Emerson PR6424/000-100 CON021 Eddy Current Proximity Sensor | Replacement, Equivalent & Selection Guide
The Emerson PR6424/000-100 CON021 is a high-precision eddy current (non-contact) proximity sensor designed for continuous vibration and position monitoring in rotating machinery. Widely used in turbines, compressors, and pumps, it is a core component of the Bently Nevada 3300 XL monitoring system. This page provides full technical specifications, compatible replacement models, a selection guide, and sourcing information to help engineers and procurement teams make confident decisions.
Technical Specifications
- Manufacturer: Emerson (Bently Nevada)
- Part Number: PR6424/000-100 CON021
- Sensor Type: Eddy Current / Non-contact Proximity
- Series: PR6424
- Cable Length: 1.0 m (standard; other lengths available)
- Tip Diameter: 8 mm
- Measurement Range: 0–2 mm (linear range)
- Sensitivity: 7.87 V/mm (200 mV/mil)
- Operating Temperature: −40°C to +120°C
- Supply Voltage: −24 VDC (via driver/conditioner)
- Output Signal: DC voltage proportional to gap distance
- Thread: M10 × 1
- Connector: CON021 (standard Bently Nevada connector)
- Weight: Approx. 280 g (with cable)
- Compliance: CE, RoHS
Compatible Replacement & Equivalent Models
The following models are functionally compatible or direct replacements for the PR6424/000-100 CON021. Always verify connector type, cable length, and system driver compatibility before substitution.
- Emerson / Bently Nevada: PR6424/000-030, PR6424/000-060, PR6424/002-100, PR6424/010-100
- EPRO (Emerson OEM): PR6424/000-100 (identical specification, EPRO-branded)
- Metrix / Wilcoxon: ST5484E series (8 mm eddy current, compatible driver)
- Dwyer / Other: Consult datasheet for 8 mm / 200 mV/mil sensitivity match
Note: Third-party equivalents must be validated against your specific driver/conditioner (e.g., 3300 XL 8 mm Proximity Transducer System) for API 670 compliance.
Why Choose the Original Model
- API 670 Certified: Meets the industry standard for machinery protection systems.
- Factory Calibrated: Each sensor is individually calibrated and traceable to NIST standards.
- System Integration: Plug-and-play with Bently Nevada 3300 XL, 3500, and TDXnet monitor racks.
- Long-term Support: Emerson provides full lifecycle support, firmware updates, and spare parts.
- Proven Reliability: Deployed in power generation, oil & gas, and petrochemical plants worldwide.
Typical Applications
- Steam and gas turbine shaft vibration monitoring
- Centrifugal compressor radial and axial position measurement
- Pump and motor bearing displacement monitoring
- Gearbox and fan shaft eccentricity detection
- OEM machinery protection system integration
System Compatibility
- Monitor Racks: Bently Nevada 3300 XL, 3500/40M, 3500/42M, TDXnet
- Driver / Conditioner: 3300 XL 8 mm Proximity Transducer System (PN 330180)
- Extension Cable: PR6422 series (matched impedance, up to 9 m total)
- DCS / PLC Integration: 4–20 mA or ±10 V output via signal conditioner; compatible with Siemens, ABB, Rockwell, Honeywell DCS platforms
Selection Guide
Use the table below to select the correct PR6424 variant for your application:
- Cable Length Suffix: -030 = 0.3 m | -060 = 0.6 m | -100 = 1.0 m | -500 = 5.0 m
- Target Material: Steel (AISI 4140 reference); correction factors apply for stainless, titanium, or aluminum shafts
- Gap Setting: Recommended initial gap 1.0 mm (midpoint of linear range)
- Driver Match: Always pair with 330180-51-00 or equivalent 3300 XL driver for correct scale factor
- Hazardous Area: For ATEX / IECEx zones, specify PR6424/…-100 with appropriate barrier (e.g., MTL 787+)
Quality Assurance & Sourcing
- All units sourced from authorized distributors or verified surplus channels
- Each sensor inspected and function-tested prior to shipment
- Calibration certificate available upon request
- Genuine Emerson / Bently Nevada OEM parts — no counterfeit risk
- Secure packaging with ESD protection and moisture barrier
How to Order
- Confirm part number: PR6424/000-100 CON021
- Specify quantity and required delivery timeline
- Contact us for real-time stock availability and pricing
- Submit PO or request a formal quotation via email
📧 Email: support@konmask.com
📞 Phone / WhatsApp: +0086 19859288691
🌐 Website: https://Konmask.com
Replacement & Compatibility FAQ
Q: Can I use a PR6424/000-060 instead of PR6424/000-100?
A: Yes — the only difference is cable length (0.6 m vs 1.0 m). Electrical performance is identical.
Q: Is the CON021 connector the same as CON011?
A: No. CON021 and CON011 differ in pin configuration. Verify connector type before ordering.
Q: Will this sensor work with a Bently Nevada 3500 rack?
A: Yes, when paired with the correct 3500-series proximity input module and 330180 driver.
Q: Do you supply ATEX-certified versions?
A: Yes. Please contact us with your zone classification and we will confirm the appropriate variant.
Q: What is the lead time for this part?
A: In-stock units ship within 1–3 business days. Out-of-stock lead time is typically 2–4 weeks.
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