Bently Nevada 330901-22-40-10-01-00 – High-Precision Proximity Transducer System | 3300 XL Series Platform
Engineering Background
The Bently Nevada 3300 XL Proximity Transducer System is the industry benchmark for non-contact, continuous measurement of shaft vibration, axial position, differential expansion, and eccentricity in rotating machinery. Engineered under Baker Hughes’ Bently Nevada product line, this system has been deployed across power generation, oil & gas, petrochemical, and heavy industrial facilities worldwide for over three decades.
Product Positioning
Part number 330901-22-40-10-01-00 is a complete, factory-matched proximity transducer system comprising a probe, extension cable, and Proximitor® sensor. It is designed for direct integration with Bently Nevada 3500 Series machinery protection racks and ADRE® data acquisition systems, delivering API 670-compliant vibration monitoring with sub-micron resolution.
Complete Technical Specifications
| Part Number | 330901-22-40-10-01-00 |
| Brand / Manufacturer | Bently Nevada (Baker Hughes) |
| Series / Platform | 3300 XL Proximity Transducer System |
| Measurement Principle | Eddy-current (non-contact) |
| Probe Tip Diameter | 8 mm (standard) |
| Linear Range | 2.0 mm (80 mil) nominal |
| Scale Factor | 7.87 V/mm (200 mV/mil) |
| Frequency Response | DC to 10,000 Hz (–3 dB) |
| Supply Voltage | –24 VDC (nominal) |
| Output Signal | –2 VDC to –18 VDC (within linear range) |
| Extension Cable Length | 1.0 m (40 in) — encoded in part number suffix |
| Probe Cable Length | 2.2 m (87 in) — encoded in part number suffix |
| Temperature Range (Probe) | –35 °C to +177 °C (–31 °F to +351 °F) |
| Temperature Range (Proximitor) | –35 °C to +85 °C (–31 °F to +185 °F) |
| Target Material | AISI 4140 steel (standard); other alloys available |
| Ingress Protection | IP67 (probe and connector) |
| Compliance | API 670, CE, ATEX (consult datasheet for zone ratings) |
| Connector Type | MIL-C-5015 style bayonet |
| Weight (system) | Approx. 200 g |
| Country of Origin | United States |
Proven Application Environments
- Power Generation: Steam turbine shaft vibration and axial position monitoring on utility-scale generators
- Oil & Gas: Compressor and pump train protection on offshore platforms and onshore processing facilities
- Petrochemical: Continuous eccentricity and differential expansion measurement on critical rotating equipment
- Pulp & Paper / Steel Mills: High-temperature proximity sensing in harsh, contaminated environments
- Marine Propulsion: Shaft monitoring on large diesel and gas turbine marine drives
- LNG Terminals: Cryogenic-adjacent installations requiring wide temperature tolerance
Engineering Advantages
- Factory-Matched System: Probe, extension cable, and Proximitor® sensor are calibrated as a matched set, eliminating field calibration errors and ensuring traceability
- Sub-Micron Resolution: Eddy-current technology delivers <0.5 µm resolution for early-warning detection of rotor instability and bearing wear
- Wide Frequency Bandwidth: DC to 10 kHz response captures both slow-roll runout and high-frequency subsynchronous events
- API 670 Compliance: Meets the international standard for machinery protection systems, satisfying insurance and regulatory requirements
- Robust IP67 Sealing: Withstands oil mist, steam, and washdown environments without signal degradation
- Direct Rack Compatibility: Plug-and-play integration with Bently Nevada 3500/22M, 3500/40M, and 3500/42M monitor modules
System Architecture & Signal Flow
The 330901-22-40-10-01-00 system operates on the classic Bently Nevada three-component architecture:
- Probe (330901 series): Generates a high-frequency (1 MHz) oscillating electromagnetic field at the probe tip. As the conductive target (shaft) moves within the linear range, eddy currents induced in the target surface alter the probe’s impedance.
- Extension Cable: Transmits the demodulated signal from the probe to the Proximitor® sensor. The 1.0 m extension cable in this configuration is optimized for installations where the Proximitor® must be mounted away from the machine casing.
- Proximitor® Sensor (3300 XL): Demodulates the probe oscillator signal and outputs a DC voltage proportional to the gap distance at 7.87 V/mm. This analog output feeds directly into the 3500 Series monitor rack for alarm, trip, and data acquisition functions.
Sourcing & Quality Verification
- All units sourced through authorized industrial distributors and verified surplus channels with documented chain of custody
- Each system undergoes incoming inspection: visual check, connector integrity, and functional output verification against Bently Nevada factory calibration data
- Serialization and date codes are verified against Bently Nevada / Baker Hughes production records where available
- Packaging inspected for moisture ingress, physical damage, and storage compliance prior to dispatch
- Certificate of conformance (CoC) and test report available upon request for critical installations
Procurement Process
- Confirm Compatibility: Verify your existing Proximitor® housing, extension cable length, and 3500 rack module (22M / 40M / 42M) match this part number configuration
- Request Quote: Contact support@konmask.com for volume pricing, lead time, and availability confirmation
- Place Order: Purchase directly via this listing or submit a PO — we accept T/T wire transfer, PayPal, and major credit cards
- Shipping: DHL / FedEx Express worldwide; export documentation (commercial invoice, packing list, EAR99 classification) provided for all international shipments
- After-Sales Support: Technical support available via email and WhatsApp (+0086 19859288691) for installation and commissioning queries
Technical FAQ
Q: Can this system be used with a non-Bently Nevada monitor rack?
A: The Proximitor® output is a standard –2 to –18 VDC analog signal and can interface with third-party monitors that accept this range, but API 670 compliance and warranty are only guaranteed within the Bently Nevada 3500 ecosystem.
Q: What is the target material sensitivity correction for stainless steel shafts?
A: Stainless steel (e.g., 316L) requires a sensitivity correction factor of approximately 0.92× relative to AISI 4140. Bently Nevada provides material correction curves in the 3300 XL installation manual (GEK-91555).
Q: Is this part number ATEX / IECEx certified for Zone 1 hazardous areas?
A: The 3300 XL probe series carries ATEX II 2G certification. Confirm the specific zone rating on the product label and the associated Proximitor® model before installation in classified areas.
Q: What is the maximum gap for initial installation (cold alignment)?
A: Recommended cold-gap setting is 1.0 mm (40 mil), placing the operating point at the center of the 2.0 mm linear range. Refer to GEK-91555 for shaft runout compensation procedures.
Q: Can I mix extension cable lengths from different part numbers?
A: No. The probe, extension cable, and Proximitor® must be used as a factory-matched set. Mixing components from different part numbers invalidates the system calibration and may cause measurement errors exceeding ±5%.
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