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National Instruments NI 9227E, Инструкция по эксплуатации и технические характеристики

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National Instruments Corp.

17

NI 9227E Operating Instructions and Specifications

Stability

Gain drift .................................... ±21 ppm/°C
Offset drift .................................. ±51 

μ

A/°C

Post calibration gain match
(channel-to-channel, 

f

in

 = 20 kHz).... ±130 mdB max

Crosstalk

(

f

in

 = 1 kHz) ............................... –90 dB

(

f

in

 = 50 Hz) ............................... –115 dB

Phase match

Channel-to-channel, max ........... 0.1°/kHz
Module-to-module, max............. 0.1°/kHz + 360° · 

f

in

/

f

M

Phase linearity (

f

s 

= 50 kS/s) ............ 0.1° max

Input delay ........................................ 38.4/

f

s

 + 3.2 

μ

s

Passband

Frequency ................................... 0.453 · 

f

s

Flatness (

f

s 

= 50 kS/s) ................ ±100 mdB max

Содержание NI 9227E

Страница 1: ...OPERATING INSTRUCTIONS AND SPECIFICATIONS NI 9227E 4 Channel 5 Arms 24 Bit Simultaneous Channel to Channel Isolated Analog Input Module ...

Страница 2: ...g For information 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 Caution National Instruments makes no electromagnetic compatibility EMC or CE marking compliance claims for the NI 9227E The end product supplier is responsible for conformity to any and all compliance requir...

Страница 3: ...9227E Operating Instructions and Specifications NI 9227E Dimensions The following figure shows the dimensions of the NI 9227E Figure 1 NI 9227E Dimensions in Millimeters Inches 0 0 0 00 26 7 1 05 58 4 2 30 66 0 2 60 73 4 2 89 0 0 0 00 ...

Страница 4: ...necting the NI 9227E The NI 9227E has four 2 terminal detachable screw terminal connectors that provide connections for four simultaneously sampled isolated analog input channels Figure 2 NI 9227E Terminal Assignments AI0 AI0 AI1 AI1 AI2 AI2 AI3 AI3 0 1 0 1 0 1 0 1 ...

Страница 5: ...connection between the current source and the NI 9227E make sure the voltage on the AI and AI connections are in the channel to earth safety voltage range to ensure proper operation of the NI 9227E Refer to the Specifications section for more information about operating voltages Note You must use 2 wire ferrules to create a secure connection when connecting more than one wire to a single terminal ...

Страница 6: ...structions and Specifications 6 ni com Figure 3 Connecting a Grounded Current Source to the NI 9227E Figure 4 Connecting a Floating Current Source to the NI 9227E NI 9227E Current Source AI AI NI 9227E Current Source AI AI ...

Страница 7: ...al on each channel 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 for an illustration of the circuitry for one channel of the NI 9227E Figure 5 Input Circuitry for One Channel of the NI 9227E NI 9227E AI AI ADC Amplifier Shunt Resistor Prefilter ...

Страница 8: ...ithin the 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 least the amount of the stopband rejection Passband The signals within the passband have frequency dependent gain or attenuation The small amount of variation in gain with respect to frequenc...

Страница 9: ...tional Instruments Corp 9 NI 9227E Operating Instructions and Specifications Figure 6 Typical Passband Flatness for the NI 9227E Frequency Data Rate Hz 0 5 0 4 0 025 0 000 0 025 0 050 0 3 0 2 0 1 0 Gain dB ...

Страница 10: ...bandwidth of the NI 9227E 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 it is equal to the data rate minus the stopband frequency Understanding NI 9227E Data Rates The frequency of a master timebase fM controls the data rate fs of the NI 9227E The NI 9227E includes ...

Страница 11: ...9227E fs where n is any 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 master timebase of 12 8 MHz the result is data rates of 50 kS s 25 kS s 16 667 kS s and so on down to 1 613 kS s depending on the value of n When using an external timebase wi...

Страница 12: ... mode If the 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 system is in sleep mode you cannot communicate with the modules In sleep mode the system consumes minimal power and may dissipate less heat than it does in normal mode Refer to the Specific...

Страница 13: ...internal to any enclosures unless otherwise noted All voltages are relative to the AI signal on each channel unless otherwise noted Input Characteristics Number of channels 4 analog input channels ADC resolution 24 bits Type of ADC Delta Sigma with analog prefiltering Sampling mode Simultaneous Internal master timebase fM Frequency 12 8 MHz Accuracy 100 ppm max ...

Страница 14: ...5 S s Maximum 51 2 kS s Data rates1 fs n 1 2 31 Safe operating input range 2 5 Arms 1 The data rate must remain within the appropriate data rate range Refer to the Understanding NI 9227E Data Rates section for more information 2 The maximum recommended continuous RMS current value applied simultaneously on all four channels to keep the power dissipation inside the module within safe operating limi...

Страница 15: ... 5 Arms Instantaneous measuring range2 Minimum 14 051 A peak Typical 14 977 A peak at 23 5 C Typical scaling coefficient 1 785397 μA LSB Input coupling DC Input impedance AI to AI 12 mΩ Input noise fs 50 kS s 400 μArms 1 Overcurrent conditions to keep the module operating within specified limits 2 The maximum DC current that produces a non saturated reading ...

Страница 16: ... of Reading Gain Error Percent of Range Offset Error Calibrated max 40 to 85 C 0 37 0 18 Calibrated typ 23 C 5 C 0 1 0 05 Uncalibrated max 40 to 85 C 5 0 2 4 Uncalibrated typ 23 C 5 C 2 5 1 0 Range equals 7 07 A peak 5 Arms Measurement Conditions Percent of Reading Gain Error Percent of Range Offset Error Calibrated max 40 to 85 C 0 38 0 19 Range equals 7 07 A peak 5 Arms ...

Страница 17: ...51 μA C Post calibration gain match channel to channel fin 20 kHz 130 mdB max Crosstalk fin 1 kHz 90 dB fin 50 Hz 115 dB Phase match Channel to channel max 0 1 kHz Module to module max 0 1 kHz 360 fin fM Phase linearity fs 50 kS s 0 1 max Input delay 38 4 fs 3 2 μs Passband Frequency 0 453 fs Flatness fs 50 kS s 100 mdB max ...

Страница 18: ...andwidth 0 453 fs 3 dB bandwidth fs 50 kS s 24 609 kHz CMRR fin 50 Hz 150 dB SFDR fin 1 kHz 60 dBFS 110 dB Total Harmonic Distortion THD fin 1 kHz 1 dBFS 95 dB MTBF Contact NI for Bellcore MTBF or MIL HDBK 217F specifications Power Requirements Power consumption from chassis Active mode 730 mW max Sleep mode 50 μW max ...

Страница 19: ...ule If needed use a soft bristle brush for cleaning around components Note For two dimensional drawings and three dimensional models of the C Series module and connectors visit ni com dimensions and search by module number 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 95 to 2 21 lb in 1 M...

Страница 20: ...nly voltages that are within the following limits Channel to channel Continuous 250 Vrms Measurement Category II Basic insulation Withstand 1 390 Vrms verified by a 5 s dielectric withstand test Channel to earth ground Continuous 250 Vrms Measurement Category II Double insulation Withstand 2 300 Vrms verified by a 5 s dielectric withstand test ...

Страница 21: ...for example 115 V for U S or 230 V for Europe Caution Do not connect the NI 9227E to signals or use for measurements within Measurement Categories III or IV Safety Standards This product meets the requirements of the following standards of safety for electrical equipment for measurement control and laboratory use when installed in a suitable enclosure IEC 61010 1 EN 61010 1 UL 61010 1 CSA 61010 1 ...

Страница 22: ... column Environmental National Instruments C Series modules are intended for indoor use only but may be used outdoors if installed in a suitable enclosure Refer to the manual for the chassis you are using for more information about meeting these specifications Operating temperature IEC 60068 2 1 IEC 60068 2 2 40 to 85 C Storage temperature IEC 60068 2 1 IEC 60068 2 2 40 to 85 C Operating humidity ...

Страница 23: ...ironmental information refer to the NI and the Environment Web page at ni com environment This page contains the environmental regulations and directives with which NI complies as well as other environmental information not included in this document Waste Electrical and Electronic Equipment WEEE EU Customers At the end of the product life cycle all products must be sent to a WEEE recycling center ...

Страница 24: ...mation about calibration services for the NI 9227E at ni com calibration Calibration interval 1 year ᄤֵᙃѻક ᶧ ࠊㅵ ࡲ Ё RoHS Ё ᅶ National Instruments ヺড়Ё ᄤֵᙃ ѻકЁ䰤ࠊՓ ᶤѯ ᆇ 䋼ᣛҸ RoHS DŽ Ѣ National Instruments Ё RoHS ড়㾘ᗻֵᙃˈ䇋ⱏᔩ ni com environment rohs_chinaDŽ For information about China RoHS compliance go to ni com environment rohs_china ...

Страница 25: ...ents corporate headquarters is located at 11500 North Mopac Expressway Austin Texas 78759 3504 National Instruments also has offices located around the world to help address your support needs For telephone support in the United States create your service request at ni com support and follow the calling instructions or dial 512 795 8248 For telephone support outside the United States visit the Wor...

Страница 26: ...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 companies For patents covering National Instruments products technology refer to the appropriate location Help Patents in your software the patents txt file on your media or the National Instruments Patent Notice at ni com pat...

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