Summary of Contents for National Instruments USB-9201
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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.
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Dimensions Figures 2 and 3 show the USB-9201/9221 device dimensions. Hi-Speed USB Carrier NI USB-9162 120.68 mm 118.26 mm (4.751 in.) 140.23 mm (4.656 in.) 137.82 mm (5.521 in.) (5.426 in.) 88.12 mm 25.34 mm (3.469 in.) (0.998 in.) Figure 2. USB-9201/9221 Devices in Inches (Millimeters)
Operate the USB-9201/9221 only as described in these operating instructions. Although the NI 9201/9221 might have more stringent certification standards Caution 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.
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»...
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»...
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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.
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Terminal Signal AI 0 AI 1 AI 2 AI 3 AI 4 AI 5 AI 6 AI 7 No connection Common (COM) Figure 7. Pin Assignments USB-9201/9221 User Guide and Specifications ni.com Download from Www.Somanuals.com. All Manuals Search And Download.
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.
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Scanning ........500 kS/s USB-9221 ........800 kS/s max Operating voltage ranges 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 ........
Uncalibrated typ (25 °C, ±5 °C) ±0.26% ±0.43% ±0.67% ±1.06% Uncalibrated max (0 to 60 °C) * 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)
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.
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: •...
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.
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