Description

Product Description

Overview

The PR6423/016-030 from Emerson’s EPRO series is a high-precision eddy-current measurement system designed for continuous shaft monitoring in rotating machinery. Combining the PR6423/016-030 proximity probe with the CoNo21 signal conditioner, this system enables accurate detection of shaft vibration, axial displacement, eccentricity, and thermal expansion. The CoNo21 module converts raw sensor signals into standardized analog outputs for seamless integration with control and protection systems.

Engineered for reliability, the system is factory-aligned to meet API 670 standards, ensuring consistent performance without requiring additional calibration over long-term operation.

Probe Design and Configuration

The PR6423/016-030 is part of the compact 8 mm probe series, optimized for installations with limited space and fixed cable routing.

• Code 016 indicates a specialized mechanical design for constrained mounting environments.

• Code 030 specifies an integrated 3-meter cable for simplified installation and predictable wiring layout.

This configuration is ideal for applications requiring defined cable length and quick deployment.

Technical Specifications

Measurement Characteristics

• Measurement principle: Eddy-current, non-contact sensing

• Probe tip diameter: 8 mm

• Linear measurement range: 2.0 mm (80 mil)

• Nominal working gap: 0.5 mm

• Sensitivity: 8 V/mm

• Frequency response: DC to 10 kHz

• Resolution: <0.1 μm (system-dependent)

• Linearity: ≤ ±1% of full scale (with matched conditioner)

• Minimum target shaft diameter: ≥25 mm

• Target material: Ferromagnetic steel (e.g., AISI 4140, 42CrMo4)

Mechanical and Environmental Data

• Thread options: M10×1 or 3/8-24 UNF

• Cable length: 3 m integrated cable

• Cable type: PTFE insulated (optional armored version)

• Housing: Stainless steel

• Probe tip material: PEEK

• Operating temperature: -40°C to 125°C

• Vibration and shock rating: Compliant with industrial standards for rotating machinery

Applications

The PR6423/016-030 is widely used in:

• Continuous monitoring of turbine, compressor, and pump shafts

• Detection of axial and radial shaft displacements

• Integration with machinery protection systems for predictive maintenance

FAQ

Q: Can the probe be used on non-ferromagnetic shafts?
A: The PR6423/016-030 is optimized for ferromagnetic materials. Alternative probes are recommended for non-ferrous shafts.

Q: Does the system require field calibration?
A: No, the probe and CoNo21 conditioner are factory-matched for long-term operation.

Q: Can cable length be customized?
A: The standard configuration includes a 3-meter cable; extended lengths may be available upon request.

Q: What is the maximum operating temperature?
A: The probe is rated for continuous operation up to 125°C.

Specifications

• Brand: EMERSON

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems