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Product Introduction
The Epro PR6423/013-030 + CON021 is a high-performance eddy current sensor system designed for non-contact, highly accurate monitoring of shaft displacement, vibration, and position in rotating machinery. With a standard 8mm probe diameter and paired with the versatile CON021 converter, this model belongs to the well-established PR6423 series by Epro (a brand under Emerson).
Tailored for critical industrial applications like turbines, compressors, and motors, this sensor is essential for vibration monitoring and protection in condition-based maintenance systems. The PR6423/013-030 variant features a 3-meter cable, making it suitable for medium-distance installations without sacrificing signal integrity. It is often integrated with Epro’s MMS monitoring systems (e.g., MMS 6000/3000), offering a reliable solution for early fault detection and machinery diagnostics.
Product Specifications
| Parameter | Details |
|---|---|
| Model Number | PR6423/013-030 + CON021 |
| Sensor Type | Eddy Current Displacement/Vibration Sensor |
| Measurement Principle | Non-contact, electromagnetic eddy current |
| Sensing Range | 0 – 2 mm (typical) |
| Sensor Head Diameter | 8 mm |
| Converter Model | CON021 (for signal conditioning and system compatibility) |
| Sensitivity | Approx. 7.87 mV/μm (±2%) |
| Frequency Response | DC to 10 kHz |
| Linearity Range | ±1 mm (centered) |
| Target Material | Preferably AISI 4140 steel or equivalent conductive metal |
| Output Signal | Voltage or current output depending on converter configuration |
| Operating Temperature (Sensor) | -35°C to +180°C |
| Storage Temperature | -40°C to +200°C |
| Protection Class | IP68 (sensor) |
| Shock Resistance | 100 g, 11 ms duration |
| Vibration Resistance | 20 g peak, 10 – 2000 Hz |
| Sensor Material | Stainless Steel |
| Electrical Isolation | >100 MΩ |
| Certification | CE, ATEX Zone 0/1 (with compatible accessories), IECEx |
| Weight | 0.22 kg |
Product Applications
-
Steam and Gas Turbines
Measures radial and axial shaft vibrations to ensure reliability and prevent catastrophic failures. -
Centrifugal Compressors
Enables real-time monitoring of rotor displacement, aiding in surge prevention and predictive diagnostics. -
Industrial Motors and Generators
Detects shaft misalignment, unbalance, and bearing wear before they escalate. -
Petrochemical Pumps and Fans
Suitable for harsh, high-temperature, and explosive environments with ATEX-certified compatibility. -
Gearboxes and Heavy Machinery
Provides precision displacement measurement for machine protection and alignment verification. -
Hydroelectric Turbines and Marine Propulsion Units
Offers rugged durability and dependable measurements in challenging outdoor or submerged installations.
Product Advantages
-
Highly Accurate Non-Contact Sensing
Avoids physical wear and ensures consistent performance throughout the product lifecycle. -
Compact 8mm Probe for Versatile Installation
Fits easily into constrained spaces in high-density machinery layouts. -
Excellent Environmental Durability
Withstands high temperatures, vibration, and immersion, meeting IP68 standards. -
Real-Time Monitoring Integration
Compatible with MMS6000/MMS3000 and other Epro or third-party monitoring systems. -
ATEX & IECEx Certified for Hazardous Areas
Safe for use in explosive or flammable industrial zones with proper system configuration. -
Stable Output & Linear Performance
Maintains reliable signal over long periods without recalibration, reducing maintenance costs. -
Quick & Secure Mounting
Threaded or flange mounting options allow for robust installation on various machine housings. -
Extended Lifespan
Industrial-grade construction ensures performance longevity even under extreme use. -
Pre-calibrated Factory Output
Ships with factory-set sensitivity, reducing field setup time and improving measurement consistency. -
Flexible Cable Length Options
Standard and custom cable lengths accommodate diverse plant layouts.
Frequently Asked Questions (FAQ)
-
What is the main difference between the PR6423/013-030 and other PR6423 variants?
The “030” in the part number denotes a 3-meter pre-attached cable length, ideal for mid-range installations. -
Can this sensor be used in high-temperature areas?
Yes, the sensor operates reliably up to +180°C, and the CON021 converter is typically installed in a cooler area. -
Is CON021 necessary for the sensor to work?
Yes, CON021 is the signal conditioning unit that converts raw sensor data into standardized output signals. -
What kind of equipment does this sensor support?
It supports turbines, compressors, fans, motors, and other high-speed rotating machinery. -
How does the sensor get mounted?
Via threaded or flanged fittings on machine bearing housings or shaft casing areas. -
Can this be integrated with non-Epro monitoring systems?
Yes, the output from the CON021 can be connected to compatible third-party systems (typically 4–20 mA or voltage signals). -
How often should the sensor be recalibrated?
Under stable conditions, it typically requires no recalibration over several years. -
What certifications does the sensor system hold?
It is certified for CE, ATEX (Zone 0/1 with accessories), and IECEx environments. -
Is the cable replaceable in the field?
No, the cable is factory-integrated to ensure signal integrity. Field splicing is not recommended. -
How is signal noise or EMI handled?
The system is highly shielded and grounded to minimize electromagnetic interference (EMI) and noise.
Related Models in the PR6423 Series
| Model | Description | Probe Diameter | Cable Length | Application |
|---|---|---|---|---|
| PR6423/010-010 + CON021 | Standard 8 mm probe with 10 m cable | 8 mm | 10 m | Turbines, compressors |
| PR6423/005-010 + CON021 | Short sensor probe, high-density equipment | 8 mm | 10 m | Compact rotating machinery |
| PR6423/002-030 + CON021 | 5 mm probe with 3 m cable, high-temp compatibility | 5 mm | 3 m | Pumps and compact turbines |
| PR6423/004-010 + CON021 | Axial displacement monitoring in vertical machines | 8 mm | 10 m | Vertical shaft applications |
| PR6423/012-040 + CON021 | Long-range displacement sensor with 4 m cable | 8 mm | 4 m | High-speed rotor monitoring |
| PR6423/014-050 + CON021 | Extended probe, designed for deeper shaft access | 8 mm | 5 m | Deep-set bearing housings |
Popular Models from Emerson (Epro)
| Model | Product Type | Application | Output Type | Remarks |
|---|---|---|---|---|
| MMS6312 | Rack-based vibration monitoring | Gas/Steam turbines | Analog/Digital | Part of MMS6000 platform |
| PR9268/203-000 | Velocity sensor | Low-frequency rotating machines | Piezoelectric | Suitable for slow-speed applications |
| MMS3120/022-100 | 2-channel monitoring module | General rotating equipment | Voltage | Compact DIN rail mounting |
| PR6424/010-010 | High-temperature displacement sensor | Hot sections in turbines | Eddy Current | Works with CON041 converter |
| CON041 | Converter for PR6424 series | Signal conditioning | 4–20 mA/Voltage | Integrates PR6424 to monitoring units |
| MMS6110 | Diagnostic vibration module | Turbine condition diagnostics | Mixed | Dual-channel analysis support |
