Emerson PR6423/000-011 Eddy Current Sensor for Turbomachinery

Product Description

Product Overview

The EPRO PR6423/000-011 is a high-precision eddy current displacement sensor designed for accurate, non-contact measurement of shaft vibration, position, and eccentricity in turbomachinery.
This sensor belongs to Emerson’s trusted PR6423 series, widely used in condition monitoring and machinery protection systems.

Moreover, the sensor operates using eddy current technology, which ensures wear-free measurement and long-term signal stability.
The 8 mm probe tip combined with an 11 meter integrated cable allows installation in machines with larger distances between the probe and monitoring system.

The PR6423/000-011 supports seamless integration with Emerson monitoring platforms, including AMS 6500 and VM600, and complies with API 670 standards, making it suitable for critical machinery protection applications.

Technical Specifications

Product Type: Eddy Current Displacement Sensor
Model Number: PR6423/000-011
Manufacturer: Emerson / EPRO

Probe Tip Diameter: 8 mm
Integrated Cable Length: 11 m

Linear Measurement Range: 2 mm (80 mils)
Initial Air Gap: 0.5 mm (20 mils)

Incremental Scale Factor (ISF):

• 8 V/mm (203.2 mV/mil) ±5% at 0–45 °C

Deviation from Best Fit Line (DSL):

• ±0.025 mm (±1 mil)

Minimum Shaft Diameter: 25 mm (0.79 in)
Target Material: Ferromagnetic steel (42CrMo4 / AISI 4140 standard)

Frequency Response: Up to 10 kHz
Output Signal: Analog voltage compatible with Emerson monitoring systems

Operating Temperature Range:

• –40 °C to +125 °C standard

• Up to +160 °C in T3 variants

Protection Class: IP66 (IEC 60529)
Housing Material: Stainless steel
Weight: 0.1–0.2 kg depending on cable length

Compliance: API 670

Frequently Asked Questions

Q1: What does the PR6423/000-011 measure?
A1: It measures shaft vibration, radial and axial displacement, and eccentricity using eddy current technology.

Q2: What is the cable length for this sensor?
A2: The sensor includes an integrated 11-meter cable for flexible installation distances.

Q3: Can it operate in high-temperature environments?
A3: Yes, standard operation is –40 °C to +125 °C, with T3 variants up to +160 °C.

Q4: Is it compatible with Emerson monitoring systems?
A4: Yes, it works with AMS 6500, VM600, and other Emerson monitoring platforms.

Q5: Does it require physical contact with the shaft?
A5: No, it uses non-contact eddy current measurement, eliminating mechanical wear.