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Epro PR6423/003-131 CON031
Epro PR6423/003-131 CON031
Epro PR6423/003-131 CON031
· Product image is representative; revision or series may vary. Contact us to request a specific version.

PR6423/003-131 CON031

8mm Eddy Current sensor

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Technical specifications for PR6423/003-131 CON031

  • Product Model
    PR6423/003-131 CON031
  • Spare Model
    PR6423/003-131
  • Product Parameters
    8mm Eddy Current sensor
  • Tariff Code
    8537101190
  • Country of origin
    Germany
  • Place of shipment
    Xiamen, China
  • Estimated Shipping Size
    17x15x4cm
  • Manufacturer
    Epro
  • Weight
    0.25 kg
  • Linear Measurement Range
    2 mm (80 mils)
  • Initial Air Gap
    0.5 mm (20 mils)
  • Deviation from best fit straight line
    ± 0.025 mm (± 1 mil)@ temperature range 0 to 45°C(+32 to +113°F)
  • Minimum Shaft Diameter
    25 mm (0.79”)
  • Target Material
    42CrMo4
  • Sensor incl. 1m Cable
    -35 to +180°C (-31 to 356°F)
  • Cable & Connector
    -35 to +150°C (-31 to 302°F)

Description

Eddy Current sensor
8 MM EDDY CURRENT
2 MM RANGE
0.5 MM AIR GAP
25 MM SHAFT DIAMETER
1 M CABLE LENGTH
-35 TO +150 DEGREE C

Information

Overview Manuals Technical notes Product Applications Step-by-Step Installation

Features:

  • Non-Contact 8 mm Eddy Current Sensing with ±1.0 mm Measurement Range
  • High Sensitivity of 8 V/mm with Wide 0–20 kHz Frequency Response
  • CON031 Signal Converter with <15 µs Rise Time & Screw-Terminal Connectivity
  • Extreme Temperature Resilience
  • Stainless Steel Construction with 2 Bar Pressure Rating & Flexible Mounting
  • Full International Standards Compliance
The EPRO PR6423/003-131 CON031 is a complete non-contact eddy current displacement and vibration measurement system engineered by Emerson for critical turbomachinery protection and condition monitoring applications.

At the core of the system is the PR6423 probe, which features an 8.0 mm tip diameter and employs the eddy current principle to detect minute changes in the gap between the probe tip and a conductive target surface (typically a steel shaft or measuring collar). The probe generates a high-frequency electromagnetic field that induces eddy currents in the target; variations in the gap distance alter the field's impedance, which is then precisely measured and converted into a proportional voltage signal.

The PR6423/003-131 CON031 EPRO 8mm Eddy Current sensor may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
EPRO PR6423/003-131 CON031 8mm Eddy Current sensor Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
The PR6423/003-131 variant is configured with an M10 × 1 thread (code "0" in the ordering matrix), no armored cable, a 55 mm sleeve length, an adapter plug at 1 m from the probe tip, a total cable length of 30 m, and an open (blunt cut) cable end for direct connection to the CON031 converter. The probe delivers a linear measuring range of ±1.0 mm for static position measurements and 0 to 500 μm peak-to-peak for dynamic vibration monitoring. Its calibrated sensitivity is 8 V/mm (203.2 mV/mil) with ±1.0% accuracy, and when combined with the CON031 converter, the system achieves a frequency response from DC (0 Hz) to 20,000 Hz (–3 dB), ensuring that both slow-roll rotor bow and high-frequency blade-pass vibrations are faithfully reproduced. The probe's nominal gap (center of measuring range) is 1.5 mm, with a linearity error of ≤±1% and a temperature drift of <<2% per 100 K on sensitivity and 200 mV per 100 K on zero point.
  • Turbomachinery Monitoring:Steam/gas/hydro turbines, compressors, pumps & blowers
  • Radial Shaft Vibration:Dynamic shaft motion in sleeve bearing machines
  • Axial Shaft Position (Thrust):Monitors thrust to prevent bearing damage
  • Shaft Eccentricity:Detects eccentricity during start-up or shutdown
  • Differential Expansion:Rotor-casing expansion difference
  • Speed/Key Phasor:Speed & key signal monitoring
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Prepare the Target Surface: Ensure the shaft measuring area complies with minimum width and tangential offset limits. The area must be clean, free of scratches, and machined smoothly to avoid electrical runout errors.
Mount the Bracket: Install a compatible probe holder or mounting bracket, such as the Emerson Model PMB021 Bracket, securely through or inside the bearing case.
Set the Initial Air Gap: Thread the sensor into the bracket until the physical distance between the PEEK sensor tip and the shaft target is exactly 0.5 mm. Use a non-magnetic feeler gauge or monitor the voltage output using a connected converter to set this reference point.

FAQs

  • What is the PR6423/003-131?

    +
    The EPRO PR6423/003-131  is a 8mm Eddy Current sensor for measuring vibration, shaft displacement, and speed in high-temperature, radioactive, or hazardous environments
  • What is the required target material?

    +
    Ferromagnetic steel (standard is 42CrMo4, AISI/SAE 4140).
  • What approvals does it have?

    +
    CE, ATEX, IEC-Ex, and CSA for hazardous areas (Intrinsic Safety).
  • What is the typical measurement range?

    +
    Most configurations have a 2.0 mm to 3.0 mm linear range. Variants like the PR6423/10R support specialized spans up to 5mm.
  • Which signal converters match this sensor?

    +
    The transducer pairs with the CON021, CON031, or CON041 eddy current signal converters.
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Disclaimer: Amikon Limited sells new and surplus products and develops channels for purchasing such products. Amikon Limited is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Amikon Limited is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. Amikon Limited is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
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