Turck BL20-2AI-PT NI-2 3 Analog Input Module

Turck BL20-2AI-PT/NI-2/3 is a two-channel analog input module for RTD temperature sensors within the TURCK BL20 modular I/O system. It directly interfaces with Pt100, Pt500, Pt1000, Ni100, and Ni1000 RTD sensors to deliver resistance-temperature measurements for accurate process monitoring in industrial automation. The module provides galvanic isolation between field and bus electronics, runs on a 24 V DC system power, and is designed as a low-power I/O block mounted on a DIN rail via the BL20 backplane. It carries IP20 protection and operates from 0°C to +55°C, with LED diagnostics that indicate channel and module status for quick troubleshooting. Communication to the PLC or control system occurs through a BL20 fieldbus gateway, enabling integration in process control, chemical processing, manufacturing lines, HVAC monitoring systems, and other industrial machinery where precise temperature input is required. Common replacements include TURCK BL67-2AI-RTD, Siemens ET200SP RTD, and Phoenix Contact AXL E RTD modules.