NI SCXI-1300

Product Name 32-Channel General-Purpose Terminal Block

Product Introduction The SCXI-1300 is a screw-type terminal block designed for 32-channel SCXI analog input modules. It provides reliable signal connection for differential input signals and integrates an onboard cold-junction temperature sensor to support thermocouple temperature measurement systems.

Category:
Description

Functional Features

  • 72 screw terminals for secure signal wiring
  • Built-in cold-junction temperature sensor for thermocouple compensation
  • 32 pairs of screw terminals matching 32 differential inputs of SCXI modules
  • 2 screw terminals for functional chassis ground connection
  • Solder lug for safety chassis grounding
  • Additional terminals for module output, AOREF and SCXIbus GUARD connections

Technical Specifications

  • Brand: National Instruments
  • Model: SCXI-1300
  • Product Type: Terminal Block
  • Compatible Modules: SCXI-1100, SCXI-1102/B/C, SCXI-1104/C, SCXI-1181, SCXI-1181K
  • Terminal Type: Screw terminal
  • Temperature Sensor Type: IC sensor for cold-junction compensation
  • Mounting: Front-mounting on SCXI modules
  • Wire Gauge Support: 26–16 AWG

Application Scenarios

  • Multi-channel data acquisition systems
  • Thermocouple temperature measurement setups
  • Industrial process monitoring and control
  • Laboratory test and measurement systems
  • SCXI chassis signal conditioning systems

Working Principle The terminal block acts as an interface between field signals and SCXI modules. It routes differential input signals to the module channels, and the integrated temperature sensor provides cold-junction reference data for thermocouple signal conversion, ensuring accurate temperature measurement.

Installation Requirements

  • Mount directly to the front panel of compatible SCXI modules
  • Ensure firm screw connections to avoid signal loss or poor contact
  • Implement proper grounding via the dedicated chassis ground terminals
  • Route signal wires away from high-voltage power lines to reduce interference

Usage Notes

  • Tighten terminals to specified torque to ensure reliable connection
  • Use with compatible SCXI modules only
  • Perform periodic inspection of terminal connections in harsh industrial environments
  • Follow ESD protection procedures during installation and maintenance
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