PR6426/010-140+CON021 | Emerson EPRO Eddy Current Probe & Proximitor Assembly

PR6426/010-140 paired with CON021 is a factory-calibrated complete eddy current transducer system by Emerson EPRO, designed for turbine supervisory instrumentation (TSI) and large rotating machinery protection. This 32mm proximity probe assembly features an extended linear range, mainly used for measuring rotor axial thrust displacement, thermal expansion, shaft position and low-frequency radial vibration on steam turbines, gas turbines and large compressors in power, oil & gas and petrochemical plants.

The full set consists of PR6426/010-140 eddy current probe, armored extension cable and CON021 proximitor signal converter. Adopting non-contact eddy current induction principle, it measures clearance variation without touching the rotating metal shaft. This model /010-140 variant is specially configured with 2 V/mm sensitivity and ±4 mm static linear range, ideal for applications requiring larger gap monitoring compared to standard ±1.5mm PR6426 probes.

Key Features

• Non-contact eddy current measurement, no mechanical wear on rotating rotor surface
• 32mm probe tip diameter, M18×1.5 mounting thread for heavy-duty turbine installation
• System sensitivity 2 V/mm, static linear measuring range ±4 mm for large displacement monitoring
• CON021 proximitor converts gap variation into stable linear negative voltage output for TSI/PLC/DCS
• Frequency response DC to 10kHz, suitable for static rotor position and dynamic vibration measurement
• Hermetically sealed stainless steel probe housing, IP67 protection grade for oily, dusty and high-temperature plant environments
• High resolution ≤0.1μm, low long-term drift, excellent repeatability for safety interlock protection
• Probe continuous operating temperature: -35℃ ~ +180℃, withstand short-time peak temperature excursions
• Factory matched and calibrated pair: PR6426/010-140 + CON021, guaranteed linearity and sensitivity
• Fully compatible with EPRO MMS6000, MMS6100 series and Emerson AMS 6500 condition monitoring systems
• Compliant with API 670 machinery protection standard

Technical Specifications

Model: PR6426/010-140 + CON021 Brand: EPRO (Emerson) Type: Eddy current proximity transducer full assembly Probe Tip Diameter: 32 mm Mount Thread: M18×1.5 Measurement Principle: Non-contact eddy current induction Sensitivity: 2 V/mm (±1.5%) Static Linear Measuring Range: ±4 mm Frequency Response: DC ~ 10 kHz Probe Operating Temperature: -35℃ ~ +180℃ Probe Protection Grade: IP67 Proximitor Model: CON021 CON021 Power Supply: -24 VDC nominal, operating range -23V ~ -32V DC Output Signal: Linear negative voltage output proportional to gap Resolution: ≤0.1 μm System Composition: PR6426/010-140 probe + armored extension cable + CON021 proximitor Target Material: Ferromagnetic and non-ferromagnetic metal shaft surfaces Measured Parameters: Axial thrust displacement, rotor thermal expansion, shaft position, radial vibration, shaft eccentricity

Applications

• Power generation: Steam turbine & gas turbine axial displacement and rotor expansion TSI monitoring
• Oil & gas: Centrifugal compressors, expanders and large process pumps thrust position protection
• Petrochemical: Critical rotating machinery health monitoring, alarm and safety trip interlock
• Heavy industry: Large fans, blowers and high-speed rotating equipment large-range shaft position measurement
• Machinery protection systems: Long-gap rotor monitoring for large turbo machinery safety protection

Why Choose PR6426/010-140+CON021

EPRO PR6426/010-140 is the extended-range version of PR6426 series 32mm eddy current probes. Unlike the 8V/mm ±1.5mm standard variants, this model with 2V/mm and ±4mm linear range is selected for turbine thrust and expansion measurement where larger working clearance is required.

Only factory matched probe and CON021 proximitor can maintain the calibrated sensitivity. Mismatched combinations lead to measurement error and risk machine trip faults. We supply original new PR6426/010-140+CON021 complete transducer sets with full inspection report and factory calibration certificate, global air and sea shipping available. We also accept inquiries for other PR6426 probe codes and CON021 proximitors with different suffix options. Contact us for datasheet, dimensional drawing and formal quotation.

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FAQ

Q: What is included in PR6426/010-140 + CON021 set?

A: Complete factory calibrated eddy current transducer assembly: PR6426/010-140 32mm proximity probe, armored extension cable and CON021 signal proximitor.

Q: What is the difference between PR6426/010-140 and PR6426/010-010?

A: PR6426/010-140: 2V/mm sensitivity, ±4mm static linear range, M18×1.5 thread, for axial displacement & thermal expansion. PR6426/010-010: 8V/mm sensitivity, ±1.5mm linear range, M10×1 thread, mainly for radial shaft vibration monitoring.

Q: Can CON021 work with other PR6426 probe part numbers?

A: CON021 is compatible with PR6426 series probes, but each full part number must be used as factory matched pair. Cross pairing will change sensitivity and cause measurement deviation.

Q: Can you provide datasheet and calibration certificate?

A: Yes, datasheet and factory calibration documents can be provided on request for original new units.

PR6426/000-010+CON021

Our products are widely used in CNC mechanical metallurgy, petroleum and natural gas, and petrochemical industries,Chemical industry, paper and printing, textile printing and dyeing, machinery, electronic manufacturing, automobile manufacturing,Plastic machinery, electricity, water conservancy, water treatment/environmental protection, municipal engineering, boiler heating, energy, power transmission and distribution.The quoted price is not the actual price. Please contact the shopkeeper before placing the order to confirm the price and delivery time!!!

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