National Instruments NI 9234 Getting Started Manual
Accelerometer/microphone (iepe), 4-ch
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Also See for NI 9234:
- Operating instructions manual (37 pages) ,
- Getting started (9 pages) ,
- Calibration procedure (17 pages)
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Summary of Contents for National Instruments NI 9234
- Page 1 GETTING STARTED GUIDE NI 9234 4 AI, ±5 V, 24 Bit, 51.2 kS/s/ch Simultaneous, AC/DC Coupling, IEPE AC Coupling...
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Page 2: Safety Guidelines
This document explains how to connect to the NI 9234. Before you begin, complete the software and Note hardware installation procedures in your chassis documentation. The guidelines in this document are specific to Note the NI 9234. The other components in the system might not meet the same safety ratings. -
Page 3: Safety Voltages
Do not connect the NI 9234 to signals or use Caution for measurements within Measurement Categories II, III, or IV. NI 9234 Getting Started Guide | © National Instruments | 3... -
Page 4: Safety Guidelines For Hazardous Locations
Safety Guidelines for Hazardous Locations The NI 9234 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 5 Zone 2 hazardous locations, in ambient temperatures of -40 °C ≤ Ta ≤ 70 °C. If you are using the NI 9234 in Gas Group IIC hazardous locations, you must use the device in an NI chassis that has been evaluated as Ex nC IIC T4, Ex IIC T4, Ex nA IIC T4, or Ex nL IIC T4 equipment.
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Page 6: Electromagnetic Compatibility Guidelines
To minimize interference with radio and television reception and prevent unacceptable performance degradation, install and use this 6 | ni.com | NI 9234 Getting Started Guide... -
Page 7: Special Conditions For Marine Applications
In addition, take precautions when designing, selecting, and installing measurement probes and cables to ensure that the desired EMC performance is attained. NI 9234 Getting Started Guide | © National Instruments | 7... -
Page 8: Preparing The Environment
Preparing the Environment Ensure that the environment in which you are using the NI 9234 meets the following specifications. Operating temperature -40 °C to 70 °C (IEC 60068-2-1, IEC 60068-2-2) Operating humidity 10% RH to 90% RH, (IEC 60068-2-78) noncondensing... -
Page 9: Connecting The Ni 9234
Connecting the NI 9234 The NI 9234 provides connections to four simultaneously sampled analog input channels. Figure 1. NI 9234 Pinout AI0+ AI0- AI1+ AI1- AI2+ AI2- AI3+ AI3- NI 9234 Getting Started Guide | © National Instruments | 9... -
Page 10: Signal Descriptions
Signal Descriptions Table 1. Signal Descriptions Signal Signal Description Provides DC excitation (when enabled) and positive input signal connection Provides excitation return path and signal ground reference 10 | ni.com | NI 9234 Getting Started Guide... -
Page 11: Connecting Floating Differential Signals
Connecting Floating Differential Signals You can connect floating differential signals to the NI 9234. Figure 2. Connecting Floating Differential Signals to the NI 9234 Signal Source – NI 9234 NI 9234 Getting Started Guide | © National Instruments | 11... -
Page 12: Connecting Grounded Differential Signals
Mode Voltage Make sure the voltage on the AI- shell is in the common-mode range to ensure proper operation of the NI 9234. The AI- shell is protected against accidental contact with overvoltages within the overvoltage protection range. Related Information... -
Page 13: Common-Mode Bias Current
Common-Mode Bias Current The NI 9234 uses common-mode bias current to bias the current- limiting diodes when IEPE current is turned off. When the NI 9234 is using grounded signal sources, this current causes an error that is dependent on the AI- lead impedance. This error is approximately 50 ppm of range and 15 ppm of reading per ohm of AI- impedance. -
Page 14: Iepe Excitation Current
Current NI 9234 IEPE Excitation Current The NI 9234 can also provide an IEPE excitation current for each channel to measure ground-referenced or floating IEPE sensors. Typical IEPE sensors have a case that is electrically isolated from the IEPE electronics, so connecting the sensor to the NI 9234 results in a floating connection even though the case of the sensor is grounded. -
Page 15: Overvoltage Protection
Overvoltage Protection The NI 9234 provides overvoltage protection for each channel. Refer to the device datasheet on ni.com/manuals Note for more information about overvoltage protection. NI 9234 Getting Started Guide | © National Instruments | 15... -
Page 16: Where To Go Next
NI 9234 Datasheet NI 9234 Datasheet NI-RIO Help NI-DAQmx Help LabVIEW FPGA Help LabVIEW Help RELATED INFORMATION C Series Documentation Services & Resources ni.com/services ni.com/info cseriesdoc Located at ni.com/manuals Installs with the software 16 | ni.com | NI 9234 Getting Started Guide... -
Page 17: Worldwide Support And Services
You can obtain the DoC for your product by visiting ni.com/certification. If your product supports calibration, you can obtain the calibration certificate for your product at ni.com/calibration. NI 9234 Getting Started Guide | © National Instruments | 17... - Page 18 U.S. Government Customers: The data contained in this manual was developed at private expense and is subject to the applicable limited rights and restricted data rights as set forth in FAR 52.227-14, DFAR 252.227-7014, and DFAR 252.227-7015. © 2008—2015 National Instruments. All rights reserved. 374238H-01 Oct15...
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