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EPRO PR6423/018-010 CON021 Eddy Current Displacement Sensor
The EPRO PR6423/018-010 CON021 by Emerson is a legacy, non-contact Eddy Current Displacement Sensor engineered for precision machine protection and condition monitoring. Operating with a precise 0.001 mm resolution and ±0.05% accuracy, this 8mm proximity sensor converts raw static and dynamic shaft displacement into dependable telemetry data for MMS 3000/6000 racks. Natively compliant with API 670 and ATEX certified for hazardous zones (Ex ib II C T6/T4), it is a reliable replacement choice for monitoring critical bearings, shaft vibration, and structural cracks in heavy industrial equipment.
Description
Product Overview
The EPRO PR6423/018-010 CON021 (managed under the Emerson industrial automation portfolio) is a non-contact, high-precision eddy current displacement sensor and signal converter. This industrial-grade proximity system is purpose-built for critical machine protection, specifically monitoring the static and dynamic shaft displacement of high-speed rotating machinery. By establishing a localized electromagnetic field, the sensor translates micro-level structural changes into standard industrial metrics to track axial thrust, radial vibration, shaft eccentricity, and oil film thickness in real time.
Advanced Capabilities and Functional Benefits
- Non-Contact Proximity Telemetry: Utilizes eddy current principles to measure shaft distances down to the micrometer without making physical contact, eliminating mechanical wear and ensuring continuous, decades-long field life.
- Micro-Level Accuracy: Features a specialized 8mm tip construction that delivers an ultra-fine 0.001 mm (1 µm) resolution paired with a ±0.05% measurement accuracy, providing trusted data for automated emergency trip systems.
- Comprehensive Machine Diagnostics: Capable of diagnosing complex mechanical stress states, including structural micro-cracks, thrust bearing abrasion layers, and precise oil film boundary deviations.
- Explosive Zone Certification: Natively ATEX and IECEx certified under the Ex ib II C T6/T4 intrinsic safety standard, allowing direct deployment inside hazardous oil, gas, and petrochemical zones.
- Severe Environment Hardening: Features a rugged chassis rated to survive severe physical impacts up to 50g pk-pk, permanent high-frequency vibration up to 20g pk-pk, and a wide thermal operating range of -40°C to +85°C.
- MMS System Compatibility: Engineered for seamless architectural integration into Emerson MMS 3000 and MMS 6000 machinery monitoring racks, routing high-speed signal data back to enterprise DCS architectures.
Technical Specifications
| Parameter | Specification Details |
|---|---|
| Brand / Brand Family | EPRO / Emerson |
| Model / Part Number | PR6423/018-010 CON021 |
| Module Classification | Non-Contact Eddy Current Proximity Sensor |
| Sensor Tip Diameter | 8 mm Base |
| Measurement Range | 0 to 0.2 mm |
| Measurement Resolution | 0.001 mm (1 micron) |
| Linearity / Accuracy | ±0.05% of Full Scale |
| Operating Temperature | -40°C to +85°C (-40°F to +185°F) |
| Relative Humidity Limits | 0 to 95% RH (Non-condensing) |
| Vibration Resistance | Up to 20g pk-pk |
| Shock/Impact Resistance | Up to 50g pk-pk |
| Physical Outer Dimensions | 20.0 cm x 18.0 cm x 4.0 cm |
| Net Hardware Weight | 0.20 kg (approx. 200 grams) |
| Hazardous Certification | ATEX / IECEx Intrinsic Safety (Ex ib II C T6/T4) |
| Compliance Norms | API 670, DIN 45670, ISO 10817-1 |
| Lifecycle Status | Legacy Platform (Discontinued by manufacturer Dec 31, 2018) |
Industrial Applications
- Turbine Shaft Vibration Tracking: Real-time monitoring of radial and axial shaft positioning on massive steam and gas turbine assemblies to prevent catastrophic casing contact.
- High-Speed Industrial Compressors: Continually validating oil film thickness and thrust bearing degradation inside heavy-duty gas distribution line compressors.
- Large Pumping Machinery: Detecting early-stage shaft eccentricity and rotor imbalances within massive water treatment and chemical refinery pumping loops.
- Preventative Maintenance Controls: Providing high-fidelity wave signal conversions to track microscopic structural defects and cracking anomalies on heavy plant machinery components.
Additional information
| Weight | 0.2 kg |
|---|---|
| Country of Origin | USA |
| Dimension | 20 x 18 x 4 cm |
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