National Instruments NI 9209 Calibration Procedure
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National Instruments NI 9209 Calibration Procedure

16-channel differential/32-channel single-ended, ±10 v, 24-bit analog input module
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CALIBRATION PROCEDURE
NI 9209
16-Channel Differential/32-Channel Single-Ended, ±10 V, 24-Bit
Analog Input Module
This document contains the verification and adjustment procedures for the NI 9209. For more
information about calibration solutions, visit
Contents
Software.................................................................................................................................... 1
Documentation.......................................................................................................................... 2
Test Equipment......................................................................................................................... 3
Test Conditions......................................................................................................................... 3
Initial Setup............................................................................................................................... 3
Verification............................................................................................................................... 4
Differential Voltage Accuracy Verification ..................................................................... 4
Single-Ended Voltage Accuracy Verification .................................................................. 6
Adjustments .............................................................................................................................. 7
Voltage Accuracy Adjustment.......................................................................................... 7
EEPROM Update ..................................................................................................................... 8
Reverification ........................................................................................................................... 8
Accuracy Under Calibration Conditions .................................................................................. 9
Worldwide Support and Services ............................................................................................. 9

Software

Calibrating the NI 9209 requires the installation of NI-DAQmx 15.1 or later on the calibration
system. You can download NI-DAQmx from
LabVIEW, LabWindows
NI-DAQmx you only need to install support for the application software that you intend to use.
ni.com/calibration
™
/CVI
™
, C/C++, C#, and Visual Basic .NET. When you install
ni.com/downloads
.
. NI-DAQmx supports

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Summary of Contents for National Instruments NI 9209

  • Page 1: Table Of Contents

    Reverification ........................... 8 Accuracy Under Calibration Conditions .................. 9 Worldwide Support and Services ..................... 9 Software Calibrating the NI 9209 requires the installation of NI-DAQmx 15.1 or later on the calibration ni.com/downloads system. You can download NI-DAQmx from . NI-DAQmx supports LabVIEW, LabWindows ™...

  • Page 2: Documentation

    Documentation Consult the following documents for information about the NI 9209, NI-DAQmx, and your ni.com application software. All documents are available on and help files install with the software. NI cDAQ-9174/9178 USB Chassis Quick Start NI-DAQmx installation and hardware setup NI 9209 Getting Started Guide NI 9209 specific information.

  • Page 3: Test Equipment

    • Keep relative humidity below 80%. • Allow a warm-up time of at least 10 minutes to ensure that the NI 9209 measurement circuitry is at a stable operating temperature. Initial Setup Complete the following steps to set up the NI 9209.

  • Page 4: Verification

    Set the calibrator voltage to a Test Point value indicated in Table 4. Set the calibrator to Operate mode (OPR). Acquire and average samples. Create and configure an AI voltage task on the NI 9209 according to Table 2. Table 2. NI 9209 Configuration for Voltage Accuracy Verification Input Range...
  • Page 5 The uncertainty of the calibration standard is not included in these limits. Note Repeat step 5 and 6 with the ADC timing mode on the NI 9209 set to high-speed. Set the calibrator to Standby mode (STBY). Repeat steps 3 through 8 for each test point listed in Table 4.

  • Page 6: Single-Ended Voltage Accuracy Verification

    Set the calibrator voltage to a Test Point value indicated in Table 6. Set the calibrator to Operate mode (OPR). Acquire and average samples. Create and configure an AI voltage task on the NI 9209 according to Table 5. Table 5. NI 9209 Configuration for Voltage Accuracy Verification Input Range...

  • Page 7: Adjustments

    The uncertainty of the calibration standard is not included in these limits. Note Repeat step 5 and 6 with the ADC timing mode on the NI 9209 set to high-speed. Set the calibrator to Standby mode (STBY). Repeat steps 3 through 8 for each test point listed in Table 6.

  • Page 8: Eeprom Update

    Call and configure the NI 9209 gain instance of the adjustment function according to Table 7 with the input terminal configuration set to Differential. Table 7. Gain Adjustment Configuration Physical Channel Reference Value cDAQMod8/aix The reference value from the array of adjustment points Set the calibrator to Standby mode (STBY).

  • Page 9: Accuracy Under Calibration Conditions

    NI. National Instruments corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas, 78759-3504. National Instruments also has offices located around the world. For ni.com/support telephone support in the United States, create your service request at or dial 1 866 ASK MYNI (275 6964).
  • Page 10 NI product. Refer to the Export Compliance Information at ni.com/legal/export-compliance for the National Instruments global trade compliance policy and how to obtain relevant HTS codes, ECCNs, and other import/export data. NI MAKES NO EXPRESS OR IMPLIED WARRANTIES AS TO THE ACCURACY OF THE INFORMATION CONTAINED HEREIN AND SHALL NOT BE LIABLE FOR ANY ERRORS.

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