• Epro PR6423/10R-040-CN 8mm Eddy Current Sensor
  • Epro PR6423/10R-040-CN 8mm Eddy Current Sensor
  • Epro PR6423/10R-040-CN 8mm Eddy Current Sensor
  • Epro PR6423/10R-040-CN 8mm Eddy Current Sensor
Product Overview The Epro PR6423/10R-040-CN is an 8 mm eddy current sensor for non-contact measurement of relative movement between a rotating machine component and the sensing probe. It is used in mach……
Epro PR6423/10R-040-CN 8mm Eddy Current Sensor
  • Epro
  • PR6423/10R-040-CN
  • 8mm Eddy Current Sensor
  • Germany
  • 8 mm
  • 0.1 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

Epro PR6423/10R-040-CN 8mm Eddy Current Sensor

Global Logistics

We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.

Epro PR6423/10R-040-CN 8mm Eddy Current Sensor

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.

Epro PR6423/10R-040-CN 8mm Eddy Current Sensor

24-hour service

We provide 7*24 hours service to our customers. We will be there whenever you need us.

Epro PR6423/10R-040-CN 8mm Eddy Current Sensor

Price advantage

All our products are priced very favorably because we have our own warehouse and supply.


Company Information
E-mail [email protected]
Mobile +8615980777398
Whatsapp +8615980777398
WeChat 15980777398

Product Overview

The Epro PR6423/10R-040-CN is an 8 mm eddy current sensor for non-contact measurement of relative movement between a rotating machine component and the sensing probe. It is used in machinery monitoring systems where shaft position, displacement, or vibration-related movement needs to be detected without mechanical contact.

The sensor is installed close to a suitable conductive target, typically a shaft or rotor surface. As the target moves relative to the probe, the electromagnetic response at the sensing tip changes. This change is used by the associated signal-conditioning electronics to produce a measurement suitable for downstream monitoring.

The PR6423/10R-040-CN can be applied to rotating equipment such as turbines, compressors, generators, motors, pumps, and other machinery where continuous shaft monitoring is required. The sensor itself forms the machine-side sensing element and normally works together with a compatible driver or signal-conditioning device.

During maintenance, the probe installation should be considered together with the target surface, mounting arrangement, cable, signal-conditioning electronics, and monitoring input. A change in the observed measurement does not necessarily indicate a failed sensor.


Technical Specifications

Parameter Specification
Manufacturer Epro
Model PR6423/10R-040-CN
Product Family PR6423 Series
Product Type 8mm Eddy Current Sensor
Primary Function Non-contact shaft position and movement measurement
System Role Eddy current displacement sensing
Sensing Principle Eddy Current
Typical Application Rotating machinery vibration and position monitoring
Sensor Head Diameter 8 mm
Weight 0.1 kg

Product Features

  • 8 mm eddy current sensing element for rotating machinery applications.
  • Provides non-contact measurement of conductive machine targets.
  • Suitable for shaft displacement and position monitoring.
  • Can be used for vibration-related measurements when integrated into an appropriate monitoring system.
  • Applicable to turbines, compressors, generators, motors, pumps, and other rotating equipment.
  • Requires compatible signal-conditioning electronics for complete measurement-channel operation.
  • Supports continuous monitoring arrangements where physical contact with the shaft is undesirable.
  • Suitable for replacement and maintenance of compatible PR6423 Series installations.

Working Principle

The PR6423/10R-040-CN uses an eddy current sensing field to detect changes in the distance between the probe tip and a conductive target. When the rotating shaft or target moves, the eddy current response changes accordingly.

The sensor output is passed to compatible signal-conditioning electronics, which process the sensor response into a usable measurement signal. The monitoring system can then evaluate the resulting information for shaft position, displacement, vibration-related movement, alarm, or protection functions.

Conductive Shaft / Target → PR6423/10R-040-CN Sensor → Signal Conditioning → Monitoring System → Alarm / Protection

The sensing result is affected by probe positioning, target geometry and surface condition, mounting stability, cable integrity, and the characteristics of the associated signal-conditioning electronics. These factors should be checked together during commissioning.


Role in an Epro Eddy Current Monitoring Architecture

The PR6423/10R-040-CN occupies the machine-side sensing layer of an eddy current monitoring system. It detects the physical relationship between the probe and conductive target, while downstream electronics handle signal conditioning and monitoring functions.

Rotating Shaft → PR6423 Sensor → Signal Conditioner / Driver → Monitoring Input → Machinery Monitoring System → Alarm / Protection

System Element Function
Rotating Shaft / Target Provides the conductive surface being monitored
PR6423/10R-040-CN Detects changes in target-to-probe distance
Signal Conditioner / Driver Processes the sensor response for downstream equipment
Monitoring Input Receives the conditioned measurement signal
Machinery Monitoring System Evaluates shaft position, displacement, or vibration data
Alarm / Protection System Generates configured warning or protective responses

The probe should be selected and installed as part of the complete measurement channel rather than as an independent monitoring device.


Industrial Applications

Application Typical Use
Steam Turbines Shaft position and displacement monitoring
Gas Turbines Rotor movement and machinery condition monitoring
Compressors Non-contact shaft displacement measurement
Generators Rotor position and movement monitoring
Large Motors Radial or axial shaft movement monitoring
Pumps Continuous rotating shaft monitoring
Turboexpanders High-speed shaft displacement measurement
Industrial Turbomachinery Continuous non-contact condition monitoring
Machinery Protection Systems Measurement input for alarm and protective functions

Installation and Maintenance

  1. Verify the complete PR6423/10R-040-CN part number before installation.
  2. Confirm compatibility between the sensor, signal-conditioning electronics, and intended monitoring system.
  3. Isolate the rotating equipment and follow the applicable site safety procedure before installation or maintenance.
  4. Inspect the probe tip for contamination, impact damage, or other physical abnormalities.
  5. Verify that the mounting arrangement allows the probe to be positioned correctly relative to the conductive target.
  6. Establish the required probe-to-target relationship according to the applicable Epro measurement-system requirements.
  7. Check probe alignment and ensure that the mounting structure remains mechanically secure during operation.
  8. Inspect the sensor cable and terminations for damage, loose connections, excessive bending, or environmental exposure.
  9. Verify the connection between the probe and its associated signal conditioner or driver.
  10. Check the sensor signal after installation and compare the measurement with expected machine operating conditions.
  11. If the signal is unstable or missing, inspect the probe position, target surface, cable, signal-conditioning electronics, and monitoring input before replacing the sensor.
  12. After replacement, perform a complete measurement-channel and machinery-monitoring functional test before returning the equipment to normal operation.

Compatible System Components

Component Function
Epro PR6423 Series Sensor Provides non-contact eddy current measurement
Signal Conditioner / Driver Processes the probe response
Sensor Cable / Extension Transfers the sensor signal to associated electronics
Monitoring Input Channel Receives the conditioned measurement signal
Machinery Monitoring System Evaluates shaft position and movement information
Alarm / Protection System Generates configured alarm or protective responses
Conductive Shaft / Target Provides the monitored target surface
Probe Mounting Hardware Maintains sensor position and alignment

Recommended Related Models

Model / Product Family Product Type Typical Application
Epro PR6423 Series 8mm Eddy Current Sensor Shaft displacement and vibration monitoring
Epro PR6423/01M-030 8mm Eddy Current Sensor Non-contact shaft measurement
Epro PR6423/01M-030+CON021 8mm Eddy Current Sensor + Signal Converter Combined measurement channel
Epro PR6423/10R-030+CON021 8mm Eddy Current Sensor + Signal Converter Combined machinery monitoring
Epro PR6423/10R-030-CN+CON021 8mm Eddy Current Sensor + Signal Converter Condition monitoring
Epro PR6423/017-030-CN 8mm Eddy Current Sensor Rotating machinery monitoring
Epro PR6423/01C-010 8mm Eddy Current Sensor Shaft displacement monitoring
Epro Eddy Current Signal Converters Signal Conditioning Equipment Sensor signal processing

Key Advantages

  • Provides non-contact sensing of conductive rotating machine targets.
  • 8 mm eddy current probe configuration for compatible PR6423 installations.
  • Suitable for shaft position, displacement, and vibration-related monitoring.
  • Can operate as the machine-side sensing element of a complete monitoring channel.
  • Applicable to critical rotating machinery and machinery protection systems.
  • Supports maintenance and replacement of compatible Epro eddy current sensor installations.

Technical FAQs

What type of target can the PR6423/10R-040-CN measure?

The sensor operates with a suitable conductive target, such as an appropriately prepared rotating shaft or rotor surface. Target characteristics and installation conditions should be considered when configuring the complete measurement channel.

Why can a mechanically secure probe still produce an abnormal measurement?

A secure mounting arrangement does not by itself guarantee a correct signal. Probe-to-target position, alignment, target surface condition, cable integrity, and signal-conditioning electronics can all influence the measurement.

Does the PR6423/10R-040-CN perform signal conditioning by itself?

The probe is the sensing element of the measurement chain. Compatible signal-conditioning electronics or a suitable driver are required to process the sensor response for use by the downstream monitoring system.

What should be checked before replacing the sensor because of an unstable reading?

First inspect the probe mounting, target surface, probe-to-target relationship, cable connections, and associated signal-conditioning electronics. If these conditions are correct, the sensor can then be evaluated as part of the complete measurement channel.



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