Turbine Shaft Vibration Monitoring Solution — EMERSON PR6423/010-030 CON021 | Epro Series
Where This Product Is Used
The EMERSON PR6423/010-030 CON021 is an eddy-current proximity transducer from the Epro series, engineered for continuous, non-contact measurement of shaft radial vibration, axial position, and differential expansion in rotating machinery. It is deployed across the following industrial environments:
- Steam & Gas Turbines — shaft vibration and eccentricity monitoring per API 670
- Centrifugal Compressors — radial bearing clearance and rotor dynamic analysis
- Boiler Feed Pumps — axial thrust position protection
- Large Electric Motors & Generators — rotor orbit and balance monitoring
- Petrochemical & Refinery Trains — continuous online machinery protection systems
- Power Generation Plants — integrated with Bently Nevada 3500 / Epro MMS6000 racks
Technical Specifications
| Manufacturer | EMERSON (Epro) |
| Part Number | PR6423/010-030 CON021 |
| Series | Epro PR6423 Eddy-Current Proximity Transducer |
| Measurement Type | Non-contact radial vibration & axial position |
| Probe Tip Diameter | Ø10 mm |
| Cable Length | 030 (3.0 m integral cable) |
| Connector | CON021 — standard Epro connector |
| Sensitivity | 8 mV/µm (200 mV/mil) nominal |
| Linear Range | 0.25 – 2.25 mm (10 – 90 mil) |
| Supply Voltage | −24 VDC (via extension cable / driver) |
| Output Signal | −2 to −18 VDC (proportional to gap) |
| Frequency Response | DC to 10 kHz (−3 dB) |
| Operating Temperature | −40 °C to +120 °C (probe); −40 °C to +85 °C (driver) |
| Target Material | Steel / non-magnetic conductive metals |
| Weight | 580 g (probe + cable assembly) |
| Protection Class | IP67 (probe body) |
Why Engineers Specify This Model
- Drop-in OEM Compatibility — direct replacement for existing Epro PR6423 installations; no recalibration of the monitoring rack required.
- High-Temperature Stability — ceramic-wound coil maintains sensitivity linearity up to 120 °C, critical for hot-section turbine bearing housings.
- CON021 Connector — locking bayonet design prevents accidental disconnection under vibration; field-replaceable without special tooling.
- 3 m Integral Cable — eliminates an extension cable joint in short-reach installations, reducing signal noise and failure points.
- API 670 Compliant — meets the machinery protection standard mandated by most EPC contractors and plant operators.
- Broad Driver Compatibility — works with Epro CON011/CON021 drivers and is cross-compatible with Bently Nevada 3300 XL driver electronics when properly configured.
Complete System Bill of Materials
A complete eddy-current measurement chain for one measurement plane typically includes:
- Proximity Probe: PR6423/010-030 CON021 (this item)
- Extension Cable: PR6422/___-___ (if probe-to-driver distance > 3 m)
- Driver / Oscillator: PR6426/010-100 or PR6426/010-140
- Monitoring Module: Epro MMS6110 (vibration) or MMS6120 (position)
- Rack / Backplane: Epro MMS6000 series or Bently Nevada 3500 rack
- Mounting Hardware: PR9376 probe holder + locknut (stainless steel)
Contact support@konmask.com for complete loop pricing and availability.
Compliance & Industry Standards
- API 670 — Machinery Protection Systems (5th Edition)
- IEC 60068-2 — Environmental testing (vibration, shock, temperature)
- ATEX / IECEx — Consult factory for zone-rated variants
- CE Marking — EMC Directive 2014/30/EU
- RoHS Compliant — Restriction of Hazardous Substances
Quality Assurance & Sourcing
- All units sourced from authorized EMERSON / Epro distribution channels or verified OEM-surplus with full traceability documentation.
- Each probe is individually tested for sensitivity, linearity, and insulation resistance prior to shipment.
- Shipment includes: probe assembly, calibration data sheet, and original manufacturer packaging where available.
- Shelf-life managed under controlled storage (temperature & humidity monitored warehouse).
- Certificate of Conformance (CoC) available upon request.
How to Source This Part
- Add to Cart — click the purchase button above for in-stock units.
- Request a Quote — email support@konmask.com with your required quantity, delivery timeline, and any documentation requirements (CoC, MSDS, FAT report).
- WhatsApp / Phone — reach our technical sales team at +0086 19859288691 for urgent requirements or system-level BOM discussions.
- Lead Time — in-stock units ship within 2 business days; ex-factory orders quoted individually.
Application-Specific FAQ
Q: Can this probe replace a Bently Nevada 3300 XL 8 mm probe directly?
A: Not as a direct plug-and-play swap — the connector and driver electronics differ. However, with the correct Epro driver (PR6426 series), the measurement chain is functionally equivalent and API 670 compliant. Contact us for a compatibility assessment.
Q: What target material is required for accurate readings?
A: The probe is calibrated for AISI 4140 steel. For other target materials (stainless, titanium, Inconel), a material correction factor must be applied. Consult the PR6423 calibration datasheet or our engineering team.
Q: Is the CON021 connector interchangeable with CON011?
A: CON021 and CON011 use the same bayonet locking body but have different pin assignments. They are not interchangeable without an adapter. Verify your driver input connector before ordering.
Q: What is the maximum shaft speed this probe can monitor?
A: The 10 kHz frequency response supports shaft speeds up to approximately 600,000 RPM for once-per-revolution signals, well beyond any practical rotating machinery application.
Q: Do you provide ATEX-certified units?
A: ATEX-rated variants of the PR6423 series exist. Please specify your hazardous area classification (Zone 1/2, gas group, temperature class) when requesting a quote.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
