Epro PR6423/003-040+CON021 8mm Eddy Current Sensor

The Epro PR6423/003-040 + CON021 eddy current sensor system is a precision-engineered solution developed for demanding industrial environments that require accurate, non-contact displacement and vibration measurement. This model belongs to Epro’s trusted PR6423 series and is paired with the CON021 converter module, forming a complete proximity probe system widely utilized in rotating machinery protection and condition monitoring systems.

The “003” version in the series is known for its mechanical and thermal stability, making it particularly suitable for elevated temperature environments and long-term monitoring. The sensor has an 8mm diameter probe tip, a 4-meter cable length, and delivers high-resolution displacement data essential for the continuous monitoring of turbines, compressors, motors, and other high-speed rotating equipment.

Compatible with Epro’s MMS series monitoring systems and other standard vibration interfaces, the PR6423/003-040+CON021 system is ATEX-certified for use in hazardous areas and is built to withstand vibration, oil contamination, and electromagnetic interference.

Product Specifications

Product Applications

The PR6423/003-040+CON021 is built for a variety of advanced industrial monitoring applications where precision and reliability are critical. Key applications include:

• Turbine Shaft Vibration Monitoring

  Ensures early detection of imbalance, misalignment, or bearing wear in high-speed turbines.

• Compressor Radial and Axial Position Measurement

  Tracks shaft position and movement, helping to avoid damage from excessive thrust or displacement.

• Motor and Generator Health Assessment

  Enables long-term trending and predictive maintenance of rotating electrical machines.

• Gearbox Condition Monitoring

  Identifies gear wear or imbalance conditions that could result in catastrophic failure if left unchecked.

• OEM Machinery Integration

  Embedded in custom-designed equipment for OEMs seeking robust vibration measurement capabilities.

• Hazardous Area Monitoring

  Deployed in ATEX Zone 1 environments due to its explosion-proof design.

Product Advantages

• High Temperature Capability

  The PR6423/003 variant is designed for thermal resilience up to 180°C at the probe tip, making it suitable for hot zones around turbines and compressors.

• Non-Intrusive Design

  The non-contact sensing method ensures zero mechanical wear and low maintenance requirements over the sensor’s life cycle.

• Modular System Architecture

  Easy replacement of probe or converter independently, with no need for full system recalibration.

• Exceptional Linearity and Repeatability

  Ensures high-accuracy output under real industrial load conditions.

• Robust Materials

  Stainless steel housing and PEEK insulation resist corrosive media, oil, and abrasive particles.

• Versatile Compatibility

  Seamless integration with legacy and modern monitoring systems, both from Epro and other manufacturers.

• ATEX Certified Safety

  Fully compliant for use in hazardous environments with explosive gases or dusts.

• Compact Installation

  Suitable for limited-space installations with its slender form factor.

FAQ

1. Q: What distinguishes the “003” version of PR6423 from others?

   A: The “003” version is optimized for high-temperature applications and environments where long-term stability is critical.

2. Q: Can this sensor be submerged in oil or fluid?

   A: Yes, the sensor head is IP68 rated and can operate in oil-lubricated environments without degradation.

3. Q: What does the CON021 module do?

   A: It converts the eddy current probe’s raw signal into a linearized analog output for connection to monitoring systems.

4. Q: Is this system suitable for axial displacement monitoring?

   A: Yes, it can be used for both axial and radial measurement depending on installation geometry.

5. Q: How is the probe installed?

   A: Via threaded insertion into a sensor port, usually with an M10 × 1 or 3/8” UNF thread, depending on spec.

6. Q: Can the sensor withstand vibration during operation?

   A: Yes, it is specifically designed for continuous operation in high-vibration environments such as rotating machinery.

7. Q: What cable length options are available?

   A: This model has a 4.0-meter cable, but other lengths (e.g., 1m, 2m, 5m) are available depending on configuration.

8. Q: Is recalibration required after replacing the probe?

   A: Typically not, provided the replacement probe has identical specifications and factory calibration.

9. Q: Does it support remote monitoring systems?

   A: Yes, when connected through CON021, it outputs analog signals that can be fed into SCADA or DCS systems.

10. Q: Can it detect shaft rubbing or rotor contact events?

    A: Yes, by continuously monitoring shaft displacement, anomalies like rubbing can be detected early.