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National Instruments NI 9234 manuel d'utilisation

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Le mot vient du latin "Instructio", à savoir organiser. Ainsi, le manuel d’utilisation National Instruments NI 9234 décrit les étapes de la procédure. Le but du manuel d’utilisation est d’instruire, de faciliter le démarrage, l'utilisation de l'équipement ou l'exécution des actions spécifiques. Le manuel d’utilisation est une collection d'informations sur l'objet/service, une indice.

Malheureusement, peu d'utilisateurs prennent le temps de lire le manuel d’utilisation, et un bon manuel permet non seulement d’apprendre à connaître un certain nombre de fonctionnalités supplémentaires du dispositif acheté, mais aussi éviter la majorité des défaillances.

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Tout d'abord, le manuel d’utilisation National Instruments NI 9234 devrait contenir:
- informations sur les caractéristiques techniques du dispositif National Instruments NI 9234
- nom du fabricant et année de fabrication National Instruments NI 9234
- instructions d'utilisation, de réglage et d’entretien de l'équipement National Instruments NI 9234
- signes de sécurité et attestations confirmant la conformité avec les normes pertinentes

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Habituellement, cela est dû au manque de temps et de certitude quant à la fonctionnalité spécifique de l'équipement acheté. Malheureusement, la connexion et le démarrage National Instruments NI 9234 ne suffisent pas. Le manuel d’utilisation contient un certain nombre de lignes directrices concernant les fonctionnalités spécifiques, la sécurité, les méthodes d'entretien (même les moyens qui doivent être utilisés), les défauts possibles National Instruments NI 9234 et les moyens de résoudre des problèmes communs lors de l'utilisation. Enfin, le manuel contient les coordonnées du service National Instruments en l'absence de l'efficacité des solutions proposées. Actuellement, les manuels d’utilisation sous la forme d'animations intéressantes et de vidéos pédagogiques qui sont meilleurs que la brochure, sont très populaires. Ce type de manuel permet à l'utilisateur de voir toute la vidéo d'instruction sans sauter les spécifications et les descriptions techniques compliquées National Instruments NI 9234, comme c’est le cas pour la version papier.

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Tout d'abord, il contient la réponse sur la structure, les possibilités du dispositif National Instruments NI 9234, l'utilisation de divers accessoires et une gamme d'informations pour profiter pleinement de toutes les fonctionnalités et commodités.

Après un achat réussi de l’équipement/dispositif, prenez un moment pour vous familiariser avec toutes les parties du manuel d'utilisation National Instruments NI 9234. À l'heure actuelle, ils sont soigneusement préparés et traduits pour qu'ils soient non seulement compréhensibles pour les utilisateurs, mais pour qu’ils remplissent leur fonction de base de l'information et d’aide.

Table des matières du manuel d’utilisation

  • Page 1

    OPERATING INSTRUCTIONS AND S PECIFICATIONS NI 9234 4-Channel, ± 5 V, 24-Bit Software-Selectable IEPE and AC/DC Analog Input Module ni.com/manuals Deutsch Français[...]

  • Page 2

    NI 9234 Operating I nstruction s and Specificati ons 2n i . c o m This doc u ment describes ho w to u se the National Instr u ments 9 234 and incl u des specif ications and con nector assignments for the NI 9234. V isit ni.com/info and enter rd s oftwarever s ion to determine which software yo u need for the mod u les yo u are u sing. For informa t[...]

  • Page 3

    © National Instruments Corp. 3 NI 9234 Operating Instructi ons and Specific ations Safety Guidelines Operate the NI 9234 only as described in these operating instr u ctions. Hot Surface This icon denotes that the component may be hot. T o u ching this component may res u lt in bodily inj u ry . Safety Guidelines fo r Hazardous Loca tions The NI 92[...]

  • Page 4

    NI 9234 Operating I nstruction s and Specificati ons 4n i . c o m Caution S u bstit u tion of components may impair s u itability for Class I, Division 2. Caution For Zone 2 applications, install the system in an enclos u re rated to at least IP 54 as defined b y IEC 60529 an d EN 60529 . Caution For Zone 2 applications, connected signals m u st be[...]

  • Page 5

    © National Instruments Corp. 5 NI 9234 Operating Instructi ons and Specific ations Special Conditions fo r Marine Ap plications Some mod u les are Lloyd’ s Register (LR) T ype Approv ed for marine applications. T o verify Llo yd’ s Register cert if ication, visit ni.com/certification and search for the LR certificate, or look for the Lloyd’ [...]

  • Page 6

    NI 9234 Operating I nstruction s and Specificati ons 6n i . c o m Connecting the NI 9234 The NI 9234 has fo u r BNC connectors that pr ovide connections to fo u r sim u ltaneo u sly sampled analog inp u t channels. Figure 1. NI 9234 Connector Assignments AI3+ AI3– AI2+ AI2– AI0+ AI0– AI1+ AI1–[...]

  • Page 7

    © National Instruments Corp. 7 NI 9234 Operating Instructi ons and Specific ations Each channel has a BNC connector to which yo u can connect a signal so u rce. Y o u can also enable excita tion c u rrent on a per-channel basis to connect Integr at ed Electronics Pi ezoelectric (IEPE) sensors. Refer to the NI 9234 Circuitry section for more inform[...]

  • Page 8

    NI 9234 Operating I nstruction s and Specificati ons 8n i . c o m Refer to Fig u res 2 and 3 for ill u strations of connecting gro u nded and floating signal so u rces to the NI 9234. Figure 2. Connecting a G rounded Signal Source to the NI 92 34 NI 9234 AI+ AI– + – Signal Source Common Mode V oltage[...]

  • Page 9

    © National Instruments Corp. 9 NI 9234 Operating Instructi ons and Specific ations Figure 3. Connecting a Floating Signal Source to the NI 9234 The NI 9234 can also provide an IEPE excitation c u rr ent for ea ch channel to meas u re gr o u nd-referenced or floati ng IEPE sensors. T ypical IEPE sensors hav e a case th at is electrically isolated f[...]

  • Page 10

    NI 9234 Operating I nstruction s and Specificati ons 10 ni.com NI 9234 Circuitr y The NI 9234 analog inp u t channels are referenced to chass is gro u nd thro u gh a 50 Ω resistor . T o minimize gro u nd noise, make s u re the chassis gro u nd is connected to earth gro u nd. Each channel is protected from o v erv oltages. The inp u t signal on eac[...]

  • Page 11

    © National Instruments Corp. 11 NI 9234 O perating In structions and Specificat ions Figure 4. NI 9234 Input Cir cuitr y for One Channel The NI 9234 u ses common-mode bias c u rrent to bias the c u rrent-limiting diodes when IEPE c u rrent is t u rned off. When the NI 9234 is u sing gro u nded signal so u rce s, this c u rrent ca u ses an error th[...]

  • Page 12

    NI 9234 Operating I nstruction s and Specificati ons 12 ni.com Figure 5. Measurement Error Introduced by Common-Mode Bias Current The NI 9234 also has TEDS circ u itry . For more information abo u t TEDS, go to ni.com/info and enter rdted s . NI 9234 AI+ AI– + – Signal Source AI– Lead Impedance Common Mode Bias Current[...]

  • Page 13

    © National Instruments Corp. 13 NI 9234 O perating In structions and Specificat ions Understanding NI 9234 Filtering The NI 9234 u ses a combination of anal og and digita l f iltering to provide an acc u rate representation of in-band signals whi le rejecting o u t-of-band signals. The f ilt ers discrimina te between signals based on the freq u en[...]

  • Page 14

    NI 9234 Operating I nstruction s and Specificati ons 14 ni.com Figure 6. NI 9234 T ypical Passband Flatness F requency/Data Rate 0.5 0.4 0.025 0.000 –0.025 –0.050 0.3 0.2 0. 1 0 Gain (dB)[...]

  • Page 15

    © National Instruments Corp. 15 NI 9234 O perating In structions and Specificat ions Stopband The filter signif icantly atten u ates all signals abo ve the stop band freq u ency . The primary goal of the fi lter is to pre vent aliasing. Therefore, the stopband freq u ency scales precisel y with the data rate. The stopband rejection is the minim u [...]

  • Page 16

    NI 9234 Operating I nstruction s and Specificati ons 16 ni.com Understanding NI 9234 Data Rates The freq u ency of a ma ster timebase ( f M ) controls the data rate ( f s ) of the NI 9234. The NI 9234 incl u des an int ernal master timebase with a freq u ency of 13.1072 MHz, b u t the mod u le also can accept an external master timebase or e xport [...]

  • Page 17

    © National Instruments Corp. 17 NI 9234 O perating In structions and Specificat ions of 13.1072 MHz, the res u lt is da ta rates of 51.2 kS/s, 25.6 kS/s, 17.067 kS/s, and so on do wn to 1. 652 kS/s, depending on the v al u e of n . When u sing an external timebase with a fre q u ency other than 13.1072 MHz, the NI 9234 has a di f ferent set of dat[...]

  • Page 18

    NI 9234 Operating I nstruction s and Specificati ons 18 ni.com Specifications The follo wing specif ications are typical for the rang e – 40 to 70 °C u nless otherwise noted. Input Characteristics N u mber of channels .................. ........ 4 a nalog inp u t channels ADC resol u tion .......... ........... ........... . 24 bi ts T ype of AD[...]

  • Page 19

    © National Instruments Corp. 19 NI 9234 O perating In structions and Specificat ions Data rate range ( f s ) u sing external master timebase Minim u m ...................... ......... ..... 0.391 kS/s Maxim u m ....................... ............ 52.734 kS/s Data rates 1 ( f s ) ... ......... ......... ........... ... , n = 1, 2, …, 31 Inp u t [...]

  • Page 20

    NI 9234 Operating I nstruction s and Specificati ons 20 ni.com AC c u tof f freq u ency response F requency (Hz) 10 4 0.5 0.0 –0.5 –1.0 3 2 1 09 8 7 6 5 Gain (dB)[...]

  • Page 21

    © National Instruments Corp. 21 NI 9234 O perating In structions and Specificat ions Inp u t range ...... ........ ............ ........... ... ±5 V AC v o l t a g e f u ll-scale range Minim u m .. ........ ............ ......... ..... ±5 V pk T ypi cal . ........... ......... ........... ........ ±5.1 V pk Maxim u m ......... ............ ....[...]

  • Page 22

    NI 9234 Operating I nstruction s and Specificati ons 22 ni.com IEPE compliance voltage .......... ........ 19 V ma x If yo u are u sing an IEPE sensor , u se the following eq u ation to make s u re yo u r config u ration meets the IEPE compliance v oltage range. ( V common-mo de + V bias ± V full-scale ) m u st be 0 to 19 Overv oltage protection ([...]

  • Page 23

    © National Instruments Corp. 23 NI 9234 O perating In structions and Specificat ions Acc u racy 1 1 Refer to the NI 9234 Circuitry section for informat ion regarding gro u nded signal so u rces and meas u rement acc u racy . Measurement Conditions Percent of Reading (Gain Error) Perc e n t of Range * (Offset Err or) Calibrated max (–40 to 70 °C[...]

  • Page 24

    NI 9234 Operating I nstruction s and Specificati ons 24 ni.com Gain drift T ypi cal . ........... ......... ........... ........ 0.14 mdB/°C (16 ppm/° C) Maxim u m ......... ............ ........... ... 0.45 mdB/°C (52 ppm/°C) Offset drift T ypi cal . ........... ......... ........... ........ 19.2 μ V/°C Maxim u m ............ ..............[...]

  • Page 25

    © National Instruments Corp. 25 NI 9234 O perating In structions and Specificat ions Alias-free bandwidth ..... ......... .......... 0.45 · f s Oversample rate ......... ........... ......... ... 64 · f s Crosstalk (1 kHz) ........... ......... .......... –110 dB CMRR ( f in ≤ 1 kHz) Minim u m .. ........... ........... ......... ... 40 dB T[...]

  • Page 26

    NI 9234 Operating I nstruction s and Specificati ons 26 ni.com T otal harmonic distortion (THD) Intermod u lation distortion (–1 dBFS) DIN 250 Hz/8 kHz 4:1 amplit u de ratio ......... ............ –80 dB CCIF 11 kHz/12 kHz 1:1 amplit u de ratio ......... ............ –93 dB MTBF .......... ........... ............ ........... ... 390,362 ho u[...]

  • Page 27

    © National Instruments Corp. 27 NI 9234 O perating In structions and Specificat ions Power Requirements Power cons u mption fr om chassis Activ e mode .............. ............ ..... 900 mW max Sleep mode .......... ......... ........... ... 25 μ W max Thermal dissipation (at 70 °C) Active mode .............. ......... ........ 930 mW max Slee[...]

  • Page 28

    NI 9234 Operating I nstruction s and Specificati ons 28 ni.com Safety Safety Voltages Connect only v oltages that are within the follo wing limits. Channel-to-earth gro u nd .............. ..... ±30 V max, Meas u rement Category I Isolation Channel-to-channel .................... None Channel-to-earth gro u nd ........... . None Meas u rement Cate[...]

  • Page 29

    © National Instruments Corp. 29 NI 9234 O perating In structions and Specificat ions Hazardous Locations U.S. (UL) .......... ......... ........... ......... ... Class I, Division 2, Gro u ps A, B, C, D, T4; Class I, Zone 2, AEx nA IIC T4 Canada (C-UL) .......... ........... ........... . Cla ss I, Division 2, Gro u ps A, B, C, D, T4; Class I, Zon[...]

  • Page 30

    NI 9234 Operating I nstruction s and Specificati ons 30 ni.com Electromagnetic Compatibility This prod u ct meets the req u irements of the follo wing EMC standards for electrical eq u ipment for meas u rement, control, and laboratory u se: • EN 61326 (IEC 61326): Class A emissions; Basic imm u nity • EN 55011 (CISPR 11): Gro u p 1, Class A emi[...]

  • Page 31

    © National Instruments Corp. 31 NI 9234 O perating In structions and Specificat ions CE Compliance This prod u ct meets the essent ial req u irem ents of app licable E u ropean Directi ves as follows: • 2006/95/EC; Low-V oltage Directiv e (safety) • 2004/108/EC; Electromagneti c Compatibility Directive (EMC) Online Product Certification Refer [...]

  • Page 32

    NI 9234 Operating I nstruction s and Specificati ons 32 ni.com Shock and Vibration T o meet these specifications, yo u m u st panel mo u nt the system. Operating vibration Random (IEC 60068-2-64)......... 5 g rms , 10 to 500 Hz Sin u soidal (IEC 60068-2-6) ....... 5 g, 10 to 500 Hz Operating shock (IEC 60068-2-27)........... ........... ........ 30[...]

  • Page 33

    © National Instruments Corp. 33 NI 9234 O perating In structions and Specificat ions Operating h u midity (IEC 60068-2-56)....... ........... ............ 10 to 90% RH, noncondensing Storage h u midity (IEC 60068-2-56)....... ........... ............ 5 to 95% RH, noncondensing Maxim u m altit u de.......... ......... .......... 2,000 m Poll u tion[...]

  • Page 34

    NI 9234 Operating I nstruction s and Specificati ons 34 ni.com Waste Electrical and Electronic Equipment (WEEE) EU Customers At t he end of their lif e cycl e, all prod u cts must be sent to a WEEE re c ycling center . For more information abo u t WEEE recycling ce nters and National Instr u ments WEEE initiati ves, visit ni.com/ environment/weee.h[...]

  • Page 35

    © National Instruments Corp. 35 NI 9234 O perating In structions and Specificat ions Where to Go for Support The National Instr u ments W eb site is yo u r complete reso u rce for technical s u pport. At ni.com/ s upport yo u have access to ev erything from tro u bleshooting and applic ation dev elopment self-help reso u rces to email and phone as[...]

  • Page 36

    National Instruments, NI, n i.com, and LabVIEW are trademarks of National Instrument s Corporation. Refer to the Terms of Use section on ni.com/legal for more information about National Instruments t rademarks. Other product and company names ment ioned herein are tradema rks or trade names of their respec tive companies. For patents covering Na ti[...]