Shaft Displacement Monitoring Solution – EMERSON PR6424/010-140 CON021 | Epro Series
Where This Product Is Used
The EMERSON PR6424/010-140 CON021 is an Epro series eddy current displacement sensor engineered for continuous, non-contact measurement of shaft radial vibration, axial position, and differential expansion in rotating machinery. It is widely deployed in:
- Steam & Gas Turbines — shaft eccentricity and radial vibration monitoring per API 670
- Centrifugal & Axial Compressors — thrust position and rotor orbit measurement
- Large Pumps & Fans — bearing proximity monitoring in petrochemical plants
- Hydro Turbines & Generators — air-gap and shaft displacement surveillance
- Paper & Steel Mill Drives — roll position and alignment feedback
- Marine Propulsion Systems — propeller shaft axial displacement
Wherever rotating shafts demand sub-micron positional accuracy and continuous online monitoring, the PR6424/010-140 CON021 is the engineer’s first choice.
Technical Specifications
| Manufacturer | EMERSON (Epro) |
| Part Number / SKU | PR6424/010-140 CON021 |
| Series | Epro PR6424 |
| Sensor Type | Eddy Current (Non-contact) Displacement Sensor |
| Probe Tip Diameter | 10 mm |
| Cable Length | 140 cm (1.4 m) |
| Extension Cable | CON021 (integrated) |
| Measurement Range | 0–2 mm (typical, target-material dependent) |
| Output Signal | –24 VDC bias, linear voltage output |
| Supply Voltage | –24 VDC (via driver/oscillator) |
| Operating Temperature | –40 °C to +120 °C (probe); –40 °C to +85 °C (driver) |
| Frequency Response | DC to 10 kHz |
| Ingress Protection | IP67 |
| Connector | Standard Epro coaxial connector |
| Weight | Approx. 280 g (probe + cable assembly) |
| Compliance | API 670, CE, RoHS |
Why Engineers Specify This Model
- Non-contact measurement — zero mechanical wear, ideal for continuous 24/7 operation in critical machinery protection systems
- 10 mm probe tip — optimized sensitivity for small-diameter shaft targets and tight installation clearances
- 1.4 m integrated cable — eliminates field-spliced connections, reducing signal noise and installation error
- CON021 driver compatibility — plug-and-play pairing with EMERSON Epro CON021 oscillator/driver for calibrated system performance
- Wide temperature range — reliable in high-heat turbine environments without signal drift
- API 670 compliant — meets machinery protection standards required by EPC contractors and end-users in oil & gas
- Drop-in replacement — fully interchangeable with existing PR6424 series installations, minimizing downtime during maintenance
Complete System Bill of Materials
For a complete shaft displacement monitoring loop, the following components are typically required:
- Probe: EMERSON PR6424/010-140 CON021 (this item)
- Oscillator/Driver: EMERSON CON021 (matched driver, sold separately)
- Monitoring Module: EMERSON 3300/16 or 3500/42 Proximitor I/O Module
- Rack/Chassis: EMERSON 3500 Machinery Protection System Rack
- Power Supply: EMERSON 3500/15 Power Supply Module
- Communication Gateway: EMERSON 3500/92 Communication Gateway (Modbus/PROFIBUS)
Contact support@konmask.com for bundle pricing on complete monitoring system assemblies.
Compliance & Industry Standards
- API 670 — Machinery Protection Systems (5th Edition)
- ISO 10816 / ISO 20816 — Mechanical vibration evaluation of machines
- IEC 61508 — Functional Safety (SIL-capable system integration)
- CE Marking — EMC Directive 2014/30/EU
- RoHS Compliant — Restriction of Hazardous Substances
Quality Assurance & Sourcing
Konmask.com specializes in industrial automation components sourced directly from authorized distributors and verified secondary-market channels. Every unit undergoes:
- Visual and dimensional inspection against OEM specifications
- Functional verification of connector integrity and cable continuity
- Authenticity cross-check against EMERSON Epro serial number databases
- Anti-static packaging with humidity indicator cards for safe transit
All products ship with a 90-day warranty against manufacturing defects. Expedited sourcing available for shutdown and turnaround (TAR) projects.
How to Source This Part
- Add to Cart — Click “Buy Now” or “Add to Cart” above for standard lead times.
- Request a Quote — Email support@konmask.com with your PO number, required quantity, and delivery deadline.
- Urgent / TAR Orders — Call or WhatsApp +0086 19859288691 for same-day response on critical shutdown requirements.
- Bulk / OEM Orders — Volume pricing available for EPC contractors and OEM integrators. Minimum order quantities may apply.
Application-Specific FAQ
Q: Is the PR6424/010-140 CON021 compatible with the EMERSON 3500 system?
A: Yes. When paired with the CON021 driver, this probe integrates directly with the EMERSON 3500 Machinery Protection System via standard Proximitor input modules (e.g., 3500/42).
Q: What shaft materials are compatible with this eddy current sensor?
A: The PR6424 series is calibrated for AISI 4140 steel. For stainless steel, titanium, or non-ferrous targets, a field recalibration or material-specific calibration curve is required. Contact us for calibration support.
Q: Can this sensor be used for axial position (thrust) measurement?
A: Yes. With appropriate mounting hardware and a thrust collar target, the PR6424/010-140 CON021 is suitable for axial position monitoring within the 0–2 mm linear range.
Q: What is the difference between the 010-140 and other PR6424 variants?
A: The “010” designates the 10 mm probe tip diameter and “140” indicates the 140 cm (1.4 m) integral cable length. Other variants differ in tip size (5 mm, 8 mm, 14 mm) and cable length. Ensure your driver/oscillator is matched to the same probe series.
Q: Do you provide calibration certificates?
A: Calibration certificates from the original manufacturer are provided where available. Third-party NIST-traceable calibration can be arranged upon request at additional cost.
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Contact: support@konmask.com | +0086 19859288691
