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National Instruments NI 9229, Руководство по эксплуатации

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© National Instruments Corp.

11

NI 9229/9239 

The NI 9229/9239 analog inp

u

t channels are floating with respect 

to earth gro

u

nd and each other. The incoming analog signal on each 

channel is conditioned, b

u

ffered, and then sampled by a 24-bit 

Delta-Sigma ADC. 

Each channel provides an independent signal path and ADC, 
enabling yo

u

 to sample all fo

u

r channels sim

u

ltaneo

u

sly. Refer to 

Fig

u

re 5 for an ill

u

stration of the circ

u

itry for one channel.

 

Figure 5.  

Input Circuitry for One Channel of the NI 9229/9239

NI 9229/9239

AI+

AI–

ADC

Amplifier

Overvoltage

Protection

Prefilter

Содержание NI 9229

Страница 1: ...OPERATING INSTRUCTIONS AND SPECIFICATIONS NI 9229 9239 4 Channel 60 10 V 24 Bit Simultaneous Channel to Channel Isolated Analog Input Modules ni com manuals Deutsch Fran ais...

Страница 2: ...ion about installing configuring and programming the system refer to the system documentation Visit ni com info and enter cseriesdoc for information about C Series documentation Note The safety guidel...

Страница 3: ...hazardous voltages are connected to the module take the following precautions A hazardous voltage is a voltage greater than 42 4 Vpk or 60 VDC to earth ground Caution Ensure that hazardous voltage wi...

Страница 4: ...DC you must ensure that devices and circuits connected to the module are properly insulated from human contact You must use the NI 9971 connector backshell kit to ensure that the terminals are not acc...

Страница 5: ...potentially explosive environment Not following these guidelines may result in serious injury or death Caution Do not disconnect I O side wires or connectors unless power has been switched off or the...

Страница 6: ...thin the following limit Capacitance 0 01 F max Special Conditions for Hazardous Locations Use in Europe This equipment has been evaluated as Ex nA IIC T4 equipment under DEMKO Certificate No 07 ATEX...

Страница 7: ...tificate or look for the Lloyd s Register mark on the module Caution To meet radio frequency emission requirements for marine applications use shielded cables and install the system in a metal enclosu...

Страница 8: ...Connecting the NI 9229 9239 The NI 9229 9239 provides connections for four simultaneously sampled isolated analog input channels Figure 2 NI 9229 9239 Terminal Assignments AI0 AI0 AI1 AI1 AI2 AI2 AI3...

Страница 9: ...e to the AI terminal or connector and connect the negative signal of the signal source to the AI terminal or connector If you make a ground referenced connection between the signal source and the NI 9...

Страница 10: ...239 10 ni com Figure 3 Connecting a Grounded Signal Source to the NI 9229 9239 Figure 4 Connecting a Floating Signal Source to the NI 9229 9239 NI 9229 9239 Signal Source AI AI NI 9229 9239 Signal Sou...

Страница 11: ...is conditioned buffered and then sampled by a 24 bit Delta Sigma ADC Each channel provides an independent signal path and ADC enabling you to sample all four channels simultaneously Refer to Figure 5...

Страница 12: ...you either use ferrules to terminate wires to the detachable screw terminal connector or use the NI 9971 backshell kit to protect the connections Refer to Figure 6 for an illustration of using ferrul...

Страница 13: ...e passband as quantified primarily by passband flatness and phase nonlinearity All signals that appear in the alias free bandwidth are either unaliased signals or signals that have been filtered by at...

Страница 14: ...NI 9229 9239 14 ni com Figure 7 Typical Passband Flatness for the NI 9229 9239 Frequency Data Rate 0 5 0 4 0 025 0 000 0 025 0 050 0 3 0 2 0 1 0 Gain dB...

Страница 15: ...e NI 9229 9239 is not an aliased artifact of signals at a higher frequency The alias free bandwidth is defined by the ability of the filter to reject frequencies above the stopband frequency and equal...

Страница 16: ...integer from 1 to 31 However the data rate must remain within the appropriate data rate range Refer to the Specifications section for more information about the data rate range When using the internal...

Страница 17: ...e chassis supports sleep mode refer to the software help for information about enabling sleep mode Visit ni com info and enter cseriesdoc for information about C Series documentation Typically when a...

Страница 18: ...ed The specifications are the same for the NI 9229 and the NI 9239 unless otherwise noted Input Characteristics Number of channels 4 analog input channels ADC resolution 24 bits Type of ADC Delta Sigm...

Страница 19: ...ge protection 100 V Input coupling DC Input impedance AI to AI 1 M 1 The data rate must remain within the appropriate data rate range Refer to the Understanding NI 9229 9239 Data Rates section for mor...

Страница 20: ...surement Conditions Percent of Reading Gain Error Percent of Range Offset Error Calibrated max 40 to 70 C 0 13 0 05 Calibrated typ 25 C 5 C 0 03 0 008 Uncalibrated max 40 to 70 C 1 2 0 55 Uncalibrated...

Страница 21: ...y Gain drift 5 ppm C Offset drift NI 9229 150 V C NI 9239 26 V C Measurement Conditions Percent of Reading Gain Error Percent of Range Offset Error Calibrated max 40 to 70 C 0 13 0 06 Calibrated typ 2...

Страница 22: ...29 0 045 kHz max NI 9239 0 075 kHz max Phase mismatch module to module max NI 9229 0 045 kHz 360 fin fM NI 9239 0 075 kHz 360 fin fM Phase nonlinearity fs 50 kS s 0 11 max Input delay NI 9229 38 4 fs...

Страница 23: ...60 Hz NI 9229 116 dB NI 9239 126 dB SFDR 1 kHz 60 dBFS 128 dBFS Total Harmonic Distortion THD 1 kHz 1 dBFS 99 dB 1 kHz 20 dBFS 105 dB MTBF 662 484 hours at 25 C Bellcore Issue 2 Method 1 Case 3 Limite...

Страница 24: ...tive mode 760 mW max Sleep mode 16 mW max Physical Characteristics If you need to clean the module wipe it with a dry towel Screw terminal wiring 16 to 28 AWG copper conductor wire with 7 mm 0 28 in o...

Страница 25: ...rms Measurement Category II Withstand 2 300 Vrms verified by a 5 s dielectric withstand test Channel to channel isolation Continuous 250 Vrms Measurement Category II Withstand 1 390 Vrms verified by a...

Страница 26: ...ecial equipment limited energy parts of equipment circuits powered by regulated low voltage sources and electronics Caution Do not connect to signals or use for measurements within Measurement Categor...

Страница 27: ...1010 1 UL 61010 1 CSA 61010 1 Note For UL and other safety certifications refer to the product label or visit ni com certification search for the module number or product line and click the appropriat...

Страница 28: ...e chassis you are using for more information about meeting these specifications Operating temperature IEC 60068 2 1 IEC 60068 2 2 40 to 70 C Storage temperature IEC 60068 2 1 IEC 60068 2 2 40 to 85 C...

Страница 29: ...2 64 5 grms 10 to 500 Hz Sinusoidal IEC 60068 2 6 5 g 10 to 500 Hz Operating shock IEC 60068 2 27 30 g 11 ms half sine 50 g 3 ms half sine 18 shocks at 6 orientations Electromagnetic Compatibility Th...

Страница 30: ...ion of Conformity DoC for this product for any additional regulatory compliance information To obtain the DoC for this product visit ni com certification search for the module number or product line a...

Страница 31: ...mation not included in this document Waste Electrical and Electronic Equipment WEEE EU Customers At the end of their life cycle all products must be sent to a WEEE recycling center For more informatio...

Страница 32: ...bleshooting and application development self help resources to email and phone assistance from NI Application Engineers National Instruments corporate headquarters is located at 11500 North Mopac Expr...

Страница 33: ...6393737 Italy 39 02 41309277 Japan 0120 527196 Korea 82 02 3451 3400 Lebanon 961 0 1 33 28 28 Malaysia 1800 887710 Mexico 01 800 010 0793 Netherlands 31 0 348 433 466 New Zealand 0800 553 322 Norway 4...

Страница 34: ...the Terms of Use section on ni com legal for more information about National Instruments trademarks Other product and company names mentioned herein are trademarks or trade names of their respective c...

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