NI-9234 National Instruments Input Module

NI-9234 National Instruments Product Introduction and Technical Specifications
Brand: National Instruments (NI, Emerson)
Model: NI-9234, part numbers 779680-01 / 779680-03
Full Product Name: 4-Channel, 51.2 kS/s/channel, ±5 V C Series Sound and Vibration Input Module
Country of Origin: United States
HS Code Reference: 85437090 (For customs reference only; confirm classification with local customs authority before declaration)
Overall dimension: 96.5 mm × 25.5 mm × 80 mm
Net weight: Approximately 155 g

Electrical Specifications
Module bus supply: Powered via CompactDAQ / CompactRIO chassis backplane
Analog input voltage range: ±5 V
IEPE constant current excitation: 2 mA per channel, software enabled
Maximum sampling rate: 51.2 kS/s per channel, simultaneous sampling
ADC resolution: 24-bit
Dynamic range: 102 dB
Input coupling: Software selectable AC or DC
Built-in anti-aliasing filters with automatic cutoff frequency adjustment
Power consumption: Typical 3.2 W
Operating temperature range: -20 °C to +55 °C
Storage temperature range: -40 °C to +85 °C
Main Characteristics
Four independent synchronous differential analog input channels for multi-point vibration testing;
Built-in configurable 2 mA IEPE sensor excitation power supply;
Supports TEDS sensor automatic identification and parameter reading;
Channel-wise configurable AC/DC signal coupling for different measurement objects;
Automatically adjusted anti-aliasing filters to prevent signal aliasing;
High-precision 24-bit analog-to-digital conversion with excellent noise performance;
BNC front panel connectors for convenient sensor wiring;
Compatible with CompactDAQ USB, Ethernet and wireless chassis as well as CompactRIO real-time controllers;
Supports hot swapping when matched with qualified chassis;
Comprehensive built-in self-test functions for hardware fault verification;
Compliant with industrial EMC standards for laboratory and on-site measurement environments;
Widely applied in rotating machinery condition monitoring, automotive NVH testing, structural modal analysis, acoustic testing and industrial vibration inspection projects.