EMERSON PR6423/003-010 Eddy current sensor module

Specific parameters
Measurement characteristics
Range: ± 1.0 mm (peak to peak), corresponding to a linear working range of 0.5~2.5 mm (refer to PR6423/003-020 parameters of the same series).
Sensitivity: 0.05 V/μ m (typical value), capable of capturing sub micron displacement changes, meeting the precision monitoring requirements of key equipment such as steam turbines and compressors.
Resolution: ≤ 0.1% F.S., linearity error ≤ 1.0% (compliant with API 670 standard).
Electrical specifications
Output signal: 4-20 mA analog (superimposed vibration signal), optional RS485 digital interface (requires CON031 preamplifier).
Supply voltage: -24 V DC (from preamplifier), power consumption<100 mA.
Frequency response: 0-10 kHz (-3 dB), suitable for high-frequency vibration scenarios (such as aircraft engine bearing monitoring).
Machinery and Environment
Probe size: diameter 8 mm, threaded interface M10 × 1 (compatible with shaft diameter ≥ 25 mm).
Cable configuration: Standard 5-meter seamless armored cable (1-meter oil and waterproof section), customizable 8/10 meter length.
Working temperature: -40 ° C to+70 ° C (standard type), PR6424 series (resistant to 380 ° C) is available for high temperature scenarios.
Protection level: IP67 (dustproof and waterproof), stainless steel shell can withstand a pressure of 2 Bar.

Product Performance
High reliability design
Zero wear life: Non contact measurement avoids mechanical friction and has a lifespan that is more than three times longer than contact sensors in high-speed rotating equipment.
Anti interference capability: low impedance coil+temperature compensation circuit, signal error<± 1% in complex industrial environments.
Explosion proof certification: After installing safety barriers, it supports Ex ib IIC T6/T4 explosion-proof rating and is suitable for hazardous areas.
Intelligent diagnostic function
Health status monitoring: Real time display of signal quality, disconnection or overheating warning through the front-end LED indicator light.
Self calibration technology: 42CrMo4 standard material has been used for calibration at the factory, and no additional debugging is required for installation.
Flexible scalability
Multi parameter monitoring: The same sensor can simultaneously measure parameters such as shaft vibration, displacement, and speed, reducing equipment redundancy.
Modular integration: Supports seamless integration with Emerson MMS 6000 monitoring system or third-party PLC/DCS.

application area
Power industry
Steam turbine/generator: Monitor shaft vibration, eccentricity, and bearing wear to prevent blade breakage or bearing burnout.
Gas turbine: Measure shaft displacement and thermal expansion to optimize mechanical stability during start stop processes.
petrochemical industry
Compressor/pump: Real time monitoring of the clearance between the impeller and the casing to avoid seal failure or mechanical failure caused by vibration.
Reaction kettle stirring shaft: Predicting fatigue cracks in gearbox gears through vibration analysis to achieve preventive maintenance.
Metallurgy and Mining
Rolling mill drive shaft: Monitor the axis deviation during the rolling process, improve the flatness of the plate and the service life of the equipment.
Crusher spindle: Determine bearing status through vibration trend analysis to reduce downtime.
Transportation
Rail transit: Monitor the vibration of subway axle box bearings and provide early warning of fatigue damage.
Ship power: Measure the vibration and displacement of the propulsion shaft to ensure navigation safety.