ProductPRODUCT
Featured products
Contact Us
- Epro
- PR6424/009-101
- 16 mm Eddy Current Sensor
- Germany
- 16 mm
- 0.2 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
- 4
Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| [email protected] | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |
Product Overview
The Epro PR6424/009-101 16mm Eddy Current Sensor is a non-contact displacement and vibration sensor designed for monitoring the operating condition of critical rotating machinery. Part of the EPRO PR6424 sensor family, this product is associated with Emerson’s machinery health monitoring portfolio and is used in industrial applications where accurate shaft measurement is essential for equipment protection and condition monitoring.
Unlike contact-based measurement devices, an eddy current sensor measures the distance between its sensing tip and a conductive target without physically touching the rotating component. This measurement principle makes it suitable for monitoring shaft movement, radial vibration, axial displacement, eccentricity, and other mechanical conditions in rotating equipment.
The PR6424 series is commonly applied to steam turbines, gas turbines, hydro turbines, compressors, pumps, and industrial fans. These machines often operate continuously under substantial mechanical and thermal loads. Monitoring shaft movement provides useful information about equipment condition and can help maintenance personnel identify abnormal operating behavior.
The PR6424/009-101 belongs to the 16 mm sensor category. Its sensor head diameter is 16 mm, and the supplied product weight is approximately 0.2 kg. The sensor is designed to work with a compatible signal converter or monitoring system, which processes the sensor signal into usable measurement information.
A complete eddy current measurement system generally includes the sensor probe, the appropriate extension cable where required, and a compatible signal converter. Correct component matching is essential because cable configuration, converter type, measurement range, and calibration characteristics affect system performance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Epro |
| Manufacturer / Product Family | Emerson EPRO |
| Model | PR6424/009-101 |
| Product Type | Eddy Current Sensor |
| Sensor Series | PR6424 |
| Sensor Head Diameter | 16 mm |
| Measurement Principle | Non-contact eddy current |
| Sensitivity | 4 V/mm (101.6 mV/mil) |
| Linearity | ≤ ±1.5% |
| Static Measurement Range | ±2.0 mm |
| Dynamic Measurement Range | 0 to 1,000 μm |
| Nominal Center Air Gap | Approximately 2.7 mm |
| Long-Term Drift | Less than 0.3% |
| Target Material | Ferromagnetic steel |
| Recommended Shaft Diameter | ≥ 80 mm |
| Sensor Sleeve Material | Stainless steel |
| Cable Material | PTFE |
| Sensor Operating Temperature | Refer to the applicable PR6424 configuration datasheet |
| Weight | 0.2 kg |
| Application | Shaft displacement, vibration, position, and eccentricity monitoring |
Note: The technical values above describe the PR6424 16 mm sensor family. Exact cable length, connector, armor, body length, and suffix-specific characteristics for PR6424/009-101 should be confirmed against the product label and corresponding configuration documentation.
Function and Working Principle
The PR6424/009-101 operates using the eddy current measurement principle. It generates an electromagnetic field at the sensor tip and measures changes in that field when a conductive target approaches or moves away from the probe.
This allows the sensor to monitor shaft movement without direct mechanical contact.
1. Non-Contact Displacement Measurement
When the sensor is installed near a rotating shaft, it maintains a small operating gap between the probe tip and the shaft surface.
As the shaft moves, the distance between the sensor and the target changes. These variations influence the sensor’s electrical characteristics, producing a signal that represents the changing gap.
The measurement system can use this information to determine shaft displacement and position.
Non-contact measurement is particularly useful for rotating machinery because it avoids the mechanical wear associated with contact-based measurement methods.
2. Eddy Current Detection
The sensor generates a high-frequency electromagnetic field through its internal coil. When a suitable conductive target enters this field, eddy currents are induced in the target material.
These currents change the electrical impedance of the sensor coil. The resulting change is related to the distance between the probe and the target.
A compatible signal converter processes this change and produces an output proportional to the measured gap.
The target material is important. The PR6424 series is designed for use with ferromagnetic steel targets, and the measurement system should be calibrated for the actual shaft material and installation conditions.
3. Shaft Vibration Monitoring
Rotating shafts can experience radial movement due to imbalance, misalignment, bearing wear, looseness, or other mechanical conditions.
By continuously measuring the distance between the probe and the shaft, the PR6424 system can provide information about shaft vibration.
When appropriately installed and paired with a compatible monitoring system, the measurement can help maintenance personnel identify changes in machine vibration behavior.
4. Axial Position Monitoring
The sensor can also be applied to axial displacement measurement when installed in a suitable orientation.
Axial movement is important in turbines and other rotating machines because excessive shaft movement may indicate changes in thrust-bearing condition, rotor position, or internal mechanical clearances.
The measurement system can provide position information for machinery monitoring and protection.
5. Signal Conversion
The sensor probe is one part of the measurement system. Its electrical response must be processed by a compatible signal converter.
Converter selection depends on the sensor configuration, cable arrangement, required output, and monitoring equipment.
Compatible PR6424 system configurations may use EPRO converters such as CON011, CON021, or CON041, subject to the applicable sensor and converter specifications.
The complete sensor-cable-converter combination should be treated as a calibrated measurement chain.
Role in Industrial Machinery Monitoring Systems
The PR6424/009-101 can be used as a measurement component in machinery protection and condition monitoring systems.
In critical rotating equipment, shaft displacement and vibration measurements provide information about mechanical operating conditions. These measurements can be transmitted to monitoring equipment for display, alarm processing, trending, and protective actions.
Turbine Monitoring
Steam and gas turbines operate at high rotational speeds and require reliable monitoring of shaft behavior.
Eddy current sensors can measure shaft vibration and position without contacting the rotor. Multiple measurement points may be installed to monitor radial vibration and axial movement.
These measurements help operators assess machine condition and identify changes that require maintenance attention.
Compressor Monitoring
Industrial compressors often operate continuously in demanding process environments. Shaft vibration and displacement measurements are important for evaluating rotor stability and bearing-related conditions.
The PR6424 series can be incorporated into suitable compressor monitoring arrangements to provide non-contact shaft measurements.
Pump Monitoring
Large industrial pumps may experience vibration caused by hydraulic conditions, bearing wear, coupling problems, or mechanical imbalance.
A properly installed eddy current measurement system can provide shaft movement information for condition monitoring.
PLC and DCS Integration
The sensor itself should not be treated as a conventional PLC digital input device. It works with a compatible signal converter or machinery monitoring module.
The resulting measurement signal can then be connected to a suitable monitoring architecture, which may include a PLC, DCS, or dedicated machinery protection system.
The exact interface depends on the converter and monitoring equipment selected.
Industrial Applications
1. Steam Turbines
Steam turbines are used in power generation and industrial energy systems. Their rotating assemblies require continuous monitoring to identify abnormal shaft movement.
The PR6424 sensor can measure shaft vibration and displacement when installed with an appropriate converter and monitoring arrangement.
2. Gas Turbines
Gas turbines operate under high temperatures and demanding mechanical conditions. Monitoring rotor movement is important for evaluating equipment condition and supporting protective functions.
Eddy current sensors provide non-contact measurements suitable for properly engineered turbine monitoring systems.
3. Hydro Turbines
Hydroelectric turbines contain large rotating assemblies that require monitoring of shaft movement and vibration.
A 16 mm eddy current probe can be used in suitable measurement locations to monitor shaft behavior and support maintenance assessments.
4. Industrial Compressors
Centrifugal and other large industrial compressors may require continuous vibration and shaft-position monitoring.
The PR6424 series can provide non-contact displacement measurements that help identify changes in rotor behavior.
5. Industrial Pumps
Large pumps used in power plants, petrochemical facilities, and process industries may be monitored for shaft vibration and displacement.
The sensor can contribute to a broader condition monitoring system when correctly matched to the pump and monitoring equipment.
6. Industrial Fans
Large fans and blowers may experience imbalance, bearing deterioration, and mechanical vibration.
Non-contact shaft measurement can provide additional information for assessing operating conditions and planning maintenance.
Installation and System Integration
Correct installation is essential for obtaining reliable measurement results from the PR6424/009-101.
1. Sensor Mounting
The sensor should be installed securely using a mounting arrangement appropriate for the machine and probe configuration.
The mounting structure must resist vibration and maintain a stable probe position. Movement of the mounting bracket can introduce measurement errors that may be mistaken for shaft displacement.
The 16 mm sensor head should be positioned according to the manufacturer’s installation instructions.
2. Maintain the Correct Air Gap
The distance between the probe tip and the target surface is a critical installation parameter.
The PR6424 family has a nominal center air gap of approximately 2.7 mm. The actual setting should follow the applicable sensor and converter documentation.
Incorrect air-gap adjustment may reduce measurement accuracy or cause the signal to operate outside its intended linear range.
3. Target Surface Requirements
The sensor is designed for measurement against a suitable ferromagnetic steel target.
Shaft material, surface condition, runout, and installation geometry can affect the measurement. The measurement system should be calibrated for the actual target material and operating arrangement.
4. Cable Routing
The sensor cable should be routed according to the manufacturer’s requirements.
Avoid unnecessary mechanical stress, sharp bends, excessive tension, and routing near sources of strong electromagnetic interference.
The exact cable configuration for PR6424/009-101 should be checked before selecting extension cables or replacement accessories.
5. Signal Converter Connection
Connect the sensor to a compatible signal converter using the specified cable and connector arrangement.
The converter must match the sensor configuration. Using an incompatible converter or an incorrectly matched cable may result in inaccurate readings or unreliable operation.
6. Commissioning and Calibration
After installation, verify the sensor mounting, air gap, cable connections, converter configuration, and output signal.
Check that the measurement responds correctly to changes in the probe-to-target distance. Record the initial operating values and confirm that the monitoring system displays the expected measurement range.
Calibration and commissioning should follow the manufacturer’s procedures.
Compatible System Components
A complete PR6424 measurement installation may include several components.
| Component | Function | Integration Considerations |
|---|---|---|
| PR6424/009-101 Sensor | Measures shaft displacement and vibration | Confirm the exact sensor configuration |
| Extension Cable | Connects the probe to the converter | Match cable type, length, and connector |
| CON011 Converter | Processes the sensor signal | Verify compatibility with the specific probe configuration |
| CON021 Converter | Provides compatible signal conditioning for supported configurations | Check the applicable system documentation |
| CON041 Converter | Provides a screw-terminal converter option for supported configurations | Confirm wiring and sensor compatibility |
| Machinery Monitoring Module | Processes vibration and position measurements | Verify input characteristics and channel configuration |
| PLC | Supports machine-level control and data handling | Requires an appropriate conditioned signal interface |
| DCS | Integrates machine measurements into plant monitoring | Confirm signal type and system interface |
| Sensor Mounting Hardware | Maintains probe position | Use a mechanically stable installation |
Not every component is supplied with the sensor. Confirm the required accessories and the complete measurement-chain configuration before ordering.
Alternative Models and Replacement Considerations
The PR6424 belongs to the EPRO 16 mm eddy current sensor family. Other sensor models may appear similar but can have different sensing diameters, measurement ranges, temperature characteristics, and installation requirements.
| Alternative Model or Product Family | Replacement Considerations |
|---|---|
| Epro PR6424 Series | Related 16 mm sensor configurations; verify cable and connector suffixes |
| Epro PR6425 Series | Designed for different high-temperature measurement requirements; not automatically interchangeable |
| Epro PR6423 Series | 8 mm sensor family with different measurement and installation characteristics |
| Epro CON011 Converter | May be suitable for supported PR6424 configurations |
| Epro CON021 Converter | Confirm the required probe and cable combination |
| Epro CON041 Converter | Verify sensor compatibility and terminal configuration |
Before replacing the PR6424/009-101, check:
- Sensor head diameter.
- Full model number and suffix.
- Sensor body length and mounting thread.
- Cable length and cable armor.
- Connector type.
- Compatible signal converter.
- Measurement range and sensitivity.
- Target material and shaft dimensions.
- Operating temperature requirements.
- Monitoring system input specifications.
A sensor with the same 16 mm head diameter is not necessarily a direct replacement. The complete sensor and converter combination must be checked.
Key Advantages
Non-Contact Measurement
The sensor measures shaft movement without physical contact, avoiding mechanical wear at the sensing interface.
16 mm Sensor Head
The 16 mm sensing head is suitable for applications designed around the PR6424 probe dimensions.
High Measurement Sensitivity
The PR6424 family provides a nominal sensitivity of 4 V/mm, supporting detailed displacement measurement when paired with the correct converter.
Shaft Vibration Monitoring
The sensor can measure dynamic shaft movement and contribute to machinery condition monitoring.
Static Position Measurement
The system can also provide shaft-position information within its specified static measurement range.
Industrial Machinery Applications
The PR6424 family is designed for demanding rotating machinery applications, including turbines, compressors, pumps, and fans.
Integration with Monitoring Systems
With an appropriate converter, the sensor can be incorporated into machinery protection and condition monitoring architectures.
Technical FAQs
1. What is the Epro PR6424/009-101?
It is a 16 mm non-contact eddy current sensor designed for measuring shaft displacement, vibration, position, and related mechanical conditions in rotating machinery.
2. What is the sensor head diameter?
The sensor head diameter is 16 mm.
3. What is the weight of the PR6424/009-101?
The supplied product weight is approximately 0.2 kg.
4. What measurement principle does it use?
It uses the eddy current principle. The sensor generates an electromagnetic field, and changes in the conductive target’s distance alter the sensor’s electrical response.
5. What is the sensitivity of the PR6424 series?
The typical sensitivity is 4 V/mm, equivalent to approximately 101.6 mV/mil.
6. What is the static measurement range?
The PR6424 family has a static measurement range of approximately ±2.0 mm under its specified operating conditions.
7. Can it measure shaft vibration?
Yes. When installed with a compatible converter and monitoring system, it can measure dynamic shaft displacement and provide information for vibration monitoring.
8. Does the sensor require a signal converter?
A compatible signal converter is normally required to process the sensor response into a usable measurement output for the monitoring system.
9. Which machines can use this sensor?
Typical applications include steam turbines, gas turbines, hydro turbines, compressors, pumps, and industrial fans.
10. Can it connect directly to a PLC?
It should not be assumed to connect directly to a standard PLC input. The sensor normally works with a compatible converter or monitoring module, which provides the appropriate output interface.
11. Can another 16 mm sensor replace the PR6424/009-101?
Not automatically. Cable configuration, sensor length, connector, converter compatibility, and calibration requirements must be checked before replacement.
Procurement and Maintenance Recommendations
When purchasing the Epro PR6424/009-101, verify the complete model number and inspect the product label. The suffix is important because different PR6424 configurations may use different cable arrangements, probe lengths, and connector options.
For replacement projects, compare the new sensor with the installed unit. Check the sensor head diameter, body length, mounting thread, cable condition, connector, and converter compatibility.
If the sensor is used in a critical machinery protection system, confirm that the replacement measurement chain meets the original system requirements. A sensor-only replacement may not be sufficient if the extension cable or signal converter is also damaged or incompatible.
During routine maintenance, inspect the probe mounting, cable insulation, connectors, and signal stability. Check for mechanical damage, loose mounting hardware, contamination, and changes in the measurement baseline.
Avoid bending or pulling the cable beyond its specified limits. Follow the manufacturer’s installation and maintenance instructions when removing or replacing the sensor.
Conclusion
The Epro PR6424/009-101 16mm Eddy Current Sensor is designed for non-contact shaft displacement and vibration measurement in critical industrial rotating machinery. With a 16 mm sensor head and an approximate supplied weight of 0.2 kg, it belongs to the PR6424 family used in turbine, compressor, pump, and fan monitoring applications.
Its eddy current measurement principle allows shaft movement to be monitored without direct mechanical contact. When combined with a compatible signal converter and machinery monitoring system, it can provide useful information about shaft vibration, position, and displacement.
For procurement and replacement, verifying the complete model suffix, cable configuration, connector, and converter compatibility is essential to maintaining reliable machinery monitoring performance.