EPRO PR6426/000-110 CON021 Eddy Current Sensor – Obsolete PR6426 Series Spare Part

Technical Dossier

Product Details And Specifications

EPRO PR6426/000-110 CON021 Eddy Current Sensor – Obsolete PR6426 Series Spare Part

RFQ support for obsolete parts: Send the model number, required quantity and destination so DriveKNMS can confirm sourcing options before quotation.

Technical Specifications

Note: Electrical parameters such as sensitivity, gap range, and frequency response are model-configuration-specific. Contact us with your full system documentation for cross-verification before ordering.

Solving the Discontinued Hardware Crisis

The PR6426 series was engineered for precision proximity measurement in industrial rotating machinery protection — a function that cannot be approximated by a generic substitute without full system recalibration. These sensors operate as part of a tightly coupled measurement chain: sensor, extension cable, and signal conditioner (such as the CON021 module) are calibrated as a matched set. Replacing one element with a non-original component invalidates the calibration and, in safety-critical applications, the protection system certification.

The supply window for this part is closing. OEM channels have been exhausted. Secondary market availability is declining as installed base units age out. Facilities that have not yet established a strategic spare inventory for their EPRO sensor chains are operating with an unquantified replacement risk.

Condition & Reliability Assurance

Every PR6426/000-110 CON021 unit processed by DriveKNMS passes a structured 5-step quality protocol before it is offered for sale:

• Step 1 – Visual and mechanical inspection: Housing integrity, connector condition, and cable jacket assessment. Units with physical damage to the probe tip or connector body are rejected.
• Step 2 – Electrolytic capacitor assessment: Internal conditioning circuitry is inspected for capacitor aging, leakage, or bulging — a primary failure mode in sensors stored beyond five years.
• Step 3 – Pin and contact corrosion check: All electrical contacts are examined under magnification. Oxidation or corrosion on signal pins is a disqualifying condition.
• Step 4 – Firmware and configuration verification: Where applicable, CON021 conditioner module firmware version and configuration state are verified against known-good references.
• Step 5 – Functional output test: Sensor output characteristics are verified against published EPRO specifications using calibrated test equipment.

Units that do not pass all five steps are not listed for sale. Condition grade (new surplus, tested serviceable, or refurbished) is disclosed at the time of quotation.

Key Features for System Maintenance

• Drop-in replacement: The PR6426/000-110 CON021 is a direct physical and electrical replacement for the same part number in existing EPRO installations. No mechanical modification is required.
• No reprogramming required: When replacing a like-for-like unit within a matched sensor chain, the monitoring system does not require reconfiguration. Calibration verification is recommended but system engineering is not.
• Avoids engineering reconstruction costs: Substituting a non-original sensor into an EPRO protection system requires full recalibration of the measurement chain and, in many jurisdictions, re-certification of the protection function. Using the original part number eliminates this cost entirely.
• Long-term asset protection: Maintaining a two- to three-unit strategic spare inventory for critical sensor positions is the lowest-cost insurance available against unplanned production loss from sensor failure.

Should I buy more than one unit?
For any sensor position classified as critical — meaning its failure triggers a machine trip or production stop — a minimum of one cold spare per installed position is the standard industry practice. Given the declining availability of PR6426 series components, purchasing two to three units now is a measurably lower-cost decision than sourcing under emergency conditions in 12 to 24 months.