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323124A-01

Copyright

July 2001

USER GUIDE

ALIBRATING

IELD

OINT

NALOG

NPUT

ODULES

WITH

ALIBRATION

XECUTIVE

Contents

Introduction ............................................................................................. 2

What Is Calibration? ........................................................................ 2
Why Should You Calibrate? ............................................................ 2
How Often Should You Calibrate? .................................................. 2

Equipment and Other Test Requirements ............................................... 2

Test Equipment ................................................................................ 2
Documentation................................................................................. 3
Software ........................................................................................... 4
Test Conditions ................................................................................ 5

Calibration Procedures ............................................................................ 5

Configuring Your FieldPoint AI Module for Calibration................ 6
Connecting the Calibrator to an FP-TC-120 Module ...................... 10
Connecting the Calibrator to an FP-AI-1xx Module ...................... 11
Connecting the Calibrator to an FP-RTD-122 Module ................... 12
Running the Calibration Executive Procedure................................. 13

Troubleshooting and Common Questions............................................... 14
Technical Support Resources.................................................................. 15

NI Web Support ............................................................................... 15
Worldwide Support.......................................................................... 15

™

Содержание FP-AI-100

Страница 1: ...ion 2 What Is Calibration 2 Why Should You Calibrate 2 How Often Should You Calibrate 2 Equipment and Other Test Requirements 2 Test Equipment 2 Documentation 3 Software 4 Test Conditions 5 Calibration Procedures 5 Configuring Your FieldPoint AI Module for Calibration 6 Connecting the Calibrator to an FP TC 120 Module 10 Connecting the Calibrator to an FP AI 1xx Module 11 Connecting the Calibrator...

Страница 2: ...curacy of electronic components drifts with time and temperature which can affect measurement accuracy as the device ages Calibration restores the device to its specified accuracy and ensures that it still meets National Instruments standards How Often Should You Calibrate The measurement accuracy requirements of your application determine how often you should calibrate a FieldPoint AI module NI r...

Страница 3: ...on standard Documentation This section describes the documentation you need to calibrate a FieldPoint AI module In addition to this calibration procedure you may need to refer to the following documentation Calibration Executive Software User Manual FP 1000 1001 User Manual FP 1000 1001 Quick Start Guide Operating instructions for the AI module You can download these documents from the NI Web site...

Страница 4: ...screen instructions to complete the installation The setup program installs Calibration Executive as well as the associated files listed in Table 2 Complete the following steps to install FieldPoint Explorer 1 Insert the FieldPoint Explorer CD into the CD ROM drive on your computer 2 Choose the Run option from the Start menu on the desktop task bar 3 In the command line box enter x setup exe where...

Страница 5: ... up time of at least 15 minutes to ensure that the measurement circuitry is at a stable operating temperature Calibration Procedures This section explains how to configure and set up the module for calibration and how to run the Calibration Executive procedure Refer to Table 3 for the approximate times to complete the procedure in both automated and manual modes Note For an explanation of automate...

Страница 6: ...libration terminal base power supply and the FieldPoint AI module you are calibrating Build the FieldPoint bank as follows 1 Attach the network module to the calibration terminal base as shown in Figure 1 Figure 1 Connecting FieldPoint Terminal Bases 2 Place the FieldPoint AI module on top of the calibration terminal base 3 Connect the bank to the host computer using an RS 232 cable 4 Select the a...

Страница 7: ...Executive Table 4 Baud Rate Switch Settings for the FP 1000 1001 Switch Positions 6 8 Network Module Baud Rate 300 1 200 2 400 9 600 19 200 38 400 57 600 115 200 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 ...

Страница 8: ...onnector Pinout 6 Launch FieldPoint Explorer 7 Expand the directory tree which is on the left side of the FieldPoint Explorer window see Figure 3 Figure 3 FieldPoint Explorer 8 Right click the FieldPoint icon and select Add a comm resource to this server 9 In the Comm Resource Configuration dialog box which is shown in Figure 4 select the port to which the FieldPoint system is connected Make sure ...

Страница 9: ...e devices found on the network as shown in Figure 5 If you do not see the module that you want to calibrate the network module is not communicating correctly with either the host or the FieldPoint module Figure 5 Expanding the View of the Directory Tree 11 Close FieldPoint Explorer before you go on to the next section You do not need to save the new comm resource ...

Страница 10: ...e calibrator to terminal 1 of the calibration terminal base 2 Connect the negative output voltage of the calibrator to terminal 2 of the calibration terminal base Figure 6 FP TC 120 Connections to Calibrator 1 FP 1000 Network Module 2 TB Cal Calibration Terminal Base 3 Connect to positive output voltage of calibrator 4 Connect to negative output voltage of calibrator 5 Connect to DC V power supply...

Страница 11: ...se 2 Connect the negative output current of the calibrator to terminal 18 of the calibration terminal base Figure 7 FP AI 1xx Connections to Calibrator for Current Offset Testing 1 FP 1000 Network Module 2 FP TB CAL Calibration Terminal Base 3 Connect to positive output current of calibrator 4 Connect to negative output current of calibrator 5 Connect to DC V power supply 6 Connect RS 232 serial c...

Страница 12: ...al 18 While the Calibration Executive procedure runs you are prompted to make additional connections between the calibrator and the module you are calibrating Follow the onscreen instructions at each prompt Figure 8 FP RTD 122 Connections to Calibrator 1 FP 1000 Network Module 2 TB Cal Calibration Terminal Base 3 Connect terminal 2 to terminal 18 4 Connect to positive output of calibrator 5 Connec...

Страница 13: ...dress of the calibrator 3 When the procedure is loaded click Run Procedure to begin 4 Enter the following information in the first dialog box which is titled FieldPoint Bank Configuration Baud Rate The correct rate from Table 4 to communicate with the network module COM Port Number The serial port used to connect to the FP 1000 network module for example COM1 COM2 and so on Device Number The addre...

Страница 14: ...ocedure allow the FieldPoint bank to warm up at least 15 minutes to ensure accurate readings Also make sure you are using shielded copper wire for all cable connections to the module In the FP AI 100 current offset test my test points are significantly out of specification What causes this problem The voltage terminals 1 3 5 7 9 11 13 and 15 on the calibration base might still be connected togethe...

Страница 15: ...the technical support resources on our Web site and still cannot find the answers you need contact your local office or National Instruments corporate For telephone support in the United States dial 512 795 8248 For telephone support outside the United States contact your local branch office Australia 03 9879 5166 Austria 0662 45 79 90 0 Belgium 02 757 00 20 Brazil 011 284 5011 Canada Calgary 403 ...

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