OPERATING INSTRUCTIONS AND SPECIFICATIONS
NI 9227
4-Channel, 5 A
rms
, 24-Bit, Simultaneous,
Channel-to-Channel Isolated Analog Input Module
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Page 1: ...OPERATING INSTRUCTIONS AND SPECIFICATIONS NI 9227 4 Channel 5 Arms 24 Bit Simultaneous Channel to Channel Isolated Analog Input Module ni com manuals Deutsch Fran ais...
Page 2: ...specific to the NI 9225 The other components in the system might not meet the same safety ratings and specifications Refer to the documentation for each component in the system to determine the safet...
Page 3: ...o take precautions to avoid electrical shock Caution Do not operate the NI 9242 in a manner not specified in this manual Product misuse can result in a hazard You can compromise the safety protection...
Page 4: ...ge wiring is performed only by qualified personnel adhering to local electrical standards Caution Do not mix hazardous voltage circuits and human accessible circuits on the same module Caution Make su...
Page 5: ...voltage LIVE 42 4 Vpk 60 VDC 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...
Page 6: ...necting the NI 9227 The NI 9227 has four 2 terminal detachable screw terminal connectors that provide connections for four simultaneously sampled isolated analog input channels Figure 2 NI 9227 Termin...
Page 7: ...ce to the AI terminal If you make a ground referenced connection between the current source and the NI 9227 make sure the voltage on the AI and AI connections are in the channel to earth safety voltag...
Page 8: ...3 and 4 for illustrations of how to connect grounded and floating current sources to the NI 9227 Figure 3 Connecting a Grounded Current Source to the NI 9227 Figure 4 Connecting a Floating Current Sou...
Page 9: ...n 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 Ref...
Page 10: ...nts recommends that 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 illustrat...
Page 11: ...nals within 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...
Page 12: ...als above the stopband frequency The primary goal of the filter is to prevent aliasing Therefore the stopband frequency scales precisely with the data rate The stopband rejection is the minimumamounto...
Page 13: ...7 Data Rates The frequency of a master timebase fM controls the data rate fs of the NI 9227 The NI 9227 includes an internal master timebase with a frequency of 12 8 MHz but the module also can accept...
Page 14: ...pecifications 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...
Page 15: ...sleep 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 T...
Page 16: ...otected for electromagnetic interference As a result this device may experience reduced measurement accuracy or other temporary performance degradation when connected cables are routed in an environme...
Page 17: ...DC 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 Data rate range fs using internal...
Page 18: ...The data rate must remain within the appropriate data rate range Refer to the Understanding NI 9227 Data Rates section for more information 2 Refer to the Safety Guidelines section for more informatio...
Page 19: ...0 Arms Measurement Conditions Percent of Reading Gain Error Percent of Range Offset Error Calibrated max 40 to 70 C 0 37 0 18 Calibrated typ 23 C 5 C 0 1 0 05 Uncalibrated max 40 to 70 C 5 0 2 4 Uncal...
Page 20: ...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 lin...
Page 21: ...free bandwidth 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...
Page 22: ...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 cond...
Page 23: ...earth ground Continuous 250 Vrms Measurement Category II Withstand 2 300 Vrms verified by a 5 s dielectric withstand test Measurement Category II is for measurements performed on circuits directly co...
Page 24: ...other safety certifications refer to the product label or the Online Product Certification section Electromagnetic Compatibility This product meets the requirements of the following EMC standards for...
Page 25: ...the essential requirements of applicable European Directives as follows 2006 95 EC Low Voltage Directive safety 2004 108 EC Electromagnetic Compatibility Directive EMC Online Product Certification Re...
Page 26: ...al 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 Environmental National Instruments C Series modules are intended f...
Page 27: ...gning and manufacturing products in an environmentally responsible manner NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI custo...
Page 28: ...Instruments WEEE initiatives and compliance with WEEE Directive 2002 96 EC on Waste and Electronic Equipment visit ni com environment weee Calibration You can obtain the calibration certificate and in...
Page 29: ...and other services Visit ni com register to register your National Instruments product Product registration facilitates technical support and ensures that you receive important information updates fro...
Page 30: ...as offices located around the world For telephone support in the United States create your service request at ni com support or dial 1 866 ASK MYNI 275 6964 For telephone support outside the United St...
Page 31: ...nts You can find information about end user license agreements EULAs and third party legal notices in the readme file for your NI product Refer to the Export Compliance Information at ni com legal exp...
