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National Instruments NI-9244, Руководство пользователя и технические характеристики

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National Instruments NI-9244 Скачать руководство пользователя страница 33

NI 9244 User Manual and Specifications

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© National Instruments

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33

Specifications

The following specifications are typical for the range -40 °C to 70 °C 
unless otherwise noted.

Input Characteristics

Scaling coefficient ............................ 118,911 nV/LSB
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 (

f

M

)

Frequency ................................... 12.8 MHz
Accuracy..................................... ±100 ppm max

Data rate range (

f

s

) using internal master timebase

Minimum.................................... 1.613 kS/s
Maximum ................................... 50 kS/s

Data rate range (

f

s

) using external master timebase

Minimum.................................... 390.625 S/s
Maximum ................................... 51.2 kS/s

Содержание NI-9244

Страница 1: ...USER MANUAL AND SPECIFICATIONS NI 9244 4 Channel 400 Vrms L N 800 Vrms L L 24 Bit Simultaneous Analog Input Module ni com manuals Deutsch Fran ais...

Страница 2: ...ific to the NI 9244 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 safety rat...

Страница 3: ...ent may result in bodily injury Warning This icon denotes a warning advising you to take precautions to avoid electrical shock Caution Do not operate the NI 9244 in a manner not specified in this user...

Страница 4: ...rsonnel adhering to local electrical standards Caution Do not mix hazardous voltage circuits and human accessible circuits on the same module Caution Make sure that devices and circuits connected to t...

Страница 5: ...NI 9244 User Manual and Specifications National Instruments 5 Figure 1 shows the NI 9969 connector backshell Figure 1 NI 9969 Connector Backshell...

Страница 6: ...ntially 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 area...

Страница 7: ...res of 40 C Ta 70 C If you are using the NI 9244 in Gas Group IIC hazardous locations you must use the device in an NI chassis that has been evaluated as Ex nC IIC T4 EEx nC IIC T4 Ex nA IIC T4 or Ex...

Страница 8: ...ntended for use in industrial locations There is no guarantee that harmful interference will not occur in a particular installation when the product is connected to a test object or if the product is...

Страница 9: ...visit ni com certification and search for the LR certificate or look for the Lloyd s Register mark on the product label Caution In order to meet the EMC requirements for marine applications install th...

Страница 10: ...10 ni com NI 9244 User Manual and Specifications Connecting the NI 9244 The NI 9244 provides connections for four analog input channels Figure 2 NI 9244 Pinout AI0 AI1 AI2 Neutral 0 1 2 3...

Страница 11: ...s you must use the NI 9969 Connector Backshell as shown in Figure 1 with the 4 terminal connector on the NI 9244 You can use the backshell with 12 AWG to 24 AWG wires with the NI 9969 12 AWG to 14 AWG...

Страница 12: ...m NI 9244 User Manual and Specifications Figure 3 12 AWG to 14 AWG Installation 1 Route wires over the strain relief piece 2 Secure strain relief piece and NI 9969 backshell in place using captive scr...

Страница 13: ...NI 9244 User Manual and Specifications National Instruments 13 Installing the NI 9969 Using16 AWG Wire Complete the following steps to install the NI 9969 using 16 AWG wires...

Страница 14: ...com NI 9244 User Manual and Specifications Figure 4 16 AWG Installation 1 Route wires through the strain relief pieces 2 Secure strain relief piece and NI 9969 backshell in place using captive screws...

Страница 15: ...NI 9244 User Manual and Specifications National Instruments 15 Installing the NI 9969 Using18 AWG to 24 AWG Wire Complete the following steps to install the NI 9969 using 18 AWG to 24 AWG wires...

Страница 16: ...m NI 9244 User Manual and Specifications Figure 5 18 AWG to 24 AWG Installation 1 Route wires over the strain relief piece 2 Secure strain relief piece and NI 9969 backshell in place using captive scr...

Страница 17: ...ns to the NI 9244 The NI 9244 supports standard service levels up to 400 Vrms Line to Neutral L N and 690 Vrms Line to Line L L Note You must use 2 wire ferrules to create a secure connection when con...

Страница 18: ...AI terminal and the Neutral terminal as well as the voltage between the Neutral terminal and the chassis ground Refer to Figure 6 for a diagram of the equivalent voltages the module returns Figure 6 I...

Страница 19: ...sis manual for information about connecting the chassis to earth ground Connecting Phase Measurements You can connect three phase measurement configurations and single phase measurement configurations...

Страница 20: ...ions Connecting Three Phase Measurement Configurations You can connect WYE or delta measurement configurations to the NI 9244 Figure 7 Connecting a 4 Wire WYE Measurement Configuration NI 9244 AI0 Pha...

Страница 21: ...NI 9244 User Manual and Specifications National Instruments 21 Figure 8 Connecting a High Leg Delta Measurement Configuration NI 9244 AI0 Phase A Phase B Phase C Neutral AI2 AI1 Neutral...

Страница 22: ...22 ni com NI 9244 User Manual and Specifications Figure 9 Connecting a 3 Wire Delta Measurement Configuration NI 9244 AI0 Phase A Phase B Phase C AI2 AI1...

Страница 23: ...unded 2 Wire Delta Measurement Configuration Note The 9244 can not measure the entire tolerance range or high crest factor signals on 690 Vrms systems in this configuration Refer to the Specifications...

Страница 24: ...ications Connecting Single Phase Measurement Configurations You can connect 3 wire or 2 wire single phase measurement configurations to the NI 9244 Figure 11 Connecting a 3 Wire Measurement Configurat...

Страница 25: ...To convert L N measurements to L L values calculate the voltage difference between the AI channels using your application software Refer to the following equation for an example of converting L N meas...

Страница 26: ...rt L N measurements to L Earth values add the neutral channel reading to each AI channel reading Refer to the following equation for an example of converting L N measurements to L Earth Line to Earth...

Страница 27: ...ns If an application is subject to high vibration National Instruments recommends that you either use ferrules to terminate wires to the detachable screw terminal connector Refer to Figure 13 for an i...

Страница 28: ...the passband as quantified primarily by passband ripple 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 29: ...gnals 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 minimumamoun...

Страница 30: ...The frequency of a master timebase fM controls the data rate fs of the NI 9244 The NI 9244 includes an internal master timebase with a frequency of 12 8 MHz but the module also can accept an external...

Страница 31: ...he 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...

Страница 32: ...Refer to the chassis manual for information about support for sleep mode If the chassis supports sleep mode refer to the software help for information about enabling sleep mode Typically when a syste...

Страница 33: ...icient 118 911 nV LSB 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 Frequenc...

Страница 34: ...997 5 Vpk Minimum 992 Vpk Overvoltage withstand 800 Vrms continuous 1000 Vrms for 1 s Surge withstand 5 kV 1 2 s 50 s Input coupling DC Input impedance AIx to Ground and Neutral to GND 2 M 1 The data...

Страница 35: ...itions Percent of Reading Gain Error Percent of Range Offset Error Calibrated max 40 C to 70 C 0 17 0 14 Calibrated typ 23 C 5 C 0 043 0 012 Uncalibrated max 40 C to 70 C 0 42 0 32 Uncalibrated typ 23...

Страница 36: ...root of the number of samples in the acquisition window Nonlinearity at 25 C 24 ppm Stability Gain drift 5 ppm C Offset drift 6 mV C Post calibration gain match channel to channel max Up to 20 kHz 109...

Страница 37: ...ency 0 453 fs Flatness 0 kHz to 20 kHz 100 mdB max 0 kHz to 10 kHz 20 mdB max Negative phase sequence error at 50 Hz and 60 Hz At 5 unbalance Maximum 0 13 Typical 0 05 At 1 unbalance Maximum 0 13 Typi...

Страница 38: ...5 dB Alias free bandwidth 0 453 fs Anti alias rejection fS 50 kS s 50 dB 3 dB bandwidth fs 50 kS s 0 49 fs Crosstalk 60 Hz 100 dB Crosstalk 1 kHz 74 dB CMRR fin 60 Hz 78 dB SFDR 1 kHz 60 dBFS 120 dB T...

Страница 39: ...p mode 320 W max Physical Characteristics If you need to clean the module wipe it with a dry towel Note For two dimensional drawings and three dimensional models of the C Series module and connectors...

Страница 40: ...nly voltages that are within the following limits Maximum working voltage channel to earth ground Up to 2 000 m altitude Continuous 400 Vrms Measurement Category III 2 001 to 5 000 m altitude Continuo...

Страница 41: ...socket outlets in the fixed installation and stationary motors with permanent connections to fixed installations Measurement Category II is for measurements performed on circuits directly connected t...

Страница 42: ...uirements of the following standards of safety for electrical equipment for measurement control and laboratory use IEC 61010 1 EN 61010 1 UL 61010 1 CSA 61010 1 EN 60079 0 2009 EN 60079 15 2010 IEC 60...

Страница 43: ...11 Group 1 Class A emissions EN 55022 CISPR 22 Class A emissions EN 55024 CISPR 24 Immunity AS NZS CISPR 11 Group 1 Class A emissions AS NZS CISPR 22 Class A emissions FCC 47 CFR Part 15B Class A emi...

Страница 44: ...ions refer to the Online Product Certification section CE Compliance This product meets the essential requirements of applicable European Directives as follows 2006 95 EC Low Voltage Directive safety...

Страница 45: ...g vibration Random IEC 60068 2 64 5 grms 10 Hz to 500 Hz Sinusoidal IEC 60068 2 6 5 g 10 Hz 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 orientation...

Страница 46: ...n environmentally responsible manner NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers For additional environmental inf...

Страница 47: ...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 i...

Страница 48: ...vices Visit ni com register to register your National Instruments product Product registration facilitates technical support and ensures that you receive important information updates from NI A Declar...

Страница 49: ...has 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 S...

Страница 50: ...truments 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 patents You can find...

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