MTL4073 Temperature Transmitter Zone 0 Sensor Converter with SCJ01

MTL4073 Smart Temp Transmitter: Hazardous-Zone Sensor to 4-20mA Converter

Your Temperature Monitoring Guardian

The MTL4073 converts explosive-area temperature signals into safe 4-20mA currents. Works with 8 thermocouple types and 2/3/4-wire RTDs. Includes free SCJ01 connector for cold-junction compensation. Configure easily via PC software.

Precision Technical Specs

• Brand: MTL
• Model: MTL4073
• Thermocouple Types: J,K,T,E,R,S,B,N
• RTD Support: 2/3/4-wire Pt100
• Input Range: -75mV to +75mV / 0-400Ω
• Accuracy: ±0.05% (THC) / ±80mΩ (RTD)
• Temp Stability: ±0.003%/°C drift
• Noise Rejection: 120dB CMRR
• Response Time: Instantaneous (software adjustable)
• Output: 4-20mA (600Ω max load)
• Power: 20-35V DC (55-60mA)

Simple Setup Guide

• Connect sensors: Terminals 5-6 (THC/RTD)
• RTD wiring: Use Terminal 1 for 3-wire, Terminal 2 for 4-wire
• Output: Terminals 9(+) & 11(-)
• Power: 14(+) & 13(-)
• Attach SCJ01 connector for thermocouples

Certified Safety

• ATEX/IECEx: Zone 0, IIC, T4
• FM/UL: Division 1, Group A
• Entity Parameters: 7.2V, 11.5mA, 245mH

What’s In The Box

• MTL4073 signal conditioner unit
• SCJ01 hazardous-area connector
• Safety certificates & manuals
• 12-month warranty
• Global shipping: FedEx/UPS/DHL

Pro Tips

• Use PCS45 software for custom scaling
• Enable sensor burnout alarms for failsafe operation
• Set 50/60Hz filtering matching local power

Expert FAQs

• Q: Does it work with Type S thermocouples?
  A: Yes! Supports all 8 major THC types
• Q: Minimum excitation current for RTDs?
  A: 200µA – prevents sensor self-heating
• Q: Can I use existing RTD sensors?
  A: Yes – compatible with BS 1904/DIN 43760 standards
• Q: Software configuration required?
  A: Optional – works out-of-box with default K-type settings
• Q: Replacement for sensor failure?
  A: 12-month warranty covers all components