NI 9234

The NI 9234 is a four-channel C Series sound and vibration input module with simultaneous 24-bit acquisition, a ±5 V input range and 51.2 kS/s/channel sampling using its internal timebase.

ManufacturerNational Instruments

ModelNI 9234

Part Number779680-01

Product TypeC Series Sound and Vibration Input Module

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Inputs4 simultaneously sampled analog channels

Resolution24-bit delta-sigma ADC

Input range±5 V

SamplingUp to 51.2 kS/s/channel with internal timebase

Signal conditioningSoftware-selectable AC/DC coupling and IEPE excitation

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Overview

Product overview

Key product information and technical features.

The NI 9234 measures IEPE and non-IEPE sensor signals, including accelerometers, tachometers and proximity probes. Its channels include anti-aliasing filters that automatically adjust to the sampling rate.

As a C Series module, it fits supported CompactDAQ and CompactRIO configurations. Check the selected chassis, software versions and acquisition mode against NI's compatibility documentation.

Simultaneous sampling across all four input channels.
Software-selectable AC or DC input coupling.
IEPE excitation can be enabled or disabled in software.
Supports IEEE 1451.4 TEDS Class I sensors.

Verified specifications

Technical data

Verified product specifications.

Analog input channels	4 channels
ADC resolution	24 bits
Sampling mode	Simultaneous
Input range	±5 V
Data rate range, internal timebase	1.652–51.2 kS/s/channel
Data rate range, external timebase	0.391–52.734 kS/s/channel
Input coupling	AC/DC, software-selectable
IEPE excitation current	2.0 minimum; 2.1 typical mA
AC coupling cutoff, −3 dB	0.5 Hz
Operating temperature	−40 to 70 °C
Front connections, 779680-01	4 BNC connectors