National Instruments Network Card USB 9201 User Manual

USER GUIDE AND SPECIFICATIONS  
USB-9201/9221  
8-Channel, 12-Bit Analog Input Devices  
This user guide describes how to use the National Instruments  
USB-9201/9221 devices and lists the specifications.  
Introduction  
This user guide describes how to use the National Instruments  
USB-9201/9221. In this document, the USB-9201/9221 with screw  
terminal and USB-9201/9221 with DSUB are referred to inclusively as the  
USB-9201/9221. For information about installing, configuring, and  
programming your system, refer to your system documentation.  
The USB-9210/9221 data acquisition device provides a USB interface for  
eight channels of 12-bit analog inputs with integrated signal conditioning.  
The USB-9201/9211 consists of two components: an NI 9201/9221  
module and a USB-9162 carrier, as shown in Figure 1.  
NI 9201/9221  
H i - S p e e d U S B C a r r i e r  
N
I
U
S
B - 9 1 6 2  
USB-9162  
H i - S P  
N
I
U
S B - 9 1 6 2 e e d U S B C a r r i e  
r
USB-9201/9221  
Figure 1. USB-9201/9221 Components  
 
Safety Guidelines  
Operate the USB-9201/9221 only as described in these operating  
instructions.  
Caution Although the NI 9201/9221 might have more stringent certification standards  
than the USB-9201/9221, when used with the USB-9162 carrier, the combined system  
might be limited. Refer to the Specifications section for more information.  
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 and the area is known  
to be nonhazardous.  
Caution The USB-9201/9221 is not certified for use in hazardous locations.  
Safety Guidelines for Hazardous Voltages  
You can connect hazardous voltages to the USB-9201/9221 with the screw  
terminal only. Do not connect hazardous voltages to the USB-9201/9221  
with DSUB.  
If hazardous voltages are connected to the module, take the following  
precautions. A hazardous voltage is a voltage >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 backshell. Refer to  
the Assembling the High Voltage Screw Terminal Backshell section for more information.  
© National Instruments Corporation  
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USB-9201/9221 User Guide and Specifications  
 
Software  
Software support for the USB-9201/9221 is provided by NI-DAQmx.  
The NI-DAQmx CD contains example programs that you can use to get  
started programming with the USB-9201/9221. 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.  
Installing the USB-9201/9221  
Installing the Software  
Before installing the device, you must install the software you plan to use  
with the device. Refer to the Software section of this guide and 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.  
Installing the NI 9201/9221 in the USB-9162 Carrier  
The NI 9201/9221 module and the USB-9162 carrier are packaged  
separately. Refer to Figure 2, while completing the following assembly  
steps:  
1. Make sure that no signals are connected to the NI 9201/9221 module  
and that the USB cable is not connected to the device.  
2. Remove the protective cover from the 15-pin DSUB connector.  
3. Align the I/O module with the carrier, as shown in Figure 4.  
USB-9201/9221 User Guide and Specifications  
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1
1
High Voltage Screw Terminal Backshell  
Figure 4. Module Installation  
4. Squeeze the latches and insert the NI 9201/9221 module into the  
USB-9162 carrier.  
5. Press firmly on the connector side of the NI 9201/9221 module until  
the latches lock the module into place, as shown in Figure 5.  
Figure 5. Locking Module into Place  
6. Connect the USB cable to the assembled USB-9201/9221.  
© National Instruments Corporation  
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USB-9201/9221 User Guide and Specifications  
 
   
Mounting the USB-9201/9221 to a Panel  
Threaded inserts are located in the USB-9201/9221 for mounting it to a  
panel. Refer to Figure 6 for dimensions.  
85.7 mm  
(3.37 in.)  
72.2 mm  
(2.84 in.)  
Threaded Insert  
M3 x 0.5  
8.5 mm (0.34 in.) Max Depth  
76.1 mm  
(3.00 in.)  
Figure 6. Module Dimensions  
Connecting the USB-9201/9221 to a Computer  
Plug one end of the USB cable into the USB-9201/9221 and the other end  
into an available USB port on the computer. 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.  
LED Indicator  
The LED indicator indicates device status.  
Table 1. LED State/Device Status  
LED State  
Not lit  
Device Status  
Device not connected or in suspend.  
Device connected, but no module installed.  
Operating normally.  
On, not blinking  
Single-blink  
USB-9201/9221 User Guide and Specifications  
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Table 1. LED State/Device Status (Continued)  
LED State  
Device Status  
Double-blink  
Connected to USB full speed port. Device  
performance might be affected. Refer to the  
Specifications section for more information.  
Quadruple-blink  
Device error. Refer to ni.com/support.  
Wiring the USB-9201/9221  
The USB-9201/9221 provides connections for eight analog input channels.  
The USB-9201/9221 with screw terminal has a 10-terminal, detachable  
high voltage screw-terminal backshell. The USB-9201/9221 with DSUB  
has a 25-pin DSUB connector.  
Each channel has a terminal or pin, AI, to which you can connect a voltage  
signal. The USB-9201/9221 also has a common terminal or pin, COM, that  
is internally connected to the isolated ground reference of the module.  
Refer to Table 2 for the terminal assignments of the USB-9201/9221 with  
screw terminal. Refer to Figure 7 for the pin assignments of the  
USB-9201/9221 with DSUB.  
Caution The high voltage screw terminal backshell must be installed when using  
hazardous voltages (>42.4 Vpk, 60 VDC).  
© National Instruments Corporation  
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USB-9201/9221 User Guide and Specifications  
 
Table 2. Terminal Assignments  
Module  
Terminal  
Signal  
AI 0  
0
1
2
3
4
5
6
7
8
9
AI 1  
AI 2  
0
AI 3  
1
2
AI 4  
3
4
5
AI 5  
6
AI 6  
7
8
9
AI 7  
No connection  
Common (COM)  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
COM  
NC  
COM  
COM  
NC  
COM  
COM  
NC  
COM  
COM  
NC  
AI0  
NC  
AI1  
AI2  
NC  
AI3  
AI4  
NC  
AI5  
AI6  
NC  
AI7  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
COM  
COM  
Figure 7. Pin Assignments  
USB-9201/9221 User Guide and Specifications  
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Assembling the High Voltage Screw Terminal Backshell  
The high voltage screw terminal backshell must be installed when using  
hazardous voltages (>42.4 Vpk, 60 VDC). Refer to Figure 8 while  
completing the following steps:  
1. Connect the leads to the screw terminal and secure with the strain  
relief.  
2. Finish by snapping the backshell around the connector.  
1
1
Strain Relief  
Figure 8. High Voltage Screw Terminal Backshell  
Connecting Single-Ended Voltage Signals to the USB-9201/9221  
You can connect single-ended voltage signals to the USB-9201/9221.  
Connect the positive lead of the voltage signal to AI. Connect the ground  
signal to COM.  
AI  
+
Voltage  
Source  
USB-9201/9221  
COM  
Figure 9. Connecting a Single-Ended Voltage Signal to the USB-9201/9221  
© National Instruments Corporation  
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USB-9201/9221 User Guide and Specifications  
 
   
Refer to your software documentation, accessible from Start»  
All Programs»National Instruments»NI-DAQ, for information about  
different methods of reading USB-9201/9221 data.  
USB-9201/9221 Circuitry  
The USB-9201/9221 channels are isolated, and the device protects each  
channel from overvoltages. The input signals are scanned, buffered,  
conditioned, and then sampled by a single 12-bit ADC. For more  
information about overvoltage protection, refer to the Specifications  
section.  
AI 0  
Overvoltage  
Protection  
Isolated  
ADC  
Mux  
AI 7  
Buffer  
COM  
USB-9201/9221  
Figure 10. Input 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 Characteristics  
Number of channels................................8  
ADC resolution.......................................12 bits  
Type of ADC ..........................................Successive approximation  
register (SAR)  
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Sample rate (aggregate)1  
USB-9201  
Single channel.......................... 800 kS/s max  
Scanning .................................. 500 kS/s  
USB-9221 ....................................... 800 kS/s max  
Operating voltage ranges2  
USB-9201 ....................................... 10 V (not software selectable)  
USB-9221 ....................................... 60 V (not software selectable)  
Maximum voltage, (AI or COM to earth ground, verified by a dielectric  
withstand test)  
Screw terminal ................................ 250 Vrms  
DSUB.............................................. 60 VDC  
Isolation voltage (AI or COM to earth ground, verified by a dielectric  
withstand test)  
Screw terminal ................................ 2,300 Vrms  
DSUB.............................................. 1,000 Vrms  
Overvoltage protection  
(AI to COM)........................................... 100 V  
Accuracy3  
Percent of  
Reading  
Percent of  
Range*  
Error  
USB-9201  
Calibrated typ (25 °C, 5 °C)  
Calibrated max (0 to 60 °C)  
Uncalibrated typ (25 °C, 5 °C)  
Uncalibrated max (0 to 60 °C)  
0.04%  
0.25%  
0.26%  
0.67%  
0.07%  
0.25%  
0.46%  
1.25%  
USB-9221  
Calibrated typ (25 °C, 5 °C)  
Calibrated max (0 to 60 °C)  
0.04%  
0.25%  
0.07%  
0.25%  
1
2
3
Full performance requires the use of a USB 2.0 high-speed host controller and USB 2.0 hubs.  
Refer to the Safety section for details about safe operating voltages.  
Excludes noise.  
© National Instruments Corporation  
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USB-9201/9221 User Guide and Specifications  
 
Percent of  
Reading  
Percent of  
Range*  
Error  
Uncalibrated typ (25 °C, 5 °C)  
Uncalibrated max (0 to 60 °C)  
0.26%  
0.67%  
0.43%  
1.06%  
* Range equals 10.53 V for the USB-9201, 62.50 V for the USB-9221.  
Stability  
Offset drift  
USB-9201................................. 100 μV/°C  
USB-9221................................. 580 μV/°C  
Gain drift ......................................... 34 ppm/°C  
Input bandwidth (–3 dB)  
USB-9201........................................690 kHz min  
USB-9221........................................950 kHz min  
Input impedance  
Resistance........................................1 MΩ  
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 kHz  
Settling time (to 1 LSB)  
USB-9201........................................2 μs  
USB-9221........................................1.25 μs  
Power Requirements  
Power consumption from USB...............500 mA, max  
Suspend mode..................................2.5 mA, max  
Bus Interface  
USB specification...................................USB 2.0 high speed  
USB-9201/9221 User Guide and Specifications  
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Physical Characteristics  
If you need to clean the module, wipe it with a dry towel.  
Dimensions  
With combicon................................ 14.0 cm × 8.8 cm × 2.5 cm  
........................................................ (5.52 in. × 3.47 in. × 1.00 in.)  
25-pin DSUB .................................. 12.6 cm × 8.8 cm × 2.5 cm  
........................................................ (4.95 in. × 3.47 in. × 1.00 in.)  
Screw-terminal wiring............................ 12 to 24 AWG copper conductor  
wire with 10 mm (0.39 in.) of  
insulation stripped from the end  
Torque for screw terminals .................... 0.5 – 0.6 N · m (4.4 – 5.3 lb · in.)  
Weight  
USB-9201/9221 with combicon ..... Approx. 250 g (8.8 oz)  
USB-9201/9221 with DSUB .......... Approx. 245 g (8.6 oz)  
Safety  
Maximum Voltage  
Connect only voltages that are within these limits.  
AI to COM ............................................. 60 VDC  
Isolation Voltages for USB-9201/9221 with Screw  
Terminals  
Channel-to-channel isolation ................. None  
Channel-to-earth ground isolation  
Continuous...................................... 250 Vrms, Measurement  
Category II  
Withstand........................................ 2,300 Vrms, verified by a  
dielectric withstand test  
Measurement Category II is for measurements performed on circuits  
directly connected to the electrical distribution system. This category refers  
to local-level electrical distribution, such as that provided by a standard  
wall outlet (for example, 115 V for U.S. or 230 V for Europe). Do not use  
this module with Measurement Category III or IV voltages.  
© National Instruments Corporation  
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USB-9201/9221 User Guide and Specifications  
 
 
Isolation Voltages for USB-9201/9221 with DSUB  
Channel-to-channel.................................None  
Channel-to-earth ground  
Continuous.......................................60 VDC, Measurement  
Category I  
Withstand.........................................1,000 Vrms, verified by a  
dielectric withstand test  
Measurement Category I is for measurements performed on circuits not  
directly connected to the electrical distribution system referred to as  
MAINS voltage. MAINS is a hazardous live electrical supply system that  
powers equipment. This category is for measurements of voltages from  
specially protected secondary circuits. Such voltage measurements include  
signal levels, special equipment, limited-energy parts of equipment,  
circuits powered by regulated low-voltage sources, and electronics. Do not  
use this module with Measurement Category II, III, or IV voltages.  
Safety Standards  
The USB-9201/9221 is designed to meet the requirements of the following  
standards of safety for electrical equipment for measurement, control, and  
laboratory use:  
EN 61010-1, IEC 61010-1  
UL 61010-1  
CAN/CSA-C22.2 No. 61010-1  
Note For UL and other safety certifications, refer to the product label, or visit  
ni.com/certification, search by model number or product line, and click the  
appropriate link in the Certification column.  
Hazardous Locations  
The USB-9201/9221 is not certified for use in hazardous locations.  
Environmental  
The USB-9201/9221 is intended for indoor use only.  
Operating temperature  
(IEC 60068-2-1, IEC 60068-2-2) ...........0 to 60 °C  
Storage temperature  
(IEC 60068-2-1, IEC 60068-2-2) ...........– 40 to 85 °C  
USB-9201/9221 User Guide and Specifications  
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Operating humidity  
(IEC 60068-2-56)................................... 10 to 90% RH, noncondensing  
Storage humidity  
(IEC 60068-2-56)................................... 5 to 95% RH, noncondensing  
Maximum altitude.................................. 2,000 m  
Pollution Degree (IEC 60664) ............... 2  
Electromagnetic Compatibility  
Emissions ............................................... EN 55011 Class A at 10 m  
FCC Part 15A above 1 GHz  
Immunity................................................ Industrial levels per  
EN 61326-1:1997 + A2:2001,  
Table A.1  
EMC/EMI............................................... CE, C-Tick, and FCC Part 15  
(Class A) Compliant  
Note For EMC compliance, operate this device with shielded cabling.  
CE Compliance  
This product meets the essential requirements of applicable European  
Directives, as amended for CE marking, as follows:  
Low-Voltage Directive (safety) ............. 73/23/EEC  
Electromagnetic Compatibility  
Directive (EMC) .................................... 89/336/EEC  
Note Refer to the Declaration of Conformity (DoC) for this product for any additional  
regulatory compliance information. To obtain the DoC for this product, visit ni.com/  
certification, search by model number or product line, and click the appropriate link  
in the Certification column.  
Calibration  
You can obtain the calibration certificate for the USB-9201/9221 at  
ni.com/calibration.  
Calibration interval ................................ 1 year  
© National Instruments Corporation  
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USB-9201/9221 User Guide and Specifications  
 
Where to Go for Support  
The National Instruments Web site is your complete resource for technical  
support. At ni.com/support you have access to everything from  
troubleshooting and application development self-help resources to email  
and phone assistance from NI Application Engineers.  
National Instruments corporate headquarters is located at  
11500 North Mopac Expressway, Austin, Texas, 78759-3504.  
National 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 calling  
instructions or dial 512 795 8248. For telephone support outside the United  
States, contact your local branch office:  
Australia 1800 300 800, Austria 43 0 662 45 79 90 0,  
Belgium 32 0 2 757 00 20, Brazil 55 11 3262 3599,  
Canada 800 433 3488, China 86 21 6555 7838,  
Czech Republic 420 224 235 774, Denmark 45 45 76 26 00,  
Finland 385 0 9 725 725 11, France 33 0 1 48 14 24 24,  
Germany 49 0 89 741 31 30, India 91 80 41190000,  
Israel 972 0 3 6393737, Italy 39 02 413091, Japan 81 3 5472 2970,  
Korea 82 02 3451 3400, Lebanon 961 0 1 33 28 28,  
Malaysia 1800 887710, Mexico 01 800 010 0793,  
Netherlands 31 0 348 433 466, New Zealand 0800 553 322,  
Norway 47 0 66 90 76 60, Poland 48 22 3390150,  
Portugal 351 210 311 210, Russia 7 495 783 68 51,  
Singapore 1800 226 5886, Slovenia 386 3 425 42 00,  
South Africa 27 0 11 805 8197, Spain 34 91 640 0085,  
Sweden 46 0 8 587 895 00, Switzerland 41 56 200 51 51,  
Taiwan 886 02 2377 2222, Thailand 662 278 6777,  
United Kingdom 44 0 1635 523545  
National Instruments, NI, ni.com, and LabVIEW are trademarks of National Instruments Corporation.  
Refer to the Terms of Use section on ni.com/legal for more information about National  
Instruments trademarks. Other product and company names mentioned herein are trademarks or trade  
names of their respective companies. For patents covering National Instruments products, refer to the  
appropriate location: Help»Patents in your software, the patents.txt file on your CD, or  
ni.com/patents.  
© 2005–2006 National Instruments Corporation. All rights reserved.  
371567C-01  
Nov06  
 

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