EPRO PR6423/001-030+CON021 Eddy Current Proximity Sensor System

Product Description

The EPRO PR6423/001‑030 + CON021 system is a high-precision eddy current proximity measurement solution designed for non-contact monitoring of rotating machinery. The combination of the PR6423 sensor with its 8 mm probe and the CON021 converter ensures reliable measurement of shaft vibration, displacement, eccentricity, and rotational speed, fully compliant with API 670 machine protection standards.

Applications

• Radial and axial shaft displacement and vibration monitoring

• Steam turbines, gas turbines, centrifugal compressors, pumps, and large fans

• Integration into machine protection and condition monitoring systems for power generation, petrochemical, and heavy industrial plants

System Integration

• The PR6423 sensor transmits raw eddy current signals to the CON021 converter

• CON021 converts signals into a standardized ±10 V output compatible with DCS/PLC or dedicated monitoring platforms (e.g., MMS 6000, AMS 3000)

• Rugged stainless steel sensor housing with armored cable ensures durability in high-vibration and high-temperature environments

Technical Specifications – PR6423/001‑030 Sensor

• Sensor Head Diameter: 8 mm

• Measuring Range: 0–2 mm (extendable to ~3 mm)

• Sensitivity: 8 V/mm (~203 mV/mil)

• Frequency Response: 0–10 kHz (–3 dB)

• Nominal Air Gap: ~1.0 mm

• Static Accuracy: ≤ ±1.5 %

• Target Material: Standard ferromagnetic steel (42CrMo4)

• Operating Temperature: –35 °C to +180 °C

• Short-Term Thermal Excursion: Up to 200 °C (<4 h)

• Max Cable Temperature: 200 °C

• Pressure Resistance: 10,000 hPa (145 psi)

• Shock Resistance: 5 g @ 60 Hz

• Cable Length Options: Typically 5–10 m depending on variant

• Output Signal: Raw eddy current voltage

• Certification: ATEX approved

Technical Specifications – CON021 Converter

• Input: PR6423 series sensor raw signal

• Output Signal: Standardized ±10 V (configurable scaling)

• Frequency Response: Matches sensor bandwidth

• Operating Temperature: –35 °C to +85 °C

• Integration: Compatible with DCS/PLC and monitoring systems (e.g., MMS 6000, AMS 3000)

• Certification: CE, API 670 compliant

• Design: Rugged industrial converter for reliable signal conditioning

Key Features

• Complete measurement chain: sensor and converter provide ready-to-use output for monitoring systems

• Extended measurement range with 8 mm sensor head

• Non-contact operation eliminates wear and reduces maintenance

• High static and dynamic accuracy for reliable shaft monitoring

• Flexible integration via industry-standard ±10 V output

• Industrial-grade construction for continuous operation in harsh environments

FAQ

Q: Can this system measure both axial and radial displacement?
A: Yes, the PR6423/001‑030 sensor supports both radial and axial shaft monitoring.

Q: Is the CON021 converter compatible with other EPRO sensors?
A: The CON021 is designed for PR6423 series sensors and supports standardized ±10 V output integration with most monitoring platforms.

Q: What materials are compatible as sensor targets?
A: Standard ferromagnetic steels, with 42CrMo4 commonly used for turbomachinery shafts.

Q: Can the system operate at high temperatures?
A: Yes, the sensor withstands –35 °C to +180 °C, with short-term excursions up to 200 °C, and armored cabling ensures reliability.