Bently Nevada 330904-00-02-05-02-00 – 8mm Eddy-Current Proximity Transducer System | 3300 XL Series
Engineering Background
The Bently Nevada 3300 XL Series represents the industry benchmark for non-contacting eddy-current measurement in rotating machinery protection. Developed by Baker Hughes (Bently Nevada), this platform has been deployed across power generation, petrochemical, and oil & gas facilities worldwide for over three decades, forming the sensing backbone of API 670-compliant machinery protection systems.
Product Positioning
The 330904-00-02-05-02-00 is an 8mm proximity transducer system configured for standard 5-metre extension cable with a 2-metre armored probe cable, operating on the 3300 XL signal conditioning platform. It delivers continuous, real-time radial vibration, axial position, and differential expansion measurements — critical parameters for turbines, compressors, pumps, and gearboxes operating at high speed and high value.
Complete Technical Specifications
- Part Number: 330904-00-02-05-02-00
- Series / Platform: Bently Nevada 3300 XL Proximity Transducer System
- Sensing Technology: Eddy-current (non-contacting)
- Probe Tip Diameter: 8 mm
- Probe Cable Length: 2 metres (armored)
- Extension Cable Length: 5 metres
- Total System Cable: 7 metres (probe + extension)
- 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 (–20 to –26 VDC)
- Output Signal: –2 to –18 VDC (within linear range)
- Target Material: AISI 4140 steel (standard); other materials require scale factor correction
- Operating Temperature (Probe): –35°C to +177°C
- Operating Temperature (Driver/Extension): –35°C to +85°C
- Connector Type: Standard BNC / integral connector per system configuration
- Approvals / Compliance: API 670, CE, ATEX / IECEx (zone-dependent configuration)
- Weight: Approx. 140 g (probe + cable assembly)
- Country of Origin: United States
Proven Application Environments
- Steam and gas turbines (radial shaft vibration, thrust position)
- Centrifugal and axial compressors (API 670 machinery protection)
- Boiler feed pumps and large motor-driven equipment
- Gearboxes and expanders in refinery and petrochemical service
- Hydro turbines and generator shaft monitoring
- LNG liquefaction trains and offshore platform rotating equipment
Engineering Advantages
- Non-contacting measurement: Zero mechanical wear; suitable for continuous online monitoring at speeds exceeding 100,000 RPM
- High frequency response: DC to 10 kHz bandwidth captures sub-synchronous, synchronous, and high-frequency vibration components
- Matched system calibration: Probe, extension cable, and driver are factory-matched and calibrated as a system — do not mix components from different serial batches
- Robust construction: Armored probe cable withstands high-temperature, high-vibration, and chemically aggressive environments
- Direct compatibility: Plug-and-play with Bently Nevada 3300 series monitors (3300/16, 3300/20, 3300/25, 3300/55) and System 1 software
- API 670 compliant: Meets the 5th Edition standard for machinery protection instrumentation
System Architecture & Signal Flow
The 330904-00-02-05-02-00 operates as a three-component matched system:
- Probe (8mm tip): Generates a high-frequency electromagnetic field; eddy currents induced in the target shaft modulate the field proportionally to gap distance.
- Extension Cable (5m): Transmits the oscillator signal between probe and driver with controlled impedance; must not be cut or spliced.
- Proximitor® Driver / Oscillator-Demodulator: Converts the modulated signal to a DC voltage output (–2 to –18 VDC) proportional to gap; interfaces directly with the monitor rack input card.
Output feeds into Bently Nevada monitor cards which perform gap, 1X, 2X, and broadband vibration alarming per API 670 setpoints.
Sourcing & Quality Verification
- All units sourced through verified industrial automation supply channels
- Each system inspected for physical integrity: probe tip, cable armor, connector pins, and driver housing
- Serialization and date codes verified against Bently Nevada manufacturing records where available
- Functional bench-test available on request prior to shipment
- Konmask.com specializes in genuine OEM and certified-refurbished Bently Nevada components — we do not supply uncertified aftermarket substitutes
Procurement Process
- Confirm compatibility: Verify your existing monitor card accepts 3300 XL series transducers (check driver gap voltage range and scale factor)
- Specify cable configuration: Confirm 2m probe + 5m extension is suitable for your installation geometry
- Place order: Add to cart or contact support@konmask.com for volume pricing and lead time
- Receive & verify: Inspect part number label, serial number, and cable integrity upon receipt
- Commission: Follow Bently Nevada installation manual for gap setting (typically 1.0 mm / 40 mil for midpoint of linear range)
Technical FAQ
Q: Can I use a different extension cable length with this probe?
A: No. The 330904-00-02-05-02-00 is a factory-matched system. Changing cable length alters system impedance and invalidates the calibrated scale factor. Order the correct part number for your required cable length.
Q: Is this compatible with the Bently Nevada 3500 series monitors?
A: The 3300 XL transducer system is primarily designed for 3300 series monitors. Compatibility with 3500 series requires verification of the specific monitor card input specifications — contact us for application engineering support.
Q: What target material is assumed for the 7.87 V/mm scale factor?
A: AISI 4140 steel. For other shaft materials (stainless steel, titanium, Inconel), a material correction factor must be applied per Bently Nevada application note TN-13.
Q: Do you provide calibration certificates?
A: Calibration documentation from the original manufacturer is provided where available. Third-party recalibration can be arranged on request.
Q: What is the lead time?
A: In-stock units ship within 1–3 business days. Contact us for current availability: support@konmask.com | +0086 19859288691
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
