Wago 750-484 2Ai, 4-20Ma Hart

Why Choose the WAGO 750-484 2-Channel Analogue Input Module?

The WAGO 750-484 is a specialised 2-channel analogue input module designed for the WAGO 750 Series distributed I/O system. It processes standard industrial 4–20 mA current signals from field devices and converts them into digital values for PLCs and automation controllers.

This module supports HART communication and is engineered for use with intrinsically safe sensors operating in hazardous areas such as Zone 0 and Zone 1. It reads process values via the analogue interface while simultaneously enabling configuration and diagnostics of intelligent HART field devices. :contentReference

The compact DIN-rail module integrates directly with WAGO fieldbus couplers and programmable controllers, forming part of a scalable distributed automation architecture. It also supplies power to connected two-wire transmitters, eliminating the need for a separate power supply in many instrumentation installations. :contentReference

Key Advantages

• Reliable 2-channel analogue current input for process instrumentation.
• Supports industry-standard 4–20 mA current loops.
• HART communication capability for advanced field device integration.
• Intrinsically safe interface for hazardous area instrumentation.
• Integrated power supply for two-wire signal transmitters.
• Seamless integration into WAGO 750 Series distributed I/O systems.

Key Features

• 2 analogue input channels.
• Signal type: 4–20 mA current loop.
• HART protocol support for smart field devices.
• 12-bit analogue-to-digital conversion.
• Parameterisable input filtering.
• Integrated diagnostics including wire-break detection.
• Designed for use with WAGO 750 Series fieldbus nodes.

Technical Specifications

• Manufacturer: WAGO
• Series: WAGO I/O System 750
• Model: 750-484
• Module type: Analogue input module
• Number of inputs: 2 analogue channels
• Signal type: Current
• Input range: 4…20 mA
• Sensor connection: 2-wire transmitters
• Resolution: 12 bit
• Typical conversion time: approx. 10 ms
• Sensor supply voltage: approx. 16.5 V DC
• System supply voltage: 5 V DC via internal bus
• Mounting: 35 mm DIN rail
• Connection technology: WAGO CAGE CLAMP® spring terminals
• Ingress protection: IP20

Process Instrumentation and HART Integration

Current loop signals such as 4–20 mA are widely used across industrial process automation for reliable transmission of analogue measurements over long distances. Sensors such as pressure transmitters, flow meters and level instruments commonly use this signalling method because it provides strong immunity to electrical noise and signal loss.

The WAGO 750-484 module enables automation controllers to read these analogue signals while also communicating with intelligent field devices using the HART protocol. This allows engineers to configure instruments, retrieve diagnostics and access additional process variables directly through the control system. :contentReference

Typical Applications

• Industrial process instrumentation and measurement systems.
• Integration of HART-enabled transmitters.
• Oil, gas and chemical plant automation.
• Energy generation and utilities monitoring.
• Distributed PLC and remote I/O systems.

Trusted by Automation Engineers

WAGO 750 Series I/O modules are widely trusted by automation engineers and system integrators to build scalable distributed control systems across manufacturing, utilities and process industries.