Bently Nevada 330905-00-19-10-02-00 – Eddy Current Proximity Probe | 3300 NSv Series
Engineering Background: The Bently Nevada 3300 NSv (Non-Standard Voltage) Proximity Probe System is the industry benchmark for continuous, non-contact vibration and position measurement on rotating machinery. Engineered to API 670 standards, this system is deployed globally in turbines, compressors, pumps, and motors where shaft dynamic behavior is mission-critical.
Product Positioning: Part number 330905-00-19-10-02-00 specifies a 19mm diameter probe tip with a 10-meter (33 ft) integral cable, configured for the NSv driver/monitor ecosystem. It delivers a calibrated output of 200 mV/mil (7.87 V/mm) and is designed for direct drop-in replacement or new installation within existing 3300 Series monitor racks.
Complete Technical Specifications
- Part Number: 330905-00-19-10-02-00
- Series / Platform: Bently Nevada 3300 NSv Proximity Probe System
- Probe Tip Diameter: 19 mm (0.75 in)
- Cable Length: 10 m (32.8 ft) integral armored cable
- Output Sensitivity: 200 mV/mil (7.87 V/mm)
- Linear Range: 0 to 90 mil (0 to 2.29 mm)
- Frequency Response: DC to 10,000 Hz (–3 dB)
- Supply Voltage: –24 VDC (nominal), compatible with 3300 NSv drivers
- Operating Temperature: –35°C to +177°C (probe body); cable rated to +121°C
- Target Material: AISI 4140 steel (standard calibration); other materials require recalibration
- Connector: 02 – standard BNC-compatible NSv connector
- Housing Material: Stainless steel probe body with PTFE-jacketed cable
- Ingress Protection: IP67 (probe tip and body)
- Compliance: API 670 5th Edition, CE, RoHS
- Weight: Approx. 80 g (probe + cable assembly)
- Country of Origin: USA
Proven Application Environments
- Steam and gas turbine shaft radial vibration monitoring
- Centrifugal and reciprocating compressor journal bearing displacement
- Pump and motor rotor position sensing
- Gearbox and expander axial position measurement
- Petrochemical, LNG, power generation, and offshore platforms
- Any API 670-compliant machinery protection system requiring 3300 NSv compatibility
Engineering Advantages
- Non-contact measurement: Zero mechanical wear; continuous operation without maintenance intervals
- High-frequency response: DC to 10 kHz captures sub-synchronous, synchronous, and super-synchronous vibration components
- Wide temperature range: Suitable for hot-section installations near bearing housings
- Integral cable design: Eliminates field-assembled extension cable joints that introduce signal noise
- Direct system compatibility: Plug-and-play with all 3300 NSv drivers (3300/16, 3300/20, 3300/25) and Bently Nevada 3500 monitor racks via NSv interface
- API 670 certified: Meets machinery protection requirements for critical and essential machinery classifications
System Architecture & Signal Flow
The 330905-00-19-10-02-00 operates as the sensing element in a three-component eddy current system:
- Probe (330905-00-19-10-02-00): Generates a high-frequency electromagnetic field (1–2 MHz) at the tip. Eddy currents induced in the target shaft modulate the field proportional to gap distance.
- Extension Cable (3300 XL series, if required): Transmits the modulated signal from probe to driver. Total probe + extension cable must equal the system-calibrated length (typically 5 m or 9 m extension for this 10 m integral probe — no extension required).
- NSv Driver / Oscillator-Demodulator: Converts the modulated RF signal to a DC voltage output (200 mV/mil). Output feeds directly to 3500 monitor input cards or DCS analog input modules.
Note: This probe’s 10 m integral cable is factory-calibrated as a complete assembly. Do not cut or splice the cable — doing so voids calibration and API 670 compliance.
Sourcing & Quality Verification
- All units sourced from authorized Bently Nevada / Baker Hughes distribution channels or verified surplus with full traceability documentation
- Each probe inspected for physical integrity: tip condition, cable jacket, connector seating, and label legibility
- Functional verification available on request: gap vs. output voltage sweep test report
- Original OEM packaging preserved where available; repackaged units include inspection certificate
- Shelf life: indefinite when stored per OEM guidelines (dry, temperature-controlled environment, connector caps installed)
Procurement Process
- Confirm compatibility: Verify your driver part number is NSv-series (3300/16, /20, /25) and total cable length matches your installation gap
- Request quote or place order: Add to cart or contact [email protected] for volume pricing and lead time
- Documentation package: Datasheet, calibration record, and certificate of conformance available upon request
- Shipping: Ships from warehouse within 1–3 business days; DHL / FedEx international express available; export documentation (EAR99) provided
- Returns: 30-day return window for unused, uninstalled units in original condition
Technical FAQ
Q: Can this probe be used with a 3300 XL driver instead of an NSv driver?
A: No. The NSv probe is calibrated for NSv drivers. Using it with a 3300 XL driver will produce incorrect output scaling. Verify your driver series before ordering.
Q: What is the maximum gap for reliable measurement?
A: The linear range is 0–90 mil (0–2.29 mm). For optimal accuracy, operate between 20–80 mil (0.5–2.0 mm) gap — the center of the linear range.
Q: Does the 19 mm tip diameter affect sensitivity vs. a 25 mm probe?
A: Tip diameter affects the linear range and target size requirements, not the mV/mil sensitivity (both are 200 mV/mil in the NSv system). The 19 mm tip is suited for smaller shaft diameters and tighter bearing housing installations.
Q: Is recalibration required after installation?
A: No field recalibration is required if the probe, cable, and driver are used as a matched, factory-calibrated set. Recalibration is required only if the target material differs from AISI 4140 steel.
Q: Can Konmask provide a Certificate of Conformance?
A: Yes. A CoC is available for all units. Please request at time of order or contact [email protected].
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