MTL4546Y Hazardous Area Signal Conditioner 4-20mA HART

MTL4546Y: Hazardous Area Signal Conditioner with HART & Diagnostics

Technical Specifications

• Brand: MTL
• Model Options:
  • MTL4546 – Full open/short-circuit detection
  • MTL4546Y – Open-circuit detection only
• Input Range: 4-20mA (1mA under-range, 24mA over-range)
• Frequency Response: 500Hz-10kHz (HART)
• Accuracy: ±20μA at 20°C
• Temperature Stability: <1.0μA/°C drift
• Response Time: <100ms to settle

Environmental Ratings

• Certifications: Zone 0, IIC, T4-T6 / Div. 1, Group A
• Operating Temp: -20°C to +60°C
• Protection: <40μA ripple, >1MΩ output resistance

Diagnostics & Protection

• Automatic fault current reduction
• MTL4546 detects both open (0.5mA threshold) and short circuits (50Ω threshold)
• MTL4546Y detects open circuits only

Package & Support

• Includes: Unit, terminal blocks, documentation
• Warranty: 12 months
• Shipping: FedEx/UPS/DHL worldwide

Frequently Asked Questions

• Q: Difference between models?
  A: MTL4546 detects all wiring faults, MTL4546Y detects opens only
• Q: HART compatible?
  A: Yes, full digital signal support
• Q: Zone 0 certified?
  A: Yes, meets IIC T4-T6 standards