Part Code Definition

SCXI = Signal Conditioning Extension for Instrumentation series platform

1100 = economical 32-channel multiplexed analog input signal conditioning module

Technical Specifications

Input channel：32 differential input, support single-ended wiring conversion via terminal block

Input range：DC coupled, full scale ±10V max input

Programmable gain：×1/×2/×5/×10/×20/×50/×100/×200/×500/×1000 software selectable

Input impedance：100MΩ per channel; CMRR 120dB @50Hz

Filter option：jumper configurable 4Hz low-pass anti-aliasing filter, optional higher frequency filter via terminal wiring

Sampling rate：Max 166kS/s full bandwidth;6.6kS/s@10kHz filter;3S/s@4Hz filter

Operating environment：0℃~+50℃ working, -40℃~+70℃ storage;RH5%~90% non-condensing

Dimension：173×86×203mm,net weight≈1.36kg

Certification：CE,UL,C/US safety certified

Interface & Communication Configuration

Front connector：96-pin DIN-C male socket, match SCXI-1300/SCXI-1303/SCXI-1308 series screw terminal blocks for field sensor wiring; terminal integrates cold-junction compensation CJC temperature sensor for thermocouple measurement

Rear connector：50-pin ribbon cable port, connect SCXI chassis backplane bus, cascade to PCI/PCIe DAQ acquisition board via chassis rear bus line

Bus mode：All 32 channels time-division multiplex to single DAQ input channel via SCXI backplane analog bus

Core Functions

Multiplex 32 independent differential sensor signals into single PGA circuit, realize high-density channel expansion for limited-channel DAQ card

Software programmable gain amplifying adapt weak mV thermocouple/strain gauge signal and standard volt sensor signal

Hardware jumper low-pass filtering suppress industrial power frequency interference, improve weak signal measuring stability

Built-in CJC cold-junction compensation circuit cooperated with matched terminal block to finish thermocouple temperature acquisition without extra compensation module

Compatible with NI-DAQmx,LabVIEW,LabWindows/CVI software for channel parameter configuration, real-time data reading and logging

Application Scenarios

Multi-point temperature monitoring of production line, lab environmental test bench multi-sensor acquisition, old SCXI DAQ system spare replacement, mechanical fatigue test multi-channel strain signal collection, petrochemical site field process analog signal centralized conditioning.

Operation & Maintenance Notes

Install into standard SCXI-1000(4-slot)/SCXI-1001(12-slot) chassis slot, power off chassis before plug/unplug module to avoid backplane damage; separate weak signal twisted wire and high-power AC cable to reduce EMI; configure gain and filter mode via LabVIEW before field commissioning; regular check terminal screw tightness preventing loose contact drift; CJC sensor wiring strictly follow terminal definition for accurate thermocouple reading.