National Instruments USB-9211A User manual

National Instruments USB-9211 Manual
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USER GUIDE AND SPECIFICATIONS
NI USB-9211/9211A
4-Channel, 24-Bit Thermocouple Input Devices
This user guide describes how to use the National Instruments
USB-9211/9211A devices and lists the specifications.
Introduction
The NI USB-9211/9211A data acquisition device provides a USB interface
for four channels of 24-bit thermocouple inputs with integrated signal
conditioning.
The NI USB-9211 consists of two components: an NI 9211 module and an
NI USB-9161 carrier, as shown in Figure 1. The NI USB-9211A consists
of two components: an NI 9211 module and an NI USB-9162 carrier,
as shown in Figure 1.
Figure 1. NI USB-9211/9211A Components
NI 9211
NI USB-9161/9162
NI USB-9211/9211A

NI USB-9211/9211A User Guide and Specifications 2 ni.com
Dimensions
Figure 2 shows the NI USB-9211/9211A device dimensions.
Figure 2. NI USB-9211/9211A Device in Millimeters (Inches)
Safety Guidelines
Operate the NI USB-9211/9211A only as described in these operating
instructions.
Note Although the NI 9211 module may have more stringent certification standards than
the NI USB-9211/9211A, when used with the NI USB-9161/9162 carrier, the combined
system may be limited. Refer to the Specifications section for more details.
Hot Surface This icon denotes that the component may be hot. Touching this component
may result in bodily injury.
Caution Do not disconnect I/O-side wires or connectors unless power has been switched
off or the area is known to be nonhazardous.
Caution Do not remove modules unless power has been switched off or the area is known
to be nonhazardous.
Caution The NI USB-9211/9211A is not certified for use in hazardous locations.
Hi-Speed USB Carrier
NI USB-9162
140.23 mm
(5.521 in.)
137.82 mm
(5.426 in.)
120.68 mm
(4.751 in.)
118.26 mm
(4.656 in.)
88.12 mm
(3.469 in.)
25.34 mm
(0.998 in.)

©National Instruments Corporation 3 NI USB-9211/9211A User Guide and Specifications
Safety Guidelines for Hazardous Voltages
If hazardous voltages are connected to the module, take the following
precautions. A hazardous voltage is a voltage greater than 42.4 Vpk or
60 VDC to earth ground.
Caution Ensure that hazardous voltage wiring is performed only by qualified personnel
adhering to local electrical standards.
Caution Do not mix hazardous voltage circuits and human-accessible circuits on the same
module.
Caution Make sure that devices and circuits connected to the module are properly
insulated from human contact.
Caution When module terminals are live with hazardous voltages, make sure that the
terminals are not accessible by using the high voltage screw terminal enclosure. Refer to
the Assembling the High Voltage Screw Terminal Backshell section for more information.
Related Documentation
Each application software package and driver includes information about
writing applications for taking measurements and controlling measurement
devices. The following references to documents assume you have
NI-DAQmx 8.7 or later, NI-DAQmx Base 3.x, and where applicable,
version 7.1 or later of the NI application software.
NI-DAQmx for Windows
The DAQ Getting Started Guide describes how to install your NI-DAQmx
for Windows software, how to install your NI-DAQmx-supported DAQ
device, and how to confirm that your device is operating properly. Select
Start»All Programs»National Instruments»NI-DAQ»DAQ Getting
Started Guide.
The NI-DAQ Readme lists which devices are supported by this version of
NI-DAQ. Select Start»All Programs»National Instruments»NI-DAQ»
NI-DAQ Readme.
The NI-DAQmx Help contains general information about measurement
concepts, key NI-DAQmx concepts, and common applications that
are applicable to all programming environments. Select Start»
All Programs»National Instruments»NI-DAQ»NI-DAQmx Help.
Note For information about non-Windows operating system support, refer to
ni.com/info and enter BaseGSGML.

NI USB-9211/9211A User Guide and Specifications 4 ni.com
LabVIEW
If you are a new user, use the Getting Started with LabVIEW manual to
familiarize yourself with the LabVIEW graphical programming
environment and the basic LabVIEW features you use to build data
acquisition and instrument control applications. Open the Getting Started
with LabVIEW manual by selecting Start»All Programs»National
Instruments»LabVIEW»LabVIEW Manuals or by navigating to the
labview\manuals directory and opening LV_Getting_Started.pdf.
Use the LabVIEW Help, available by selecting Help»Search the
LabVIEW Help in LabVIEW, to access information about LabVIEW
programming concepts, step-by-step instructions for using LabVIEW, and
reference information about LabVIEW VIs, functions, palettes, menus, and
tools. Refer to the following locations on the Contents tab of the LabVIEW
Help for information about NI-DAQmx:
•Getting Started»Getting Started with DAQ—Includes overview
information and a tutorial to learn how to take an NI-DAQmx
measurement in LabVIEW using the DAQ Assistant.
•VI and Function Reference»Measurement I/O VIs and
Functions—Describes the LabVIEW NI-DAQmx VIs and properties.
•Taking Measurements—Contains the conceptual and how-to
information you need to acquire and analyze measurement data in
LabVIEW, including common measurements, measurement
fundamentals, NI-DAQmx key concepts, and device considerations.
LabWindows/CVI
The Data Acquisition book of the LabWindows/CVI Help contains
measurement concepts for NI-DAQmx. This book also contains Taking an
NI-DAQmx Measurement in LabWindows/CVI, which includes
step-by-step instructions about creating a measurement task using the DAQ
Assistant. In LabWindows™/CVI™, select Help»Contents, then select
Using LabWindows/CVI»Data Acquisition.
The NI-DAQmx Library book of the LabWindows/CVI Help contains
API overviews and function reference for NI-DAQmx. Select Library
Reference»NI-DAQmx Library in the LabWindows/CVI Help.
Measurement Studio
If you program your NI-DAQmx-supported device in Measurement Studio
using Visual C++, Visual C#, or Visual Basic .NET, you can interactively
create channels and tasks by launching the DAQ Assistant from MAX or
from within Visual Studio .NET. You can generate the configuration code

©National Instruments Corporation 5 NI USB-9211/9211A User Guide and Specifications
based on your task or channel in Measurement Studio. Refer to the DAQ
Assistant Help for additional information about generating code. You also
can create channels and tasks, and write your own applications in your
ADE using the NI-DAQmx API.
For help with NI-DAQmx methods and properties, refer to the NI-DAQmx
.NET Class Library or the NI-DAQmx Visual C++ Class Library included
in the NI Measurement Studio Help. For general help with programming in
Measurement Studio, refer to the NI Measurement Studio Help, which is
fully integrated with the Microsoft Visual Studio .NET help. To view
this help file in Visual Studio. NET, select Measurement Studio»
NI Measurement Studio Help.
To create an application in Visual C++, Visual C#, or Visual Basic .NET,
follow these general steps:
1. In Visual Studio .NET, select File»New»Project to launch the New
Project dialog box.
2. Find the Measurement Studio folder for the language you want to
create a program in.
3. Choose a project type. You add DAQ tasks as a part of this step.
ANSI C without NI Application Software
The NI-DAQmx Help contains API overviews and general information
about measurement concepts. Select Start»All Programs»National
Instruments»NI-DAQ»NI-DAQmx Help.
The NI-DAQmx C Reference Help describes the NI-DAQmx Library
functions, which you can use with National Instruments data acquisition
devices to develop instrumentation, acquisition, and control applications.
Select Start»All Programs»National Instruments»NI-DAQ»
NI-DAQmx C Reference Help.
.NET Languages without NI Application Software
With the Microsoft .NET Framework version 1.1 or later, you can use
NI-DAQmx to create applications using Visual C# and Visual Basic
.NET without Measurement Studio. You need Microsoft Visual Studio
.NET 2003 or Microsoft Visual Studio 2005 for the API documentation to
be installed.
The installed documentation contains the NI-DAQmx API overview,
measurement tasks and concepts, and function reference. This help is fully
integrated into the Visual Studio .NET documentation. To view the
NI-DAQmx .NET documentation, go to Start»Programs»National
Instruments»NI-DAQ»NI-DAQmx .NET Reference Help. Expand
NI Measurement Studio Help»NI Measurement Studio .NET Class

NI USB-9211/9211A User Guide and Specifications 6 ni.com
Library»Reference to view the function reference. Expand
NI Measurement Studio Help»NI Measurement Studio .NET Class
Library»Using the Measurement Studio .NET Class Libraries to view
conceptual topics for using NI-DAQmx with Visual C# and Visual Basic
.NET.
To get to the same help topics from within Visual Studio, go to Help»
Contents. Select Measurement Studio from the Filtered By drop-down
list and follow the previous instructions.
Device Documentation and Specifications
NI-DAQmx includes the Device Document Browser, which contains online
documentation for supported DAQ and SCXI devices, such as documents
describing device pinouts, features, and operation. You can find, view,
and/or print the documents for each device using the Device Document
Browser at any time by inserting the CD. After installing the Device
Document Browser, device documents are accessible from Start»
All Programs»National Instruments»NI-DAQ»Browse Device
Documentation.
Note You can download these documents at ni.com/manuals.
NI-DAQmx Base (Linux/Mac OS X/LabVIEW PDA 8.x)
The NI-DAQmx Base Getting Started Guide describes how to install your
NI-DAQmx Base software, your NI-DAQmx Base-supported DAQ device,
and how to confirm that your device is operating properly. In Windows,
select Start»All Programs»National Instruments»NI-DAQmx Base»
Documentation»Getting Started Guide.
Getting Started with NI-DAQmx Base for Linux and Mac Users describes
how to install your NI-DAQmx Base software, your NI-DAQmx
Base-supported DAQ device, and how to confirm that your device is
operating properly on your Mac/Linux machine.
The NI-DAQmx Base Readme lists which devices are supported by this
version of NI-DAQmx Base. In Windows, select Start»All Programs»
National Instruments»NI-DAQmx Base»DAQmx Base Readme.
The NI-DAQmx Base VI Reference Help contains VI reference and general
information about measurement concepts. In LabVIEW, select Help»
NI-DAQmx Base VI Reference Help.
The NI-DAQmx Base C Reference Help contains C reference and general
information about measurement concepts. In Windows, select Start»
All Programs»National Instruments»NI-DAQmx

©National Instruments Corporation 7 NI USB-9211/9211A User Guide and Specifications
Base»Documentation»
C Function Reference Help.
Note All NI-DAQmx Base documentation for Linux is installed at /usr/local/
natinst/nidaqmxbase/documentation.
Note All NI-DAQmx Base documentation for Mac OS X is installed at /Applications/
National Instruments/NI-DAQmx Base/documentation.
Training Courses
If you need more help getting started developing an application with
NI products, NI offers training courses. To enroll in a course or obtain a
detailed course outline, refer to ni.com/training.
Technical Support on the Web
For additional support, refer to ni.com/support or zone.ni.com.
Installing the Software
Software support for the NI USB-9211/9211A for Windows
Vista/XP/2000 is provided by NI-DAQmx or NI-DAQmx Base depending
on the software you are using. Software support for your hardware depends
on the carrier being used. Refer to Table 1 for a list of software support.
The DAQ Getting Started Guide, which you can download at ni.com/
manuals, offers NI-DAQmx users step-by-step instructions for installing
software and hardware, configuring channels and tasks, and getting started
developing an application.
Note For information about non-Windows operating system support, refer to ni.com/
info and enter BaseGSGML.
Table 1. Devices and Corresponding Components
Device Carrier Software Support
NI USB-9211 NI USB-9161 NI-DAQmx Base 2.2 and previous
NI USB-9211A NI USB-9162 NI-DAQmx or NI-DAQmx Base 3.0 and later

NI USB-9211/9211A User Guide and Specifications 8 ni.com
Installing Other Software
If you are using other software, refer to the installation instructions that
accompany your software.
Note If your device uses NI-DAQmx Base, refer to ni.com to download the software.
Example Programs
The NI-DAQmx CD contains example programs that you can use to get
started programming with the NI USB-9211A. Refer to the NI-DAQmx for
USB Devices Getting Started Guide that shipped with your device, and is
also accessible from Start»All Programs»National Instruments»
NI-DAQ,for more information.
The NI-DAQmx Base software ships with example programs you can use
to get started programming with the NI USB-9211/9211A. Refer to the
NI-DAQmx Base Getting Started Guide that shipped with your device, and
is also accessible from Start»All Programs»National Instruments»
NI-DAQmx Base»Documentation, for more information.
Installing the NI USB-9211/9211A Device
Before installing the device, you must install the software you plan to use
with the device. Refer to the Installing the Software section of this guide
and the documentation included with the software for more information.
Installing the NI 9211 in the NI USB-9161/9162 Carrier
The NI 9211 module and the NI USB-9161/9162 carrier are packaged
separately. Refer to Figure 3, while completing the following assembly
steps:
1. Make sure that no signals are connected to the NI 9211 module and the
USB cable is not connected to the device.
2. Remove the protective cover from the 15-pin D-SUB connector.

©National Instruments Corporation 9 NI USB-9211/9211A User Guide and Specifications
3. Align the I/O module with the carrier, as shown in Figure 3.
Figure 3. Module Installation
4. Squeeze the latches and insert the NI 9211 module into the carrier.
5. Press firmly on the connector side of the NI 9211 module until the
latches lock the module into place, as shown in Figure 4.
Figure 4. Locking Module into Place
1 High Voltage Screw Terminal Backshell
1