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Bedienungsanleitung National Instruments NI 9219

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  • National Instruments NI 9219 - page 1

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

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ............ .......... ...

  • National Instruments NI 9219 - page 22

    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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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, ? ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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) ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

  • National Instruments NI 9219 - page 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 ...

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