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Summary of Contents for National Instruments NI 9225
- Page 1 OPERATING INSTRUCTIONS AND SPECIFICATIONS NI 9225 3-Channel, 300 V , 24-Bit Simultaneous, Channel-to-Channel Isolated Analog Input Module Français Deutsch ni.com/manuals...
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Page 2: Related Information
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. -
Page 3: Safety Guidelines For Hazardous Voltages
If hazardous voltages are connected to the module, take the following precautions. A hazardous voltage is a voltage greater than 42.4 V or 60 VDC to earth ground. NI 9225 Operating Instructions and Specifications | © National Instruments | 3... - Page 4 /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 the terminals are not accessible. 4 | ni.com | NI 9225 Operating Instructions and Specifications...
- Page 5 Figure 1 shows the NI 9971 connector backshell. Figure 1. NI 9971 Connector Backshell NI 9225 Operating Instructions and Specifications | © National Instruments | 5...
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Page 6: Safety Guidelines For Hazardous Locations
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. -
Page 7: Special Conditions For Marine Applications
Power supply and module cables must be separated on opposite sides of the enclosure and must enter and exit through opposing enclosure walls. NI 9225 Operating Instructions and Specifications | © National Instruments | 7... -
Page 8: Connecting The Ni 9225
The NI 9225 has three 2-terminal detachable screw-terminal connectors that provide connections for three simultaneously sampled, isolated analog input channels. Figure 2. NI 9225 Terminal Assignments AI0+ AI0– AI1+ AI1– AI2+ AI2– 8 | ni.com | NI 9225 Operating Instructions and Specifications... - Page 9 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...
- Page 10 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...
- Page 11 Figure 5 for an illustration of the circuitry for one channel of the NI 9225. Figure 5. Input Circuitry for One Channel of the NI 9225 Overvoltage Protection AI– Amplifier Prefilter NI 9225 NI 9225 Operating Instructions and Specifications | © National Instruments | 11...
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Page 12: Wiring For High-Vibration Applications
Refer to Figure 6 for an illustration of using ferrules. 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... -
Page 13: Understanding Ni 9225 Filtering
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. - Page 14 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...
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Page 15: Alias-Free Bandwidth
12.8 MHz, but the module also can accept an external master timebase or export its own master timebase. To synchronize the data rate of an NI 9225 with other modules that use master timebases to control sampling, all of the modules must... - Page 16 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.
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Page 17: Sleep Mode
Refer to the Specifications section for more information about power consumption and thermal dissipation. NI 9225 Operating Instructions and Specifications | © National Instruments | 17... -
Page 18: Specifications
Sampling mode ......... Simultaneous Internal master timebase (f Frequency ........12.8 MHz 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... - Page 19 The data rate must remain within the appropriate data rate range. Refer to the Understanding NI 9225 Data Rates section for more information. Refer to the Safety Guidelines section for more information about safe operating voltages. NI 9225 Operating Instructions and Specifications | © National Instruments | 19...
- Page 20 Range equals 425 V. Input noise ........2 mV Stability 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...
- Page 21 Alias-free bandwidth ......0.453 · f -3 dB bandwidth (f = 50 kS/s)..24.56 kHz CMRR (f = 60 Hz)......104 dB SFDR (1 kHz, -60 dBFS)....128 dBFS NI 9225 Operating Instructions and Specifications | © National Instruments | 21...
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Page 22: Power Requirements
Power consumption from chassis Active mode ....... 495 mW max Sleep mode ......... 25 µW max Thermal dissipation (at 70 °C) Active mode ....... 760 mW max Sleep mode ......... 265 mW max 22 | ni.com | NI 9225 Operating Instructions and Specifications... -
Page 23: Physical Characteristics
Ferrules ..........0.25 mm to 0.5 mm Weight..........141 g (5.0 oz) Safety Maximum Voltage Connect only voltages that are within the following limits. AI+ to AI- ......... 300 V NI 9225 Operating Instructions and Specifications | © National Instruments | 23... - Page 24 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...
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Page 25: Safety Standards
Class I, Zone 2, AEx nA IIC T4 Canada (C-UL) ......... Class I, Division 2, Groups A, B, C, D, T4; Class I, Zone 2, Ex nA IIC T4 NI 9225 Operating Instructions and Specifications | © National Instruments | 25... - Page 26 Ingress protection......IP 40 Operating humidity (IEC 60068-2-56)......10 to 90% RH, noncondensing Storage humidity (IEC 60068-2-56)......5 to 95% RH, noncondensing Maximum altitude......2,000 m Pollution Degree (IEC 60664) ..2 26 | ni.com | NI 9225 Operating Instructions and Specifications...
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Page 27: Shock And Vibration
• EN 61326 EMC requirements; Industrial Immunity • EN 55011 Emissions; Group 1, Class A • CE, C-Tick, ICES, and FCC Part 15 Emissions; Class A NI 9225 Operating Instructions and Specifications | © National Instruments | 27... -
Page 28: Environmental Management
NI is committed to designing 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. 28 | ni.com | NI 9225 Operating Instructions and Specifications... -
Page 29: Waste Electrical And Electronic Equipment (Weee)
WEEE Directive 2002/96/EC on Waste and Electronic Equipment, visit ni.com/environment/ weee National Instruments (RoHS) National Instruments RoHS (For information ni.com/environment/rohs_china about China RoHS compliance, go to ni.com/ environment/rohs_china NI 9225 Operating Instructions and Specifications | © National Instruments | 29... -
Page 30: Worldwide Support And Services
A Declaration of Conformity (DoC) is our claim of compliance with the 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... - Page 31 United States, visit the Worldwide Offices section of to access the branch office ni.com/niglobal websites, which provide up-to-date contact information, support phone numbers, email addresses, and current events. NI 9225 Operating Instructions and Specifications | © National Instruments | 31...
- Page 32 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.
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