Excellent PLC
| Company Information | ||||||||
| sales@xmjzjsgs.com | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Overview
The Epro PR6426/000-030 + CON021/916-200 is a high-precision eddy current displacement sensor system, specifically designed for non-contact measurement of shaft vibration, axial position, and eccentricity in rotating machinery. This system integrates the PR6426 probe, which features a 32 mm tip diameter, with the CON021/916-200 converter, forming a robust sensor assembly capable of operating in extreme industrial conditions, including high temperature and harsh electromagnetic environments.
The sensor operates based on the eddy current principle, detecting displacement by generating an electromagnetic field and measuring changes in impedance as conductive materials approach or move away. The sensor is part of the Epro PR6426 series, which is widely adopted in API 670-compliant vibration monitoring systems across critical industries such as power generation, petrochemicals, steel production, and marine propulsion.
Product Specifications
| Parameter | Description |
|---|---|
| Sensor Model | PR6426/000-030 |
| Converter Model | CON021/916-200 |
| Measurement Principle | Eddy current (non-contact displacement) |
| Measuring Range | 0 – 4 mm |
| Sensor Head Diameter | 32 mm |
| Linearity Error | < ±1% of full scale (within calibrated range) |
| Frequency Response | 0 – 10 kHz (-3 dB) |
| Output Signal | 4 – 20 mA (via CON021 converter) |
| Operating Temperature (Probe) | -35°C to +180°C |
| Operating Temperature (Converter) | -35°C to +85°C |
| Storage Temperature | -40°C to +100°C |
| Pressure Resistance (Probe) | Up to 100 bar |
| Material (Probe Body) | Stainless Steel (usually 1.4571 or equivalent) |
| Connector Type | MIL-style or high-temperature variants (depending on version) |
| Cable Type | Special coaxial cable with high-temperature insulation |
| Cable Length (Standard) | 5 m, 7 m, 9 m, or customized (factory calibrated with probe/converter) |
| Protection Class | IP65 / IP68 (depending on installation and sealing) |
| Compliance Standards | API 670, CE, ATEX (on request) |
| Weight | 0.92 kg |
Applications
The Epro PR6426/000-030 + CON021/916-200 sensor system is optimized for demanding industrial applications where precise, real-time shaft position and vibration data is essential. It is particularly well-suited for:
-
Turbomachinery vibration monitoring
-
Axial position measurement in steam/gas turbines
-
Radial shaft displacement tracking in compressors and motors
-
Eccentricity monitoring in generators
-
Condition-based maintenance systems in rotating equipment
-
Integration into safety shutdown and protection systems
Common industries that deploy this sensor include:
-
Power Generation (thermal, nuclear, hydro)
-
Oil & Gas (upstream and downstream)
-
Chemical & Petrochemical Plants
-
Steel and Metals Processing
-
Marine and Offshore Engines
-
Pulp and Paper Mills
Its rugged design and proven reliability make it a preferred choice for long-term monitoring in high-value machinery assets.
Advantages
-
High-Accuracy Eddy Current Technology: Ensures precise, reliable non-contact measurements over long periods without degradation.
-
Wide Operating Range: Withstands extreme temperatures, pressure, and environmental conditions without signal loss.
-
API 670 Compliance: Ensures it meets global industry standards for rotating machinery protection.
-
Fully Isolated Output: Analog 4–20 mA signal minimizes interference and supports integration with DCS or PLC systems.
-
Modular System Design: Probe, cable, and converter are matched and calibrated, allowing simplified on-site replacement and flexibility.
-
Durability and Longevity: Built from corrosion-resistant materials and rated for high mechanical stability.
-
Factory Calibration: Guarantees measurement linearity and accuracy across defined ranges.
-
Global Field Proven: Thousands of successful installations across decades of operation history.
Frequently Asked Questions (FAQ)
-
Is the PR6426/000-030 sensor suitable for use in hazardous areas?
Yes, when paired with appropriate ATEX or IECEx-certified hardware, it can be used in hazardous environments. -
Can the sensor be used for both axial and radial displacement measurements?
Absolutely. It’s suitable for axial position, radial vibration, and eccentricity measurement depending on installation. -
What is the maximum temperature the probe can withstand?
The probe itself can operate continuously at up to +180°C. -
Is field recalibration required?
The system is factory-calibrated; field recalibration is generally not required unless components are changed. -
What kind of materials can the sensor detect?
The sensor is optimized for conductive materials like steel or other ferromagnetic alloys. -
Is the system compatible with third-party monitoring equipment?
Yes, the 4–20 mA output is universally compatible with most monitoring systems, PLCs, and recorders. -
Can I replace the cable separately?
No, probe, cable, and converter are calibrated as a matched set. Changing one component requires full recalibration. -
What is the IP rating of the sensor?
IP65 to IP68, depending on the sealing and connector type used during installation. -
How long is the typical service life of the sensor system?
Over 10 years in stable environments, assuming proper installation and grounding. -
Can this sensor be used in high-vibration environments?
Yes, it is specifically designed to monitor vibration and operates reliably in high-vibration machinery.
Related or Same Series Models
| Model | Tip Diameter | Measuring Range | Temperature Range | Application Focus |
|---|---|---|---|---|
| PR6426/000-010+CON021 | 8 mm | 0–2 mm | -35°C to +180°C | Standard radial displacement |
| PR6426/000-020+CON021 | 16 mm | 0–3 mm | -35°C to +180°C | Medium shaft monitoring |
| PR6426/000-050+CON041 | 50 mm | 0–5 mm | -35°C to +180°C | Large shaft or thrust position |
| PR6426/000-040+CON021 | 25 mm | 0–4 mm | -35°C to +180°C | Turbo generator vibration monitoring |
| PR6426/000-060+CON021 | 60 mm | 0–6 mm | -35°C to +180°C | Heavy industry eccentricity tracking |
| PR6426/010-030+CON011 | 32 mm | 0–4 mm | -35°C to +350°C | High-temperature turbine applications |
Popular Models from Epro (Brand-Wide)
| Model | Type | Function | Notes |
|---|---|---|---|
| MMS6110 | Monitoring System | Shaft vibration monitoring system | Modular, API 670-compliant |
| PR6423/002-030+CON021 | Eddy Current Sensor | 8 mm probe for radial measurement | High temp capability, matched set |
| MMS3120/022-100 | Monitoring Module | Multi-channel vibration + speed | Integration with CONsensors |
| PR9268/201-100 | Velocity Sensor | Seismic (velocity-based) vibration sensing | Suitable for casing vibration |
| CON041 | Signal Converter | Converter for PR6426 series sensors | 4–20 mA analog output |
| MMS6120 | Monitoring System | Axial position & shaft vibration monitoring | Compact design with multiple inputs |
