Excellent PLC
Product Introduction
The Epro CON021 + PR6424/003-010 Eddy Current Sensor System is a high-performance, factory-matched proximity measurement solution widely used for displacement and vibration monitoring of rotating machinery. The system comprises the PR6424/003-010 non-contact probe with a 16 mm sensing tip and the CON021 signal converter. Designed to meet the most demanding industrial environments such as turbines, compressors, generators, and pumps, this sensor system delivers precise, stable readings for both dynamic and static measurements.
Thanks to its rugged construction and high linearity, the CON021+PR6424/003-010 is particularly well-suited for applications in harsh environments, including high-temperature zones and hazardous areas requiring ATEX compliance.
Product Specifications
| Parameter | Description |
|---|---|
| Probe Model | PR6424/003-010 |
| Converter Model | CON021 |
| Sensing Principle | Eddy current, non-contact |
| Tip Diameter | 16 mm |
| Measurement Range | ±1 mm (Total 2 mm) |
| Sensitivity (System) | 7.87 mV/μm (standard), linear proportional output |
| Output Signal | 0–20 V DC (standard), optionally 4–20 mA with special modules |
| Frequency Response | DC to 10 kHz (–3 dB) |
| Accuracy | ≤ ±1% of full-scale |
| Cable Type | Coaxial, shielded |
| Power Supply | 24 V DC nominal (18–32 V DC range) |
| Operating Temperature | Probe: –35 °C to +180 °C Converter: –25 °C to +85 °C |
| Thread Size | M14 × 1.5 (custom threads available) |
| Mounting Orientation | Axial or radial |
| Housing Material | Stainless steel (AISI 304) |
| Protection Class | IP65 (standard), IP67 (optional) |
| EMC & Safety Compliance | CE, EN 61000-6-2/4, ATEX II 2 G Ex ia IIC T4 (optional) |
| Weight | 0.32 kg |
| Matching Configuration | Probe and converter are factory matched |
Product Applications
-
Steam and Gas Turbines
Provides high-fidelity shaft displacement and vibration monitoring for early fault detection. -
Compressors and Pumps
Ensures reliability by detecting bearing degradation, shaft misalignment, and mechanical looseness. -
Power Generation Units
Integrated into turbine supervisory systems to monitor thermal expansion and dynamic movements. -
Petrochemical Reactors and Mixers
Withstands corrosive and hazardous environments with optional Ex protection. -
Industrial Fans and Blowers
Enables continuous condition monitoring to prevent unplanned shutdowns. -
Predictive Maintenance Programs
Supplies critical real-time data to SCADA and DCS systems to enable trend analysis and condition-based maintenance.
Product Advantages
-
Factory-Calibrated Accuracy
Each probe and converter pair is individually calibrated and documented for unmatched accuracy without on-site adjustments. -
Non-Contact Measurement
Eliminates mechanical wear, ideal for long-term installations in critical assets. -
High-Temperature Operation
Supports up to +180 °C at the probe, suitable for turbine bearing housings and exhaust regions. -
Wide Signal Output Compatibility
Voltage output (0–20 V) interfaces easily with most CMS systems; optional mA output adapts to 4–20 mA loops. -
Superior EMI Resistance
Fully shielded cabling and differential input design suppress noise in high-voltage or frequency-inverter areas. -
Modular and Flexible
Supports custom probe threads, mounting configurations, and integration into retrofitted machinery. -
Explosion Proof Option
Optional ATEX-certified versions available for Zone 1 and Zone 2 classified areas. -
Maintenance-Free
Durable build and stable electronics eliminate the need for periodic recalibration or servicing.
FAQ
-
Is the PR6424/003-010 interchangeable with other CON021 converters?
No. Each PR6424 probe is factory-matched with its respective CON021 converter to ensure optimal accuracy. -
What is the exact measurement range of this system?
±1 mm (total 2 mm), calibrated for high linearity across the entire range. -
Can this sensor be used for both static and dynamic measurements?
Yes, the system outputs both DC (static position) and AC (dynamic vibration) signals simultaneously. -
Is this system compatible with PLCs and DCS systems?
Yes, it outputs 0–20 V or 4–20 mA depending on configuration, directly usable by industrial controllers. -
How does temperature affect signal accuracy?
The system uses thermally compensated electronics to minimize drift across wide temperature ranges. -
Does cable length impact sensitivity?
Yes, which is why cables are factory-trimmed and calibrated—do not modify in the field. -
Can this sensor operate in hazardous (Ex) areas?
Yes, ATEX certified models are available for use in Zone 1 environments. -
What is the bandwidth of the sensor output?
The frequency response is DC to 10 kHz (–3 dB), allowing detection of low-speed and high-frequency events. -
Is the 0–20 V output signal linear throughout the range?
Yes, linearity is better than ±1% over the full calibrated span. -
Can the sensor be mounted in both radial and axial orientations?
Yes, it supports flexible mounting depending on machine layout and access constraints.
Related Models from the Same Series
| Model | Description | Range | Tip Size | Output Type |
|---|---|---|---|---|
| PR6424/001-010 | Standard range, general-purpose | ±1 mm | 16 mm | 0–20 V |
| PR6424/002-000 | Extended range for deeper shaft clearance | ±2 mm | 16 mm | 0–20 V |
| PR6424/010-040 | Short-range, ultra-linear | ±0.5 mm | 16 mm | 0–20 V |
| PR6424/012-140 | High-temperature application variant | ±1 mm | 12 mm | 0–20 V |
| PR6424/014-040 | Enhanced protection for corrosive environments | ±1 mm | 16 mm | 0–20 V |
| PR6424/01CS | Coated version with extended environmental resistance | ±1 mm | 16 mm | 0–20 V |
Popular Models from the Same Brand (Epro / B&K Vibro)
| Model | Function | Typical Use | Output Type |
|---|---|---|---|
| PR6423/005-010 | 8 mm eddy current probe | Pumps, compressors, fans | 0–20 V |
| PR6423/002-000 | Compact 5 mm probe | Small machinery, gearboxes | 0–20 V |
| MMS6312 | Monitoring and protection module | Multi-channel vibration monitoring | Digital/Relay |
| MMS6120 | Modular rack system | Central monitoring in DCS systems | Modbus/TCP |
| CON041 | Advanced converter for high-noise areas | Turbines with EMI-rich environments | 0–20 V |
| CON031 | Legacy converter, compatible with PR6423 | Older installations | 0–20 V / mA |
