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MTL4549C | Dual-Channel 4-20mA HART Signal Converter

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About the Product

MTL4549 Dual-Channel 4-20mA HART Signal Converter

Dual-Channel Hazardous Area Solution

Converts 4-20mA signals to safely control HART devices in Zone 0/Div.1 hazardous locations. Two isolated channels support simultaneous operation of valve positioners, I/P converters, or other field instruments.

Key Specifications

  • Channels: 2 fully isolated
  • Signal Range: 4-20mA (1mA under/24mA over range)
  • Load Capacity: 800Ω per channel (16V @ 20mA)
  • HART Communication: 500Hz-10kHz bidirectional
  • Accuracy: ±20µA at 20°C (±1µA/°C drift)
  • Response Time: 100ms to within 200µA of target

Advanced Diagnostics

  • MTL4549: Detects both open circuits (<0.9mA) AND short circuits (<50Ω)
  • MTL4549C: Open-circuit detection only (no short-circuit)
  • Visual Status: Green power LED

Technical Details

  • Power: 24V DC (70mA max, 1.6W dissipation)
  • Isolation: 253V AC/DC between zones
  • Safety Ratings: Uo=28V, Io=93mA, Po=0.65W per channel
  • Certifications: Zone 0, IIC, T4-T6; Div.1 Group A

Industrial Applications

  • Dual-valve control in refineries
  • HART-enabled pressure transmitters
  • Redundant safety systems
  • Process control loops with diagnostics
  • Quick Quotes: Receive pricing and availability fast from our dedicated customer service team.
  • Delivery: Expedited, freight, and international shipping available worldwide.
  • Warranty: NexAuto offers a 12-month warranty on all parts purchased from us, in addition to any manufacturer coverage.
  • Returns: 30-day return policy for defective or mismatched parts, ensuring peace of mind.
  • Payment: Flexible options including major credit cards, PayPal, and bank transfers.
  • Custom Calibration: Provide your specifications, and we’ll handle the rest with precision.
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