Introduction
The Epro PR6423/000-040 + CON021 8 mm Eddy-Current Sensor is a premium industrial position sensing device engineered for high-precision, non-contact measurement in automation, motion control, and condition monitoring applications. Designed with Epro’s advanced eddy-current technology, this sensor delivers unparalleled linearity, repeatability, and environmental durability—ideal for demanding manufacturing systems where accuracy and uptime matter most.
Harnessing robust construction and a reliable analog output, the PR6423 series provides consistent performance across dynamic processes, making it a dependable choice for both OEMs and systems integrators seeking measurement precision and long-term stability.
Technical Specifications
| Parameter | Specification |
|---|
| Brand | Epro |
| Model | PR6423/000-040 + CON021 |
| Sensor Type | Eddy-Current Proximity Sensor |
| Nominal Sensing Distance | 8 mm |
| Output Signal | Analog 0–10 V |
| Target Material | Conductive metals (ferrous & non-ferrous) |
| Linearity | ±1 % Full Scale |
| Response Time | ≤1 ms |
| Operating Temperature | -40 °C to +125 °C |
| Protection Rating | IP67 |
| Housing Diameter | 16 mm |
| Mounting Thread | M16 × 1 |
| Connector | M12 4-pin (CON021) |
| Cable Length | Standard 2 m |
| Dimensions (Sensor) | Ø16 mm × 50 mm |
| Weight | Approx. 0.18 kg |
Applications
This sensor is engineered to excel in a wide range of industrial measurement tasks:
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Precision shaft or gear position detection
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Vibration and gap monitoring on rotating machinery
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Linear position feedback in motion systems
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High-speed production line quality control
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Robotics jigs and fixtures
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Machine tool automation and diagnostics
Its non-contact sensing principle ensures zero wear, minimal calibration drift, and high reliability even under mechanical stress.
Advantages
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Accurate Non-Contact Measurement — Provides repeatable results without mechanical wear or hysteresis.
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Fast Response and Linear Output — Ideal for dynamic systems and precise analog integration with PLCs and data acquisition systems.
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Rugged Industrial Design — IP67 housing withstands dust, moisture, and harsh operating environments.
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Broad Temperature Tolerance — Reliable performance across extreme temperature conditions.
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Standardized Connectivity — M12 4-pin connection simplifies installation and replacement.
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Versatile Integration — Compatible with most PLC analog input modules and automation platforms.
This sensor’s blend of accuracy, durability, and ease of integration makes it exceptionally suited for critical control and monitoring systems.
Technical FAQs
1. What does the 8 mm specification represent?
It is the nominal sensing gap at which the sensor provides accurate measurement to a conductive metal target.
2. What materials can be detected?
Conductive metals such as steel, aluminum, and copper.
3. What type of output signal does it provide?
An analog voltage from 0–10 V proportional to target proximity.
4. Is it compatible with standard PLC analog inputs?
Yes—0–10 V output is supported by virtually all PLC analog modules.
5. Can this sensor handle vibration and motion measurement?
Yes—fast response time and linear output make it suitable for dynamic monitoring.
6. What is the protection class?
Rated IP67 for dust and water ingress resistance.
7. Does it require calibration after installation?
No—factory calibrated for immediate use.
8. What connector type is used?
M12 4-pin connector (CON021).
9. What environmental conditions can it withstand?
-40 °C to +125 °C operating range with robust industrial sealing.
10. Can longer cable lengths be supplied?
Yes—custom cable lengths are available upon request.
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