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NI 9232 Operating Instructions and Specifications

Stopband

The digital filter significantly attenuates all signals above the
stopband frequency. The primary goal of the digital filter is to
prevent aliasing. Therefore, the stopband frequency scales

precisely with the data rate. The stopband rejection is the minimum
amount of attenuation applied by the digital filter to all signals with
frequencies within the stopband.

Alias-Free Bandwidth

Any signal that appears in the alias-free bandwidth of the NI 9232
is not an aliased artifact of signals at a higher frequency. The

alias-free bandwidth is defined by the ability of the digital filter to
reject frequencies above the stopband frequency, and it is equal to
the data rate minus the stopband frequency.

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Содержание 9232

Страница 1: ...OPERATING INSTRUCTIONS AND SPECIFICATIONS NI 9232 3 Channel 30 V 24 Bit Software Selectable IEPE and AC DC Analog Input Module ni com manuals Deutsch Français ...

Страница 2: ...documentation compatibility for information about chassis and carrier compatibility for the modules you are using rdsoftwareversion forinformation about whichsoftware you need for the modules you are using Note The safety guidelines and specifications in this document are specific to the NI 9232 The other components in the system might not meet the same safety ratings and specifications Refer to t...

Страница 3: ...esult in a hazard You can compromise the safety protection built into the product if the product is damaged in any way If the product is damaged return it to National Instruments for repair Safety Guidelines for Hazardous Locations The NI 9232 is suitable for use in Class I Division 2 Groups A B C D T4 hazardous locations Class I Zone 2 AEx nA IIC T4 and Ex nA IIC T4 hazardous locations and nonhaz...

Страница 4: ...Division 2 Caution For Division 2 and Zone 2 applications install the system in an enclosure rated to at least IP 54 as defined by IEC 60529 and EN 60529 Caution For Division 2 and Zone 2 applications connected IEPE sensors must be within the following limit Capacitance 0 08 μF max Caution For Division 2 and Zone 2 applications connected low impedance sources must include a protection device insta...

Страница 5: ...n evaluated as Ex nC IIC T4 EEx nC IIC T4 Ex nA IIC T4 or Ex nL IIC T4 equipment Electromagnetic Compatibility Guidelines This product was tested and complies with the regulatory requirements and limits for electromagnetic compatibility EMC as stated in the product specifications These requirements and limits are designed to provide reasonable protection against harmful interference when the produ...

Страница 6: ...d your authority to operate it under your local regulatory rules Caution To ensure the specified EMC performance operate this product only with double shielded twisted pair cables and shielded accessories Caution Electrostatic Discharge ESD can damage this product To prevent damage use industry standard ESD prevention measures during installation maintenance and operation Caution To ensure the spe...

Страница 7: ...ld to the chassis ground grounding screw of the chassis as shown in Figure 1 Install a clamp on ferrite bead National Instruments part number 611461 01 ontheinputcablesforeachchannelthatyou are connecting to on the NI 9232 Refer to Figure 1 for a diagram Clamp on ferrite beads must be installed on the cable as close to the module as possible Placing the ferrite elsewhere on the cable noticeably im...

Страница 8: ...2 Operating Instructions and Specifications Figure 1 NI 9232 Cable Connections for EMC Compliance NI 9232 Shield AI0 AI0 Ferrite Shield AI1 AI1 Ferrite Shield AI2 AI2 Ferrite Signal Source Signal Source Signal Source ...

Страница 9: ...oduct 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 the product in a shielded enclosure with shielded and or filtered power and input output ports In addition take precautions when designing selecting and installing measurement probes and cables to...

Страница 10: ...cations Connecting the NI 9232 The NI 9232 has three 2 terminal detachable screw terminal connectors that provide connections to three simultaneously sampled analog input channels Figure 2 NI 9232 Terminal Assignments AI0 AI0 AI1 AI1 AI2 AI2 0 1 0 1 0 1 ...

Страница 11: ...connection The AI terminal provides the excitation return path and the signal ground reference Connecting Signal Sources to the NI 9232 You can connect ground referenced or floating signal sources to the NI 9232 If you make a ground referenced connection between the signal source and the NI 9232 make sure the voltage on the AI and AI connections are in the channel to earth safety voltage range to ...

Страница 12: ... Instructions and Specifications Figure 3 Connecting a Grounded Signal Source to the NI 9232 Figure 4 Connecting a Floating Signal Source to the NI 9232 NI 9232 AI AI Signal Source Common Mode Voltage NI 9232 AI AI Signal Source ...

Страница 13: ...ough the case of the sensor is grounded NI 9232 Circuitry The NI 9232 analog input channels are referenced to an isolated ground through a 50 Ω resistor Each channel is protected from overvoltages The input signal on each channel is buffered conditioned and then sampled by an isolated 24 bit Delta Sigma ADC You can configure each channel in software for AC or DC coupling For channels set to AC cou...

Страница 14: ...eds Wiring for High Vibration Applications 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 or use the NI 9971 backshell kit to protect the connections 4 mA IEPE On Off Amplifier and Prefilter Isolated ADC AC DC Coupling AI AI NI 9232 Common Mode Bias Current Current Limited Res...

Страница 15: ...ational Instruments 15 Figure 6 2 Terminal Detachable Screw Terminal Connector with Ferrule Figure 7 NI 9971 Backshell Note You must use 2 wire ferrules to create a secure connection when connecting more than one wire to a single terminal on the NI 9232 ...

Страница 16: ...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 17: ...erating Instructions and Specifications National Instruments 17 Figure 8 NI 9232 Typical Passband Flatness Frequency Data Rate 0 5 0 4 0 10 0 04 0 06 0 08 0 04 0 02 0 00 0 02 0 10 0 08 0 06 0 3 0 2 0 1 0 Gain dB ...

Страница 18: ... rate The stopband rejection is the minimum amount of attenuation applied by the digital filter to all signals with frequencies within the stopband Alias Free Bandwidth Any signal that appears in the alias free bandwidth of the NI 9232 is not an aliased artifact of signals at a higher frequency The alias free bandwidth is defined by the ability of the digital filter to reject frequencies above the...

Страница 19: ...lt is data rates of 102 4 kS s 51 2 kS s 25 6 kS s 17 067 kS s and so on down to 0 98 kS s depending on the decimation rate and the value of the clock divider 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 The following equation provides the available data rates of the NI 9232 fs where fs i...

Страница 20: ...for the available data rates with the internal master timebase Table 1 Available Data Rates with the Internal Timebase fs kS s Decimation Rate fs kS s Decimation Rate fs kS s Decimation Rate 102 40 64 9 31 64 4 88 64 51 20 128 8 53 256 4 65 128 34 13 64 7 88 64 4 45 64 25 60 256 7 31 128 4 27 256 20 48 64 6 83 64 4 10 64 17 07 128 6 40 256 3 94 128 14 63 64 6 02 64 3 66 256 12 80 256 5 69 128 3 41...

Страница 21: ...9 128 1 83 256 1 16 256 2 56 256 1 71 256 1 11 256 2 44 128 1 60 256 1 07 256 2 33 256 1 51 256 1 02 256 2 23 128 1 42 256 0 98 256 2 13 256 1 35 256 2 05 128 1 28 256 Table 1 Available Data Rates with the Internal Timebase Continued fs kS s Decimation Rate fs kS s Decimation Rate fs kS s Decimation Rate ...

Страница 22: ...l of the modules must share a single master timebase source When using an external timebase with a frequency other than 13 1072 MHz the NI 9232 has a different set of data rates Refer to the software help for information about configuring the master timebase source for the NI 9232 Visit ni com info and enter cseriesdoc for information about C Series documentation Note The cRIO 9151 R Series Expans...

Страница 23: ... 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 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 Sp...

Страница 24: ...ristics Number of channels 3 analog input channels ADC resolution 24 bits Type of ADC Delta Sigma with analog prefiltering Sampling mode Simultaneous Type of TEDS supported IEEE 1451 4 TEDS Class I TEDS capacitive drive 3000 pF Internal master timebase fM Frequency 13 1072 MHz Accuracy 100 ppm Data rate range fs using internal master timebase Minimum 0 985 kS s Maximum 102 4 kS s ...

Страница 25: ...ase Minimum 0 977 kS s Maximum 102 73 kS s Data rates1 fs m 64 128 256 n 1 2 26 Input coupling AC DC software selectable AC cutoff frequency 3 dB 0 1 Hz 0 1 dB 0 87 Hz max 1 The data rate must remain within the appropriate data rate range Refer to the Understanding NI 9232 Data Rates section for more information fM 2 m n ...

Страница 26: ...26 ni com NI 9232 Operating Instructions and Specifications Figure 9 AC cutoff frequency response Frequency Hz 0 5 0 0 0 5 1 0 1 5 2 0 2 5 3 0 10 0 0 1 1 0 Gain dB ...

Страница 27: ...e full scale range1 Minimum 30 87 Vpk Typical 31 5 Vpk Maximum 32 13 Vpk Channel to channel common mode voltage range AI to AI 1 V max IEPE excitation current software selectable on off Minimum 4 mA Typical 4 25 mA IEPE excitation noise 100 nArms IEPE compliance voltage 22 V min 1 The DC AC voltage must be below the overvoltage protection of the NI 9232 ...

Страница 28: ... 5 V Open loop V AI 24 V Overvoltage protection For a low impedance source connected between any two terminals 45 V where Vcommon mode is the channel to channel common mode voltage across two or more NI 9232 channels Vbias is the bias voltage of the IEPE sensor Vfull scale is the full scale voltage of the IEPE sensor 1 Refer to the software help for information on reading the IEPE fault detection ...

Страница 29: ...ecimation 28 fs 3 0 μs Accuracy Stability Gain drift 25 ppm C Offset drift DC coupled 320 μV C Measurement Conditions Percent of Reading Gain Error Percent of Range Offset Error Calibrated max 40 C to 70 C 0 60 0 23 Calibrated typ 23 C 5 C 0 10 0 023 Uncalibrated max 40 C to 70 C 1 50 0 59 Uncalibrated typ 23 C 5 C 0 40 0 12 Range 31 5 V DC coupled ...

Страница 30: ...el to channel 25 mdB 120 mdB Frequency Band 20 Hz to 40 96 kHz channel to channel 0 022 kHz fin 0 045 module to module 0 022 kHz fin 0 045 360 fin fM Frequency Band 20 Hz to 20 48 kHz 20 Hz to 40 96 kHz typical 70 mdB 75 mdB maximum 75 mdB 100 mdB For conformal coated version the maximum flatness for 20 Hz to 20 48 kHz is 76 mdB For conformal coated version the maximum flatness for 20 Hz to 40 96 ...

Страница 31: ...te1 64 fs 128 fs and 256 fs Rejection at oversample rate2 fs 10 24 kS s 95 dB 1 311 MHz fs 102 4 kS s 120 dB 6 554 MHz Crosstalk fin 1 kHz 125 dB Frequency Band 20 Hz to 20 48 kHz 20 Hz to 40 96 kHz AC coupled 0 31 DC coupled 0 025 0 19 1 Refer to the Understanding NI 9232 Data Rates section for information regarding oversample rates 2 Rejection of analog prefilter at oversample rate ...

Страница 32: ...dBFS fs 102 4 kS s 120 dBFS fs 51 2 kS s 123 dBFS fs 25 6 kS s 126 dBFS Input noise Dynamic range fin 1 kHz 60 dBFS Data Rate 102 4 kS s 51 2 kS s 25 6 kS s AC coupled 251 μVrms 171 μVrms 127 μVrms DC coupled 223 μVrms 150 μVrms 112 μVrms Data Rate 102 4 kS s 51 2 kS s 25 6 kS s AC coupled 99 dBFS 102 dBFS 105 dBFS DC coupled 100 dBFS 103 dBFS 106 dBFS ...

Страница 33: ...solated ground 50 Ω Total harmonic distortion THD Intermodulation distortion 10 5424 dBFS DIN 250 Hz 8 kHz 4 1 amplitude ratio 80 dB CCIF 11 kHz 12 kHz 1 1 amplitude ratio 100 dB MTBF Contact NI for Bellcore MTBF or MIL HDBK 217F specifications Input Amplitude 1 kHz 10 kHz 10 5424 dBFS 95 dB 85 dB 20 dBFS 95 dB 85 dB ...

Страница 34: ...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 visit ni com dimensions and search by module number Screw terminal wiring 16 AWG to 28 AWG copper conductor wire with 7 mm 0 28 in of insulation stripped from the end Torque for screw terminals 0 22 N m to 0 25 N m 1 ...

Страница 35: ...2 Weight 142 g 5 0 oz Safety Safety Voltages Connect only voltages that are within the following limits Between any two terminals 45 V max Isolation Channel to channel None Channel to earth ground Continuous 60 VDC Measurement Category I Withstand 1 000 Vrms verified by a 5 s dielectric withstand test ...

Страница 36: ...voltages from specially protected secondary circuits Such voltage measurements include signal levels special equipment limited energy parts of equipment circuits powered by regulated low voltage sources and electronics Caution Do not connect the NI 9232 to signals or use for measurements within Measurement Categories II III or IV Hazardous Locations U S UL Class I Division 2 Groups A B C D T4 Clas...

Страница 37: ...or UL and 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 electrical equipment for measurement control and laboratory use EN 61326 1 IEC 61326 1 Class A emissions Industrial immunity EN 55011 CISPR 11 Group 1 Class A emissions AS NZS CISPR 11 Group...

Страница 38: ...ial requirements of applicable European Directives as follows 2006 95 EC Low Voltage Directive safety 2004 108 EC Electromagnetic Compatibility Directive EMC Online Product Certification To obtain product certifications and the Declaration of Conformity DoC for this product visit ni com certification search by module number or product line and click the appropriate link in the Certification column...

Страница 39: ...perating 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 orientations Environmental 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 C to 70 C Storage ...

Страница 40: ...signing 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 customers For additional environmental information refer to the Minimize Our Environmental Impact web page at ni com environment This page contains the environmental regulations and directives with which...

Страница 41: ...atives 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 information about calibration services for the NI 9232 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 ...

Страница 42: ...your National Instruments product Product registration facilitates technical support and ensures that you receive important information updates from NI National Instruments corporate headquarters is located at 11500 North Mopac Expressway Austin Texas 78759 3504 National Instruments also has offices located around the world For telephone support in the United States create your service request at ...

Страница 43: ...ents 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 export compliance for the National Instruments global trade compliance policy and how to obtain relevant HTS codes ECCNs and other import export data NI MAKES NO EXPRESS OR IMPLIED WARRANTIES AS TO THE ...

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