The EPRO PR6423/256-110 is a high-precision eddy current sensor for critical vibration and position monitoring. This non-contact transducer reliably measures the distance and vibration of rotating machinery like turbines, compressors, and generators. As a core component of the EPRO MMS 6000 machinery protection system, it provides essential data for predictive maintenance and operational safety.
Operating Principle and Electrical Output
This sensor operates on the eddy current principle, generating an electromagnetic field from its probe tip. When a conductive target enters this field, the system induces eddy currents which change the coil’s impedance. Consequently, the connected EPRO PR6423 converter module translates this change into a precise, linear voltage signal proportional to distance.
The PR6423/256-110 typically provides a standard output range, such as -2 to -18 V DC, for a corresponding gap variation. This high-level analog signal ensures excellent noise immunity over long cable runs back to the monitoring system.
Key Physical and Performance Specifications
The sensor features a robust, stainless steel housing designed to withstand harsh industrial environments. Its compact probe tip allows for installation in tight spaces near the measurement target. The specific suffix /256-110 defines its exact sensitivity, electrical length, and connector type.
For optimal performance, the sensor requires proper calibration with its matching CON series oscillator and CONverter unit. This ensures accurate gap-to-voltage linearity across its entire specified measurement range.
Detailed Technical Parameter Overview
The table below lists the definitive technical specifications for the EPRO PR6423/256-110 sensor.
| Parameter Category | Specification |
|---|---|
| Manufacturer | EPRO (now part of Baker Hughes) |
| Model Number | PR6423/256-110 |
| Product Series | PR 6423 / MMS 6000 |
| Sensor Type | Non-Contact Eddy Current (Displacement) |
| Primary Measurement | Vibration, Axial Position, Eccentricity |
| Operating Principle | Eddy Current / Inductive |
| Typical Output Signal | -2 to -18 V DC (Linear with gap) |
| Target Material | Electrically Conductive (e.g., Steel) |
| Standard Cable Length | Integral cable, length defined by suffix (e.g., 5m, 9m) |
| Connector | Defined by suffix (e.g., MIL-C-5015 style) |
| Probe Diameter | Typically 8mm or 11mm (varies by variant) |
| Temperature Range | -35°C to +150°C (Probe) |
| Housing Material | Stainless Steel |
| Compatible System | EPRO MMS 6000, MMS 3000, and compatible monitors |
Details
| Weight | 0.2 kg |
|---|---|
| Dimensions | 150 × 100 × 50 mm |
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