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

Description:

The TURCK BL20-2AI-PT/NI-2/3 Analog Input Module is used in industrial automation systems as a distributed I/O module for acquiring temperature signals from resistance temperature detectors (RTDs). It is part of the TURCK BL20 modular I/O system and is designed to interface directly with Pt100, Pt500, Pt1000, Ni100, and Ni1000 temperature sensors for accurate process monitoring. Commonly installed in control cabinets, process automation systems, manufacturing equipment, and temperature-controlled industrial applications where reliable analog temperature input acquisition is required. Maintenance engineers, OEM machine builders, and system integrators use this module for replacement of failed I/O modules, system expansion, and restoration of temperature monitoring functionality.

Applications:

The TURCK BL20-2AI-PT/NI-2/3 is used in industrial automation systems to read temperature data from RTD sensors and transmit it to PLC or control systems via a fieldbus gateway. It is commonly applied in process control systems, chemical processing, manufacturing lines, HVAC monitoring systems, and industrial machinery where precise temperature measurement and control are required.

Technical Specifications:

• Manufacturer: TURCK
• Model / Part number: BL20-2AI-PT/NI-2/3 (D-45466 / 6827017)
• Product type: Analog input I/O module
• System: TURCK BL20 modular I/O system
• Input channels: 2 analog inputs
• Sensor types supported: Pt100, Pt500, Pt1000, Ni100, Ni1000 RTD sensors
• Measurement type: Resistance temperature measurement (RTD)
• Input signal type: Analog temperature input
• Electrical isolation: Galvanic isolation between field and bus electronics
• Supply voltage: 24 V DC system power
• Power consumption: Low-power industrial I/O module (system dependent)
• Mounting: DIN rail mounted BL20 backplane system
• Protection rating: IP20
• Operating temperature: 0°C to +55°C
• Diagnostics: LED status indication for channel and module diagnostics
• Communication: Via BL20 fieldbus gateway
• Application environment: Industrial process control and automation systems

Common Replacements:

• TURCK BL67-2AI-RTD module (modern distributed I/O equivalent)
• Siemens ET200SP RTD analog input module
• Phoenix Contact AXL E RTD temperature input module