1. General Specifications
Parameter Specification
Model PR9268/301-000
Type High-Temperature Eddy Current Proximity Probe System
Application Extreme-environment shaft vibration and position monitoring
Standards API 670, ISO 7919
Certifications ATEX/IECEx (optional), SIL 2, CE
2. Sensor Specifications
Feature Details
Probe Diameter 8 mm (standard)
Measuring Range 0.5 to 3.0 mm (adjustable)
Sensitivity 8 mV/µm ±3%
Frequency Response 0 to 15 kHz (±3 dB)
Linear Range ±1.0 mm from null
Target Material AISI 4140/4340 steel (recommended)
3. Extreme Environment Performance
Parameter Value
Operating Temp. -50°C to +250°C (continuous)
+300°C (short-term)
Pressure Rating Up to 200 bar (2900 psi)
Ingress Protection IP68 (submersible)
Vibration Resistance 100 g (10-2000 Hz)
4. Electrical Specifications
Characteristic Specification
Power Supply -18 to -24 VDC
Output Signal -2 to -22 VDC (gap/vibration)
Cable Length Up to 500 m (with high-temp extension)
Connector MIL-C-5015 (gold-plated contacts)
5. Mechanical Design
Attribute Details
Probe Housing Inconel 718
Thread Type M10×1 (anti-loosening design)
Sealing Double graphite/Viton® seals
Mounting Torque 25 N·m (max)
6. Accuracy & Reliability
Metric Value
Linearity ±1% FS (full scale)
Temp. Stability ±0.03%/°C (active compensation)
MTBF >300,000 hours (@ 150°C)
7. System Components
Standard Delivery:

High-temp probe (PR9268-301)

5 m mineral-insulated cable (stainless steel sheath)

HT-1000 transducer (0-250°C rated)

Calibration certificate (NIST-traceable)

Options:

ATEX/IECEx version (Zone 0/1)

1000°C-rated ceramic cable (PR9268-HT)

8. Typical Applications
Gas turbine hot section monitoring

Nuclear reactor coolant pumps

Geothermal steam turbines

Aerospace test stands