SCXI-1120D National Instruments 8-Channel Differential Isolation Amplifier Module

Description

SCXI-1120D National Instruments 8-Channel Differential Isolation Amplifier Module

Product Dimensions：

Product Description

The NI SCXI-1120D is a legacy 8-channel isolated analog input module for the NI SCXI (Signal Conditioning eXtensions for Instrumentation) platform. Designed for the SCXI chassis, it provides signal conditioning and isolation for various low-level and high-level voltage signals. The “D” in its name indicates that it includes a fixed pre-stage gain, making it suitable for a specific range of measurements.

Product Specifications

The SCXI-1120D is a modular device, so its key specifications relate to its measurement capabilities.

• Channels: 8 isolated analog input channels.
• Isolation: It provides isolation between channels and to the earth, with a working isolation of 250 Vrms.
• Input Ranges: The module is designed to handle voltage signals, including millivolt and standard volt ranges.
• Filtering: It includes a fixed-frequency lowpass filter (22.5 kHz) on each channel to eliminate high-frequency noise.
• Connector: It connects to a compatible SCXI chassis (like the SCXI-1000) and uses a terminal block for field wiring.
• Gain: The SCXI-1120D has a fixed pre-stage gain of 0.5, which is an important consideration when calculating the total system gain.

Product Advantages

• Signal Isolation: The key advantage of the SCXI-1120D is its high-voltage isolation. This protects your DAQ device and computer from transient voltages or ground loops, ensuring safe and accurate measurements in electrically noisy environments.
• Noise Reduction: The integrated lowpass filter on each channel helps to remove unwanted high-frequency noise from your signals, which improves the quality and reliability of your measurements.
• Modularity: As part of the SCXI platform, it offers a flexible and scalable solution. You can combine it with other SCXI modules in a single chassis to create a custom data acquisition system tailored to your specific application.
• Compatibility: It seamlessly integrates with NI’s data acquisition devices and software, like LabVIEW, which provides a user-friendly environment for configuring and controlling the module.

Product Applications

The NI SCXI-1120D is well-suited for applications where isolated, low-frequency voltage measurements are required.

• Industrial Automation: It can be used in industrial environments for monitoring sensors and other devices where electrical noise and ground loops are a concern.
• High-Voltage Measurements: The module’s isolation capabilities make it suitable for measuring signals in high-voltage systems while protecting the user and equipment.
• Research and Development: It’s a useful tool for a wide range of scientific and engineering experiments that require isolated measurements of voltage signals.

Precautions

To ensure the safety and proper function of the SCXI-1120D, follow these important guidelines:

• Indoor Use Only: The module is designed for indoor use and should not be exposed to harsh environmental conditions.
• Not Hot-Swappable: SCXI modules are not hot-swappable. You must power off and unplug the SCXI chassis before installing or removing the SCXI-1120D module to prevent damage.
• ESD Precautions: Always handle the module in a static-safe environment and follow proper electrostatic discharge (ESD) precautions.
• Cable Connections: To minimize noise and thermal offsets, use shielded, twisted-pair copper wire for all cable connections to the module. Keep the connection wires as short as possible.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Please make an inquiry for more models：