Product Description

The MCR-SL-PT100-LP-NC (part number 2810308) is a loop-powered temperature measuring transducer from Phoenix Contact, designed for precise temperature monitoring using Pt 100 resistance temperature detectors (RTDs). This compact device converts the resistance change of the Pt 100 sensor into a standardized 4–20 mA current signal, facilitating seamless integration with control and monitoring systems. It supports 2-, 3-, or 4-wire configurations for Pt 100 sensors and is configurable via accessible DIP switches, allowing users to set parameters such as connection method, temperature range, and output signal type. The MCR-SL-PT100-LP-NC operates without requiring an additional auxiliary voltage, drawing power directly from the output loop, and features electrical isolation between input, output, and power supply to enhance system protection.

Technical Specifications

• Input:
• Sensor Compatibility: Pt 100 RTDs (IEC 60751/EN 60751)
• Connection Methods: 2-, 3-, or 4-wire configurations
• Sensor Input Current: 1 mA (constant)
• Temperature Measuring Range: Configurable between -150 °C and +300 °C
• Output:
• Signal Type: 4–20 mA current loop
• Output Range: Configurable as 4–20 mA or 20–4 mA
• Maximum Output Current: 23 mA (output limit)
• Load Resistance: (Supply Voltage - 12 V) / 22 mA
• Power Supply:
• Type: Loop-powered
• Supply Voltage Range: 12 V DC to 30 V DC
• Current Consumption: < 4.5 mA (excluding signal current)
• Power Consumption: < 150 mW (excluding signal current)
• Performance:
• Linearity Error: < 0.05% of the full measuring range
• Transmission Error: ≤ 0.25% across the full measuring range
• Step Response (0–99%): < 200 ms
• Temperature Coefficient: < 0.02%/K
• Isolation:
• Electrical Isolation: Between input, output, and power supply
• Rated Insulation Voltage: 30 V AC / 50 V DC
• Test Voltage: 1.5 kV AC (50 Hz, 60 s)
• Insulation Type: Basic insulation per IEC/EN 61010
• Environmental Conditions:
• Operating Temperature: -20 °C to +65 °C
• Storage/Transport Temperature: -40 °C to +85 °C
• Relative Humidity: 5% to 95% (non-condensing)
• Degree of Protection: IP20
• Physical Characteristics:
• Width: 6.2 mm
• Height: 93.1 mm
• Depth: 102.5 mm
• Weight: Approximately 68.4 gompliance Standards: CE, UL, cUL, RoHS compliant