Epro CON021+PR6424/002-130 Eddy Current Sensor System

Product Description

The PR6424/002-130 + CON021 measurement system, part of the EPRO portfolio from Emerson Electric, is designed for accurate, non-contact monitoring of shaft movement and vibration in high-speed rotating equipment. This configuration combines a 16 mm eddy-current probe with a dedicated signal converter, delivering stable and linear output signals for industrial control and protection applications.

The probe detects displacement relative to a conductive target, while the CON021 module performs signal conditioning, converting raw sensor data into a standardized voltage output. This system is suitable for integration into DCS, PLC, and turbomachinery monitoring platforms where precision and reliability are required.

System Overview

• Integrated probe and signal converter solution

• Non-contact measurement for long-term stability

• Designed for continuous operation in harsh environments

• Suitable for vibration analysis and shaft position monitoring

• Compatible with turbomachinery protection architectures

Technical Specifications

PR6424/002-130 Probe Parameters

• Model: PR6424/002-130

• Sensor Type: Eddy-current displacement probe

• Probe Diameter: 16 mm

• Measuring Range: 6 mm (extended range configuration)

• Operating Frequency: Approx. 1 kHz (sensor characteristic)

• Output Signal: Analog displacement signal (pre-conversion)

• Supply Voltage: 24 V DC (via system interface)

• Construction Material: Stainless steel housing with PTFE-insulated cable

• Protection Rating: IP67

• Weight: Approx. 0.32 kg

• Typical Uses: Displacement, vibration, and thickness measurement

CON021 Signal Converter Parameters

• Function: Signal conditioning and linearization

• Frequency Bandwidth: 0 to 20 kHz (–3 dB)

• Response Time: < 15 µs

• Power Supply Options:

• –23 V to –32 V DC (output –4 to –20 V)

• –21 V to –32 V DC (output –2 to –18 V)

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

• Mechanical Resistance: 5 g vibration at 60 Hz (25 °C)

• Housing Material: Aluminum alloy (LMgSi 0.5 F22)

• Protection Class: IP20 (panel-mounted module)

• Electrical Interfaces:

• Sensor input: LEMO locking connector

• Output/power: screw terminals (≤1.5 mm²)

• Weight: Approx. 120 g

Integrated System Performance

• Output Signal: Linear DC voltage with superimposed AC vibration component

• Measurement Functions:

• Radial shaft vibration

• Axial displacement

• Shaft eccentricity

• Keyphasor and speed signal detection

• Linearity Error: ≤ 1.0% (for 6 mm range configuration)

• Environmental Suitability:

• Probe: IP67 (resistant to dust, oil, moisture)

• Converter: IP20 (control cabinet installation)

Mechanical and Logistics Data

• Dimensions: 230 × 210 × 45 mm

• Weight: 0.86 kg

Application Areas

The PR6424/002-130 + CON021 system is widely used in condition monitoring and protection of rotating machinery, including:

• Steam and gas turbines

• Centrifugal compressors

• Industrial pumps and fans

• Electric motors and generators

• High-speed rotating systems in process industries

FAQ

Q: What is the benefit of combining the probe with CON021?
A: The converter provides signal linearization and standardized output, making the system compatible with industrial monitoring and control platforms.

Q: What type of output does the system provide?
A: It delivers a DC voltage proportional to displacement with an AC component representing vibration.

Q: Is the system suitable for harsh industrial environments?
A: Yes, the probe is IP67-rated and designed for exposure to oil, dust, and moisture, while the converter is intended for protected cabinet installation.

Q: What distinguishes this model from smaller probe systems?
A: The 16 mm probe offers a larger measurement range (up to 6 mm), making it suitable for applications requiring extended displacement monitoring.