General Description
The EPRO PR9268/303-000 is a heavy-duty eddy current displacement sensor designed for extreme industrial environments, providing high-precision vibration and position monitoring in critical rotating machinery (turbines, compressors, generators).

Key Parameters
Electrical Specifications
Sensitivity: 8.0 mV/µm (standard for -000 suffix)

Measurement Range: 0 to 2.0 mm (2000 µm)

Output Signal: -2 to -20V DC (linear to gap distance)

Frequency Response: 0 to 10 kHz

Power Supply: -24V DC ±10%

Mechanical & Environmental
Probe Diameter: 11 mm

Thread Size: M14×1.5

Operating Temperature:

Sensor Head: -40°C to +175°C (short-term +200°C)

Cable/Connector: -40°C to +105°C

Vibration Resistance: Up to 25g (50Hz)

Pressure Rating: 6 MPa (60 bar)

Calibration & Target
Target Material: AISI 4140 steel (other materials require recalibration)

Linear Range: Middle 60% of full scale (~0.6–1.4mm for 2.0mm range)

Recommended Gap Voltage: -10V DC

Compatibility & Options
Cable: High-temperature mineral-insulated (5m standard)

Works With: EPRO MMS6000 monitoring systems

Compliance: API 670, ATEX (optional)

Typical Applications
Gas turbine blade tip clearance

Steam turbine shaft vibration (high-pressure sections)

Offshore compressor monitoring