Instruction/ maintenance manual of the product NI 9229E National Instruments
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OPERATING INSTRUCTIONS AND S PECIFICATIONS NI 9229E/9239E 4-Channel, ±60/±10 V, 2 4-Bit Simultaneous, Channel-to-Chan nel Isolated Analog In put Modules.
NI 9229E/9239E 2 ni.com This document describes ho w to use the National Instruments 9229E and National Instruments 9239E and includes dimensions, te rminal assignme nts, and specif icatio ns. In th is document, the NI 9229E and NI 9239E are referred to inclusi vely as the NI 9229E /9239E.
© National Inst ruments Corp. 3 NI 9229E/9239E NI 9229E/9239E Dimensions The following figure sho ws th e dimensions of the NI 9229 E /9239E. Figure 1. NI 9229 E /9239E Dimensions in Milli meters (Inches) 0.0 (0.00) 26.7 (1.05) 58.4 (2.30) 66.0 (2.60) 73.
NI 9229E/9239E 4 ni.com Connecting the NI 9229E/9239E The NI 9229E /9239E provides connections for four simultaneously sampled, isolated analog input channels.
© National Inst ruments Corp. 5 NI 9229E/9239E The NI 9229E /9239E has four 2-termin al detachable scre w-terminal connectors. Note Y ou must use 2-wire ferrules to create a secure connection when connecting mo re than one wire to a single terminal on the NI 9229E /9239E.
NI 9229E/9239E 6 ni.com Figure 3. Connecting a Ground ed Signal Source to the NI 92 29E /9239E Figure 4. Connecting a Floa ting Signal Source to the NI 922 9E /9239E NI 9229E/9239E Signal Source AI–.
© National Inst ruments Corp. 7 NI 9229E/9239E The NI 9229E /9239E analog input channels are floating with respect to earth ground and each ot her . The incoming analog sign al on each channel is c onditioned, buf fered, and then sampled by a 24-bit Delta-Sigma ADC.
NI 9229E/9239E 8 ni.com Understanding NI 9229E/9239E Filtering The NI 9229E /9239E uses a combination of analog and digital filte ring to pro vide an accurate representation of in-band signals while rejecting out-of-band si gnals. The fi lters discriminate between signals based on the frequency range, or bandwidth, of the signal.
© National Inst ruments Corp. 9 NI 9229E/9239E Figure 6. Typical Passband Flatn ess for the NI 9229E /9239E F requency/Data Rate 0.5 0.4 0.025 0.000 –0.
NI 9229E/9239E 10 ni.com Stopband The f ilter signif icantly attenu at es all signals abo ve the stop band frequency . The primary go al of the f ilter is to prev ent aliasing.
© National Inst ruments Corp. 11 NI 9229E/9239E to control sampling, all of the module s must share a single master timebase source. Refer to the software help for information about configuring the master timebas e source for the NI 9229E /9239E. Vi s i t ni.
NI 9229E/9239E 12 ni.com Sleep Mode This module supports a lo w-powe r sleep mode. Su pport for sleep mode at the system le vel depends on the chassis that the module is plugged into. Refer to the chassi s manual for information about support for sleep mode.
© National Inst ruments Corp. 13 NI 9229E/9239E Specifications The follo wing specificat ions are typical for the range – 40 to 85 °C internal to any enclosures unless otherwise noted. All voltages are relati ve to the AI– signal on each ch annel unless otherwise noted.
NI 9229E/9239E 14 ni.com Data rate range ( f s ) using e xternal mast er timebase Minimum ................... ......... ........ 390.625 S/s Maximum ......... ............ ......... ..... 51.2 kS/s Data rates 1 ( f s ) .. ......... ......... .........
© National Inst ruments Corp. 15 NI 9229E/9239E Accuracy , NI 9229E Measurement 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.
NI 9229E/9239E 16 ni.com Accuracy , NI 9239E Input noise NI 9229E ........ ........... ............ ..... 320 μ V rms NI 9239E ........ ........... ............ ..... 70 μ V rms Stability Gain drift .......... ......... ............ ..... ±5 ppm /°C Offset drift NI 9229E .
© National Inst ruments Corp. 17 NI 9229E/9239E Post calibration gain matc h (ch-to-ch, 20 kHz) ...... ........... ........... . 0.22 dB max Crosstalk (1 kHz) ......... ........... .......... –130 dB Phase mismatch (ch-to-ch) NI 9229E ........ ....
NI 9229E/9239E 18 ni.com Alias-free bandwidth ..... ......... .......... 0.453 · f s –3 dB prefilter band width ( f s = 50 kS/s) ................ ......... ........... . 24.56 kHz CMRR ( f in = 60 Hz) NI 9229E .......... ............ ........... ..
© National Inst ruments Corp. 19 NI 9229E/9239E Power Requirements Power consumption from chassis Active mode .............. ......... ........ 740 mW max Sleep mode . ......... ........... ......... ... 25 μ W max Thermal dissipation (at 70 °C) Active mode .
NI 9229E/9239E 20 ni.com T orque for screw terminals .......... ..... 0.22 to 0.25 N · m ( 1 . 9 5t o2 . 2 1l b· i n . ) Ferrules ............. ......... ........... ......... ... 0.25 mm 2 to 0.5 mm 2 W e ight ........ ........... ........... .....
© National Inst ruments Corp. 21 NI 9229E/9239E Measurement Cate gory II is fo r measurements performed on circuits directly conn ected to th e electrical distribution system. This cate gory refers to local-le vel electrical distr ibution, such as that provided b y a standard wall outlet, for example, 115 V for U.
NI 9229E/9239E 22 ni.com Online Product Certification Refer to the product Declarat ion of Conformity (Do C) for additional regulatory compliance information.
© National Inst ruments Corp. 23 NI 9229E/9239E Maximum altitude.......... ......... .......... 2,000 m Pollution Degree (IEC 60664) .......... 2 Environmental Mana gement National Instruments is committe d to designing and manufacturing products in an en vironmentally responsible manner .
NI 9229E/9239E 24 ni.com Calibration Y ou can obtain the calibration cert ificate and information about calibration services for the NI 9229E/9239E at ni.
© National Inst ruments Corp. 25 NI 9229E/9239E Where to Go for Support The National Instruments W eb site is your complete resource for technical support. At ni.com/support you ha ve access to ev erything from troubleshooting and application de velopment self-help resources to emai l and phone assistance from NI Application Engineers.
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An important point after buying a device National Instruments NI 9229E (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought National Instruments NI 9229E yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data National Instruments NI 9229E - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, National Instruments NI 9229E you will learn all the available features of the product, as well as information on its operation. The information that you get National Instruments NI 9229E will certainly help you make a decision on the purchase.
If you already are a holder of National Instruments NI 9229E, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime National Instruments NI 9229E.
However, one of the most important roles played by the user manual is to help in solving problems with National Instruments NI 9229E. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device National Instruments NI 9229E along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
