National Instruments NI 9208 Calibration Procedure
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National Instruments NI 9208 Calibration Procedure

National Instruments NI 9208 Calibration Procedure

16-channel, ±20 ma, 24-bit analog input module
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CALIBRATION PROCEDURE
NI 9208
16-channel, ±20 mA, 24-Bit Analog Input Module
This document contains the verification and adjustment procedures for the National
Instruments 9208. For more information on calibration, visit
Contents
Software.................................................................................................................................... 1
Documentation.......................................................................................................................... 2
Test Equipment......................................................................................................................... 3
Test Conditions......................................................................................................................... 3
Initial Setup............................................................................................................................... 3
Verification............................................................................................................................... 4
Accuracy Verification....................................................................................................... 4
Adjustment................................................................................................................................ 5
Current Accuracy Adjustment .......................................................................................... 5
EEPROM Update ..................................................................................................................... 6
Reverification ........................................................................................................................... 6
Accuracy Under Calibration Conditions .................................................................................. 7
Worldwide Support and Services ............................................................................................. 7

Software

Calibrating the NI 9208 requires the installation of NI-DAQmx 9.1 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.
Français
Deutsch
ni.com/manuals
™
™
/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 9208

  • Page 1 Reverification ........................... 6 Accuracy Under Calibration Conditions .................. 7 Worldwide Support and Services ..................... 7 Software Calibrating the NI 9208 requires the installation of NI-DAQmx 9.1 or later on the calibration system. You can download NI-DAQmx from . NI-DAQmx supports ni.com/downloads ™...
  • Page 2 Documentation Consult the following documents for information about the NI 9208, 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 Install the NI-DAQmx driver software. Make sure the NI cDAQ-9178 power source is not connected. Install the NI 9208 in slot 8 of the NI cDAQ-9178 chassis. Leave slots 1 through 7 of the NI cDAQ-9178 chassis empty. Connect the NI cDAQ-9178 chassis to your host computer.
  • Page 4 Verification The following performance verification procedure describes the sequence of operation and provides test points required to verify the NI 9208. 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 9208.
  • Page 5 -0.020968 Set the calibrator to Standby mode (STBY). Repeat steps 5 through 7 with the ADC timing mode on the NI 9208 set to high-speed. Repeat steps 3 through 8 for each test point in Table 4. 10. Disconnect the calibrator from the device.
  • Page 6 Call the NI 9208 get C Series adjustment points function to obtain an array of recommended calibration currents for the NI 9208. Set the calibrator to a reference value determined by the array of recommended calibration currents. Set the calibrator to Operate mode (OPR).
  • 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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