Shaft Vibration Monitoring Solution — EPRO PR6423/13R-030 CON021 | PR6423 Series
Where This Product Is Used
The EPRO PR6423/13R-030 CON021 eddy current sensor is deployed in high-reliability rotating machinery protection systems across heavy industry. Typical installation environments include:
- Steam & Gas Turbines — radial shaft vibration and axial position monitoring on power generation units
- Centrifugal Compressors — real-time displacement measurement on oil & gas processing trains
- Turbo-expanders & Blowers — continuous proximity sensing in petrochemical and LNG facilities
- Pumps & Gearboxes — bearing journal orbit analysis in refinery and chemical plant applications
- Marine Propulsion Systems — shaft monitoring on diesel-electric and steam-driven vessels
This sensor is a direct-fit replacement for OEM-installed PR6423 series probes and is fully compatible with EPRO MMS 6000 / MMS 3000 series monitors and Bently Nevada 3300 / 3500 series systems when used with the appropriate CON021 extension cable and driver.
Technical Specifications
- Model: PR6423/13R-030
- Accessory: CON021 (extension cable / connector)
- Series: PR6423
- Sensing Principle: Eddy current (non-contact inductive)
- Probe Tip Diameter: 13 mm
- Cable Length: 030 = 3.0 m integral cable
- Linear Range: 0.25 – 2.25 mm (nominal)
- Sensitivity: 8 mV/µm (200 mV/mil) nominal
- Frequency Response: 0 – 10 000 Hz (–3 dB)
- Operating Temperature: –35 °C to +120 °C (probe); –35 °C to +85 °C (cable)
- Supply Voltage: –24 VDC (via driver/monitor)
- Output: –2 VDC to –18 VDC (gap-dependent)
- Target Material: AISI 4140 steel or equivalent ferromagnetic alloy
- Protection Rating: IP67 (probe body)
- Weight: approx. 268 g (probe + cable assembly)
- Connector: CON021 standard EPRO connector
Why Engineers Specify This Model
- 13 mm tip for confined bearing housings — fits standard API 670 probe boss dimensions without machining modifications
- 3-metre integral cable — eliminates an intermediate junction in most turbine pedestal installations, reducing signal noise
- CON021 connector — mates directly with EPRO extension cables (5 m, 9 m) and MMS 6000 input cards without adapters
- Wide temperature range — qualified for hot-section installations near bearing housings on high-temperature steam turbines
- Non-contact measurement — zero mechanical wear; suitable for continuous 24/7 machinery protection duty
- Drop-in OEM replacement — same part number, same calibration curve; no re-ranging of monitor required
Complete System Bill of Materials
A complete eddy current measurement chain for one measurement plane typically requires:
- Proximity Probe: PR6423/13R-030 (this item)
- Extension Cable: EPRO CON021 (3 m, 5 m, or 9 m — specify gap)
- Driver / Oscillator: EPRO CON011 or CON021 series driver
- Monitor Input Card: EPRO MMS 6110 (vibration) or MMS 6120 (position)
- Mounting Hardware: API 670 probe holder, lock nut, and jam nut (customer-supplied)
- Signal Cable: Shielded twisted-pair to DCS/PLC analog input
Contact Konmask.com to source the complete measurement chain as a matched, calibrated set.
Compliance & Industry Standards
- API 670 — Machinery Protection Systems (5th Edition): probe, cable, and driver system compliant
- IEC 60068 — Environmental testing (vibration, shock, temperature cycling)
- ATEX / IECEx — Consult datasheet for zone classification; intrinsically safe variants available on request
- ISO 10816 / ISO 20816 — Mechanical vibration evaluation of machines
- CE Marking — EMC Directive 2014/30/EU
Quality Assurance & Sourcing
Konmask.com sources EPRO PR6423 series sensors through authorised distribution channels and verified industrial surplus networks. Every unit offered is subject to:
- Visual and dimensional inspection against OEM drawings
- Continuity and insulation resistance check on integral cable
- Connector integrity verification (CON021 mating test)
- Traceability documentation provided on request (batch records, test reports)
We do not sell counterfeit, re-labelled, or unverified parts. All stock is held in ESD-safe, climate-controlled storage.
How to Source This Part
- Request a Quote: Email support@konmask.com with your required quantity and delivery timeline
- Phone / WhatsApp: +0086 19859288691 (Mon–Fri, 09:00–18:00 CST)
- Lead Time: Ex-stock units ship within 2 business days; sourced units typically 7–21 days
- Minimum Order: 1 piece
- Export: Worldwide shipping available; export documentation and customs HS code support provided
Application-Specific FAQ
Q: Is the PR6423/13R-030 CON021 a direct replacement for a Bently Nevada 3300 XL 8 mm probe?
A: No — the PR6423 uses a 13 mm tip and a different calibration curve. It is a direct replacement for EPRO PR6423/13R series probes only. Cross-system use requires recalibration of the driver and monitor.
Q: Can I use a longer extension cable with this probe?
A: Yes. The CON021 connector mates with EPRO extension cables up to 9 m. Total system cable length (probe + extension) must not exceed the driver specification — typically 15 m maximum.
Q: What target material is required?
A: The probe is calibrated for AISI 4140 steel. Other ferromagnetic alloys (e.g. 17-4PH, Inconel 718) require a calibration correction factor — consult the EPRO calibration guide or contact us.
Q: Do you supply calibration certificates?
A: Calibration certificates from the OEM or a third-party NIST-traceable lab can be arranged on request. Please specify at time of order.
Q: Is this sensor suitable for ATEX Zone 1 installations?
A: ATEX-rated variants of the PR6423 series exist. Please confirm the exact ATEX suffix required and we will verify stock or source accordingly.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
