Bently Nevada 330904-00-24-50-02-00 – High-Sensitivity Proximity Transducer | 3300 XL NSv Platform
Engineering Background: The Bently Nevada 3300 XL NSv (Non-contact Shaft Vibration) Proximity Transducer System is engineered for continuous, real-time measurement of radial shaft vibration, axial position, and differential expansion in rotating machinery. Developed under Baker Hughes’ Bently Nevada machinery protection portfolio, this system is the industry benchmark for turbomachinery condition monitoring in power generation, oil & gas, and petrochemical facilities.
Product Positioning: Part number 330904-00-24-50-02-00 is a complete proximity transducer assembly configured for 24-inch (610 mm) extension cable, 5-meter (50 dm) armored cable, and standard 02-00 connector termination. It is designed to interface directly with Bently Nevada 3300 XL signal conditioning systems and is fully compatible with System 1 and 3500 Series monitoring racks.
Complete Technical Specifications
- Part Number: 330904-00-24-50-02-00
- Series / Platform: Bently Nevada 3300 XL NSv
- Transducer Type: Eddy-current non-contact proximity probe
- Measurement Range: 0 – 90 mil pp (0 – 2.286 mm pp) radial vibration
- Sensitivity: 200 mV/mil (7.87 V/mm) nominal
- Frequency Response: DC to 10,000 Hz (–3 dB)
- Operating Temperature: –35 °C to +177 °C (probe tip); –35 °C to +85 °C (driver)
- Extension Cable Length: 24 inches (610 mm)
- Armored Cable Length: 5 metres (50 dm)
- Connector Type: 02-00 standard termination
- Supply Voltage: –24 VDC (nominal)
- Output Signal: –2 VDC to –18 VDC (linear range)
- Target Material: AISI 4140 steel or equivalent ferromagnetic alloy
- Probe Tip Diameter: 8 mm (standard NSv geometry)
- Ingress Protection: IP67 (probe assembly)
- Approvals / Certifications: CE, ATEX, IECEx (consult datasheet for zone classification)
- Weight: ~40 g (probe + driver assembly)
- Country of Origin: United States
Proven Application Environments
- Steam and gas turbines (power generation, combined-cycle plants)
- Centrifugal and axial compressors (upstream & downstream oil and gas)
- Boiler feed pumps and large motor-driven equipment
- Gearboxes and expanders in petrochemical processes
- Hydro turbines and pump-storage facilities
- Marine propulsion and offshore platform machinery
Engineering Advantages
- Non-contact measurement eliminates mechanical wear and enables continuous 24/7 monitoring without process interruption.
- Wide frequency bandwidth (DC–10 kHz) captures both slow-roll runout and high-frequency sub-synchronous instabilities.
- Factory-matched probe/driver pair ensures calibration traceability and eliminates field-matching errors.
- Armored cable construction resists oil, steam, and chemical exposure in harsh plant environments.
- Direct compatibility with Bently Nevada 3500 Series, 3300 XL, and System 1 software — no signal conditioning adapters required.
- API 670 compliant design supports machinery protection system audits and insurance requirements.
System Architecture & Signal Flow
The 330904-00-24-50-02-00 operates as a three-component eddy-current system:
- Probe (Sensor): Generates a high-frequency electromagnetic field (typically 1 MHz). As the conductive shaft surface approaches or recedes, eddy currents alter the field impedance.
- Extension Cable (24 in / 610 mm): Transmits the oscillator signal between probe and driver with controlled impedance to maintain calibration accuracy.
- Driver / Oscillator-Demodulator: Converts the impedance variation into a DC-proportional voltage output (–2 V to –18 V), which feeds directly into the 3300 XL or 3500 monitor input card.
The linear output range corresponds to a gap of approximately 10–90 mil (0.25–2.29 mm), with the nominal gap set at 50 mil (1.27 mm) for optimal dynamic range.
Sourcing & Quality Verification
- All units sourced through verified industrial surplus and authorized distribution channels.
- Each assembly undergoes incoming inspection: visual, dimensional, and functional output verification against Bently Nevada factory calibration data.
- Serialized traceability records maintained for every unit shipped.
- Original OEM packaging and documentation preserved where available.
- Certificate of Conformance (CoC) available upon request.
Procurement Process
- Confirm compatibility: Verify your existing driver/monitor rack accepts the 330904 probe series (3300 XL NSv signal conditioning required).
- Specify cable configuration: This listing covers the 24-in extension / 5-m armored cable variant. Contact us for alternative lengths.
- Request a quote or place order: Add to cart or contact support@konmask.com for volume pricing and lead time confirmation.
- Receive & verify: Inspect upon delivery; our team provides post-sale technical support for installation and commissioning queries.
Technical FAQ
Q: Is this a complete system or probe-only?
A: This part number is a complete proximity transducer system including probe, 24-inch extension cable, 5-metre armored cable, and driver — ready for installation.
Q: Which Bently Nevada monitors is this compatible with?
A: Compatible with 3300 XL, 3500 Series (with NSv input cards), and System 1 software. Not compatible with 7200 Series or non-Bently eddy-current systems without recalibration.
Q: Can I use a different target material?
A: The system is calibrated for AISI 4140 steel. Other ferromagnetic alloys require a target material correction factor per Bently Nevada application note AN-028.
Q: What is the lead time?
A: In-stock units typically ship within 1–3 business days. Contact us to confirm current availability.
Q: Do you provide calibration certificates?
A: Factory calibration data is available where original documentation is retained. Third-party recalibration can be arranged upon request.
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