Excellent PLC
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Product Introduction
The Epro PR6423/010-040 + CON021 is a high-performance eddy current proximity sensor system designed for non-contact vibration and axial displacement measurements in industrial rotating machinery. Manufactured by Epro (now part of Emerson), the sensor offers precise, real-time data for predictive maintenance and condition monitoring of critical assets such as turbines, compressors, pumps, and motors.
This 8mm probe system includes a PR6423 proximity sensor and a matching CON021 extension cable and converter. The system is part of the trusted PR6423 series, known for its high linearity, wide frequency response, and exceptional robustness in harsh industrial environments.
With compliance to API 670 standards and seamless integration into MMS (Machine Monitoring System), this sensor package is widely adopted in power generation, oil & gas, petrochemical, and heavy industrial sectors.
Product Specifications
| Parameter | Specification |
|---|---|
| Sensor Model | PR6423/010-040 |
| Converter Module | CON021 |
| Sensor Type | Eddy Current Proximity Probe |
| Measuring Range | 0.25 mm to 2.0 mm (Typical) |
| Sensor Head Diameter | 8 mm |
| Probe Length | 40 mm |
| Sensing Material | Ferromagnetic (steel, iron alloys) |
| Output Signal | Voltage signal, ±2V or 4–20 mA (depending on system configuration) |
| System Accuracy | ±0.05 mm or better (within calibrated range) |
| Frequency Response | DC to 10 kHz |
| Operating Temperature (Probe) | -35°C to +180°C (standard version) |
| Operating Temperature (CON021) | -35°C to +85°C |
| Protection Class | IP67 (Sensor), IP65 (Connector) |
| Mounting Thread | M10x1 (standard) |
| Extension Cable Length | Typically 5 m to 10 m (customizable) |
| Material (Housing) | Stainless Steel 1.4571 (AISI 316Ti) |
| Compliance | API 670, CE, ATEX Zone 2 |
| Connection Type | 3-wire system with matching CON021 |
| Weight | 0.22 kg |
Product Applications
-
Turbomachinery Monitoring
Commonly installed on gas and steam turbines to monitor shaft vibration and displacement. -
Compressors and Expanders
Used for rotor dynamic analysis and bearing condition tracking in critical machines. -
Pumps and Motors
Enables detection of misalignment, imbalance, and early-stage mechanical failures. -
Gearboxes and Generators
Assists in monitoring gear mesh, shaft eccentricity, and mechanical looseness. -
Condition Monitoring Systems (CMS)
Integrated into MMS and SCADA systems for real-time analytics and alerting. -
Nuclear and Thermal Power Plants
Trusted for safety-critical measurements in turbines and high-speed machinery. -
Oil & Gas and Petrochemical Plants
Essential for API 670 compliance in high-value rotating asset management.
Product Advantages
-
High Sensitivity and Accuracy
Provides micron-level resolution for early detection of mechanical faults. -
Excellent Temperature Stability
Reliable performance in wide operating temperature ranges without drift. -
Robust Industrial Design
Stainless steel construction and IP67 protection make it ideal for harsh environments. -
API 670 Compliance
Fully meets global standards for vibration and displacement monitoring systems. -
Flexible Cable Length Options
Allows customized system layout to fit various installation geometries. -
Fast Response Time
Enables real-time monitoring of rapid machine dynamics and vibration events. -
Non-Contact Measurement
Minimizes wear, eliminates mechanical interference, and ensures long sensor life. -
Modular Integration
Compatible with multiple Epro and Emerson MMS systems, simplifying deployment. -
Low Total Cost of Ownership
Long lifespan and minimal maintenance requirements reduce lifecycle costs.
FAQ
-
What is the function of the CON021 module in this system?
The CON021 acts as a converter and signal conditioner, transmitting the probe signal to the monitoring system. -
Can this sensor detect both vibration and axial displacement?
Yes, it is capable of monitoring both vibration and axial shaft position in rotating machinery. -
Is the system compliant with API 670 standards?
Absolutely, the PR6423 series is designed specifically to meet API 670 requirements. -
What cable length options are available?
Common lengths range from 5 m to 10 m, but custom lengths can be provided upon request. -
Is the sensor suitable for high-temperature environments?
Yes, the standard version supports up to +180°C; higher temperature variants are also available. -
How is the sensor mounted?
It uses a threaded M10x1 or similar mounting, typically installed through a radial or axial port. -
Can the sensor be integrated into non-Epro systems?
Yes, via standard voltage or current output, it can interface with third-party vibration systems. -
What is the typical lifespan of the sensor?
With proper installation, the sensor can last over 10 years in continuous operation. -
What is the minimum shaft diameter the sensor can monitor?
Typically suitable for shafts ≥15 mm diameter; consult datasheet for detailed specs. -
Does it require recalibration?
It is recommended to verify calibration during regular machine overhauls or shutdowns.
Related Models from the Same PR6423 Series
| Model | Description | Probe Diameter | Length | Temperature Rating | Thread Type |
|---|---|---|---|---|---|
| PR6423/000-000+CON021 | Standard 8mm eddy current probe | 8 mm | 32 mm | -35°C to +180°C | M10x1 |
| PR6423/002-030+CON021 | Extended high-temp probe | 8 mm | 50 mm | -35°C to +220°C | UNF 3/8-24 |
| PR6423/003-010+CON021 | Compact probe for small radial gaps | 5 mm | 25 mm | -35°C to +180°C | M8x1 |
| PR6423/005-010+CON021 | Long-length probe variant | 8 mm | 60 mm | -35°C to +180°C | M10x1 |
| PR6423/004-010+CON021 | Short probe with enhanced shielding | 8 mm | 20 mm | -35°C to +180°C | M10x1 |
| PR6423/014-040+CON021 | Probe for thick-wall mounting applications | 8 mm | 40 mm | -35°C to +180°C | M10x1 |
Popular Models from the Same Brand (Epro / Emerson)
| Model | Description | Category | Application | Interface |
|---|---|---|---|---|
| MMS3120/022-100 | Vibration monitoring module | Monitoring System | Turbines, Compressors | 4–20 mA / Relay |
| MMS6110 | Condition monitoring rack system | Monitoring System | Multi-channel vibration | Digital/Analog |
| CON011 | Probe signal converter for PR6423 series | Signal Converter | Vibration/Displacement Systems | 3-wire Epro Probes |
| PR9268/301-000 | Vibration velocity sensor | Seismic Vibration Sensor | Pumps, Fans, Motors | Voltage Output |
| TQ403 | Tachometer sensor | Speed Measurement | Rotating Machinery | TTL/Analog |
| MMS3110/022-000 | Vibration signal processor module | Control Module | Process Machinery | Fieldbus, Relay |
