SCXI-1125

Description

1. Parameter Specifications

• Power Supply: The SCXI – 1125 operates on a ±15V DC power supply. It has a power consumption of around 12W, which is relatively efficient for its functionality.
• Input Channels: It is equipped with 8 differential input channels. These channels are designed to handle a variety of analog signals, making it suitable for multi – signal measurement applications.
• Input Range: The input voltage range is adjustable. It can measure signals from ±100mV to ±10V, providing flexibility to accommodate different types of sensors and signal levels.
• Resolution: The analog – to – digital conversion resolution is 16 – bit. This high resolution ensures accurate measurement of analog signals, allowing for precise data acquisition.
• Sampling Rate: The maximum sampling rate is 200 kS/s (kilosamples per second). This fast sampling rate enables the capture of high – frequency signals and dynamic processes.
• Filtering: It has built – in anti – aliasing filters. These filters can be set to different cutoff frequencies (e.g., 10Hz, 100Hz, 1kHz, etc.) to prevent aliasing and ensure accurate signal representation.

2. Applications

• Industrial Automation: In manufacturing plants, the SCXI – 1125 is used for monitoring and controlling various industrial processes. For example, it can measure the temperature, pressure, and flow rate of fluids in a chemical production line. By accurately measuring these parameters, the system can adjust the process variables in real – time to ensure product quality and production efficiency.
• Test and Measurement: In research and development laboratories, it is used for testing and validating new products and technologies. For instance, in the automotive industry, it can measure the vibration, acceleration, and strain of vehicle components during testing. This data helps engineers optimize the design and performance of the components.
• Environmental Monitoring: In environmental monitoring stations, the SCXI – 1125 can measure parameters such as air quality (e.g., concentration of pollutants), water quality (e.g., pH value, dissolved oxygen), and meteorological data (e.g., temperature, humidity, wind speed). This information is crucial for environmental protection and resource management.

3. Weight and Dimensions

• Weight: The SCXI – 1125 weighs approximately 1.5 kg. Its relatively light weight makes it easy to install and handle during the setup and maintenance processes.
• Dimensions: It has dimensions of around 220 mm in length, 140 mm in width, and 60 mm in height. These compact dimensions allow it to be easily installed in standard equipment racks or test setups.

4. Features

• High – Density Inputs: With 8 differential input channels in a single module, the SCXI – 1125 provides a high – density solution for multi – channel analog signal measurement.
• Flexible Input Range: The adjustable input range allows it to be used with a wide variety of sensors, eliminating the need for external signal conditioning in many cases.
• Integrated Filtering: The built – in anti – aliasing filters simplify the signal processing chain and ensure accurate measurement of high – frequency signals.
• Easy Integration: It is designed to be easily integrated with other National Instruments data acquisition systems, such as the SCXI chassis and data acquisition cards. This seamless integration enables users to build comprehensive data acquisition and control systems.

5. Stability and Reliability

• Robust Construction: The SCXI – 1125 is built with a durable housing that can withstand harsh industrial and laboratory environments, including dust, moisture, and mechanical vibrations.
• Quality Components: It uses high – quality electronic components that are selected for their reliability and long – term performance. This helps to ensure stable operation over an extended period.
• Calibration: The module can be calibrated to maintain measurement accuracy over time. Regular calibration ensures that the measured data remains reliable and consistent.

6. Real – World Examples

• Aerospace Testing: In an aerospace testing facility, the SCXI – 1125 is used to measure the strain and vibration of aircraft wings during wind tunnel tests. The 8 differential input channels allow for simultaneous measurement of multiple points on the wing. The high – resolution measurement and fast sampling rate enable engineers to capture the dynamic behavior of the wing under different wind conditions. The data collected by the SCXI – 1125 is used to validate the structural design of the wing and improve its performance.
• Power Plant Monitoring: In a power plant, the SCXI – 1125 is used to monitor the temperature and pressure of steam in the boiler and turbine systems. The adjustable input range allows it to measure the wide range of signal levels generated by the temperature and pressure sensors. The integrated anti – aliasing filters ensure accurate measurement of the high – frequency fluctuations in the steam parameters. By continuously monitoring these parameters, the power plant operators can detect potential problems early and take preventive measures to ensure the safe and efficient operation of the power plant.