Product Overview

The Emerson EPRO PR6426/00 functions as a high-precision, non-contact sensing element for advanced machinery protection. This 8mm eddy current probe monitors relative shaft vibration, radial displacement, and axial position in high-speed rotating assets. It serves as a primary input for EPRO MMS6000 and AMS6500 monitoring systems, providing critical data to prevent catastrophic mechanical failure. We supply this unit as 100% Brand New and Factory Sealed, guaranteeing original manufacturer specifications for your turbines, compressors, and gearboxes.

Technical Specifications

The PR6426/00 maintains signal linearity and high sensitivity in demanding industrial environments.

Engineering Advantages

• Frictionless Signal Acquisition: The eddy current measurement principle eliminates physical contact with the shaft. This prevents mechanical wear and allows for continuous monitoring at surface speeds that would destroy contact-based transducers.

• Thermal Resilience: The probe housing and integrated cable withstand extreme temperatures up to 180 °C. This durability permits installation deep within steam turbine housings and near hot-end bearing pedestals where standard sensors fail.

• Aggressive Media Protection: The stainless steel body and specialized tip material resist degradation from synthetic turbine oils, moisture, and high-pressure environments. This ensures long-term signal stability in oil-flooded bearings.

• High EMI Resistance: Advanced shielding within the probe assembly rejects electromagnetic interference from surrounding high-voltage equipment. This ensures your vibration data remains accurate and free from the electrical noise generated by nearby motors or generators.

FAQs

• Does the PR6426/00 require an external driver?

  Yes. Like all passive eddy current probes, the PR6426/00 requires a signal converter (driver), such as the EPRO CON021 or CON011. The converter provides the necessary excitation voltage and translates the return signal into a standardized voltage (typically 0-10V or 4-20mA) for the monitoring rack.

• How do I ensure the probe is correctly gapped during installation?

  You must monitor the DC "Gap Voltage" at the signal converter while threading the probe into its mount. For most EPRO systems, adjust the probe position until you reach a stable -10V DC reading, which places the probe in the center of its linear measurement window.

• Can I replace a damaged extension cable without replacing the PR6426/00?

  Yes, provided the total electrical length (probe + extension cable) matches the system calibration (usually 5m or 10m). If the integrated cable on the PR6426/00 itself is damaged, you must replace the entire probe to maintain signal integrity and IP ratings.

• What is the significance of the 8mm tip?

  The 8mm tip is the industrial standard for most turbomachinery applications. It provides the optimal balance between measurement range (up to 2.0mm) and spatial resolution, making it suitable for both radial vibration and axial thrust monitoring.