NI PCI-4474 PCI Bus 4-Channel Dynamic Signal Acquisition DSA Board

Technical Specifications

Model:PCI-4474

Brand:NI

Part No:778729-01

Product type:PCI Bus Dynamic Signal Acquisition(DSA) Board

ADC:24-bit delta-sigma ADC

Analog Input:4 simultaneous sampling channels

Max sampling rate:102.4kS/s

Dynamic range:110dB

Input range:±10V,software configurable AC/DC coupling

Alias-free bandwidth:45kHz

Function:IEPE sensor excitation,built-in auto anti-aliasing filter,RTSI multi-board synchronization,hardware trigger

Overvoltage protection:±42.4V

Bus:32-bit PCI

Dimension:175mm107mm20mm

Weight:0.20kg

Operating temperature:0℃ ~ +50℃

Storage temperature:-20℃ ~ +70℃

Relative humidity:10~90% non-condensing

Certification:CE

System compatibility

PCI-4474 belongs to NI DSA dynamic signal acquisition platform.It works with standard PCI industrial PC,supported by NI-DAQmx driver and LabVIEW,widely used for multi-channel acoustic noise,vibration,NVH and audio frequency measurement in legacy test systems.It is spare part for legacy test equipment overhaul.

Function

PCI-4474 is 4-channel high precision DSA board for sound and vibration measurement.It provides IEPE power supply for accelerometers and microphones,with built-in automatic anti-aliasing filter.Four channels sample synchronously for FFT spectrum analysis.RTSI bus supports multi-card synchronization to expand measurement channels for multi-point vibration test systems.

Installation

Insert PCI-4474 into computer PCI slot and fasten bracket.Connect sensors to SMB connectors.Install NI-DAQmx driver.Take ESD protection before installation.

Interface

‑5×SMB analog input & trigger connectors

‑PCI gold finger edge connector

‑Board status indicator

Feature

PCI-4474 classic NI 4-channel sound & vibration DSA board.Typical faults:SMB connector oxidation,IEPE excitation circuit failure,ADC measurement drift.Inspect sensor wiring and spectrum test before replacement.

Diagnostic

Fault phenomenon:no signal input,high background noise,channel inconsistency.Check SMB cable,transducer,PCI slot contact,NI-DAQmx driver and IEPE/coupling configuration.

Product Brief

PCI-4474 is NI PCI bus 24-bit 4AI DSA board with max 102.4kS/s sampling rate,supporting IEPE and RTSI synchronization,for multi-channel acoustic,shock vibration and NVH testing and legacy dynamic test equipment renovation.Mainly used for maintenance and replacement of old test equipment.ESD protection must be followed during handling.