Signal Converter - 4-20mA MTL4046C | MTL

MTL4046 4-20mA Hazardous Area Signal Converter with HART Support

The MTL4046 provides reliable signal conversion for demanding industrial environments. This advanced converter handles 4-20mA signals with extended measurement range capability. It supports full bi-directional HART communication for smart device integration. The unit delivers robust performance in Zone 0 hazardous locations with complete safety certification.

Key Technical Specifications

• The converter processes 4-20mA signals with 1-26mA range capability.
• It supports load capacity up to 800Ω at 20mA for long distances.
• The unit maintains high accuracy of ±20μA at reference temperature.
• It features low temperature drift of ±1μA/°C for stable operation.
• A fast response time of 100ms ensures quick system settling.
• It requires 24V DC power at 58mA typical with 1.4W maximum.
• The device provides 250V AC isolation with floating input circuit.

HART Communication Features

• The converter supports bi-directional HART protocol communication.
• It maintains 500Hz to 10kHz bandwidth for clear digital signals.
• The unit enables handheld communicator access via designated terminals.
• It ensures low ripple below 40μA for stable signal transmission.

Fault Detection & Safety

• The system detects open and short-circuit conditions in field wiring.
• It triggers preset current drop during wiring fault events.
• The MTL4046C variant provides open-circuit only detection.
• It works safely with non-energy-storing simple apparatus.
• A green LED indicator shows power status for easy monitoring.

Terminal Connections Guide

• Input Signals: Terminal 12 for positive, Terminal 11 for negative
• Output Signals: Terminal 3 for positive, Terminal 4 for negative
• HART Communication: Terminals 2/8 for positive, 5/7 for negative
• Power Supply: Terminal 14 for positive, Terminal 13 for negative
• All connections use standard screw terminals for secure wiring.

Industrial Applications

• Perfect for valve positioners in oil and gas pipeline systems.
• Ideal for pressure transmitters in chemical processing plants.
• Essential for HART-enabled field devices in Zone 0 areas.
• Reliable for process control loops requiring fault monitoring.
• Critical for safety systems needing open-circuit detection.

Installation & Delivery

• The package includes one MTL4046 signal converter module.
• You receive complete datasheets with wiring diagrams for setup.
• The unit supports standard DIN rail mounting in control panels.
• We ship via DHL and FedEx with 24-48 hour delivery options.
• The converter is ready for immediate installation upon receipt.

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