National Instrument SCXI-1520 Signal conditioning module
Specific Parameters
Brand National Instrument (NI)
Product Series SCXI Series Bridge Sensor Signal Conditioning Modules
Product Type High-Precision Bridge/Strain Signal Conditioning Module
Model SCXI-1520
Number of Input Channels 8 differential bridge input channels
Supported Sensor Types Strain gauges (120Ω, 350Ω, 1kΩ), full-bridge/half-bridge/quarter-bridge sensors, pressure sensors, load cells
Excitation Voltage 5V DC, 10V DC programmable; maximum excitation current 200mA (per channel)
Gain Range 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000 (software programmable)
Resolution Equivalent resolution ≥17 bits when used with 16-bit DAQ card; Equivalent resolution ≥21 bits when used with 24-bit DAQ card
Input Impedance Bridge excitation terminal: ≥100kΩ; Signal input terminal: ≥10GΩ
Filter Characteristics Low-pass filter, cutoff frequency 0.1Hz-1kHz programmable, filter order 4th
Isolation Voltage 2500V AC isolation between channels and between channel and backplane (1 minute)
Nonlinear Error ≤±0.01% FS
Operating Voltage Powered by SCXI chassis (±15V DC, +5V DC)
Operating Temperature Range 0℃ – 55℃
Storage Temperature Range -20℃ – 70℃
Relative Humidity 10% – 90% Non-condensing
Dimensions 132mm×160mm×37mm (L×W×H)
Weight Approximately 360g
Certification CE, UL, CSA, FCC Part 15 Class A, IEC 61010-1
Compatible Devices Compatible with SCXI-1000/1001/1002/1003/1006 chassis, compatible with multiple NI DAQ cards such as PCIe-6361, USB-6259
Diagnostic Functions Power failure diagnosis, Channel open/short circuit diagnosis, Excitation voltage abnormality diagnosis, Filter failure diagnosis
Product Performance
8-channel differential bridge input integrated design, fully compatible with various bridge sensors such as full-bridge, half-bridge and quarter-bridge, can meet the conditioning needs of multi-channel bridge signals at the same time, with high integration
Provides 5V and 10V programmable excitation voltage, combined with large current output capacity, can accurately match the power supply needs of different specifications of bridge sensors, no need for additional external excitation power supply
Wide-range software programmable gain, can accurately amplify weak signals output by bridge sensors, and achieve high-precision signal acquisition with high-resolution DAQ cards to meet precision test and measurement needs
Built-in 4th-order programmable low-pass filter, which can flexibly configure the cutoff frequency according to the signal frequency, effectively filter out high-frequency interference, and ensure the accuracy and integrity of signal acquisition
High-voltage isolation design combined with enhanced anti-electromagnetic interference circuit can effectively suppress common-mode interference and electromagnetic radiation interference in industrial sites, protect backend DAQ equipment safety, and ensure stable signal transmission
Nonlinear error as low as ±0.01% FS, high signal conditioning accuracy, can maximize the retention of the real characteristics of the original signal, and improve the reliability of subsequent data acquisition and analysis
Fully compatible with SCXI bus specification and NI-DAQmx driver software, can be seamlessly integrated with multiple SCXI chassis and DAQ cards, and compatible with LabVIEW, LabWindows/CVI development environments, with extremely strong system compatibility
Equipped with full-link fault diagnosis function, real-time monitoring of module operation status, channel connection and excitation voltage, fault information can be synchronized to the acquisition system, facilitating quick positioning and troubleshooting
Industrial-grade stable packaging design, can operate continuously for a long time in the operating temperature range of 0℃-55℃, adapting to the dual needs of laboratory precision testing and complex industrial on-site environments
There are no reviews yet.