National Instruments NI USB-9229 manual

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Table of contents for the manual

  • Page 1

    USER GUIDE AND SPECIFICATIONS NI USB-9229/9239 4-Channel, 24-Bit Analog Vo ltage Input Module This user guide describes how to use the National Instruments USB-9229/9239 and lists the device specifications. In this document, the NI USB-9229 and NI USB-9239 ar e referred to inclusiv ely as the NI USB-9229/9239. Introduction The NI USB-9229/9239 pr o[...]

  • Page 2

    NI USB-9229/9 239 User Guid e and Specifications 2 ni.com Dimensions Figure 2 shows the NI USB-9229/9239 device dimensions. Figure 2. NI USB-9229/9239 Device in Millimeters (Inches) Safety Guidelines Ope ra te t he NI USB -9229/ 9239 only as described in these operating instructions. Hot Surface This icon denotes that the componen t may be hot. T o[...]

  • Page 3

    © National Instruments Corporation 3 NI US B-9229/9239 User G u ide and Specifications Caution Make sure that de vices and circuits connected to the module are properly insulated from human contact. Caution When module term in als are hazardous voltage LIVE (>42.4V pk /60 VDC), you must ensure that device s and circuits connect ed to the module[...]

  • Page 4

    NI USB-9229/9 239 User Guid e and Specifications 4 ni.com The NI-DAQmx Help contains general inform ation about measurement concepts, key NI-D A Qmx concepts, and common applications that are applicable to all programming environments. Select Start»All Programs»National Instruments»NI-D A Q»NI-DA Qmx Hel p . LabVIEW If you are a new user, use t[...]

  • Page 5

    © National Instruments Corporation 5 NI US B-9229/9239 User G u ide and Specifications Measurement Studio If you program your NI-D A Qm x-su pported device in Measurement Studio using V isual C++, V isual C#, or V isu al Basic .NET , you can interactiv ely create channels and tasks by launching the D A Q Assistant from MAX or from within V isual S[...]

  • Page 6

    NI USB-9229/9 239 User Guid e and Specifications 6 ni.com The installed documentation co ntains the NI-D A Qmx API overvie w , measurement tasks and concepts, and func tion reference. This help is fully integrated into the V isual St udio .NET documentation. T o view the NI-D A Qmx .N ET documentation, go to Start» Programs»National Instruments»[...]

  • Page 7

    © National Instruments Corporation 7 NI US B-9229/9239 User G u ide and Specifications Installing Other Software If you are using other softw are, refer to the installation inst ructions 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-9229/9 239. R[...]

  • Page 8

    NI USB-9229/9 239 User Guid e and Specifications 8 ni.com 5. Press firmly on the connector side of t he NI 9229/9239 m odule until the latches lock the module into place, as sho wn in Figure 5. Figure 5. Locking Module into Place Mounting the NI USB-9 229/9239 to a Panel Threaded inserts are located in the NI USB-9229/9239 for mounting it to a pane[...]

  • Page 9

    © National Instruments Corporation 9 NI US B-9229/9239 User G u ide and Specifications LED Indicator The NI USB-9229/9239 device has a green LED next to the USB connector. The LED in dicator indicates device stat us, as listed in T able 1. When the device is connected to a US B port, the LED blinks steadily to indicate that the device is initializ[...]

  • Page 10

    NI USB-9229/9 239 User Guid e and Specifications 10 ni.com source to the AI– terminal. Refer to Table 3 for the terminal assignments for each channel. Wiring for High-Vibration Applications If an application is subject to high vibrati on, National Instrument s recommends that you e ither use ferrules to terminate wires to the detachable screw-ter[...]

  • Page 11

    © National Instruments Corporation 11 NI US B-9229/923 9 User Gu ide and Specifications Connecting Signal Sources to the NI USB-9229/9239 You can connect ground-referenced or floating signal sources to the NI USB-9229/9239. If you make a gr oun d-referenced connection between the signal source and the NI USB-9229 /9239, make sure the voltage on th[...]

  • Page 12

    NI USB-9229/9 239 User Guid e and Specifications 12 ni.com Each channel provides an independent signal path and ADC, enablin g you to sample all four channels simu ltaneously . Refer to Figur e 10 for an illustration of the circuitry for one channel. Figure 10. Input Cir cuitry for One Channel Understanding NI USB-9229/9239 Filtering The NI USB-922[...]

  • Page 13

    © National Instruments Corporation 13 NI US B-9229/923 9 User Gu ide and Specifications Passband The signals within the passband have frequ ency-dependent gain or attenuation. The small amount of vari ation in gain with respect to frequency is called the passband flatness. The digital fil ters of the NI USB-9229/9239 adjust the frequency range of [...]

  • Page 14

    NI USB-9229/9 239 User Guid e and Specifications 14 ni.com Specifications The following specifications are typical for the range 0 to 60 °C unless otherwise noted. All voltages ar e relative to the AI– signal on each channel unless otherwise noted. Input Characteristics Number of channels .............. ...... ........ .... 4 analog input channe[...]

  • Page 15

    © National Instruments Corporation 15 NI US B-9229/923 9 User Gu ide and Specifications Accuracy, NI USB-9229 Accuracy, NI USB-9239 Input noise NI USB-9229 ................... .............. . 320 μ V rms NI USB-9239 ................... ........... .... 70 μ V rms Stability Gain drift .................... ..................... ±5 ppm/°C Offset[...]

  • Page 16

    NI USB-9229/9 239 User Guid e and Specifications 16 ni.com NI USB-9229 ............... ....................0.045°/kHz + 360°· f in /M clk 1 NI USB-9239 ............... ....................0.075°/kHz + 360°· f in /M clk 1 Phase nonlinearity ( f s = 50 kS/s).............0.11° max Input delay NI USB-9229 ............... ....................38.4[...]

  • Page 17

    © National Instruments Corporation 17 NI US B-9229/923 9 User Gu ide and Specifications Physical Characteristics Screw-terminal wiring..................... ....... 16 to 28 AWG copper conductor wire with 7 mm (0.28 in .) of insulation stripped from the end Torque for screw terminals ........ ............ 0.22 to 0. 25 N · m ( 1 . 9 5t o 2 . 2 1l [...]

  • Page 18

    NI USB-9229/9 239 User Guid e and Specifications 18 ni.com Note For UL and other safety certifications, refer to the product lab el or visit ni.com/ certification , search for the module number or product line, and click the appropriate link in the Certification column. Hazardous Locations The NI USB-9229/9239 is not certifi ed for use in hazardous[...]

  • Page 19

    © National Instruments Corporation 19 NI US B-9229/923 9 User Gu ide and Specifications CE Compliance This product meets the essential re quirements of applicable European Directives, as amended fo r CE marking, as follows: • 2006/95/EC; Lo w-V oltage D irecti ve (safety) • 2004/108/EEC; Electromagnetic Com patibility Directiv e (EMC) Note Ref[...]

  • Page 20

    National Instruments, NI, ni.com, and LabVIEW are tradem arks of National Instruments Corporation. Refer to t he Terms of Use section on ni.com/legal for more information abou t National Instruments trademarks. Other product and compan y names mentioned herein are trademarks or trade names of their respective companie s . For patents covering Natio[...]