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USER GUIDE AND SPECIFICATIONS
NI USB-9201/9221
8-Channel, 12-Bit Analog Input Devices
Introduction
This user guide describes how to use the National Instruments
NI USB-9201/9221 devices and lists the specifications. In this user guide,
the NI USB-9201/9221 with screw terminal and NI USB-9201/9221 with
D-SUB are referred to inclusively as the NI USB-9201/9221.
The NI USB-9210/9221 data acquisition device provides a USB interface
for eight channels of 12-bit analog inputs with integrated signal
conditioning. The NI USB-9201/9211 consists of two components: an
NI 9201/9221 module and an NI USB-9162 carrier, as shown in Figure 1.
NI 9201/9221
NI USB-9162
Figure 1. NI USB-9201/9221 Components
NI USB-9201/9221
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Table of Contents
Related Manuals for National Instruments NI USB-9201
Summary of Contents for National Instruments NI USB-9201
- Page 1 8-Channel, 12-Bit Analog Input Devices This user guide describes how to use the National Instruments NI USB-9201/9221 devices and lists the specifications. In this user guide, the NI USB-9201/9221 with screw terminal and NI USB-9201/9221 with D-SUB are referred to inclusively as the NI USB-9201/9221.
- Page 2 Dimensions Figures 2 and 3 show the NI USB-9201/9221 device dimensions. Hi-Speed USB Carrier NI USB-9162 140.23 mm 120.68 mm (5.521 in.) (4.751 in.) 137.82 mm 118.26 mm (5.426 in.) (4.656 in.) 88.12 mm 25.34 mm (3.469 in.) (0.998 in.) Figure 2.
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Page 3: Safety Guidelines For Hazardous Voltages
Operate the NI USB-9201/9221 only as described in these operating instructions. Although the NI 9201/9221 might have more stringent certification standards Caution than the NI USB-9201/9221, when used with the NI USB-9162 carrier, the combined system might be limited. Refer to the Specifications section for more information. -
Page 4: Related Documentation
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. NI USB-9201/9221 User Guide and Specifications ni.com... -
Page 5: Measurement Studio
Project dialog box. Find the Measurement Studio folder for the language you want to create a program in. Choose a project type. You add DAQ tasks as a part of this step. © National Instruments Corporation NI USB-9201/9221 User Guide and Specifications... -
Page 6: Ansi C Without Ni Application Software
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. -
Page 7: Installing The 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-DAQmx for USB Devices Getting Started Guide that shipped with your device, and is also accessible from Start»All Programs»National Instruments»... - Page 8 NI USB-9162 carrier. 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 NI USB-9201/9221 User Guide and Specifications ni.com...
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Page 9: Led Indicator
Figure 6. Module Dimensions in Millimeters (Inches) Connecting the NI USB-9201/9221 to a Computer Plug one end of the USB cable into the NI 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»... - Page 10 Quadruple-blink Device error. Refer to ni.com/support Wiring the NI USB-9201/9221 Device The NI USB-9201/9221 provides connections for eight analog input channels. Caution A high voltage screw terminal backshell must be installed when using hazardous voltages (>42.4 V , 60 VDC).
- Page 11 Each channel has a terminal or pin, AI, to which you can connect a voltage signal. The NI 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 3 for the terminal assignments of the NI USB-9201/9221 with screw terminal.
- Page 12 Voltage USB-9201/9221 Source – 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-DAQ, for information about different methods of reading NI USB-9201/9221 data. NI USB-9201/9221 User Guide and Specifications...
- Page 13 Connect the leads to the screw terminal and secure with the strain relief. Finish by snapping the backshell around the connector. 1 Strain Relief Figure 9. High Voltage Screw Terminal Backshell Figure 10. Assembled High Voltage Screw Terminal Backshell © National Instruments Corporation NI USB-9201/9221 User Guide and Specifications...
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Page 14: Specifications
NI USB-9201/9221 Circuitry The NI 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. - Page 15 ±0.26% ±0.43% Uncalibrated max (0 to 60 °C) ±0.67% ±1.06% * Range equals 10.53 V for the NI USB-9201, 62.50 V for the NI USB-9221. Refer to the Safety section for details about safe operating voltages. Excludes noise. © National Instruments Corporation...
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Page 16: Power Requirements
Crosstalk ..........–75 dB, 10 kHz Settling time (to 1 LSB) NI USB-9201........2 μs NI 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 Hi-Speed NI USB-9201/9221 User Guide and Specifications ni.com... -
Page 17: Physical Characteristics
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-9201/9221 with Screw Terminal Channel-to-channel isolation ....None Channel-to-earth ground isolation Continuous ........250 V , Measurement Category II Withstand ........ -
Page 18: Safety Standards
, search by model number or product line, and click the ni.com/certification appropriate link in the Certification column. Hazardous Locations The NI USB-9201/9221 is not certified for use in hazardous locations. Environmental The NI USB-9201/9221 is intended for indoor use only. Operating temperature (IEC 60068-2-1, IEC 60068-2-2) ...0 to 60 °C... -
Page 19: Electromagnetic Compatibility
Certification column. Environmental Management National Instruments is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial not only to the environment but also to NI customers. -
Page 20: Waste Electrical And Electronic Equipment (Weee)
National Instruments (RoHS) National Instruments RoHS ni.com/environment/rohs_china (For information about China RoHS compliance, go to ni.com/environment/rohs_china Calibration You can obtain the calibration certificate for the NI USB-9201/9221 at ni.com/calibration Calibration interval ........1 year NI USB-9201/9221 User Guide and Specifications ni.com... -
Page 21: Where To Go For Support
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.