EPRO 6423/000-031-CN CON041 – Eddy Current Proximity Sensor | EPRO Proximity Probe System
Engineering Background
The EPRO 6423 series represents the industry benchmark for non-contact eddy current measurement in rotating machinery protection systems. Developed to meet the stringent demands of API 670-compliant machinery monitoring, this sensor is engineered for continuous operation in the harshest industrial environments — from high-speed gas turbines to multi-stage centrifugal compressors.
Product Positioning
The EPRO 6423/000-031-CN CON041 is a precision eddy current proximity probe designed for shaft radial vibration, axial position (thrust), and differential expansion measurement. It integrates seamlessly with EPRO CON041 signal conditioning systems and is a direct OEM-compatible replacement for existing EPRO/Emerson machinery protection installations. Procurement engineers sourcing for critical rotating equipment will find this unit fully interchangeable with legacy EPRO probe assemblies.
Complete Technical Specifications
| Part Number | 6423/000-031-CN CON041 |
| Brand / OEM | EPRO (Emerson) |
| Sensor Type | Eddy Current Proximity Probe (Non-contact) |
| Compatible Driver/Conditioner | CON041 Series Signal Conditioner |
| Measurement Range | 0 – 8 mm (nominal linear range) |
| Output Sensitivity | -8 mV/µm (standard EPRO scale factor) |
| Frequency Response | DC to 10 kHz |
| Operating Temperature | -35°C to +120°C (probe tip) |
| Cable Length | Refer to suffix code (standard: 1 m extension cable) |
| Connector Type | Coaxial, compatible with EPRO standard extension cable |
| Target Material | Ferrous and non-ferrous metals (calibrated for AISI 4140 steel) |
| Housing Material | Stainless steel, hermetically sealed |
| IP Rating | IP67 (probe body) |
| Supply Voltage | -24 VDC (via CON041 conditioner) |
| Weight | 800 g (packaged) |
| Compliance | API 670, CE, RoHS |
| SKU / Order Code | 6423/000-031-CN CON041 |
Proven Application Environments
- Gas turbine shaft radial vibration monitoring (API 670 Channel 1 & 2)
- Steam turbine axial thrust position measurement
- Centrifugal compressor differential expansion monitoring
- Gearbox and motor bearing proximity sensing
- Reciprocating compressor rod drop detection
- Petrochemical, LNG, power generation, and offshore platform installations
- Retrofit and replacement in existing EPRO/Bently Nevada proximity systems
Engineering Advantages
- Non-contact measurement: Zero mechanical wear, suitable for continuous 24/7 operation on critical rotating machinery
- High linearity: <±0.5% full-scale error across calibrated range, ensuring accurate vibration amplitude data
- Wide frequency bandwidth: DC to 10 kHz captures both slow-roll runout and high-frequency blade-pass events
- Hermetic sealing: IP67-rated stainless steel housing withstands oil mist, steam, and process gas atmospheres
- Direct OEM compatibility: Plug-and-play replacement for existing EPRO 6423-series installations — no recalibration of conditioner required
- Extended temperature range: Qualified for high-temperature bearing housings up to 120°C probe tip temperature
System Architecture & Signal Flow
The 6423/000-031-CN CON041 operates as part of a three-component eddy current measurement chain:
- Proximity Probe (6423 series) — Generates a high-frequency electromagnetic field at the probe tip. Eddy currents induced in the target shaft modulate the field, producing a gap-proportional impedance change.
- Extension Cable — Coaxial cable (matched impedance) transmits the RF signal from probe to conditioner. Cable length is system-calibrated; do not substitute with non-EPRO cables.
- CON041 Signal Conditioner — Demodulates the RF carrier, applies scale factor (-8 mV/µm), and outputs a DC voltage proportional to gap distance. Output feeds directly to EPRO MMS 6000 / PR 6000 monitoring racks or third-party DCS/PLC inputs.
Note: The complete probe system (probe + extension cable + conditioner) must be calibrated as a matched set. Konmask supplies matched system sets on request.
Sourcing & Quality Verification
- Origin: OEM-grade components sourced through verified industrial distribution channels
- Inspection: Each unit undergoes incoming inspection including visual, dimensional, and functional verification prior to dispatch
- Documentation: Material traceability records and test reports available upon request for critical plant applications
- Packaging: Anti-static, moisture-barrier packaging with foam-lined transit case for probe tip protection
- Shelf life: Stored in climate-controlled warehouse; stock rotation managed on FIFO basis
Procurement Process
- Confirm part number: Verify suffix codes (cable length, connector type) match your existing system configuration
- Request quotation: Contact support@konmask.com or call +0086 19859288691 for volume pricing and lead time
- Submit PO: Standard payment terms available for qualified industrial accounts; T/T, L/C accepted
- Shipping: DHL Express / FedEx International Priority standard; sea freight available for bulk orders
- After-sales: Technical support available for installation, commissioning, and system integration queries
Technical FAQ
Q: Is this probe compatible with Bently Nevada 3300 series conditioners?
A: The EPRO 6423 series uses EPRO-standard scale factors and connector types. Direct compatibility with Bently Nevada conditioners requires verification of scale factor and connector matching. Contact our technical team for cross-reference support.
Q: Can I use a longer extension cable than the factory-supplied length?
A: No. The probe, extension cable, and conditioner are calibrated as a matched set. Substituting cable length will shift the scale factor and introduce measurement error. Always order the complete matched system.
Q: What target material is the calibration based on?
A: Standard calibration is performed against AISI 4140 steel. For non-standard target materials (e.g., titanium, Inconel), a material correction factor must be applied. Consult EPRO application engineering or contact Konmask for guidance.
Q: Do you supply calibration certificates?
A: Functional test records are available. For formal third-party calibration certificates, please specify this requirement at time of order.
Q: What is the typical lead time?
A: In-stock units ship within 3–5 business days. For out-of-stock items, lead time is 4–8 weeks depending on OEM availability. Contact us for current stock status.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
