This document describes how to use the National Instruments 9225 and includes specifications and pin assignments for the NI 9225. The safety guidelines and specifications in this Note document are specific to the NI 9225. The other components in the system might not meet the same safety ratings and specifications.
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You must use the NI 9971 connector backshell kit to ensure that the terminals are not accessible. 4 | ni.com | NI 9225 Operating Instructions and Specifications Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Safety Guidelines for Hazardous Locations The NI 9225 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 nonhazardous locations only.
Figure 2. NI 9225 Terminal Assignments AI0+ AI0– AI1+ AI1– AI2+ AI2– 8 | ni.com | NI 9225 Operating Instructions and Specifications Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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You can connect ground-referenced or floating signal sources to the NI 9225. Connect the positive signal of the signal source to the AI+ terminal, and connect the negative signal of the signal source to the AI- terminal. If you make a ground-referenced connection...
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Refer to Figures 3 and 4 for illustrations of how to connect grounded and floating signal sources to the NI 9225. Figure 3. Connecting a Grounded Signal Source to the NI 9225 Signal Source – AI– NI 9225 Figure 4. Connecting a Floating Signal Source to the NI 9225...
Refer to Figure 1 for an illustration of the NI 9971 connector backshell. Figure 6. 2-Terminal Detachable Screw-Terminal Connector with Ferrule 12 | ni.com | NI 9225 Operating Instructions and Specifications Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
The small amount of variation in gain with respect to frequency is called the passband flatness. The digital filters of the NI 9225 adjust the frequency range of the passband to match the data rate. Therefore, the amount of gain or attenuation at a given frequency depends on the data rate.
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Figure 7. Typical Passband Response of the NI 9225 0.025 0.000 –0.025 –0.050 Frequency/Data Rate (Hz) 14 | ni.com | NI 9225 Operating Instructions and Specifications Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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16.667 kS/s, and so on down to 1.613 kS/s, depending on the value of n. When using an external timebase with a frequency other than 12.8 MHz, the NI 9225 has a different set of data rates. The cRIO-9151 R Series Expansion chassis does Note not support sharing timebases between modules.
Accuracy........±100 ppm max Data rate range (f ) using internal master timebase Minimum........1.613 kS/s Maximum ........50 kS/s 18 | ni.com | NI 9225 Operating Instructions and Specifications Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Gain drift ........±10 ppm/°C Offset drift ........±970 µV/°C Post calibration gain match (ch-to-ch, 20 kHz)......±0.25 dB max 20 | ni.com | NI 9225 Operating Instructions and Specifications Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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This category refers to local-level electrical distribution, such as that provided by a standard wall outlet, for example, 115 V for U.S. or 230 V for Europe. Do not connect the NI 9225 to signals or use Caution for measurements within Measurement Categories III or 24 | ni.com | NI 9225 Operating Instructions and Specifications...
NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers. 28 | ni.com | NI 9225 Operating Instructions and Specifications Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Council of the European Communities using the manufacturer’s declaration of conformity. This system affords the user protection for electromagnetic compatibility (EMC) and 30 | ni.com | NI 9225 Operating Instructions and Specifications Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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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/patents . You can find information about end-user license agreements (EULAs) and third-party legal notices in the readme file for your NI product.