Epro CON011+PR6424/010-140 Eddy Current Vibration System

Product Description

The PR6424/010-140 + CON011 monitoring solution from Emerson Electric is a compact eddy-current based measurement system designed for precise tracking of shaft motion in rotating machinery. It is widely applied in condition monitoring environments where reliable vibration and displacement data are required for operational safety and predictive diagnostics.

The system combines a 16 mm proximity probe with a dedicated signal conditioner. The probe performs non-contact measurement of shaft dynamics, while the CON011 module converts the raw sensor signal into a standardized analog output for integration into control and protection architectures.

System Function Overview

• Non-contact eddy-current measurement for rotating shaft analysis

• Continuous monitoring of vibration, position, and eccentricity

• Signal conditioning for industrial control and monitoring systems

• Suitable for API 670-aligned machinery protection applications

• Designed for high-temperature and high-contamination environments

Technical Specifications

Probe Unit (PR6424/010-140)

• Model: PR6424/010-140

• Sensor Type: Eddy-current displacement probe

• Probe Diameter: 16 mm

• Measurement Range: ±2.0 mm static displacement

• Dynamic Range: 0–1,000 µm

• Sensitivity: 4 V/mm (101.6 mV/mil), linearity ≤ ±1.5%

• Nominal Air Gap: ~2.7 mm

• Minimum Shaft Diameter: ≥ 80 mm

• Target Material: Ferromagnetic steel (e.g., 42CrMo4)

• Frequency Response: DC to 20 kHz (system dependent)

Environmental Performance (Probe)

• Operating Temperature: –35 °C to +150 °C

• Temperature Drift: <4% per 100 K (typical API 670 range)

• Pressure Resistance: up to 10,000 hPa (approx. 145 psi)

• Shock Resistance: 5 g @ 60 Hz

• Protection Level: IP65 or higher depending on installation

Mechanical Construction (Probe)

• Housing Material: Stainless steel

• Cable Insulation: PTFE high-temperature material

• Cable Options: Armored or standard; LEMO or open-end termination

• Estimated Weight: approx. 0.8 kg (sensor with cable assembly)

Signal Converter (CON011)

• Function: Eddy-current signal conditioning and linearization

• Output Signal: –4 V to –20 V DC with AC vibration overlay

• Alternative Output Range: –2 V to –18 V (configuration dependent)

• System Bandwidth: up to 10–20 kHz

• System Linearity Error: ≤ ±1.5%

• Recommended Cable Length: ≤ 5 m between probe and converter

Environmental Conditions

• Operating Temperature: –30 °C to +100 °C

• Converter Housing: Aluminum alloy (GD-AlSi9Cu3)

• Installation: Control cabinet / panel mounting

System-Level Performance

• Measurement Functions:

• Radial shaft vibration

• Axial displacement

• Shaft eccentricity

• Speed / keyphasor signal detection

• Measurement Accuracy: ±0.1% full scale (system level)

• Dynamic Response: DC to 20 kHz

• Compliance Standards: API 670, ISO 10817-1, DIN 45670, ATEX, IECEx, CSA

Application Areas

The PR6424/010-140 + CON011 system is used in continuous monitoring of rotating assets, including:

• Steam and gas turbines

• Industrial compressors

• Centrifugal pumps

• Fans and blowers

• High-speed rotating machinery in energy and process plants

FAQ

Q: What is the benefit of the 16 mm probe design?
A: It provides a balance between sensitivity and installation flexibility for medium-sized shafts (≥80 mm diameter).

Q: What does the CON011 module do in the system?
A: It converts raw eddy-current signals into standardized voltage outputs suitable for control and protection systems.

Q: Can the system operate in harsh environments?
A: Yes, the probe supports high temperature, oil exposure, and mechanical stress conditions.

Q: Is this system suitable for API 670 applications?
A: Yes, it is designed to meet API 670-based machinery protection and monitoring requirements.