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National Instruments WSN-3226 Calibration Procedure
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National Instruments WSN-3226 Calibration Procedure

National Instruments WSN-3226 Calibration Procedure

Wireless sensor network 4-channel, 20-bit voltage/rtd node
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CALIBRATION PROCEDURE
NI WSN-3226
NI Wireless Sensor Network 4-Channel, 20-Bit Voltage/RTD Node
This document contains the verification procedures for the National Instruments WSN-3226.
For more information about calibration solutions, visit
Contents
Software.................................................................................................................................... 1
Documentation.......................................................................................................................... 1
Test Equipment......................................................................................................................... 2
Test Conditions......................................................................................................................... 2
Initial Setup............................................................................................................................... 3
Verification ............................................................................................................................... 3
Voltage Accuracy Verification ......................................................................................... 3
Resistance Accuracy Verification .................................................................................... 5
Re-Verification ......................................................................................................................... 6
Accuracy Under Calibration Conditions .................................................................................. 6
Where to Go for Support .......................................................................................................... 7

Software

Calibrating the NI WSN-3226 requires the installation of LabVIEW 2010 or later and
NI-WSN 1.2 or later on the calibration system. You can download NI-WSN from
.
downloads

Documentation

Consult the following documents for information about the NI WSN-3226, NI-WSN, and
LabVIEW. All documents are available on
NI Wireless Sensor Network Devices Getting Started Guide
NI-WSN installation and hardware setup
NI WSN-3226 User Guide and Specifications
NI WSN-3226 specific information, specifications, and calibration interval
ni.com/calibration
and help files install with the software.
ni.com
.
ni.com/

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Summary of Contents for National Instruments WSN-3226

  • Page 1: Table Of Contents

    Accuracy Under Calibration Conditions .................. 6 Where to Go for Support ......................7 Software Calibrating the NI WSN-3226 requires the installation of LabVIEW 2010 or later and NI-WSN 1.2 or later on the calibration system. You can download NI-WSN from ni.com/...

  • Page 2: Test Equipment

    Verify that all connections to the device are secure. • The NI WSN-3226 must be powered by either an external 9 V to 30 V power supply or four AA (1.5 V) batteries (alkaline only). 2 | ni.com | NI WSN-3226 Calibration Procedure...

  • Page 3: Initial Setup

    Automation Explorer (MAX). Verification The following performance verification procedures describe the sequence of operation and test points required to verify the NI WSN-3226 and assume that adequate traceable uncertainties are available for the calibration references. Voltage Accuracy Verification Complete the following procedure to determine the As-Found status of the NI WSN-3226.
  • Page 4 NI WSN-3226. Acquire and average 25 voltage readings with the NI WSN-3226. 10. Compare the average of the NI WSN-3226 readings with the 3-Year Limits in Table 3. 11. Repeat steps 7 through 10 for all test points in Table 3.

  • Page 5: Resistance Accuracy Verification

    10. Acquire and average 25 voltage readings with the NI WSN-3226. 11. Compare the average of the NI WSN-3226 readings with the 3-Year Limits in Table 5. 12. Repeat steps 7 through 11 for all test points and all RTD/resistance ranges in Table 5.

  • Page 6: Re-Verification

    14. Repeat steps 1 through 13 for each channel on the NI WSN-3226. Table 5. NI WSN-3226 Resistance Test Limits 3-Year Ranges RTD/Resistance Range Setting Test Point (Ω) Lower Limit (Ω) Upper Limit (Ω) 400 Ω/Pt100 99.893 100.107 389.777 390.223 4 kΩ/Pt1000...

  • Page 7: Where To Go For Support

    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. © 2013 National Instruments. All rights reserved.