Emerson PR6423/014-010 EPRO Eddy Current Sensor

Emerson PR6423/014-010 (part of the renowned EPRO series) is a high-precision eddy current sensor engineered to provide continuous, non-contact measurement of shaft vibration, axial displacement, and eccentricity in the most demanding rotating machinery applications. As a factory-matched component of the PR6423/014-010 CON021 proximity measurement system, this 8mm sensor delivers the reliability and accuracy required for API 670-compliant machinery protection in power generation, oil & gas, and industrial process industries .

What is the Emerson PR6423/014-010?

The Emerson PR6423/014-010 is an 8mm eddy current displacement sensor designed for permanent installation on critical rotating equipment including steam turbines, gas turbines, compressors, pumps, and hydroelectric generators . The part number configuration provides specific installation characteristics: the '014' suffix indicates a 65mm case thread length with a 10-meter integral cable, while the '010' designation typically specifies connector type and sensor configuration . This sensor operates on the eddy current principle, generating a low-power radio frequency signal that changes amplitude based on the distance to the target shaft surface, enabling precise measurement without physical contact .

The PR6423/014-010 is typically paired with the CON021 signal converter, which conditions the raw sensor signal into industry-standard voltage outputs for integration with machinery monitoring systems like the Emerson AMS 6500, Bently Nevada 3500, or plant DCS/PLC systems .

Key Technical Specifications (Specs)

The PR6423/014-010 is engineered to exacting standards for industrial reliability and precision.

Manufacturer: Emerson (EPRO Series)

Model Number: PR6423/014-010

Sensor Type: Eddy Current Displacement Sensor (Non-Contact)

Tip Diameter: 8 mm

Linear Measurement Range: 2.0 mm (80 mils)

Recommended Initial Air Gap: 0.5 mm (20 mils)

Case Thread Length: 65 mm (configuration code '014')

Integral Cable Length: 10 meters (configuration code '014')

Incremental Scale Factor: 8 V/mm (203.2 mV/mil) ±5% @ 0-45°C

Linearity: ±1% of full scale (maximum deviation ±0.025 mm)

Frequency Response: DC to 10 kHz (sensor only); DC to 20 kHz with CON021 converter

Minimum Target Diameter: 25 mm (ferromagnetic steel, e.g., 42CrMo4, AISI 4140)

Operating Temperature (Sensor): -35°C to +180°C (-31°F to +356°F)

Protection Rating: IP66 (IEC 60529) - dust-tight and protected against high-pressure water jets

Housing Material: Stainless Steel with PEEK (Polyether Ether Ketone) sensor tip

Cable Insulation: PTFE (Teflon) rated to 150°C

Connector: Self-locking Lemo type for vibration-resistant connection

Weight: Approximately 100 grams (with 1m cable)