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National Instruments · SCXI

SCXI-1303

The SCXI-1303 provides 32-channel thermocouple connections with thermistor cold-junction sensing.

ManufacturerNational Instruments

ModelSCXI-1303

Product TypeIsothermal terminal block

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Channels32 differential

Connections78 screw terminals

Cold-junction sensorThermistor

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Overview

Product overview

Key product information and technical features.

This shielded terminal block attaches to a supported SCXI module, rather than operating as a standalone acquisition device.

Isothermal copper plane minimizes terminal temperature gradients.
Pullup and bias networks support open-thermocouple detection.
Strain-relief bar secures signal wiring.

Verified specifications

Technical data

Verified product specifications.

Differential channels	32
Screw terminals	78
Cold-junction accuracy, 15–35 °C	±0.5 °C

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Compatibility

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National Instruments

Manufacturer

SCXI

Platform

SCXI-1303

Terminal block

Compatibility

Supports SCXI-1100 and SCXI-1102/B/C modules; resistor selection depends on module and signal grounding.

Verify resistor configuration before wiring; ground-referenced signals can damage circuitry with 10 Ω bias networks installed.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

SCXI-1303 Installation Guide and SpecificationsInstallation Guide · download.ni.com

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NI: Cold-Junction Compensation with SCXI ModulesTechnical resource

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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Which modules are supported?

SCXI-1100, SCXI-1102, SCXI-1102B and SCXI-1102C.

Does the accuracy specification cover the entire measurement system?

No. The stated cold-junction accuracy includes sensor accuracy and sensor-to-terminal temperature differences, not total thermocouple-system error.