National Instruments NI 9219 инструкция обслуживания

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Хорошее руководство по эксплуатации

Законодательство обязывает продавца передать покупателю, вместе с товаром, руководство по эксплуатации National Instruments NI 9219. Отсутствие инструкции либо неправильная информация, переданная потребителю, составляют основание для рекламации в связи с несоответствием устройства с договором. В законодательстве допускается предоставлении руководства в другой, чем бумажная форме, что, в последнее время, часто используется, предоставляя графическую или электронную форму инструкции National Instruments NI 9219 или обучающее видео для пользователей. Условием остается четкая и понятная форма.

Что такое руководство?

Слово происходит от латинского "instructio", тоесть привести в порядок. Следовательно в инструкции National Instruments NI 9219 можно найти описание этапов поведения. Цель инструкции заключается в облегчении запуска, использования оборудования либо выполнения определенной деятельности. Инструкция является набором информации о предмете/услуге, подсказкой.

К сожалению немного пользователей находит время для чтения инструкций National Instruments NI 9219, и хорошая инструкция позволяет не только узнать ряд дополнительных функций приобретенного устройства, но и позволяет избежать возникновения большинства поломок.

Из чего должно состоять идеальное руководство по эксплуатации?

Прежде всего в инструкции National Instruments NI 9219 должна находится:
- информация относительно технических данных устройства National Instruments NI 9219
- название производителя и год производства оборудования National Instruments NI 9219
- правила обслуживания, настройки и ухода за оборудованием National Instruments NI 9219
- знаки безопасности и сертификаты, подтверждающие соответствие стандартам

Почему мы не читаем инструкций?

Как правило из-за нехватки времени и уверенности в отдельных функциональностях приобретенных устройств. К сожалению само подсоединение и запуск National Instruments NI 9219 это слишком мало. Инструкция заключает ряд отдельных указаний, касающихся функциональности, принципов безопасности, способов ухода (даже то, какие средства стоит использовать), возможных поломок National Instruments NI 9219 и способов решения проблем, возникающих во время использования. И наконец то, в инструкции можно найти адресные данные сайта National Instruments, в случае отсутствия эффективности предлагаемых решений. Сейчас очень большой популярностью пользуются инструкции в форме интересных анимаций или видео материалов, которое лучше, чем брошюра воспринимаются пользователем. Такой вид инструкции позволяет пользователю просмотреть весь фильм, не пропуская спецификацию и сложные технические описания National Instruments NI 9219, как это часто бывает в случае бумажной версии.

Почему стоит читать инструкции?

Прежде всего здесь мы найдем ответы касательно конструкции, возможностей устройства National Instruments NI 9219, использования отдельных аксессуаров и ряд информации, позволяющей вполне использовать все функции и упрощения.

После удачной покупки оборудования/устройства стоит посвятить несколько минут для ознакомления с каждой частью инструкции National Instruments NI 9219. Сейчас их старательно готовят или переводят, чтобы они были не только понятными для пользователя, но и чтобы выполняли свою основную информационно-поддерживающую функцию.

Содержание руководства

  • Страница 1

    OPERATING INSTRUCTIONS NI 9219 4-Channel, 24-Bit, Universal Analo g Input Module[...]

  • Страница 2

    NI 9219 Operating Instructions 2 ni.com These operating instructions desc ribe ho w to use the National Instruments 9219. For information about installing, conf iguring, and programming the syst em, refer to the system documentation. Vi s i t ni.com/info and enter the info code rdsoftwareversion to determine which software you need for the modules [...]

  • Страница 3

    © National Instruments Corp. 3 NI 9219 Operating Instructions Safety Guidelines for Hazardous V oltages If hazardous voltages are connect ed to the module, take the follow ing precautions. A hazardous voltage is a voltage greater than 42.4 V pk or 60 VDC to earth ground. Caution Ensure that hazardous voltage wiring is performed only by qualified p[...]

  • Страница 4

    NI 9219 Operating Instructions 4 ni.com Figure 1 sho ws the NI 9972 connector backshell. Figure 1. NI 9972 Connector Backshell Safety Guidelines fo r Hazardous Loca tions The NI 9219 is suitable for use in Cl ass I, Division 2, Groups A, B, C, D, T4 hazardous locations; Cl ass I, Zo ne 2, AEx nC IIC T4 hazardous locations; and nonhazardous location[...]

  • Страница 5

    © National Instruments Corp. 5 NI 9219 Operating Instructions Caution Do not remove modules unle ss power has been switched off or the area is known to be nonhazardous. Caution Substitution of component s may impair suitability for Class I, Division 2. Caution For Zone 2 applications, install the system in an enclosure rated to at least IP 54 as d[...]

  • Страница 6

    NI 9219 Operating Instructions 6 ni.com Wiring the NI 9219 The NI 9219 has four 6-terminal connectors that pro vide connections for four analog input channels. Connect the positi ve signal of the signal source to the positive input signal terminal (HI) and the negati ve signal of the signa l source to the negati ve input signal terminal (LO). Use t[...]

  • Страница 7

    © National Instruments Corp. 7 NI 9219 Operating Instructions Table 1. Signal N ames Module T erminal Signal Name Signal Description 1 T+ TEDS Data 2 T– TEDS COM 3 EX+/HI * Pos itive e xcitation or input signal 4 HI Positiv e input signal 5 EX– /LO * Negati ve excitation or input signal 6 LO Negati ve input signal * Depending on the mode, term[...]

  • Страница 8

    NI 9219 Operating Instructions 8 ni.com Table 2. Terminal Assignment s Mode T erminal 123456 V oltage T+ T – — HI LO — Current T+ T – HI — LO — 4-W ire Resistance T+ T – EX+ HI EX – LO 2-W ire Resistance T+ T – HI — LO — Thermocouple T+ T – — HI LO — 4-W ire R TD T+ T – EX+ HI EX – LO 3-W ire R TD T+ T – EX+ — EX[...]

  • Страница 9

    © National Instruments Corp. 9 NI 9219 Operating Instructions Connecting Wires to the NI 9219 Connectors Use a flathead scre wdriv er with a blade smaller than 2.3 × 1.0 mm (0.09 × 0.04 in.) to connect wires to the detachable spring-terminal connectors. Insert the scre wdriv e r into a spring clamp acti vation slot and press a wire into the corr[...]

  • Страница 10

    NI 9219 Operating Instructions 10 ni.com Wiring TEDS Cha nnels The NI 9219 supports only Class II TEDS sensors. Connect th e two TEDS lin es to TEDS Data (T+) and TEDS COM (T–) and ensure that neither T+ nor T– is tied in common to an y of the signal inputs (terminals 3 through 6) on the NI 9219. V isit ni.com/info and enter the info code rdted[...]

  • Страница 11

    © National Instruments Corp. 11 NI 9219 Operating Instructions Figure 3. Connecting a G rounded Signal Sour ce to the NI 9219 Figure 4. Connecting a Floating Signal Source to the NI 9219 + – T wisted-P air Wiring V SIG V SIG Ground Reference Signal Source Shielding HI LO NI 9219 + – T wisted-P air Wiring V SIG Signal Source Shielding HI LO NI [...]

  • Страница 12

    NI 9219 Operating Instructions 12 ni.com NI 9219 Timing Options The NI 9219 supports four dif f erent timing options that are optimized for dif ferent types of applications by using dif ferent ADC con version times. High Speed is optimized for high speed at the expense of noise re jection, Best 60 Hz Rejection is optimized for rejection of 60 Hz no[...]

  • Страница 13

    © National Instruments Corp. 13 NI 9219 Operating Instructions Figure 5. Input Circuitry for One Channel Volta ge and Current Modes In V oltage and Current modes, c onnect t he signal source to the NI 9219 across the HI and LO terminals. The current is computed from the v oltage that the ADC measures across an interna l shunt resistor . Refer to F[...]

  • Страница 14

    NI 9219 Operating Instructions 14 ni.com 4-Wire Resistance and 4-Wire RTD Modes 4-W ire Resistance and 4-W ire R T D modes source a current, which va ries based on the resistance of the load, between the EX+ and EX– terminals. The me asured resistance is computed from the resulting v oltage readi ng. These mode s are not affected b y lead wire re[...]

  • Страница 15

    © National Instruments Corp. 15 NI 9219 Operating Instructions lead wires have the same resistance . A gain of 2x is applied to the volta ge across the neg ativ e lead wire and the ADC uses this v oltage as the negati ve reference to canc el the r esistance error across the positiv e lead wire. Refer to Figur e 8 for an illustration of the connect[...]

  • Страница 16

    NI 9219 Operating Instructions 16 ni.com for lead wire resistance. Refer to Figure 9 for an illustration of the connections. Figure 9. Connections in 2-Wire Resistan ce and Quarter-Bridge Modes Half-Bridge and Full-Bridge Modes Half-Bridge and Full-Bridge m odes use the internal v oltage excita tion to set the inpu t range of the ADC and return vol[...]

  • Страница 17

    © National Instruments Corp. 17 NI 9219 Operating Instructions Figure 10. Connections in Half-Br idg e and Full-Bridge Modes Thermocouple Mode In Thermocouple mode, connect the positi ve end of the thermocouple to HI and the ne gati ve end of the thermocouple to LO. This mode uses the ±125 mV range of the ADC to return a vol tage reading. Use shi[...]

  • Страница 18

    NI 9219 Operating Instructions 18 ni.com en vironment and av oid placing heat sources near the module or its connectors. Refer to the Specifications section for more information about accuracy . Th e NI 9219 does not support open thermocouple detection. Refer to Figure 11 for an illustration of the connections. Figure 11. Conn ections in Thermocoup[...]

  • Страница 19

    © National Instruments Corp. 19 NI 9219 Operating Instructions circuit is open, make sure no more than ±60 V is sourced across the switch. Open Contact mode is supported only in CompactRIO systems. Refer to Figure 12 for an illustration of the connections. Figure 12. Conn ections in Open Contact Mo de Sleep Mode This module supports a lo w-powe r[...]

  • Страница 20

    NI 9219 Operating Instructions 20 ni.com Binary Data NI 9219 modules in the system retu rn calibrated binary data when used in a CompactRIO chassis. For these modules, you can con vert the data to engineering units in software. Refer to the software documentation for inform ation about con verti ng data. When used in a CompactD A Q chassis, NI 921 [...]

  • Страница 21

    © National Instruments Corp. 21 NI 9219 Operating Instructions Input Characteristics Number of channels ............ ............. . 4 analog i nput channels ADC resolution .............. .............. ..... 24 bits T ype of ADC ........... ............ ........... ... Delta-sig ma (with anal og prefiltering) Sampling mode ............ ..........[...]

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    NI 9219 Operating Instructions 22 ni.com Con version time, no ch annels in TC mode High speed .. ............. ........... ........ 10 m s for all channe ls Best 60 Hz rejection ......... .......... 110 ms for all channels Best 50 Hz rejection ......... .......... 130 ms for all channels High resolution ...... ........... .......... 500 ms for all [...]

  • Страница 23

    © National Instruments Corp. 23 NI 9219 Operating Instructions Input impedance V oltage and Digital In modes ( ±60 V , ±15 V , ±4 V ) ........... .......... 1 M Ω Current mode .... .............. ........... . < 40 Ω All other modes ..... ........... .......... >1 G Ω Accuracy Mode, Range Gain Err or (% of Reading) Offset E rror (ppm o[...]

  • Страница 24

    NI 9219 Operating Instructions 24 ni.com Cold-junction compensa tion sensor accuracy ....... .............. ........... . ±1°C typ 4-W ire and 3-W ire R TD, Pt 1000 ±0.1, ±0.5 ±240, ±640 4-W ire and 3-W ire R TD, Pt 100 ±0.1, ±0.5 ±2400, ±6400 Quarter-Bridge, 350 Ω ±0.1, ±0.5 ±2400, ±6400 Quarter-Bridge, 120 Ω ±0.1, ±0.5 ±2400, ?[...]

  • Страница 25

    © National Instruments Corp. 25 NI 9219 Operating Instructions Stability Mode, Range Gain Drift (ppm of Reading/°C) Offset Drift (ppm of Range/°C) V oltage, ± 60 V ±20 ±0.2 V oltage, ± 15 V ±20 ±0.8 V oltage, ± 4 V ±20 ±3.2 V oltage, ± 1 V ±10 ±0.2 V oltage/Thermocouple, ± 125 mV ±10 ±1.6 Current, ± 25 mA ±15 ±0.4 4-W ire and 2[...]

  • Страница 26

    NI 9219 Operating Instructions 26 ni.com Input noise in ppm of Range rms Full-Bridge, ± 62.5 mV/V ±3 ±20 Full-Bridge, ± 7.8 mV/V ±3 ±20 Mode, Range Con version Time High speed Best 60 Hz rejection Best 50 Hz rejection High res o - lution V oltage, ±60 V 7.6 1.3 1.3 0.5 V oltage, ±15 V 10.8 1.9 1.9 0.7 V oltage, ±4 V 10.8 2.7 2.7 1.3 V olta[...]

  • Страница 27

    © National Instruments Corp. 27 NI 9219 Operating Instructions 4-W ire and 2-W ire Resistance, 10 k Ω 4.1 1.3 0.8 0.3 4-W ire and 2-W ire Resistance, 1 k Ω 7.1 1.8 1.2 0.7 4-W ire and 3-W ire R TD, Pt 1000 7.6 1.7 1.1 0.4 4-W ire and 3-W ire R TD, Pt 100 10.8 1.9 1.9 0.9 Quarter-Bridge, 350 Ω 5.4 1.0 1.0 0.7 Quarter-Bridge, 120 Ω 5.4 1.0 1.0 0[...]

  • Страница 28

    NI 9219 Operating Instructions 28 ni.com Input bias curre nt ................ ........... ... <1 nA INL ........... ........... ........... .............. ..... ±15 ppm CMRR ( f in = 60 Hz) ............ ........... ... >100 dB NMRR Best 60 Hz rej ection ......... .......... 90 dB at 60 Hz Best 50 Hz rej ection ......... .......... 80 dB at 5[...]

  • Страница 29

    © National Instruments Corp. 29 NI 9219 Operating Instructions Excitation le vel for Resistance , R TD, and Quarter-Bridge modes MTBF .......... ........... ..................... ..... 384,716 hours at 25 °C; Bellcore Issue 6, Method 1, Case 3, Limited P art Stress Method Note Contact NI for Bellcore MTBF specifications at other temperatures or f[...]

  • Страница 30

    NI 9219 Operating Instructions 30 ni.com Thermal dissipation (at 70 °C) Activ e mode .............. ............ ..... 625 mW max Sleep mode . ........... ........... .......... 25 μ W max Physical Characteristics If you need to clean the module, wipe it with a dry towel. Spring-terminal wiring..... .............. ... 18 to 28 A WG copper conduct[...]

  • Страница 31

    © National Instruments Corp. 31 NI 9219 Operating Instructions Channel-to-earth ground Continuous .... ........... ............ 250 V AC, Measurement Category II W ithstand .......... ........... ........ 2300 V A C, verif ied by a 5 s dielectric withstand test Measurement Cate gory II is fo r measurements performed on circuits directly conn ected[...]

  • Страница 32

    NI 9219 Operating Instructions 32 ni.com by module number or product line, and clic k the appropriate link in the Certification column. Hazardous Locations U.S. (UL) ............ ........... ........... ........ C lass I, Division 2, Groups A, B, C, D, T4; Class I, Zone 2, AEx nC IIC T4 Environmental National Instruments C Series modules are in ten[...]

  • Страница 33

    © National Instruments Corp. 33 NI 9219 Operating Instructions Maximum altitude.......... ......... .......... 2,000 m Pollution Degree (IEC 60664) .......... 2 Shock and Vibration T o meet these specif ications, you must panel mount the system. Operating vibration Random (IEC 60068-2-34)......... 5 g rms , 10 to 500 Hz Sinusoidal (IEC 60068-2-6) [...]

  • Страница 34

    NI 9219 Operating Instructions 34 ni.com Note For EMC compliance, operate this de vice with shielded cabling. CE Compliance This product meets the essentia l requirements of applicable European directi ves, as amende d for CE markings, as follows: • 73/23/EEC; Lo w-V oltag e Directive (safety) • 89/336/EEC; Electrom agnetic Compatibilit y Direc[...]

  • Страница 35

    © National Instruments Corp. 35 NI 9219 Operating Instructions Calibration Y ou can obtain the calibration cert ificate and information about calibration services for th e NI 9219 at ni.com/calibration . Calibration interval .... ............. .......... 1 year Where to Go for Support The National Instruments W eb site is your complete resource fo[...]

  • Страница 36

    © 2007 National I nstruments Corp. All rights reserved. 374473D-01 Jun07 National Instruments, NI, n i.com, and LabVIEW are trademarks of National Instruments Corporation. Refer to the Terms of Use section on ni.com/legal for more information about Nat ional Instruments trademarks. Other product and company names ment ioned herein are trademarks o[...]