EMERSON PR6423/014-110 CON021 – Eddy Current Proximity Sensor | Epro Series
The EMERSON PR6423/014-110 CON021 is a precision eddy current proximity sensor from the Epro series, engineered for continuous, non-contact displacement and vibration measurement in critical rotating machinery. Designed to meet the demanding requirements of power generation, oil & gas, petrochemical, and heavy industrial environments, this sensor delivers reliable shaft position and vibration data essential for predictive maintenance and machine protection systems.
As an authorized distributor and technical partner, Konmask.com supplies genuine EMERSON Epro components with full traceability, supporting procurement engineers who require verified, specification-accurate parts for MRO and capital projects.
Complete Technical Specifications
- Part Number: PR6423/014-110 CON021
- Brand / Manufacturer: EMERSON (Epro)
- Series / Platform: Epro PR6423 Eddy Current Sensor Series
- Sensor Type: Non-contact Eddy Current Proximity Probe
- Measurement Function: Shaft radial vibration, axial displacement, differential expansion, eccentricity
- Cable Length: 1.0 m (extension cable CON021 included)
- Thread Size: M14 × 1.5 (standard Epro mounting thread)
- Tip Diameter: 14 mm
- Operating Temperature: −40 °C to +120 °C (sensor tip); −40 °C to +85 °C (cable)
- Supply Voltage: −24 VDC (nominal, via compatible Epro driver/monitor)
- Output Signal: Voltage proportional to gap distance (mV/µm or mV/mil)
- Sensitivity: 8 mV/µm (200 mV/mil) nominal
- Linear Range: 0.25 mm – 2.25 mm (10 mil – 90 mil)
- Target Material: Steel (AISI 4140 or equivalent ferromagnetic alloy)
- Protection Rating: IP67
- Connector Type: CON021 integral connector
- Weight: Approx. 380 g (with cable assembly)
- Compliance: Compatible with API 670 machinery protection standards
- Compatible Monitors: EMERSON Epro MMS 6000, MMS 3000, CSI 6500 series
Proven Application Environments
- Power Generation: Steam turbines, gas turbines, hydro generators — shaft vibration and position monitoring
- Oil & Gas: Compressors, pumps, expanders — continuous bearing clearance and rotor dynamics measurement
- Petrochemical & Refining: Critical rotating equipment protection per API 670
- Pulp & Paper / Steel Mills: High-speed roll and drive shaft monitoring
- Marine & Offshore: Propulsion shaft and gearbox displacement measurement
- General Heavy Industry: Any application requiring non-contact, high-resolution position sensing
Engineering Advantages
- Non-contact measurement eliminates mechanical wear and enables continuous online monitoring without process interruption
- High resolution and linearity ensure accurate displacement readings across the full operating range
- Robust IP67 construction withstands oil mist, coolant splash, and harsh industrial atmospheres
- Wide temperature range supports installation in high-heat turbine environments
- Direct API 670 compatibility simplifies integration into existing machinery protection systems
- Integral CON021 connector provides secure, vibration-resistant signal termination
- Plug-and-play with Epro MMS monitors — no additional signal conditioning required
System Architecture & Signal Flow
The PR6423/014-110 CON021 operates as part of the Epro eddy current measurement chain:
- Sensor (PR6423): Generates a high-frequency electromagnetic field; gap change modulates the field impedance
- Extension Cable (CON021): Transmits the modulated signal with minimal loss to the driver/oscillator
- Driver / Oscillator: Demodulates the signal and outputs a DC voltage proportional to gap distance (typically housed in the monitor rack or as a standalone driver module)
- Monitor (MMS 6000 / CSI 6500): Processes the DC output for alarm, trip, and data acquisition functions
This architecture ensures a calibrated, temperature-compensated measurement chain from sensor tip to control room display.
Sourcing & Quality Verification
- All units supplied by Konmask.com are sourced from authorized EMERSON Epro distribution channels or verified surplus with full documentation
- Each unit undergoes incoming inspection: physical integrity check, connector verification, and part number label authentication
- Calibration certificates and factory test reports available upon request for critical applications
- Traceability documentation (lot number, date code, country of origin) provided with every shipment
- Packaging: original EMERSON anti-static packaging or equivalent ESD-safe packaging for surplus units
Procurement Process
- Step 1 — Inquiry: Submit your RFQ via the product page or email support@konmask.com with quantity and required delivery date
- Step 2 — Quotation: Receive a formal quotation within 24 hours including unit price, lead time, and shipping options
- Step 3 — Order Confirmation: Place order via Shopify checkout or purchase order (PO accepted for qualified accounts)
- Step 4 — Shipment: Units dispatched within 1–3 business days; DHL / FedEx / UPS express available for urgent requirements
- Step 5 — After-Sales: 12-month warranty on new units; technical support available for installation and commissioning queries
Technical FAQ
Q: Is the PR6423/014-110 CON021 compatible with non-EMERSON monitors?
A: Yes, provided the monitor accepts a standard −24 VDC-powered eddy current sensor output (mV/µm). Verify the driver/oscillator compatibility before installation.
Q: What is the difference between PR6423/014-110 and other PR6423 variants?
A: The “/014” designates the 14 mm tip diameter and 1.0 m integral cable length. “/110” refers to the specific connector and cable configuration. Always match the full part number when ordering to ensure system calibration compatibility.
Q: Can this sensor be used on non-ferrous targets (aluminum, titanium)?
A: The PR6423 is optimized for ferromagnetic steel targets per EMERSON Epro specifications. Use on non-ferrous materials will result in reduced sensitivity and non-linear output; recalibration with the actual target material is required.
Q: What is the recommended gap setting for initial commissioning?
A: EMERSON recommends an initial gap of 1.0 mm (40 mil) — the midpoint of the linear range — for optimal measurement headroom in both directions.
Q: Do you offer expedited shipping for shutdown/turnaround situations?
A: Yes. Contact us directly at +0086 19859288691 for emergency procurement support. We maintain stock for rapid dispatch.
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Contact: support@konmask.com | +0086 19859288691
