Bently Nevada 330910-00-07-10-02-00 – Eddy Current Proximity Probe | 3300 NSv Platform
Engineering Background: The Bently Nevada 3300 NSv series represents the industry benchmark for non-contacting eddy current measurement in rotating machinery protection and condition monitoring. Engineered to API 670 standards, this platform has been deployed across gas turbines, steam turbines, compressors, and pumps in critical process industries worldwide for over three decades.
Product Positioning: The 330910-00-07-10-02-00 is a 7.87 mm (5/16 in) diameter proximity probe with a 200 mil (5.08 mm) linear measurement range, designed for radial vibration, axial position, and differential expansion monitoring. It is the preferred choice for procurement engineers sourcing OEM-compatible replacement sensors for existing 3300 NSv monitor systems without requiring recalibration of the monitoring rack.
Complete Technical Specifications
- Part Number: 330910-00-07-10-02-00
- Series / Platform: Bently Nevada 3300 NSv
- Probe Diameter: 7.87 mm (5/16 in)
- Linear Range: 200 mil (5.08 mm)
- Sensitivity: 200 mV/mil (7.87 V/mm)
- Frequency Response: DC to 10,000 Hz (–3 dB)
- Operating Temperature: –35°C to +177°C (–31°F to +351°F)
- Cable Length: 7 ft (2.13 m) integral armored cable
- Extension Cable Compatibility: 3300 XL / NSv series extension cables
- Driver / Oscillator Compatibility: 3300 NSv Proximitor® Sensor
- Target Material: AISI 4140 steel (standard); consult factory for other alloys
- Connector: 2-pin MIL-C-5015 style
- Housing Material: Stainless steel, hermetically sealed
- Ingress Protection: IP67
- Approvals: CE, ATEX (consult datasheet for zone classification)
- Weight: Approx. 80 g
- Country of Origin: USA
Proven Application Environments
- Gas turbine radial shaft vibration monitoring (API 670 compliant installations)
- Steam turbine axial thrust position measurement
- Centrifugal compressor differential expansion monitoring
- Boiler feed pump and large motor bearing proximity sensing
- Petrochemical and LNG plant rotating equipment protection systems
- Power generation OEM skid-mounted monitoring panels
Engineering Advantages
- Drop-in OEM Replacement: Fully compatible with existing 3300 NSv Proximitor® drivers — no rack reconfiguration or sensitivity rescaling required.
- Extended Temperature Stability: Maintains calibration accuracy across the full –35°C to +177°C range, suitable for hot-section turbine installations.
- Hermetically Sealed Housing: IP67-rated stainless steel body resists process fluid ingress, steam, and aggressive cleaning agents.
- Armored Integral Cable: Factory-terminated 7 ft armored cable eliminates field-splice failure points common in harsh vibration environments.
- API 670 Compliance: Meets the measurement chain requirements of API Standard 670 (5th Edition) for machinery protection systems.
System Architecture & Signal Flow
The 330910-00-07-10-02-00 probe operates as part of a three-component eddy current measurement chain:
- Proximity Probe (330910-00-07-10-02-00) — Generates a high-frequency electromagnetic field; target displacement modulates the field impedance.
- Extension Cable (3300 NSv series) — Transmits the modulated signal from the probe tip to the Proximitor® sensor; total cable system length must match the calibrated system.
- Proximitor® Sensor / Driver — Demodulates the signal and outputs a DC voltage proportional to gap distance (–200 mV/mil scale factor) for input to the 3300 series monitor.
Note: Probe, extension cable, and Proximitor® sensor must be ordered and calibrated as a matched system. Mixing components from different calibrated systems will introduce measurement error.
Sourcing & Quality Verification
- Source: Konmask.com sources Bently Nevada components from authorized distribution channels and verified surplus inventories with full traceability documentation.
- Inspection: Each unit undergoes visual inspection, connector integrity check, and impedance verification prior to shipment.
- Documentation: Certificate of conformance and original manufacturer datasheet available upon request.
- Packaging: Ships in original or equivalent ESD-safe packaging with desiccant.
Procurement Process
- Confirm your existing Proximitor® sensor model and total cable system length before ordering to ensure matched-system compatibility.
- Submit your purchase order or RFQ via the product page or email support@konmask.com.
- Lead time: In-stock units ship within 1–3 business days; ETA confirmation provided at order acknowledgment.
- Export documentation (commercial invoice, packing list, COO) included for international shipments.
Technical FAQ
Q: Can this probe be used with a 3300 XL Proximitor® sensor?
A: The 3300 NSv probe is designed for the NSv Proximitor® driver. While physical connectors may be similar, sensitivity and calibration are optimized for the NSv driver. Cross-use with XL drivers is not recommended without factory verification.
Q: What is the maximum gap for reliable measurement?
A: The linear range is 200 mil (5.08 mm). For optimal linearity, operate within 50–150 mil (1.27–3.81 mm) of the target surface.
Q: Is this probe suitable for non-ferrous targets?
A: The standard calibration is for AISI 4140 steel. Non-ferrous or exotic alloy targets require a custom calibration curve. Contact our engineering team for guidance.
Q: Do you provide ATEX/IECEx certification documentation?
A: Yes. Certification documentation is available upon request for installations in classified hazardous areas.
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