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NI USB-9201/9221 User Guide and Specifications

6

ni.com

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 
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, SCXI, and switch devices, such 
as help files describing device pinouts, features, and operation, and PDF 
files of the printed device documents. 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 also download these documents at 

ni.com/manuals

.

Summary of Contents for NI USB-9201

Page 1: ...d to inclusively as the NI USB 9201 9221 Introduction The NI USB 9210 9221 data acquisition device provides a USB interface for eight channels of 12 bit analog inputs with integrated signal conditioni...

Page 2: ...in Millimeters Inches Figure 3 NI USB 9201 9221 D SUB Devices in Millimeters Inches 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...

Page 3: ...201 9221 is not certified for use in hazardous locations Safety Guidelines for Hazardous Voltages You can connect hazardous voltages to the NI USB 9201 9221 with the screw terminal only Do not connect...

Page 4: ...onments Select Start All Programs National Instruments NI DAQ NI DAQmx Help LabVIEW If you are a new user use the Getting Started with LabVIEW manual to familiarize yourself with the LabVIEW graphical...

Page 5: ...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 based on your task...

Page 6: ...entation 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 Library R...

Page 7: ...tallation instructions that accompany your software Example Programs The NI DAQmx CD contains example programs that you can use to get started programming with the NI USB 9201 9221 Refer to the NI DAQ...

Page 8: ...gure 4 Module Installation 4 Squeeze the latches and insert the NI 9201 9221 module into the NI USB 9162 carrier 5 Press firmly on the connector side of the NI 9201 9221 module until the latches lock...

Page 9: ...nts NI DAQ for more information LED Indicator The NI USB 9201 9221 device has a green LED next to the USB connector The LED indicator indicates device status as listed in Table 1 When the device is co...

Page 10: ...cted or in suspend On not blinking Device connected but no module installed Single blink Operating normally Double blink Connected to USB Full Speed port Device performance might be affected Refer to...

Page 11: ...or pin COM that is internally connected to the isolated ground reference of the module Refer to Table 3 for the terminal assignments of the NI USB 9201 9221 with screw terminal Refer to Figure 7 for...

Page 12: ...nnect the ground signal to COM Figure 8 Connecting a Single Ended Voltage Signal to the NI USB 9201 9221 Refer to your software documentation accessible from Start All Programs National Instruments NI...

Page 13: ...e installed when using hazardous voltages 42 4 Vpk 60 VDC Refer to Figure 9 while completing the following steps to assemble the backshell 1 Connect the leads to the screw terminal and secure with the...

Page 14: ...Circuitry for One Channel Specifications The following specifications are typical for the range 0 to 60 C unless otherwise noted All voltages are relative to COM unless otherwise noted Input Characte...

Page 15: ...Vrms 5 seconds max D SUB 1 000 Vrms 5 seconds max Overvoltage protection AI to COM 100 V Accuracy2 1 Refer to the Safety section for details about safe operating voltages 2 Excludes noise Error Percen...

Page 16: ...9221 950 kHz min Input impedance Resistance 1 M Capacitance 5 pF Input noise code centered RMS 0 7 LSBrms Peak to peak 5 LSB No missing codes 12 bits DNL 0 9 to 1 5 LSB INL 1 5 LSB Crosstalk 75 dB 10...

Page 17: ...Safety If you need to clean the module wipe it with a dry towel Safety Voltages Maximum Voltage Connect only voltages that are within these limits AI to COM 60 VDC Isolation Voltages for NI USB 9201 9...

Page 18: ...rcuits powered by regulated low voltage sources and electronics Do not use this module with Measurement Category II III or IV voltages Safety Standards This product is designed to meet the requirement...

Page 19: ...Low Voltage Directive safety 2004 108 EC Electromagnetic Compatibility Directive EMC Note Refer to the Declaration of Conformity DoC for this product for any additional regulatory compliance informat...

Page 20: ...formation about WEEE recycling centers and National Instruments WEEE initiatives visit ni com environment weee htm Calibration You can obtain the calibration certificate for the NI USB 9201 9221 at ni...

Page 21: ...ational Instruments also has offices located around the world to help address your support needs For telephone support in the United States create your service request at ni com support and follow the...

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