Description

EMERSON PR6423/00R-010+CON031

Its core function is to accurately measure parameters such as rotating shaft radial vibration, shaft displacement and shaft eccentricity based on the eddy current effect. The proximitor amplifies, filters and linearizes the original signal, then outputs standard signals to connect to DCS/PLC systems. It provides reliable data support for equipment condition assessment, fault early warning and predictive maintenance, and is widely used in oil & gas, water treatment, manufacturing and other industrial fields.

1. Basic Information & Functions

Part Number: EMERSON PR6423/00R-010+CON031 (Sensor + Proximitor Assembly Kit)Product Type: Non-contact Eddy Current Measuring Assembly, including PR6423/00R-010 eddy current sensor and CON031 proximitorBrand: EMERSON, EPRO Series

• High-precision Non-contact Measurement: Based on the eddy current effect, the probe of PR6423/00R-010 sensor generates a high-frequency magnetic field. By detecting the reverse magnetic field variation induced by eddy current on the measured metal shaft surface, it realizes non-contact measurement of shaft radial vibration, shaft displacement, shaft eccentricity and other parameters. It avoids wear on the tested equipment, features high measurement accuracy and good linearity, and can capture tiny parameter changes.
• Signal Processing & Conversion: As a signal processing unit, the CON031 proximitor receives the original signal transmitted by the sensor, performs amplification, filtering and linearization, and converts it into standard analog signals for seamless connection to DCS/PLC systems to realize real-time data acquisition and analysis.
• Flexible Mounting Adaptation: The sensor supports M10×1 or 3/8”-24-UNF threaded mounting. The probe fits shafts with diameter ≥25mm and requires a measured ring height of only 25μm. It can be flexibly deployed according to on-site installation requirements and adapted to rotating machinery of various specifications.
• Wide Signal Compatibility: Standard 4–20mA / 0–10V analog output, with optional RS485 digital interface. It can be seamlessly integrated into existing industrial control systems without major equipment modification, reducing integration costs.
• Reliable Protection & Anti-interference: The proximitor is built-in with overcurrent and overvoltage protection to effectively prevent module damage and improve overall system reliability. The whole assembly adopts anti-electromagnetic interference design, operates stably in complex industrial electromagnetic environments, and ensures the accuracy and stability of measured data.
• Harsh Environment Adaptation: The sensor is made of temperature-resistant and corrosion-resistant materials with good environmental adaptability. It can operate stably in a wide temperature range and meet long-term operation demands in harsh industrial scenarios such as oil & gas and water treatment.

2. Technical Specifications

3. Hardware Design & Structural Details

• PR6423/00R-010 Sensor: Consists of probe, connecting cable and connector. The probe integrates a high-frequency coil to generate high-frequency magnetic field and sense eddy current variation. The connecting cable adopts shielded design to effectively reduce electromagnetic interference and ensure stable transmission of original signals. The firm connector facilitates connection with the proximitor and adapts to industrial on-site installation.
• CON031 Proximitor: Compact design with built-in signal amplification circuit, filter circuit, linear processing circuit and protection circuit. The left side is sensor signal input terminals for receiving original signals; the right side is standard signal output terminals for connecting DCS/PLC systems. Panel status indicators display real-time operating status and signal abnormalities for convenient on-site commissioning and troubleshooting.

4. Working Principle & Signal Flow

1. Assembly Deployment & Power Supply: Install the PR6423/00R-010 sensor by thread near the rotating machinery shaft to maintain a proper gap between probe and shaft. Connect the CON031 proximitor to 24VDC power supply and link it to the sensor via dedicated cable to complete deployment and power supply.
2. Non-contact Measurement: The sensor probe generates a high-frequency magnetic field after power-on. When the rotating shaft approaches the magnetic field, eddy current is induced on the shaft surface. The reverse magnetic field generated by eddy current changes the impedance of the probe coil. The sensor detects impedance variation in real time and converts it into original electrical signal transmitted to the proximitor.
3. Signal Processing: The CON031 proximitor receives the original electrical signal, amplifies it via internal amplifier circuit, filters high-frequency noise through filter circuit, and converts non-linear signal into linear signal by linear processing circuit to ensure output accuracy and stability.
4. Signal Output & System Connection: The proximitor converts processed signals into standard 4–20mA / 0–10V analog signals (optional RS485 digital signals), which are transmitted to DCS/PLC system through output terminals for real-time collection, display and analysis of shaft vibration, displacement and other parameters.
5. Status Monitoring & Protection: The proximitor real-time monitors its own operating status and sensor signals. It triggers timely alarm via panel indicators in case of overcurrent, overvoltage or signal abnormality, and activates internal protection to cut off output, preventing assembly damage and system fault escalation and ensuring safe equipment operation.

5. Features & Advantages

• Non-contact Measurement, No Wear & Tear: Adopts eddy current effect for non-contact measurement without direct contact with rotating shaft, avoiding equipment wear, extending service life of equipment and components, eliminating measurement error caused by contact detection, and improving measurement precision.
• Accurate Measurement & Reliable Data: Measurement accuracy up to ±0.5% with good linearity, capable of capturing tiny shaft vibration and displacement changes. The proximitor features high signal processing precision and effective noise filtering, ensuring stable and accurate output and providing solid data support for equipment condition evaluation.
• Flexible Adaptation & Easy Integration: Multiple threaded mounting options for the sensor to fit various shaft sizes. Standard signal output of the proximitor enables seamless DCS/PLC connection with optional RS485 interface. No major system modification required, featuring low integration cost and high efficiency.
• Harsh Environment Resistance & High Reliability: Temperature and corrosion resistant sensor materials, wide-temperature operation and anti-electromagnetic interference performance for the whole assembly. Built-in overcurrent/overvoltage protection of the proximitor enables long-term stable operation in harsh industrial environments such as oil & gas and water treatment with low failure rate.
• Convenient Maintenance & Controllable Cost: Modular design allows separate disassembly and replacement of sensor and proximitor without overall assembly replacement. Clear status indication of the proximitor facilitates on-site commissioning and troubleshooting, reducing maintenance time and cost.

6. Application Scenarios

• Oil & Gas Industry: Condition monitoring of rotating equipment such as compressors and pump units in refineries, petrochemical plants and oil & gas pipelines; monitors shaft vibration and displacement to ensure stable equipment operation, reduce downtime and improve operational efficiency.
• Water Treatment Industry: Monitoring operating status of rotating machinery such as pumps and fans in water treatment facilities; optimizing process control and ensuring stable and efficient water treatment procedures.
• Manufacturing & Metallurgy Industry: Monitoring operating status of rotating shaft components on production line machinery, rolling mills and other equipment; detecting potential faults in a timely manner to avoid equipment damage and production interruption.
• Food & Beverage Industry: Monitoring various rotating machinery in production processes to ensure precise temperature and pressure control, maintain mechanical stability, and guarantee production continuity and product quality.
• Other Industries: Real-time condition monitoring for steam turbines, generators, fans, centrifuges and other rotating machinery in power plants; providing data support for predictive maintenance and reducing operation and maintenance costs.