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PR6423/015-020

Purpose:
Ultra-sensitive high-temperature displacement sensor for precision monitoring in extreme environments.

Key Features:

20.0 mV/µm sensitivity (0-0.5mm range)

High-temp operation: -40°C to +200°C (peak 250°C)

Ruggedized design:
✓ 20g vibration resistance
✓ 4MPa pressure rating
✓ M10×1 threaded probe

Applications:
✔ Gas turbine blade clearance
✔ Nuclear pump monitoring
✔ Precision machinery in high heat

Requirements:
• Mineral-insulated cable (>105°C)
• Signal conditioner recommended

Compliance: API 670, ASME B31.1

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Key Parameters
Electrical Specifications
Sensitivity: 20.0 mV/µm (factory-calibrated, -020 suffix)

Measurement Range: 0 to 0.5 mm (500 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: 8 mm

Thread Size: M10×1

Operating Temperature:

Sensor Head: -40°C to +200°C (short-term +250°C)

Cable/Connector: -40°C to +105°C (HT cable required >105°C)

Vibration Resistance: 20g (50Hz)

Pressure Rating: 4 MPa (40 bar)

Calibration & Target
Target Material: AISI 4140 steel (default)

Linear Range: Middle 60% of full scale (~0.15–0.35mm for 0.5mm range)

Recommended Gap Voltage: -10V DC

Compatibility
Cable: Mineral-insulated high-temp (5m standard)

Monitoring Systems: EPRO MMS6000

Standards: API 670, ASME B31.1

Typical Applications
Gas turbine blade tip clearance

Nuclear reactor coolant pumps

Precision high-temp machinery