Temperature controller with LED display MTR20

digitalelectronicdual-display

Overview
The MTR20 electronic temperature controller is engineered for demanding industrial environments, notably surface treatment and electroplating plants. Its compact panel-mounted format, two-line multicolor LED display and simple front-panel controls enable precise regulation of heating systems while maintaining operational safety.

Key benefits

• Robust design
  • Chemical-resistant front panel
  • IP65 front protection for corrosive industrial atmospheres
• Intuitive operation
  • Permanent display of setpoint and actual value
  • Front-button parameter adjustment: hysteresis, measurement correction, alarm limit, cooling mode
• Improved safety
  • Real-time PT100 sensor monitoring (break/short-circuit detection)
  • Automatic equipment shutdown on detected fault
• Compact and flexible
  • Panel mounting or near-tank installation, suitable for confined spaces

Main applications

• Precise temperature control in industrial heating systems
• Use in corrosive environments such as electroplating
• Integration in control cabinets for industrial processes requiring strict regulation

Safety and compliance

• Meets EN 60529 protection rating requirements
• Enhanced operational safety through PT100 monitoring and automatic shutdown on fault

Technical specifications

• Number of setpoints: 2
• Output contacts: 1 changeover contact (10 A) + 1 normally open contact (5 A)
• Supply voltage: 230 V~ (+10% / -15%), 48–63 Hz
• Power consumption: max. 4 VA
• Measurement range: -200 °C to +600 °C
• Measurement accuracy: < 0.25% of measurement range
• Measurement input: PT100, 3-wire connection
• Protection class:
  • Front: IP65 (EN 60529)
  • Rear: IP20 (EN 60529)

Dimensions and installation

• Front panel format: 76 x 36 mm
• Installation depth: 62 mm
• Panel cut-out: 69 x 28.5 mm

Environmental conditions

• Operating temperature: 0–55 °C
• Humidity: max. 90% (non-condensing)