Description
Product Description
Overview
The PR6426/000-031 from Emerson’s Epro series is a high-precision eddy current displacement sensor designed for critical machinery monitoring. This non-contact proximity probe measures shaft vibration, position, and rotational speed with sub-micron accuracy. It is commonly integrated with the AMS 6500 Protection System for steam turbines, compressors, gas turbines, and pumps, ensuring reliable machinery diagnostics in demanding industrial environments.
Technical Features
High Sensitivity and Accuracy
Robust Construction
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Tip Diameter: 8 mm standard for 6426 series
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Mounting Thread: M10x1 for secure installation
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Cable Configuration: Rugged, integrated cable; length and connector defined by “000-031” variant
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Resistant to oil, water, and industrial lubricants
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Stable performance across wide temperature variations
Environmental Specifications
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Operating temperature range: -35°C to +150°C
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Pressure-tolerant probe tip for high-pressure turbine housings
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Protection class: IP66/IP68 depending on installation
Signal Output
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Works with compatible signal converters/drivers
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Converts displacement into proportional voltage (e.g., -2V to -18V) or 4–20 mA signal for monitoring systems
Technical Specifications Table
| Feature |
Specification |
| Measurement Principle |
Non-contact Eddy Current |
| Target Material |
Ferromagnetic steel (standard) |
| Typical Measuring Range |
0–2 mm or 0–4 mm depending on application |
| Operating Temperature |
-35°C to +150°C |
| Protection Rating |
IP66 / IP68 |
| Compatible Systems |
Emerson AMS 6500, Epro MMS series |
| Tip Diameter |
8 mm |
| Mounting Thread |
M10x1 |
| Output Signal |
Voltage or current proportional to displacement |
Applications
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Radial shaft vibration monitoring
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Axial thrust position measurement
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Shaft rotational speed detection (RPM)
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Eccentricity and shaft bow detection during startup
FAQ
Q: Can this sensor measure both radial and axial shaft movements?
A: Yes, the PR6426/000-031 is suitable for radial vibration and axial thrust monitoring.
Q: Is it compatible with non-ferromagnetic shafts?
A: Standard calibration is for ferromagnetic steel; for non-ferrous materials, custom calibration may be required.
Q: What is the typical measuring range?
A: Depending on the tip and system setup, the range is typically 0–2 mm or 0–4 mm.
Q: Can it withstand high-temperature environments?
A: Yes, the sensor maintains accuracy up to 150°C and is designed for industrial turbine housings.
