PR6424/003-110 + CON021 EPRO 11mm Eddy‑Current Probe M12 Thread 5‑Meter Armored Cable, Non‑Contact Shaft Displacement Sensor for Radial Vibration, Axial Thrust & Differential Expansion Monitoring
PR6424/003-110 + CON021 EPRO 11mm Eddy‑Current Probe M12 Thread 5‑Meter Armored Cable, Non‑Contact Shaft Displacement Sensor for Radial Vibration, Axial Thrust & Differential Expansion Monitoring - Image 2
PR6424/003-110 + CON021 EPRO 11mm Eddy‑Current Probe M12 Thread 5‑Meter Armored Cable, Non‑Contact Shaft Displacement Sensor for Radial Vibration, Axial Thrust & Differential Expansion Monitoring - Image 3
PR6424/003-110 + CON021 EPRO 11mm Eddy‑Current Probe M12 Thread 5‑Meter Armored Cable, Non‑Contact Shaft Displacement Sensor for Radial Vibration, Axial Thrust & Differential Expansion Monitoring - Image 4
PR6424/003-110 + CON021 EPRO 11mm Eddy‑Current Probe M12 Thread 5‑Meter Armored Cable, Non‑Contact Shaft Displacement Sensor for Radial Vibration, Axial Thrust & Differential Expansion Monitoring - Image 5

PR6424/003-110 + CON021 EPRO 11mm Eddy‑Current Probe M12 Thread 5‑Meter Armored Cable, Non‑Contact Shaft Displacement Sensor for Radial Vibration, Axial Thrust & Differential Expansion Monitoring

  1. PR6424/003-110 + CON021 – M12 thread, 11mm probe, 5m armored cable complete set (Target Model)
  2. PR6424/003-030 – M12 thread, 11mm probe, 3m armored cable
  3. PR6424/010-110 – M10 thread, 11mm probe, 5m armored cable
  4. PR6424/004-010 – 11mm probe, 1m armored cable
  5. PR6423/003-030 – classic M10 8mm standard vibration probe
  6. CON011 – alternative compatible preamplifier for PR6424 probe
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Description

PR6424/003-110 + CON021 EPRO 11mm Eddy‑Current Probe M12 Thread 5‑Meter Armored Cable, Non‑Contact Shaft Displacement Sensor for Radial Vibration, Axial Thrust & Differential Expansion Monitoring

 

Product Application

PR6424/003‑110 belongs to EPRO PR6424 series 11mm medium‑size eddy‑current probe. The /003 stands for M12×1 mounting thread, -110 means total 5m integrated armored cable with factory fitted LEMO plug, matched with CON021 preamplifier to form a complete calibrated measurement chain. Widely deployed on steam turbines, gas turbines, centrifugal compressors, blowers and large pumps in petrochemical, oil & gas and thermal power plants. Typical measuring parameters: X/Y orthogonal radial vibration, axial thrust position, differential expansion and shaft eccentricity. Gap voltage signal from CON021 is sent to Emerson CSI6500 TSI monitoring modules such as A6110, A6120 for machinery alarm and trip protection; vibration waveform data is uploaded to AMS predictive maintenance platform. The full set meets API 670 turbomachinery protection specification.

PR6424003-110+CON021

Product Specifications

  • Part Number: PR6424/003-110 + CON021
  • Brand: Emerson EPRO, Made in Germany
  • Probe Tip Diameter: 11 mm ceramic tip
  • Mounting Thread: M12×1 thread sleeve
  • Total Armored Cable Length: 5 m, stainless steel armored
  • Cable End: Factory assembled LEMO quick connector for direct plug‑in to CON021
  • Linear Measuring Range: ±4 mm
  • Sensitivity: 2 V/mm
  • Nominal Center Static Air Gap: approx. 5.5 mm
  • Probe Head Operating Temperature: -35 ℃ ~ +180 ℃
  • Preamplifier Model: CON021, powered by -24 VDC
  • Output Signal: Gap voltage signal to TSI monitor via BNC coaxial cable
  • Compatible Monitoring Rack: CSI 6500, legacy MMS6000
  • Certification: API 670, CE, ATEX / IECEx hazardous zone approval
  • Probe Protection: IP67, oil‑resistant for bearing housing installation

 

Core Technical Parameters

  • Measuring Range: ±4 mm
  • Sensitivity: 2 V/mm
  • Frequency Response: DC ~ 10 kHz (-3dB)
  • Probe Housing: Stainless steel M12×1 threaded body
  • Cable: Stainless steel armored + PTFE high temperature insulation, lubricating oil resistant
  • CON021 Working Temperature: -25 ℃ ~ +70 ℃
  • Minimum ferromagnetic target shaft diameter: ≥45 mm
  • Diagnostics: Probe cable break / short‑circuit detection (probe + + TSI module)
  • Gross Weight of full set: approx. 1.1 kg

 

Recommended Matching Models (8 Models)

Complete TSI system spare parts for this probe assembly:

  1. A6110 Dual‑Channel Relative Shaft Vibration Monitor (CSI6500)
  2. A6120 Axial Thrust / Differential Expansion Monitor
  3. A6312 Speed & Keyphasor Module
  4. A6740 Relay Output Module for Alarm & Trip
  5. CSI 6500 Rack & Backplane
  6. BNC coaxial signal cable ( to TSI rack)
  7. AMS Suite Machinery Health Software
  8. Dynamic vibration calibrator for measurement loop calibration

 

Product Features

✅ 11mm Medium‑Size Ceramic Tip with M12×1 Thread M12 mounting thread design, different from M10 thread PR6423 series, fits special custom probe bracket for bearing housing. Stable electromagnetic field for medium‑diameter rotating shafts.

✅ Wide ±4mm Linear Measurement Range Suitable for axial thrust and differential expansion measurement with large shaft displacement, not limited to radial vibration only.

✅ 5 Meter Pre‑assembled Armored Cable + LEMO Plug 5m armored cable with LEMO connector at probe end, no on‑site cable termination work, convenient for long‑distance wiring from bearing housing to preamplifier junction box.

✅ Each probe‑preamplifier pair is calibrated before delivery to guarantee 2 V/mm sensitivity accuracy.

✅ High Temperature & Oil Resistant Assembly Probe head can continuously withstand 180℃; armored PTFE cable resists lubricating oil corrosion inside bearing housing.

✅ Built‑in Cable Fault Diagnosis Cooperated with CSI6500 TSI module to detect probe cable open circuit and short circuit, report sensor failure alarm in time.

✅ Hazardous Zone Certified Suitable for Zone 2 / Class I Div 2 explosive gas area installation in petrochemical plants.

PR6424003-110+CON021

Installation Guidelines

  1. Install rigid probe bracket on bearing housing, confirm bracket thread matches M12×1 probe sleeve, avoid bracket resonance at unit operating speed.
  2. Screw PR6424/003‑110 probe into bracket, adjust static gap between probe tip and shaft target surface to around 5.5 mm, lock the lock nut.
  3. Route 5m armored cable, avoid sharp bending and heavy extrusion; fasten LEMO plug tightly to preamplifier.
  4. Mount preamplifier in junction box away from high‑temperature radiation.
  5. Connect signal output to front BNC port of CSI6500 TSI module with dedicated coaxial cable.
  6. Power on CSI6500 rack, read gap voltage value on AMS workstation and confirm probe works within linear interval.
  7. Perform dynamic test during turbine / compressor startup.
  8. Verify vibration value, displacement reading and alarm trip logic before putting machinery protection online.

 

Maintenance Instructions

Daily Maintenance Monitor real‑time gap voltage and measurement value in AMS software. Check bracket looseness, armored cable oil erosion and LEMO connector oil contamination.

Periodic Maintenance Every 6–12 months: Inspect probe tip scratch and oil sludge contamination. Calibrate the whole probe‑‑TSI measurement loop with dynamic calibrator. Back up CSI6500 project configuration.

Fault Maintenance

  • Gap voltage out of linear range: Check bracket loosening, shaft runout or probe collision.
  • No measurement signal: Inspect LEMO connector locking status, cable breakage and power supply.
  • Signal drift: Clean oil sludge on probe tip or replace probe assembly.
  • ESD protection required during replacement; do not disassemble probe head and housing.

Long‑Term Operation Tips Respect cable minimum bending radius. Prevent lubricating oil long‑term immersion on LEMO connector. Regularly check bracket resonance under working speed.

 

Brand Same‑Series Models (6 Models)

EPRO PR6424 11mm eddy‑current probe variants:

  1. PR6424/003-110 + CON021 – M12 thread, 11mm probe, 5m armored cable complete set (Target Model)
  2. PR6424/003-030 – M12 thread, 11mm probe, 3m armored cable
  3. PR6424/010-110 – M10 thread, 11mm probe, 5m armored cable
  4. PR6424/004-010 – 11mm probe, 1m armored cable
  5. PR6423/003-030 – classic M10 8mm standard vibration probe
  6. CON011 – alternative compatible preamplifier for PR6424 probe

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