Data Translation DT9828 Manual de usuario

DT9828 User’s Manual

UM-24984-A

Title Page

First Edition

January, 2013

Data Translation, Inc.

100 Locke Drive

Marlboro, MA 01752-1192

(508) 481-3700

www.datatranslation.com

Fax: (508) 481-8620

E-mail: [email protected]

Information furnished by Data Translation, Inc. is believed to be

accurate and reliable; however, no responsibility is assumed by

Data Translation, Inc. for its use; nor for any infringements of

patents or other rights of third parties which may result from its

use. No license is granted by implication or otherwise under any

patent rights of Data Translation, Inc.

Use, duplication, or disclosure by the United States Government

is subject to restrictions as set forth in subparagraph (c)(1)(ii) of

the Rights in Technical Data and Computer software clause at 48

C.F.R, 252.227-7013, or in subparagraph (c)(2) of the Commercial

Computer Software - Registered Rights clause at 48 C.F.R.,

52-227-19 as applicable. Data Translation, Inc., 100 Locke Drive,

Marlboro, MA 01752.

Data Translation® is a registered trademark of Data Translation,

Inc. DT-Open LayersTM, DT-Open Layers for .NET Class

LibraryTM, DataAcq SDKTM, OMNI CDTM, LV-LinkTM , and

QuickDAQTM are trademarks of Data Translation, Inc.

All other brand and product names are trademarks or registered

trademarks of their respective companies.

Radio and Television Interference

This equipment has been tested and found to comply with CISPR EN55022 Class A and

EN61000-6-1 requirements and also with the limits for a Class A digital device, pursuant to

Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against

harmful interference when the equipment is operated in a commercial environment. This

equipment generates, uses, and can radiate radio frequency energy and, if not installed and

used in accordance with the instruction manual, may cause harmful interference to radio

communications. Operation of this equipment in a residential area is likely to cause harmful

interference, in which case the user will be required to correct the interference at his own

expense.

Changes or modifications to this equipment not expressly approved by Data Translation could

void your authority to operate the equipment under Part 15 of the FCC Rules.

Note: This product was verified to meet FCC requirements under test conditions that

included use of shielded cables and connectors between system components. It is important

that you use shielded cables and connectors to reduce the possibility of causing interference

to radio, television, and other electronic devices.

Canadian Department of Communications Statement

This digital apparatus does not exceed the Class A limits for radio noise emissions from

digital apparatus set out in the Radio Interference Regulations of the Canadian Department of

Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites

applicables aux appareils numériques de la class A prescrites dans le Règlement sur le

brouillage radioélectrique édicté par le Ministère des Communications du Canada.

FCC

Page

Table of Contents

About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Intended Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

How this Manual is Organized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Conventions Used in this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Related Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Where To Get Help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Chapter 1: Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Supported Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Getting Started Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Chapter 2: Installing a Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Attaching Modules to the Computer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Connecting Directly to the USB Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Connecting to an Expansion Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Configuring the Device Driver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Chapter 3: Wiring Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

General Wiring Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Connecting Thermocouple Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Connecting Voltage Input Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Connecting Current Loop Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Connecting Digital Input Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Connecting Digital Output Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Chapter 4: Verifying the Operation of a Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Selecting the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Thermocouple Measurement Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Configure the Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Configure the Parameters of the Acquisition Config Window . . . . . . . . . . . . . . . . . . . 46

Configure the Appearance of the Channel Plot Window . . . . . . . . . . . . . . . . . . . . . . . . 48

Configure the Appearance of the Channel Display Window. . . . . . . . . . . . . . . . . . . . . 50

Configure the Appearance of the Statistics Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Position the Windows. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Start the Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Table of Contents

Contents

Chapter 5: Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Analog Input Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Analog Input Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Specifying a Single Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Specifying One or More Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Cold Junction Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Open Thermocouple Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Input Ranges and Gains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Input Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

A/D Sample Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Input Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Analog Input Conversion Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Single-Value Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Continuous Scan Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Filtering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Digital I/O Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Digital Input Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Digital Output Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Resolution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Operation Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Chapter 6: Supported Device Driver Capabilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Data Flow and Operation Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Buffering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Triggered Scan Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Data Encoding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Thermocouple and RTD Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

IEPE Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Strain Gage Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Start Triggers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Reference Triggers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Clocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Counter/Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Contents

Chapter 7: Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

About Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Running the Calibration Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Calibrating the Voltage Offset and Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Calibrating the CJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Chapter 8: Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

General Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

If Your Module Needs Factory Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Appendix A: Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Basic Module Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Thermocouple Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

System Temperature Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Temperature Measurement Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Thermocouple Noise Calculation Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Voltage Measurement Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Input Signal Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Digital I/O Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Isolation and Protection Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Power, Physical, and Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Terminal Block Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Regulatory Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Appendix B: Pin Assignments and LED Status Indicators . . . . . . . . . . . . . . . . . . . 107

Analog Input Screw Terminal Block (TB1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Digital I/O Screw Terminal Block (TB2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

USB Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

LED Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Contents

About this Manual

The first part of this manual describes how to install and set up your DT9828 module and

device driver, and verify that your module is working properly.

The second part of this manual describes the features of the DT9828 module, the capabilities of

the DT9828 Device Driver, and how to program the DT9828 module using the DT-Open

Layers for .NET Class Library™software. Troubleshooting and calibration information is also

provided.

Note: For information on checking system requirements, installing the software, and

viewing the documentation, refer to the README file on the OMNI CD.

For more information on the class library, refer to the DT-Open Layers for .NET Class Library

User’s Manual. If you are using the DataAcq SDK or a software application to program your

device, refer to the documentation for that software for more information.

Intended Audience

This document is intended for engineers, scientists, technicians, or others responsible for

using and/or programming the DT9828 module for data acquisition operations in the

Microsoft® Windows® XP, or Windows Vista®, Windows 7, or Windows 8 operating system.

It is assumed that you have some familiarity with data acquisition principles and that you

understand your application.

How this Manual is Organized

The manual is organized as follows:

•Chapter 1, “Overview,” describes the major features of the DT9828 module, as well as the

supported software and accessories for the modules.

•Chapter 2, “Installing a Module,” describes how to install a DT9828 module.

•Chapter 3, “Wiring Signals,” describes how to wire signals to a DT9828 module.

•Chapter 4, “Verifying the Operation of a Module,” describes how to verify the operation

of the DT9828 module with the QuickDAQ application.

•Chapter 5, “Principles of Operation,” describes all of the features of the DT9828 module

and how to use them in your application.

•Chapter 6, “Supported Device Driver Capabilities,” lists the data acquisition subsystems

and the associated features accessible using the DT9828 Device Driver.

•Chapter 7, “Calibration,” describes how to calibrate the analog input circuitry of the

DT9828 module.

•Chapter 8, “Troubleshooting,” provides information that you can use to resolve problems

with the modules and the device driver, should they occur.

About this Manual

•Appendix A, “Specifications,” lists the specifications of the modules.

•Appendix B, “Pin Assignments and LED Status Indicators,” shows the pin assignments

for the connectors and screw terminals on the modules, and describes the LEDs on the

modules.

• An index completes this manual.

Conventions Used in this Manual

The following conventions are used in this manual:

• Notes provide useful information or information that requires special emphasis, cautions

provide information to help you avoid losing data or damaging your equipment, and

warnings provide information to help you avoid catastrophic damage to yourself or your

equipment.

• Items that you select or type are shown in bold.

Related Information

Refer to the following documents for more information on using the DT9828 module:

•Benefits of the Universal Serial Bus for Data Acquisition. This white paper describes why USB

is an attractive alternative for data acquisition. It is available on the Data Translation web

site (www.datatranslation.com).

•QuickDAQ 2103 User’s Manual (UM-24774). This manual describes how to create a

QuickDAQ application to acquire and analyze data from a DT9282 module.

•DT-Open Layers for .NET User’s Manual (UM-22161). For programmers who are developing

their own application programs using Visual C# or Visual Basic .NET, this manual

describes how to use the DT-Open Layers for .NET Class Library to access the capabilities

of Data Translation data acquisition devices.

•DataAcq SDK User’s Manual (UM-18326). For programmers who are developing their own

application programs using the Microsoft C compiler, this manual describes how to use

the DT-Open Layers DataAcq SDKTM to access the capabilities of Data Translation data

acquisition devices.

•DAQ Adaptor for MATLAB (UM-22024). This document describes how to use Data

Translation’s DAQ Adaptor to provide an interface between the MATLAB Data

Acquisition subsystem from The MathWorks and Data Translation’s DT-Open Layers

architecture.

•LV-Link Online Help. This help file describes how to use LV-Link™with the LabVIEW™

graphical programming language to access the capabilities of Data Translation data

acquisition devices.

• Microsoft Windows XP, Windows Vista, Windows 7, or Windows 8 documentation.

• USB web site (http://www.usb.org).

• Omega Complete Temperature Measurement Handbook and Encyclopedia®. This document,

published by Omega Engineering, provides information on how to linearize voltage

values into temperature readings for various thermocouple types.

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