Description

NI  SCXI-1320  universal front-end terminal module

Functional characteristics:
High-voltage connection: It is a high-voltage terminal block with shielded screw terminals that can be connected to the input connectors of various modules such as SCXI-1121, SCXI-1120D, SCXI-1126, SCXI-1120 or SCXI-1125.
Rich terminals: Equipped with 18 screw terminals for convenient connection. Among them, one pair of screw terminals can be connected to the ground of the SCXI module chassis. When used in conjunction with SCXI-1120/D, SCXI-1125 or SCXI-1126, the other eight pairs of screw terminals are used to connect signals to the eight inputs of the module. When used in conjunction with SCXI-1121, four pairs of screw terminals are used for the input of four modules, and the other four pairs are used for the output of module excitation.
Cold junction compensation: The on-board temperature sensor can use thermocouples for cold junction compensation, which helps to improve the accuracy of temperature measurement. However, NI suggests keeping the SCXI chassis away from extreme temperature difference environments to ensure precise cold end compensation.

Application scenarios
Experimental teaching It can be combined with hardware such as ELVIS, IMAQ-1422, PXI-1000B and LabVIEW software to build a distributed network virtual laboratory system based on the Internet, realize the remote sharing of experimental data and experimental instruments, and provide a professional experimental teaching platform for college students. It is helpful to solve the problem of tight teaching resources caused by the expansion of higher education enrollment.
Temperature measurement: Suitable for temperature measurement applications with a large number of channels. The module is equipped with an on-board temperature sensor and can use a thermocouple for cold junction compensation, which can improve the accuracy of temperature measurement. It is often used in situations where precise temperature measurement is required, such as temperature testing in scientific research laboratories and temperature monitoring in industrial production.

Voltage signal acquisition: As a universal terminal module, it can be connected to various modules such as SCXI-1120 and SCXI-1121 for connecting and disconnecting voltage signals, facilitating the access of external voltage signals to the data acquisition system to achieve the acquisition and processing of voltage signals. It is commonly used in scenarios such as electrical parameter testing and circuit characteristic research.
Industrial automation measurement and control: On industrial automation production lines, it can be used to connect various sensors and actuators, input the signals output by the sensors into the control system, and simultaneously transmit the control signals to the actuators. When the on-site equipment is in a hazardous area, in combination with relevant explosion-proof measures, it can also be applied to industrial environments with explosion-proof requirements, such as the chemical and petroleum industries.

Scientific research data acquisition: In scientific research projects, it is often necessary to collect various analog signals. The SCXI-1320 can be combined with other SCXI modules to build a flexible data acquisition system, which is used to collect various signals in experiments in fields such as physics, chemistry, and biology, such as pressure, strain, temperature, and voltage signals, providing data support for scientific research experiments.