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Product Introduction
The Epro PR6424/000-000+CON021/913-040 is a high-precision eddy current proximity sensor used primarily for non-contact vibration and displacement measurements in rotating machinery. Engineered with a 16mm probe diameter, this sensor is part of Epro’s advanced PR6424 series, known for robust design, signal stability, and long-term reliability even in harsh industrial environments.
Combined with the CON021/913-040 converter, the sensor forms a complete transducer system that translates proximity changes into linear voltage signals. This makes it ideal for integration into condition monitoring and protection systems used in turbines, compressors, pumps, and other critical rotating assets. The PR6424 is fully compatible with VM600, MMS6000, and Bentley Nevada monitoring systems, making it a highly versatile and widely adopted solution across industries.
Product Specifications
| Parameter | Specification |
|---|---|
| Model Number | PR6424/000-000+CON021/913-040 |
| Brand | Epro (by Brüel & Kjær Vibro) |
| Product Type | Eddy Current Proximity Sensor |
| Sensor Type | Non-contact displacement sensor |
| Sensor Head Diameter | 16 mm |
| Measurement Range | 0 to 4 mm |
| Linear Range | Up to 2 mm (typical) |
| Frequency Response | DC to 10 kHz |
| Sensitivity | 7.87 mV/μm ±2% |
| Probe Material | Stainless steel |
| Cable Length | Typically 5 m to 9 m (custom lengths available) |
| Connector Type | CON021/913-040 |
| Operating Temperature | -35°C to +180°C |
| Storage Temperature | -40°C to +200°C |
| Environmental Protection | IP65 (probe) |
| Vibration Resistance | 20 g, 10–2000 Hz |
| Shock Resistance | 100 g, 6 ms |
| Mounting Thread | M14 × 1.5 |
| Output Signal | Voltage, proportional to distance |
| Power Supply | Supplied through monitoring system |
| Compliance | CE, RoHS |
| Weight | 0.32 kg |
Product Applications
The Epro PR6424/000-000+CON021/913-040 sensor system is widely adopted in:
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Steam and gas turbines for shaft vibration and position monitoring
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Centrifugal compressors to detect axial and radial movement
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Pumps and motors for bearing gap and vibration measurement
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Gearboxes for gear mesh and imbalance analysis
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Rotating machinery for early fault detection and predictive maintenance
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OEM machine builders requiring high-reliability displacement sensing
The sensor plays a crucial role in machine protection, providing early warnings of mechanical degradation, misalignment, or imbalance that could lead to catastrophic failure.
Product Advantages
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Non-Contact Sensing: Accurate displacement measurement without physical contact, reducing wear.
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High Temperature Tolerance: Operates reliably up to 180°C, ideal for heavy-duty industrial environments.
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Superior Sensitivity and Linearity: Offers precise voltage output proportional to displacement.
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Robust Construction: Stainless steel housing ensures mechanical durability and corrosion resistance.
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Flexible Installation: Multiple thread sizes and cable lengths available for various mounting needs.
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Excellent Compatibility: Integrates smoothly with Epro and third-party monitoring systems.
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High Vibration Resistance: Built for harsh dynamic environments with strong vibration and shock tolerance.
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Extended Service Life: Engineered for continuous industrial operation over many years.
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Simple Integration: Easy wiring and installation reduce downtime during retrofits or maintenance.
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Certified and Safe: CE and RoHS compliant for global industrial use.
Frequently Asked Questions (FAQ)
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What is the measurement range of this eddy current sensor?
It typically measures up to 4 mm, with a linear range of about 2 mm. -
Can the PR6424 sensor be used in high-temperature environments?
Yes, it supports operating temperatures up to 180°C. -
Is this sensor compatible with VM600 systems?
Absolutely. It is fully compatible with Epro VM600 and similar systems. -
What does the ‘+CON021/913-040’ refer to?
It is the matching signal converter that works with the PR6424 probe to generate a voltage output. -
What materials is the probe made from?
The probe is built using corrosion-resistant stainless steel. -
Can the sensor withstand industrial vibration and shock?
Yes, it can tolerate vibrations up to 20 g and shock up to 100 g. -
Is this sensor suitable for hazardous areas?
Versions with appropriate certification are available for hazardous environments. Please check the specific part number. -
How is the sensor calibrated?
Each unit is factory-calibrated, and recalibration is rarely required under normal use. -
Can I extend the cable length?
Yes, different cable lengths are available up to 9 meters. -
What is the typical lifespan of this sensor in industrial use?
With proper installation, the sensor can function reliably for more than 5–10 years.
Related Models (Same Series or Compatibility)
| Model | Description | Probe Size | Temperature Range | Output Type |
|---|---|---|---|---|
| PR6424/010-010+CON021 | Eddy Current Sensor System | 5 mm | -35°C to +180°C | Voltage |
| PR6423/002-010+CON021 | Eddy Current Sensor with small probe | 8 mm | -35°C to +120°C | Voltage |
| PR6424/012-100+CON041 | High-temp sensor system with CON041 | 11 mm | Up to 250°C | Voltage |
| PR6423/005-010+CON021 | Short body, medium-range sensor | 5 mm | -35°C to +180°C | Voltage |
| PR6424/014-040+CON021 | Long reach 16 mm sensor variant | 16 mm | -35°C to +180°C | Voltage |
| PR6424/01CS+CON041 | Special coating for corrosive conditions | 11 mm | -35°C to +250°C | Voltage |
Popular Models from Epro (Same Brand)
| Model | Description | Application | Sensor Type |
|---|---|---|---|
| MMS3120/022-100 | Vibration Monitoring System Module | Turbomachinery monitoring | Monitoring Module |
| MMS6110 | Compact monitoring system for small machines | Pumps, fans, motors | Monitoring Controller |
| CON021/916-040 | Signal converter with enhanced immunity | High-noise industrial zones | Converter Unit |
| TQ402 | Transducer cable for PR6422/23 series | Cable accessory | Accessory |
| PR6422/010-010+CON021 | Compact eddy current sensor for tight spaces | Small-scale rotating equipment | Eddy Current Sensor |
| MMS6140 | Advanced protection and control module | Turbines, Compressors | Monitoring System |
