p...

Страница 11: ...sing the recorded AmplitudeAcq h Compare the calculation result to the minimum CMRR limit of 40 dB 6 Repeat steps 1 through h for each channel If the Common Mode Rejection Ratio verification procedure...

Страница 12: ...14 b Configure the AI voltage task timing according to Table 15 c Start the task d Record the DMM measurement e Clear the task 4 Compare the DMM measurement to the minimum current limit of 2 0 mA 5 R...

Страница 13: ...2 mA 3 Measure IEPE Source short circuit current a Create an AI voltage task on the NI 9234 according to Table 16 b Configure the AI voltage task timing according to Table 17 c Start the task d Recor...

Страница 14: ...ording to Table 19 c Set the source current on the SMU to the recorded SMUSourceCurrent value d Start the task e Enable the SMU f Record the SMU measurement SMUVoltage g Disable the SMU h Clear the ta...

Страница 15: ...the DAQmx adjustment function according to Table 20 g Set the calibrator to Standby mode STBY h Repeat steps d through g for each calibration voltage in the array i Disconnect the NI 9234 from the ca...

Страница 16: ...tion Conditions The following calibration specifications are valid under the following conditions Ambient temperature 23 5 C NI 9234 installed in slot 8 of an NI cDAQ 9178 chassis Slots 1 through 7 of...

Страница 17: ...site is your complete resource for technical support At ni com support you have access to everything from troubleshooting and application development self help resources to email and phone assistance...