Emerson EPRO PR6423/000-031-CN+CON021 Eddy Current Sensor

Description

The EPRO PR6423/000-031-CN+CON021 is an eddy current displacement sensor that is used to measure static and dynamic shaft displacement. It is a contactless sensor that can be used in a variety of applications, including axial and radial shaft displacement, shaft eccentricity, shaft vibration, abrasion of thrust bearings, measurement of the oil film thickness, and crack detection.

Sensor (PR6423/003-030-CN):

• Measuring Range: 8 mm (linear measurement range)
• Initial Air Gap: 0.5 mm (20 mils)
• Incremental Scale Factor (ISF): 1S0: 8V/mm (203.2 mV/mil) ±5% at 0 to 45°C (+32 to +113°F)
• Deviation from Best Fit Straight Line (DSL): ±0.025 mm (±1 mil) at 0 to 45°C (+32 to +113°F)
• Minimum Shaft Diameter: 25 mm (0.79”)
• Environmental Specifications:
  • Protection Class: IP66
  • Operating Temperature Range:
    • Sensor with 1m Cable: -35 to +200°C (-31 to 392°F)
    • Cable & Connector: -35 to +150°C (-31 to 302°F)
• Material Properties:
  • Sensor Tip: PEEK (Polyether Ether Ketone)
  • Case: Stainless Steel
  • Cable: PTFE (Polytetrafluoroethylene)
  • Connector: Brass, nickel-plated
• Hazardous Area Approvals (Intrinsic Safety):
  • Certifications: ATEX, IEC-Ex, CSA (Area classification depends on the connected converter; refer to the converter documentation)
• Sensor Temperature Classification:
  • T6: Ta ≤ 64°C
  • T4: Ta ≤ 114°C
  • T3: Ta ≤ 160°C

Eddy Current Signal Converter (CON021):

• Dynamic Performance:
  • Frequency Range (-3 dB): 0 to 20,000 Hz
  • Rise Time: Less than 15 μs
• Power & Electrical:
  • Supply Voltage Range:
    • For PR6422, PR6423, PR6424, PR6426: -23V to -32V (Output Range: -4V to -20V)
    • For PR6425: -21V to -32V (Output Range: -2V to -18V)