Allen-Bradley 1794-IT8 – 8-Channel Isolated Analog Input Module

Product Overview

The Allen-Bradley 1794-IT8 is an 8-channel isolated analog input module designed for use with the Flex I/O system. It provides highly accurate and isolated analog input processing for a wide variety of industrial applications. With signal isolation between input channels and the system, this module is designed to protect the system from electrical noise, transients, and voltage spikes, ensuring accurate and reliable data acquisition in harsh environments.

Technical Specifications

• Model: 1794-IT8
• Type: 8-Channel Isolated Analog Input Module
• Series: Flex I/O
• Input Type: Differential or single-ended
• Voltage Range: ±10V, 0-10V, 4-20 mA
• Input Impedance: 250KΩ (voltage input)
• Accuracy: ±0.1% of full scale
• Input Resolution: 12-bit
• Channel Configuration: 8 channels, individually isolated
• Signal Isolation: 1500V isolation between input channels and the system
• Operating Temperature: -20°C to 60°C (-4°F to 140°F)
• Storage Temperature: -40°C to 85°C (-40°F to 185°F)
• Dimensions: 4.75" x 3.85" x 2.16" (120.65 mm x 97.79 mm x 54.86 mm)
• Weight: 0.5 lbs (0.23 kg)
• Certifications: UL, CE, RoHS compliant

Key Features

1. 8 Channels of Isolated Analog Inputs
   The 1794-IT8 offers 8 isolated analog input channels, making it ideal for applications that require monitoring multiple analog signals simultaneously. Each input is individually isolated, providing superior protection against electrical interference.

2. High Accuracy
   With an accuracy of ±0.1% of full scale and 12-bit resolution, the module provides precise and reliable data readings for a wide range of industrial applications.

3. Signal Isolation for Protection
   Each channel of the 1794-IT8 is electrically isolated from the system, offering up to 1500V isolation. This helps prevent damage to the system from electrical spikes or noise that could occur in industrial environments.

4. Wide Input Voltage Range
   The module supports a variety of input types, including ±10V, 0-10V, and 4-20 mA, providing flexibility to handle different types of analog signals commonly used in industrial applications.

5. Wide Operating Temperature Range
   The 1794-IT8 is designed to perform reliably in harsh environments, with an operating temperature range from -20°C to 60°C (-4°F to 140°F), making it suitable for industrial conditions.

6. Compact and Easy to Install
   The module is designed for use with the Allen-Bradley Flex I/O system, offering a compact form factor and simple installation. It integrates seamlessly into existing control systems, reducing installation time and complexity.

Applications

The 1794-IT8 module is ideal for a variety of industrial applications, including:

• Process Control: Accurate monitoring of process variables such as temperature, pressure, and flow in industrial processes.
• Factory Automation: Provides reliable analog input data for PLCs in manufacturing automation systems.
• Monitoring Systems: Essential for systems that require continuous and reliable data acquisition from analog sensors.
• HVAC Systems: Ideal for use in heating, ventilation, and air conditioning systems to monitor temperature and humidity levels.