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Home > Electrical & Electronics > Electrical Control System > NI SCXI-1303 Terminal Block

NI SCXI-1303 Terminal Block

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

Other, Global universal model

Condition:

Other, Global universal model

Task:

Other, Global universal model

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Guizhou Yuanmiao Automation Equipment Co., Ltd.

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Port of Shipment:

China

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Delivery time depends on order quantity.

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Material Other, Global universal model

Condition Other, Global universal model

Task Other, Global universal model

Mathematical Model Other, Global universal model

Signal Other, Global universal model

Customized Non-Customized

Structure Other, Global universal model

Operating Temperature 0°C to 55°C

Storage Temperature -20°C to 70°C

Humidity Range 10% to 90%

NI SCXI-1303

The NI SCXI-1303 is a 32-channel isothermal terminal block primarily used with specific SCXI modules for high-precision thermocouple temperature measurement.

Functional Features

High-Precision Cold Junction Compensation
Equipped with a high-precision thermistor cold junction temperature sensor, achieving an accuracy of 0.5°C between 15 to 35°C and a repeatability of 0.9°C between 0 to 15°C and 35 to 55°C. It accurately measures cold junction temperature, providing precise compensation signals for thermocouple measurements to ensure high-precision temperature readings.
Isothermal Structure Design
Adopts an isothermal copper plane to minimize temperature gradients between screw terminals during thermocouple measurements, reducing measurement errors caused by thermal gradients and improving measurement accuracy and reliability.
Open Thermocouple Detection
Features an open thermocouple detection circuit implemented via pull-up resistors and bias resistors. Each channel has a pull-up resistor connected between CH+ and +5V, and a bias resistor between CH- and chassis ground. It determines thermocouple open circuits by detecting whether SCXI module channels are saturated, facilitating timely fault detection in the measurement system.
Flexible Signal Connectivity
Provides 78 screw terminals, including 32 pairs connected to 32 differential inputs of the SCXI module, 1 pair connected to the module's chassis ground pins, and 3 terminals connected to SCXI module outputs, AREF pins, and SCXI bus protection. This enables convenient connection to various signal sources and devices, supporting multiple connection methods and configurations.

Technical Specifications

Dimensions
No explicit standard dimensions. As a terminal block used with other modules, dimensions typically depend on the installation location and space.
Weight
No explicit weight data, but presumed to be lightweight for easy installation in various devices.
Operating Temperature Range
Generally 0°C to 55°C, ensuring normal operation and measurement accuracy within this range.
Storage Temperature Range
Typically -20°C to 70°C, allowing long-term storage without damage in a non-operational state.
Humidity Range
Non-condensing humidity from 10% to 90%, adapting to moderate humidity environments and avoiding performance degradation due to excessive or insufficient humidity.
Cold Junction Sensor
Type: Thermistor. Voltage output ranges from 1.91 to 0.58V within 0 to 55°C.

Typical Application Scenarios

Industrial Process Temperature Monitoring
Used in production processes of chemical, steel, electronics manufacturing, and other industries to monitor temperatures of key equipment such as reactors, furnaces, and production lines. For example, in blast furnace temperature monitoring at steel plants, connecting multiple thermocouples leverages the SCXI-1303's high-precision measurement and cold junction compensation to obtain real-time, accurate temperature data from different furnace locations, ensuring production process control and equipment safety.
Laboratory High-Precision Temperature Measurement
Applied in scientific research laboratories for experiments requiring high-precision temperature measurement, such as material thermal property research and chemical reaction kinetics experiments. For instance, when studying the thermal expansion coefficient of new materials, connecting high-precision thermocouples via the SCXI-1303 enables precise measurement of material changes at different temperatures, providing accurate temperature data for material performance research.
Temperature Monitoring in Energy Sectors
Monitors temperatures of equipment and systems during energy production and conversion in power, solar, wind, and other energy fields. For example, in wind turbine generator sets, monitoring temperatures of key components like gearboxes and generators helps detect potential overheating faults promptly, ensuring stable operation and service life of the units.
Environmental Simulation and Testing
Used in environmental simulation laboratories, climatic chambers, and other equipment for precise control and monitoring of ambient temperature. For example, in environmental adaptability testing of automotive components, the SCXI-1303 monitors temperature changes in climatic chambers to ensure test environments meet standards, providing accurate temperature data support for component reliability evaluation.