1794-IR8 Product datasheet 

1794-IR8 Functional Description

The Allen-Bradley 1794-IR8 RTD Input Module is an 8-channel RTD input module designed for precise temperature monitoring in industrial automation applications. This DIN-rail mounted module supports a wide 1-433 ohm input range with exceptional 16-bit resolution, ensuring accurate measurements across various RTD types including platinum, nickel, and copper sensors. The Input RTD Module 1794-IR8 AB delivers 0.05% full-scale accuracy in normal mode, improving to 0.01% in enhanced mode, making it ideal for critical temperature control processes.

Engineered for robust performance, the Rockwell 1794-IR8 RTD 8 Input FLEX I/O Analog Input Module features impressive noise rejection capabilities (-60dB at 60Hz) and 707V DC isolation protection. Its flexible configuration supports multiple RTD standards including 100Ω Pt385 Euro (-200 to +870°C) and 100Ω Pt3916 U.S. (-200 to +630°C) variants. The module's 718.36μA excitation current and 0-2.62Hz channel bandwidth ensure stable readings in electrically noisy industrial environments.

The RTD INPUT MODULE Allen-Bradley 1794-IR8 offers versatile scanning options, with system throughput programmable from 28ms (8 channels) in normal mode to 650ms per channel in enhanced mode. With a maximum power dissipation of 3W at 31.2V DC and thermal dissipation of 10.2 BTU/hr, this module maintains reliable operation within -20°C to +100°C compensation range. Its compact design integrates seamlessly into Flex I/O systems while providing overvoltage protection (35V DC/25V AC continuous).

As a key component in process control systems, the 1794-IR8 Controller Module 1794 Series combines high accuracy with operational flexibility. Whether used in chemical processing, power generation, or manufacturing, this RTD module delivers the measurement precision and reliability expected from Allen-Bradley's industrial automation solutions, making it an excellent choice for demanding temperature monitoring applications.