MTL5575 Eaton MTL5500 Temperature Converter | RTD THC Signal Module

MTL5575 Industrial Temperature Signal Converter

MTL5575 from the MTL5500 Series converts low-level temperature signals into stable 4-20mA process outputs.

The module supports thermocouples, millivolt sources, and 2, 3, or 4-wire RTD sensors.

Its compact DIN rail architecture simplifies integration inside modern process control cabinets.

The converter delivers accurate temperature transmission with strong EMC rejection performance.

Integrated alarm logic improves monitoring reliability in hazardous process applications.

Signal Conditioning Architecture

• Supports RTD and thermocouple sensor technologies
• Processes low-level millivolt temperature signals
• Provides stable isolated 4-20mA output transmission
• Designed for hazardous Zone 0 installations
• Configurable burnout and fault protection logic
• Excellent noise rejection for industrial environments
• Compact housing for high-density cabinet layouts

Global PLC Spare HUB's Insight

MTL5575 performs effectively in critical temperature monitoring loops requiring precise analogue transmission.

The module maintains excellent stability in environments containing heavy motor and inverter interference.

Instrumentation engineers frequently deploy this converter in chemical plants, utilities, and thermal processing systems.

The configurable sensor failure strategy improves process safety during sensor degradation events.

Its strong common mode rejection reduces unwanted measurement fluctuations in long cable installations.

Core Technical Profile

• Brand: Eaton Crouse-Hinds
• Manufacturer: MTL Instruments
• Series: MTL5500 Series
• Model: MTL5575
• Product Type: Temperature Converter
• Input Types: Thermocouple, mV, RTD
• RTD Compatibility: 2-wire, 3-wire, 4-wire
• Input Signal Range: -75mV to +75mV
• Output Signal: 4-20mA nominal
• Maximum Output Load: 600Ω
• Number of Channels: Single channel
• Transfer Accuracy: ±11µA
• Temperature Drift: ±0.6µA/°C
• Response Time: Configurable
• Default Response Time: 500ms
• Cold Junction Compensation: Automatic or selectable
• Cold Junction Error: ≤1.0°C
• RTD Excitation Current: 200µA
• Common Mode Rejection: 120dB
• Series Mode Rejection: 40dB
• Isolation Protection: 250V RMS galvanic isolation
• Power Supply: 20-35VDC
• Current Consumption: 50mA
• Power Dissipation: 1.2W
• Burnout Detection: Early thermocouple burnout monitoring
• Alarm Trigger: Loop resistance increase above 50Ω
• LED Indicators: Green power, yellow status
• EMC Compliance: EN61326
• Hazardous Approval: IECEx/ATEX Zone 0
• Operating Temperature: -20°C to +60°C
• Storage Temperature: -40°C to +80°C
• Humidity Range: 5-95% RH
• Mounting Method: 35mm DIN rail
• Terminal Capacity: Up to 2.5mm² conductors
• Connection Type: Crimp ferrules
• Dimensions: 109.8 × 118.8 × 15.8mm
• Weight: 150g

Field Integration Compatibility

• Temperature transmitters
• RTD process probes
• Thermocouple sensing assemblies
• Distributed control systems
• PLC analogue input modules
• Industrial furnace monitoring systems
• Boiler temperature control panels
• Process skids and instrumentation cabinets

Recommended Application Environments

• Refinery temperature monitoring loops
• Heat exchanger instrumentation systems
• Pharmaceutical process control lines
• Industrial drying and curing systems
• Steam generation facilities
• Food processing thermal regulation
• Hazardous chemical production units
• Power plant instrumentation networks

Built-In Diagnostic Functions

• Detects thermocouple burnout conditions early
• Monitors loop resistance abnormalities
• Supports configurable sensor failure response
• Improves predictive maintenance planning
• Reduces unexpected instrumentation downtime
• Provides continuous operating status indication

Configuration and Maintenance Guidance

• Configure parameters through MTL PCS45 software
• Use PCL45USB interface for calibration access
• Verify sensor type selection before commissioning
• Separate low-level signals from power wiring
• Maintain proper cabinet grounding practices
• Inspect field terminals during scheduled maintenance

Shipping and Warranty Information

• 12-month warranty support included
• Fast shipment within 24-48 hours
• FedEx express logistics available
• UPS international delivery supported
• DHL worldwide shipping service available
• Protective anti-static export packaging included

Technical FAQ

Why does the module support multiple RTD wiring methods?

Different wiring configurations improve measurement accuracy across varying installation distances.

How can engineers minimize temperature signal instability?

Use shielded instrumentation cable and isolate sensor wiring from variable frequency drives.

What advantages does configurable burnout protection provide?

The system maintains safer process reactions during sensor disconnection or thermal failure conditions.

Why is common mode rejection important in industrial cabinets?

High rejection capability reduces electrical interference from motors and switching equipment.

What should buyers verify before selecting a temperature converter?

Confirm sensor compatibility, hazardous certification, response speed, and controller input requirements.

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