EPRO CON021+PR6423/002-001-CN Eddy Current Shaft Monitoring System

Overview

The EPRO CON021 + PR6423/002-001-CN is a high-precision eddy current measurement system designed for continuous monitoring of turbomachinery. This system combines the CON021 signal converter with the PR6423 probe, enabling accurate non-contact measurement of shaft displacement, position, eccentricity, and vibration in turbines, compressors, pumps, and fans.

System Components

EPRO CON021 Signal Converter

A high-performance module that converts eddy current probe signals into standardized analog outputs for monitoring and protection systems. Ideal for integration into rack-based monitoring platforms such as MMS 6000 and IMR 6000, it supports hot-swappable installation.

• Function: Eddy current signal conversion for shaft displacement, eccentricity, vibration, and speed/key monitoring

• Frequency Range: 0 – 20 kHz (-3 dB)

• Compatible Sensors: PR6422, PR6423, PR6424, PR6425, PR6426, PR6453

• Supply Voltage: -23V to -32V (Output: -4V to -20V), -21V to -32V (Output: -2V to -18V)

• Output Signal: Standard analog output configurable per system requirements

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

• Shock & Vibration Resistance: 5g @ 60 Hz @ 25°C

• Protection Class: IP20

• Mounting: Rack-based installation, compatible with MMS 6000 / IMR 6000

• Hot-Swappable: Yes

EPRO PR6423/002-001-CN Eddy Current Probe

A robust eddy current probe for high-accuracy non-contact measurement of shaft vibration and displacement. Designed for harsh industrial environments with extended temperature tolerance.

• Sensor Type: Eddy current displacement/vibration

• Sensor Head Diameter: 25 mm

• Sensitivity: 2 V/mm (~50.8 mV/mil)

• Linear Measuring Range: ±2.0 mm (0.079”)

• Nominal Air Gap: ~2.5 mm (0.10”)

• Accuracy: ≤ ±1.5% long-term drift

• Operating Temperature: -35°C to +180°C (short excursions to +200°C)

• Cable Temperature: Up to +200°C

• Connector: LEMO

• Weight: 0.8 kg

Key Features

• Complete eddy current monitoring chain: probe + signal converter for accurate signal processing

• High-speed response: rise time under 15 μs ensures precise dynamic measurement

• Non-contact sensing eliminates mechanical wear and enhances system longevity

• Industrial-grade durability with resistance to vibration, high temperature, and shock

• Seamless integration with MMS 6000 and IMR 6000 racks, supporting hot-swappable installation

• Localized CN compliance for use in China

Applications

Ideal for continuous monitoring of:

• Steam, gas, and hydro turbines

• Compressors and pumps

• Fans and rotating machinery requiring high-precision shaft displacement and vibration measurement

FAQ

Q: Can the PR6423 probe operate at extreme temperatures?
A: Yes, it operates continuously from -35°C to +180°C, with short excursions up to +200°C.

Q: Which systems support the CON021 converter?
A: The converter is compatible with MMS 6000 and IMR 6000 rack-based monitoring systems.

Q: Is this system suitable for non-contact measurement in high-speed turbines?
A: Yes, the combination of PR6423 and CON021 provides high-speed, high-accuracy measurements suitable for dynamic applications.