RTD Interface Module | MTL MTL5082

MTL5082 Hazardous Area RTD Interface Module

Core Functionality

Isolates and transmits RTD signals from Zone 0 areas with 2/3/4-wire flexibility. Designed for Pt100 sensors with open-circuit protection.

Technical Specifications

RTD Compatibility:
• Wire Configurations: 2/3/4-wire (switch-selectable)
• Resistance Range: 10Ω to 400Ω
• Excitation Current: 200μA nominal
• Open-Circuit Response: Upscales to 420Ω

Performance:
• Accuracy: ±10mΩ/°C (0.01% @100Ω)
• Response Time: <1s to 96% final value
• Output Range: 10Ω-400Ω (100µA-5mA source)

Power & Safety:
• Consumption: 55mA @24V DC
• Isolation: 250V AC
• Certifications: Zone 0/Div.1, IIC, T4, Group A
• Safety Parameters: Uo=6.6V, Io=27mA, Po=50mW

Installation Features

• Top-mounted configuration switches
• Independent safe/hazardous area wiring
• Green LED power/status indicator
• DIN rail mounting

Terminal Functions

Hazardous Area:
1: RTD -ve | 3: RTD +ve | 4: 3-wire -ve | 5: 4-wire +ve

Safe Area:
9/11: Output -ve | 10/12: Output +ve | 13/14: Power

Industrial Applications

• Petrochemical temperature monitoring
• Pharmaceutical process validation
• Furnace temperature safety systems
• LNG storage tank monitoring
• Explosive atmosphere batch processing

Key Advantages

• No configuration required - plug-and-play
• Handles all RTD wiring types
• Automatic fault detection (420Ω upscale)
• Meets EN50020 simple apparatus standards
• 1-second response for real-time control

Package Includes

• MTL5082 module
• DIN rail clips
• Quick-start guide