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Introduction
The Epro PR6423/014-121 is a precision eddy-current displacement sensor designed for non-contact measurement of shaft vibration and relative displacement in rotating machinery. This sensor is widely used in turbine, compressor, and motor monitoring systems where high accuracy, reliability, and robustness are required. With an 8 mm sensor head diameter, it is optimized for medium-range applications, providing stable performance even in harsh industrial conditions such as high temperature, oil contamination, and electromagnetic interference.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | PR6423/014-121 |
| Sensor Type | Eddy-Current Displacement Sensor |
| Sensor Head Diameter | 8 mm |
| Weight | 0.1 kg |
| Measurement Range | ±2 mm (typical, depending on system) |
| Frequency Response | Up to 10 kHz |
| Operating Temperature | -35 °C to +180 °C |
| Sensitivity | Nominal 8 mV/μm |
| Linearity | ≤ ±1 % of full-scale range |
| Power Supply (via driver) | -24 VDC typical |
| Compatible Drivers | Epro PR6426, CON021, CON041 |
| Cable Length Options | Standard 5 m, extendable up to 9 m |
| Insulation Resistance | >100 MΩ |
| Protection Class | IP65 |
Applications
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Steam turbines, gas turbines, and hydro turbines
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Compressors, pumps, and industrial fans
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Generators and high-speed motors
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Gearboxes and rotating machinery in petrochemical plants
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Power plants and refineries for predictive maintenance systems
Advantages
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Non-contact measurement for minimal wear and maintenance
-
High temperature tolerance, suitable for hot machinery zones
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Robust design resistant to oil, dirt, and electromagnetic noise
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Excellent linearity and sensitivity ensuring precise readings
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Compatibility with industry-standard drivers like CON021 and CON041
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Compact and lightweight (0.1 kg) for flexible installation
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Stable long-term performance with high reliability in continuous operation
FAQ
Q1: What is the typical sensitivity of the PR6423/014-121?
A1: The nominal sensitivity is 8 mV/μm, providing accurate displacement measurements.
Q2: Can this sensor operate in high electromagnetic environments?
A2: Yes, it is designed with shielding that allows stable operation in areas with strong electromagnetic interference.
Q3: What is the frequency response range of this sensor?
A3: The sensor supports vibration measurements up to approximately 10 kHz.
Q4: Which driver modules are compatible with the PR6423/014-121?
A4: It is commonly used with Epro drivers such as CON021, CON041, and PR6426.
Q5: Does cable length affect sensor performance?
A5: Yes, cable length should be matched with driver calibration. Standard lengths are 5 m and can be extended up to 9 m.
Q6: What type of output does the sensor provide?
A6: It delivers an analog voltage output proportional to displacement, typically mV/μm.
Q7: Is the sensor suitable for continuous monitoring systems?
A7: Yes, it is specifically engineered for continuous online monitoring of critical rotating machinery.
Q8: What is the maximum allowable operating temperature?
A8: The sensor can withstand up to +180 °C in operation.
Q9: How does the sensor achieve high measurement accuracy?
A9: Through linear response characteristics, high-quality probe materials, and precise driver calibration.
Q10: Can the PR6423/014-121 detect both vibration and shaft displacement?
A10: Yes, it measures both relative shaft vibration and static shaft displacement relative to the probe.
Related Models
| Model | Description |
|---|---|
| PR6423/002-030 | 5 mm eddy-current sensor, short range |
| PR6423/010-031 | 5 mm sensor, extended temperature range |
| PR6423/012-120 | 8 mm sensor, alternative calibration |
| PR6423/018-121 | 11 mm sensor, longer range |
| PR6423/022-140 | 25 mm sensor, high gap measurement |
| PR6426/010-000 | Compatible driver module |
Popular Models from the Same Brand
| Model | Type/Description | Key Feature |
|---|---|---|
| PR6423/014-121 | Eddy-Current Sensor | 8 mm probe, medium range |
| PR6426/000-000 | Driver Module | For PR6423 series sensors |
| CON021 | Monitoring Driver | Universal vibration sensor driver |
| CON041 | Advanced Driver | Enhanced diagnostic functions |
| PR6425/010-000 | 5 mm Eddy-Current Sensor | Compact design, high accuracy |
| PR6423/018-121 | Eddy-Current Sensor | 11 mm probe, larger range |
| PR6423/022-140 | Eddy-Current Sensor | 25 mm probe, heavy-duty |
| PR9268/203-000 | Vibration Transducer | High-sensitivity applications |
