National Instruments NI 9246 Calibration Procedure
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National Instruments NI 9246 Calibration Procedure

National Instruments NI 9246 Calibration Procedure

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CALIBRATION PROCEDURE
NI 9246/9247
This document contains the verification and adjustment procedures for the NI 9246 and NI 9247.
For more information about calibration solutions, visit
Contents
Software.................................................................................................................................... 1
Documentation.......................................................................................................................... 2
Test Equipment......................................................................................................................... 3
Test Conditions......................................................................................................................... 3
Initial Setup............................................................................................................................... 3
Verification............................................................................................................................... 4
Accuracy Verification....................................................................................................... 4
Adjustments .............................................................................................................................. 6
Accuracy Adjustment ....................................................................................................... 6
EEPROM Update ..................................................................................................................... 6
Reverification ........................................................................................................................... 7
Worldwide Support and Services ............................................................................................. 7

Software

Calibrating the NI 9247 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.
™
™
/CVI
, C/C++, C#, and Visual Basic .NET. When you install
ni.com/calibration
ni.com/downloads
.
. NI-DAQmx supports

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Summary of Contents for National Instruments NI 9246

  • Page 1 CALIBRATION PROCEDURE NI 9246/9247 This document contains the verification and adjustment procedures for the NI 9246 and NI 9247. For more information about calibration solutions, visit ni.com/calibration Contents Software............................ 1 Documentation.......................... 2 Test Equipment......................... 3 Test Conditions......................... 3 Initial Setup..........................3 Verification..........................
  • Page 2 Documentation Consult the following documents for information about the NI 9246/9247, NI-DAQmx, and your application software. All documents are available on and help files install with the ni.com software. NI cDAQ-9174/9178 USB Chassis Quick Start NI-DAQmx installation and hardware setup.
  • Page 3 • Keep relative humidity below 80%. • Allow a warm-up time of at least 10 minutes to ensure that the NI 9246/9247 measurement circuitry is at a stable operating temperature. Initial Setup Complete the following steps to set up the NI 9246/9247.
  • Page 4 Set the calibrator to Operate mode (OPR). Wait at least 45 seconds for the signal to settle. Acquire samples from each channel. Create and configure an AI current task on the NI 9246/9247 according to Table 2. Table 2. NI 9246/9247Configuration for Accuracy Verification Scaled Units Physical Channels -31.25...
  • Page 5 For the maximum Test Point calculate and record the AC magnitude for each channel on the NI 9246/9247. NI recommends using the Extract Single Tone Information VI to calculate the magnitude. For the minimum test point average the value and record the result.
  • Page 6 The following performance adjustment procedure describes the sequence of operation required to adjust the NI 9246/9247. Accuracy Adjustment Complete the following procedure to adjust the accuracy performance of the NI 9246/9247. Set the calibrator to Standby mode (STBY). Connect the NI 9246/9247 to the calibrator as shown in Figure 1.
  • Page 7 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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Ni 9247

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