Emerson | EPRO | PR6423/002-121+CON041 | Eddy Current Sensor

EPRO PR6423/002-121 Eddy Current Sensor

The EPRO PR6423/002-121 Eddy Current Sensor is designed for critical turbomachinery applications such as steam, gas, and hydro turbines, compressors, pumps, and fans. It measures radial and axial shaft displacement, position, eccentricity, and speed/key.

Key Specifications

• Sensitivity/Linearity: 4 V/mm (101.6 mV/mil) ±1.5% max
• Air Gap (Center): Approx. 2.7 mm (0.11″) nominal
• Nominal Range Static: ±2.0 mm (0.079″)
• Range Dynamic: 0 to 1,000 µm (0 to 0.039″)
• Shaft Diameter: ≥80 mm
• Weight (Sensor & 1M Cable, No Armor): 200 grams (7.05 oz)
• Operating Temperature: -35 to 180°C (-31 to 356°F)

CON041 Eddy Current Signal Converter

The CON041 Eddy Current Signal Converter is designed for use with PR6422, PR6423, PR6424, and PR6426 sensors. It converts sensor signals for measurement.

Dynamic Performance

• Frequency Range (-3 dB): 0 to 20,000 Hz
• Rise Time: <15 μs

Environmental

• Operating Temperature Range: -30 to 100°C (-22 to 212°F)
• Shock and Vibration: 5g @ 60Hz @ 25°C (77°F)
• Protection Class: IP20

Power & Electrical

• Supply Voltage Range: -23V to -32V (Output Range -4V to -20V)
• Housing Material / Weight: PA 6.6 / ~60 grams (2.12 oz)
• Mounting: Din Rail
• Connections: Screw Terminal (Max. 1.5mm², Wire-end Sleeves)

Hazardous Area Approvals (Intrinsic Safety)

• ATEX: II 2 G Ex ia IIC T4 Gb, -20°C ≤ Ta ≤ 80°C
• IEC-Ex: Ex ia IIC T4 Gb, -20°C ≤ Ta ≤ 80°C
• CSA: Class I Division 1, Groups A, B, C, D, T4