PLCs, Power Supplies & Others

The EPRO PR6423/296-110 is a high-performance, non-contact sensor engineered for critical machinery protection. This robust 11mm eddy current sensor is part of the industry-respected PR 6400 series, developed by the German manufacturer EPRO. It provides unparalleled precision in monitoring vibration and axial position on the largest industrial assets. Operators therefore depend on it for safeguarding high-value equipment like steam turbines and large centrifugal compressors.

Designed for extreme environments, this sensor delivers unmatched stability under severe operational stress. Moreover, it seamlessly integrates with advanced monitoring systems such as the EPRO MMS 6000 series. Consequently, maintenance teams gain access to exceptionally reliable data for predictive analytics. This capability is crucial for preventing catastrophic failures and optimizing maintenance schedules in demanding sectors.

Detailed Technical Specifications

The PR6423/296-110 is defined by its superior technical parameters, which ensure accurate and reliable measurement. For ultimate precision, always refer to the official EPRO calibration certificates and installation manuals.

Core Technical Specifications:

• Sensor Type: 11mm Heavy-Duty Eddy Current Displacement Probe

• Probe Diameter: 11.0 mm

• Standard Cable Length: 1.1 meters (1100 mm)

• Linear Measuring Range: 4.0 mm (±2.0 mm from electrical zero)

• Typical Sensitivity: -4.0 V/mm (final value depends on calibration)

• Output Voltage Range: -2.0 V to -18.0 V DC

• Frequency Response: 0 to 10,000 Hz

• Probe Operating Temperature: -35 °C to +150 °C

• Electrical Connector: Industrial-grade, secure locking connector

• Cable Construction: High-temperature, chemical-resistant PFA with double shielding

• Housing Material: Stainless steel (AISI 316 equivalent)

• Approximate Weight: 350 grams (complete probe assembly)

• Internal Components: Single sensing coil, epoxy-encapsulated for life

Engineering Excellence and Operational Principle

This sensor operates on the fundamental yet precise eddy current measurement principle. Its probe generates a high-frequency electromagnetic field at the tip. A conductive target, such as a turbine shaft, then interacts with this field by inducing circular currents. Subsequently, the connected monitoring system detects minute changes in the field’s energy. These changes provide a linear, high-resolution voltage signal that directly corresponds to the distance to the target.

Furthermore, the large 11mm probe body and 4mm range offer exceptional durability and installation tolerance. The fully welded, hermetically sealed housing contains no moving parts or internal energy storage devices. Additionally, all operational power is supplied directly from the compatible EPRO monitor, such as the MMS 6120. This passive design guarantees long-term signal stability, minimal thermal drift, and decades of maintenance-free service in the most challenging conditions.

Details