MTL Instruments MTL5074 Temperature Transmitter

MTL5074 Temperature Converter

The MTL5074 from MTL Instruments converts thermocouple signals to standard 4-20mA outputs. This single-channel device operates safely in Zone 0 hazardous areas. It provides reliable temperature measurement for various industrial processes.

Key Technical Specifications

• Brand: MTL Instruments
• Model: MTL5074
• Product Type: Temperature Converter
• Channels: 1 channel
• Output Signal: 4 to 20mA nominal
• Load Resistance: 600Ω maximum
• Isolation: 250V ac between circuits
• Unit Weight: 0.10 kg

Input Signal Compatibility

• Thermocouple Types: J, K, T, E, R, S, B, N to BS 4937
• Voltage Range: -75 to +75mV input capability
• Resistance Range: 0 to 400Ω for RTD applications
• Input Impedance: 10MΩ for minimal loading
• Signal Span: 3 to 150mV or 10 to 400Ω selectable ranges

Hazardous Area Certification

• Signal Source Location: Zone 0, IIC, T4 hazardous area
• Division Rating: Division 1, Group A hazardous location
• The converter provides intrinsic safety for connected sensors
• It meets strict standards for explosive atmosphere applications

Output Configuration

• Output Range: 4 to 20mA standard process signal
• Output Direction: Direct or reverse action selectable
• Burnout Protection: Upscale, downscale, or off options
• The unit drives loads up to 600Ω without signal degradation

Power Requirements

• Current Consumption: 68mA at 24V with 20mA signal
• Power Dissipation: 1.5W at 24V maximum
• Supply Range: Compatible with 20V to 35V DC systems
• Green LED provides clear power and status indication

Frequently Asked Questions

• What thermocouple types does the MTL5074 support?
  It supports J, K, T, E, R, S, B, and N type thermocouples to BS 4937.
• What happens if my sensor fails?
  You can select upscale, downscale, or off response for sensor burnout.
• What is the maximum load resistance?
  The output can drive loads up to 600Ω while maintaining accuracy.
• Is this suitable for hazardous areas?
  Yes, it is certified for Zone 0, IIC, T4 and Division 1, Group A areas.