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CALIBRATION PROCEDURE

NI 9212

This document contains the verification

and adjustment procedures for the NI 9212. For more

information about calibration solutions, visit

ni.com/calibration

Note

Refer to the

NI TB-9212 Calibration Procedure

ni.com/manuals

for

instructions on calibrating the NI TB-9212.

Contents

Software.................................................................................................................................... 2
Documentation.......................................................................................................................... 2
Test Equipment......................................................................................................................... 3

Connecting the NI 9212.................................................................................................... 4

Test Conditions......................................................................................................................... 5
Initial Setup............................................................................................................................... 5
Verification............................................................................................................................... 6

Voltage Verification ......................................................................................................... 6
CJC Verification ............................................................................................................... 8

Adjustment................................................................................................................................ 11

Voltage Adjustment.......................................................................................................... 11
CJC Adjustment................................................................................................................ 12

Содержание 9212

Страница 1: ...libration Procedure on ni com manuals for instructions on calibrating the NI TB 9212 Contents Software 2 Documentation 2 Test Equipment 3 Connecting the NI 9212 4 Test Conditions 5 Initial Setup 5 Ver...

Страница 2: ...install with the software NI cDAQ 9174 9178 Quick Start NI DAQmx installation and hardware setup NI 9212 with NI TB 9212 Getting Started Guide NI 9212 with NI TB 9212 specific information NI 9212 wit...

Страница 3: ...justment A high precision voltage source with an accuracy of 70 ppm when sourcing up to 50 A Fluke 5522A CJC Verification A high precision resistance source with 2 wire compensation and an accuracy of...

Страница 4: ...ter than 10 VDC to the NI CAL 9212 Figure 1 NI CAL 9212 Pinout Connect the NI CAL 9212 to the NI 9212 front connector as shown in Figure 2 Tighten the two jackscrews on the NI CAL 9212 to hold it secu...

Страница 5: ...t for information about how to install the software and hardware and how to configure the device in Measurement Automation Explorer MAX Complete the following steps to set up the NI 9212 1 Install NI...

Страница 6: ...e Channel Verification Connections 3 Reinstall the top cover on the NI CAL 9212 4 Connect the NI CAL 9212 to the NI 9212 as shown in Figure 2 5 On the Fluke 5522A calibrator lock the voltage range to...

Страница 7: ...el Timing Configuration ADC Timing Mode Sample Mode Samples to Read Rate S s Timeout s High Resolution Finite 20 1 8 30 Best 50 Hz Rejection 80 7 1 Best 60 Hz Rejection 100 8 3 High Speed 1 000 95 Tab...

Страница 8: ...erived using the values in Table 11 19 Repeat steps 17 through 18 for each ADC timing mode on the NI 9212 20 Remove the NI CAL 9212 from the NI 9212 21 Loosen the captive screws and remove the top cov...

Страница 9: ...9 Acquire and average samples a Create and configure an AI voltage channel on the NI 9212 according to Table 6 b Configure the AI voltage channel timing according to Table 7 Table 6 NI 9212 CJC Chann...

Страница 10: ...9212 17 Disconnect the calibrator from the NI CAL 9212 18 Repeat steps 2 through 17 for the other CJC channel on the NI 9212 Note The test limits in Table 8 are derived using the values in Tables 6 an...

Страница 11: ...ll the Get NI 9212 Calibration Adjustment Points function and set the physical channel according to Table 9 to obtain an array of recommended calibration voltages for the NI 9212 c On the Fluke 5522A...

Страница 12: ...quire the adjustment coefficient a On the digital multimeter set the range to 10 V b On the digital multimeter set the input resistance to greater than 10 G a Take five digital multimeter readings b A...

Страница 13: ...Set the calibrator to a reference value determined by the array of adjustment points f Set the calibrator to Operate mode OPR g Wait at least 15 seconds for the NI 9212 to settle before proceeding to...

Страница 14: ...eturning your device to NI Refer to Worldwide Support and Services for assistance in returning the device to NI Accuracy Under Calibration Conditions The values in the following table are based on cal...

Страница 15: ...protection for electromagnetic compatibility EMC and product safety You can obtain the DoC for your product by visiting ni com certification If your product supports calibration you can obtain the cal...

Страница 16: ...an find information about end user license agreements EULAs and third party legal notices in the readme file for your NI product Refer to the Export Compliance Information at ni com legal export compl...

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