1794-IRT8XT

Product Description

Home > Products > Allen-Bradley > Flex I/O > 1794-IRT8XT Need Allen-Bradley 1794-IRT8XT? Analog Input Module for Allen-Bradley Flex I/O System. Supplied with full traceability and documentation. Request a quote... Price & Availability It provides 8 isolated input channels that can be configured for Resistance Temperature Detectors (RTDs) or thermocouples (TCs). This module is part of the Flex I/O family, which is known for its modularity and flexibility in distributed I/O applications. The 'XT' suffix indicates an extended temperature range and conformal coating, making it suitable for harsh environments, including hazardous locations (Class I, Division 2). The 1794-IRT8XT supports a wide range of RTD types (e.g., 100Ω platinum, 120Ω nickel, 10Ω copper) and thermocouple types (J, K, T, E, R, S, B, N). It offers high-resolution temperature conversion with 16-bit (RTD) and 15-bit (thermocouple) resolution. The module communicates with the PLC via the Flex I/O backplane, using the 1794-IB10XTB6 or similar terminal bases. It features channel-to-channel isolation of 75V (continuous) and 850V (hipot) for robust signal integrity. Designed for demanding applications, the 1794-IRT8XT operates in an extended temperature range of -20°C to +70°C (with conformal coating). It is certified for use in Class I, Division 2 hazardous locations, making it ideal for oil & gas, chemical, and pharmaceutical industries. The module supports both RTD and thermocouple inputs, allowing users to mix sensor types on the same module, reducing the number of modules required. With its rugged design and high accuracy, the 1794-IRT8XT is a reliable choice for temperature monitoring and control in process automation. The Allen-Bradley 1794-IRT8XT is a Flex I/O module designed for temperature measurement in industrial automation. Basic Product Information Supports multiple RTD types: 100Ω Pt, 120Ω Ni, 10Ω Cu, and more Supports thermocouple types: J, K, T, E, R, S, B, N Extended temperature range (-20°C to +70°C) with conformal coating Channel-to-channel isolation (75V continuous, 850V hipot) High resolution: 16-bit for RTD, 15-bit for thermocouple Hazardous location certification: Class I, Division 2 Compatible with Flex I/O communication adapters (e.g., 1794-AENT, 1794-ASB) 8 isolated input channels for RTD or thermocouple sensors Technical Specifications Version & Model Difference The 1794-IRT8XT is the extended temperature (XT) version of the standard 1794-IRT8 module. The XT version includes conformal coating on the circuit board, which protects against moisture, dust, and corrosive gases. It also has a wider operating temperature range (-20°C to +70°C) compared to the standard module (0°C to +55°C). The XT version is designed for use in harsh environments and hazardous locations. Functionally, both modules have the same input specifications and features, but the XT variant is more robust for demanding applications. Application Scenarios Can I mix RTD and thermocouple inputs on the same 1794-IRT8XT module? Yes, each of the 8 channels can be individually configured as either RTD or thermocouple input, allowing you to mix sensor types on the same module. What terminal base is required for the 1794-IRT8XT? The 1794-IRT8XT requires a Flex I/O terminal base such as the 1794-TB3 (screw type) or 1794-TB3S (spring clamp). The terminal base provides the wiring connections for the module. Is the 1794-IRT8XT suitable for hazardous locations? Yes, the 1794-IRT8XT is certified for Class I, Division 2 hazardous locations, making it suitable for use in areas where flammable gases or vapors may be present under abnormal conditions. What is the difference between 1794-IRT8 and 1794-IRT8XT? The 1794-IRT8XT is the extended temperature version with conformal coating, allowing operation from -20°C to +70°C. The standard 1794-IRT8 operates from 0°C to +55°C and lacks conformal coating. Both have identical input specifications. Allen-Bradley 1734-IE8C POINT I/O 8-Channel Analog Input Allen-Bradley 800T-QH2R 30 mm Indicator Allen-Bradley 1746-P4 SLC 500 Power Supply Module Allen-Bradley 1756-L85E ControlLogix 5580 Controller Allen-Bradley 1756-L71 ControlLogix 5570 Controller Allen-Bradley 22B-D010N104 PowerFlex 40 AC Drive Allen-Bradley 1492-IFM40DS24A-4 Digital Interface Module Allen-Bradley 1492-IFM40F Digital Interface Module