Turbine & Rotating Machinery Vibration Monitoring Solution – Bently Nevada 330907-05-30-70-02-CN | 3300 XL Series
Where This Product Is Used
The Bently Nevada 330907-05-30-70-02-CN is a precision proximity transducer system engineered for continuous, real-time vibration and position monitoring of rotating machinery in demanding industrial environments. Typical deployment sites include:
- Steam & Gas Turbines — shaft radial vibration, axial position, and differential expansion measurement
- Centrifugal & Axial Compressors — rotor dynamic monitoring in petrochemical and LNG plants
- Pumps & Fans — bearing journal orbit analysis in power generation and water treatment facilities
- Gearboxes & Expanders — high-speed shaft displacement in refinery and chemical process trains
- Marine Propulsion Systems — shaft monitoring in offshore platforms and vessels
Engineers in oil & gas, power generation, petrochemical, and heavy manufacturing specify this model when API 670 compliance and sub-micron measurement resolution are non-negotiable.
Technical Specifications
- Part Number: 330907-05-30-70-02-CN
- Series: Bently Nevada 3300 XL
- Transducer Type: Eddy-Current Proximity Transducer
- Cable Length: 5 m (extension cable)
- Probe Length: 30 mm
- Driver/Oscillator: 3300 XL 8mm Proximitor® Sensor
- Output Signal: -18 VDC nominal (standard Bently Nevada output)
- Frequency Range: DC to 10,000 Hz
- Temperature Range: -35°C to +177°C (probe tip)
- Target Material: AISI 4140 steel or equivalent ferromagnetic alloy
- Linear Range: 0.25 mm to 2.25 mm (typical)
- Sensitivity: 7.87 V/mm (200 mV/mil)
- Connector: CN-type (China market configuration)
- Weight: ~300 g (system assembly)
- Compliance: API 670, CE, RoHS
Why Engineers Specify This Model
- API 670 Compliant — meets the industry standard for machinery protection systems, accepted by EPC contractors and end-users globally
- 3300 XL Platform Compatibility — direct drop-in replacement within existing Bently Nevada 3300 XL monitor racks; no recalibration of the monitor required
- CN Connector Configuration — factory-terminated for Chinese market installations, eliminating field re-termination risk
- High-Temperature Probe Tip — rated to 177°C, suitable for hot-section turbine bearing pedestals
- Matched System Calibration — probe, extension cable, and Proximitor® sensor are factory-matched as a system for guaranteed linearity
- Long Service Life — solid-state eddy-current technology with no moving parts; MTBF exceeds 100,000 hours in typical installations
Complete System Bill of Materials
The 330907-05-30-70-02-CN ships as a matched system. For a complete machinery protection channel, engineers typically specify:
- 330907-05-30-70-02-CN — Proximity Transducer System (this item)
- 3300/16-XX-XX-XX — 3300 XL 16-channel monitor rack
- 3300/20-XX-XX-XX — 3300 XL Dual Voting Logic monitor (for trip systems)
- 3500/42M — Proximitor®/Seismic Monitor (for 3500 platform upgrades)
- 330130-080-00-00 — Proximitor® Sensor (if ordering separately)
- 330854-XX-XX — Armored Extension Cable (for high-vibration routing)
Compliance & Industry Standards
- API 670 — Machinery Protection Systems (5th Edition)
- IEC 61511 — Functional Safety for SIS applications
- ATEX / IECEx — available in Ex-rated configurations (consult factory)
- CE Marking — EMC Directive 2014/30/EU compliant
- RoHS — Restriction of Hazardous Substances compliant
- ISO 10816 / ISO 20816 — Mechanical vibration measurement standards
Quality Assurance & Sourcing
Konmask.com sources Bently Nevada 330907-05-30-70-02-CN units through authorized distribution channels and verified surplus inventory networks. Every unit undergoes:
- Visual inspection and label verification against Bently Nevada factory markings
- Functional continuity check on probe, cable, and Proximitor® connector
- Anti-static packaging with humidity indicator card
- Certificate of conformance available upon request
- Traceability documentation provided for critical plant applications
We do not sell counterfeit or refurbished-as-new parts. All stock is clearly described with condition and origin.
How to Source This Part
- In Stock: Add to cart and check out — ships within 1–3 business days from our warehouse
- Urgent Requirement: Contact us directly at support@konmask.com or +0086 19859288691 for same-day quotation and expedited freight options
- Bulk / Project Orders: Request a formal quotation with lead time and pricing for quantities ≥ 3 units
- OEM / EPC Procurement: We support BOM-based sourcing — send your full parts list for consolidated quotation
Application-Specific FAQ
Q: Is the 330907-05-30-70-02-CN compatible with the Bently Nevada 3500 platform?
A: The 3300 XL transducer system is natively compatible with 3300-series monitors. For 3500-series racks, a Proximitor® interface module is required. Contact us to confirm compatibility with your specific monitor card.
Q: What is the difference between the -CN and standard suffix configurations?
A: The -CN suffix denotes a China-market connector termination. Electrically and mechanically, the transducer system is identical to the standard configuration; only the field connector type differs.
Q: Can this transducer be used on non-ferromagnetic targets (e.g., titanium or aluminum shafts)?
A: No. Eddy-current proximity transducers require a ferromagnetic or conductive target. For non-standard target materials, a custom calibration or alternative sensor technology is required.
Q: What is the recommended gap voltage for initial commissioning?
A: The nominal gap voltage is -10.0 VDC ± 0.5 VDC, corresponding to a physical gap of approximately 1.27 mm (50 mil). Refer to Bently Nevada Installation Manual 141153 for full commissioning procedure.
Q: Do you provide calibration certificates?
A: Factory calibration data is embedded in the matched system. Third-party calibration certificates can be arranged upon request for critical SIS applications.
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Contact: support@konmask.com | +0086 19859288691
