Bently Nevada 330905-00-05-10-12-CN – High-Precision Eddy Current Proximity Probe | NSv Series Platform
Engineering Background
The Bently Nevada 330905 Series NSv Proximity Probe is a non-contacting eddy current transducer engineered for continuous shaft vibration, position, and eccentricity measurement in rotating machinery. Developed under Baker Hughes’ Bently Nevada machinery protection platform, the NSv (Non-contacting vibration) series represents the evolution of the industry-standard 3300 XL probe system, offering enhanced signal integrity and environmental robustness for critical asset monitoring.
Product Positioning
Part number 330905-00-05-10-12-CN is a factory-configured proximity probe optimized for integration with Bently Nevada 3500 Series machinery protection systems and compatible monitors. It is the preferred choice for procurement engineers specifying vibration instrumentation on turbines, compressors, pumps, and gearboxes where API 670 compliance is required.
Complete Technical Specifications
- Part Number: 330905-00-05-10-12-CN
- Series / Platform: NSv Proximity Probe System
- Sensing Technology: Eddy Current (Non-contacting)
- Probe Cable Length: 5 ft (1.5 m) — encoded in option code -05
- Extension Cable Length: 10 ft (3.0 m) — encoded in option code -10
- Driver/Proximitor: Compatible with Bently Nevada 3300 XL / 3500 Series proximitors
- Tip Diameter: 8 mm (standard NSv tip)
- Thread Size: 3/8-24 UNF
- Sensitivity: 200 mV/mil (7.87 V/mm) nominal
- Linear Range: 10–90 mil (0.25–2.29 mm)
- Frequency Response: DC to 10,000 Hz (–3 dB)
- Operating Temperature: –35°C to +177°C (–31°F to +351°F)
- Target Material: AISI 4140 steel (standard); other alloys with calibration
- Connector: CN-type (option code -CN)
- Housing Material: Stainless steel, hermetically sealed
- Ingress Protection: IP67
- Weight: Approx. 60 g (probe body)
- Compliance: API 670, CE
Proven Application Environments
- Steam and gas turbines (radial and axial vibration monitoring)
- Centrifugal and reciprocating compressors
- Boiler feed pumps and large motor-driven equipment
- Gearboxes and expanders in petrochemical plants
- Power generation facilities requiring API 670 instrumentation
- Marine propulsion and offshore platform rotating equipment
Engineering Advantages
- Non-contacting measurement eliminates mechanical wear and enables continuous online monitoring without process interruption.
- Wide temperature range (–35°C to +177°C) supports installation in high-heat turbine bearing housings.
- Hermetically sealed stainless housing resists oil mist, steam, and aggressive process atmospheres.
- Direct backward compatibility with existing 3300 XL wiring and proximitor infrastructure — no rewiring required during upgrade.
- Factory-calibrated sensitivity of 200 mV/mil ensures plug-and-play integration with Bently Nevada 3500 monitors.
- CN connector option provides secure, vibration-resistant mating in high-vibration environments.
System Architecture & Signal Flow
The 330905-00-05-10-12-CN operates as part of a three-component eddy current measurement chain:
- Proximity Probe (330905) — generates an oscillating electromagnetic field at the probe tip; eddy currents induced in the conductive target modulate the field proportional to gap distance.
- Extension Cable — transmits the high-frequency carrier signal from probe to proximitor with controlled impedance (10 ft / 3.0 m in this configuration).
- Proximitor / Driver — demodulates the carrier signal and outputs a DC-coupled voltage proportional to gap (–24 VDC supply; output range typically –2 VDC to –18 VDC).
Output signal is directly compatible with Bently Nevada 3500/40M, 3500/42M, and 3500/45 monitor modules for radial vibration, thrust position, and differential expansion measurement.
Sourcing & Quality Verification
- All units sourced through verified industrial automation supply channels with full traceability documentation.
- Each probe is inspected for physical integrity, connector condition, and cable continuity prior to shipment.
- Calibration certificates and original manufacturer documentation available upon request.
- Konmask.com maintains a quality-first procurement policy — counterfeit-risk screening applied to every batch.
- Packaging inspected for tamper evidence; OEM labeling verified against Bently Nevada part number nomenclature.
Procurement Process
- Submit your RFQ via support@konmask.com or WhatsApp +0086 19859288691 with quantity and required delivery date.
- Receive a formal quotation with lead time, unit price (HKD/USD), and shipping options within 24 business hours.
- Confirm purchase order — payment via T/T, PayPal, or Shopify secure checkout.
- Shipment via DHL / FedEx / UPS with tracking number provided; export documentation (commercial invoice, packing list, COO) included.
- Post-delivery technical support available for installation and commissioning queries.
Technical FAQ
Q: Is the 330905-00-05-10-12-CN compatible with the Bently Nevada 3300 XL proximitor?
A: Yes. The NSv probe series maintains full electrical compatibility with 3300 XL proximitors and extension cables, allowing direct replacement without system reconfiguration.
Q: What does the “-CN” suffix indicate?
A: The “-CN” option code specifies the CN-type connector on the probe body, providing a more secure and vibration-resistant connection compared to standard pigtail terminations.
Q: Can this probe be used on non-steel targets?
A: The standard calibration is for AISI 4140 steel. For other target materials (Inconel, titanium, etc.), a material-specific calibration factor must be applied. Contact us for calibration data sheets.
Q: What is the minimum order quantity?
A: No minimum order quantity. Single units and bulk orders are both accommodated.
Q: Do you provide installation support?
A: Yes. Our technical team can provide mounting gap setup guidance, proximitor configuration parameters, and integration support for Bently Nevada 3500 Series systems.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
