Bently Nevada 330104-05-09-50-02-CN – 8 mm Proximity Transducer System | 3300 XL Series
Engineering Background: The Bently Nevada 3300 XL Series represents the industry benchmark for non-contact eddy-current proximity measurement in rotating machinery protection. Engineered to API 670 standards, this system delivers sub-micron resolution displacement sensing in the harshest industrial environments — from petrochemical compressors to power-generation turbines.
Product Positioning: The 330104-05-09-50-02-CN is an 8 mm diameter probe configured with a 5-metre (16.4 ft) integral cable, 9-metre (29.5 ft) extension cable, and a 50 Ω system impedance, designed for direct integration with Bently Nevada 3300 XL monitor racks. It is the preferred choice for procurement engineers requiring a drop-in replacement or new-build installation with full OEM traceability.
Complete Technical Specifications
- Part Number: 330104-05-09-50-02-CN
- Series / Platform: Bently Nevada 3300 XL
- Probe Diameter: 8 mm
- Probe Cable Length: 5 m (16.4 ft) integral
- Extension Cable Length: 9 m (29.5 ft)
- System Impedance: 50 Ω
- Connector Type: -02 (standard BNC-compatible)
- Approvals / Certification: CN (China National certification variant)
- Measurement Principle: Eddy-current (non-contact)
- Linear Range: 0.25 mm – 2.25 mm (10 mil – 90 mil)
- Scale Factor: 7.87 V/mm (200 mV/mil)
- Frequency Response: DC – 10,000 Hz (–3 dB)
- Supply Voltage: –24 VDC (nominal)
- Temperature Range (Probe): –35 °C to +177 °C (–31 °F to +351 °F)
- Temperature Range (Driver/Extension): –35 °C to +85 °C
- Target Material: AISI 4140 steel (standard); other alloys with calibration
- Weight: Approx. 80 g (probe assembly)
- Compatible Monitors: 3300/16, 3300/20, 3500/40M, 3500/42M, 3500/44M, 3500/46M
Proven Application Environments
- Centrifugal & axial compressors (API 670 machinery protection)
- Steam and gas turbines — radial vibration & axial position monitoring
- Pumps, fans, and gearboxes in continuous-process plants
- Petrochemical refineries, LNG terminals, and offshore platforms
- Power generation — combined-cycle and nuclear auxiliary systems
- Pulp & paper, mining, and heavy industrial rotating equipment
Engineering Advantages
- API 670 Compliant: Meets the mandatory machinery protection standard for critical rotating equipment.
- Non-Contact Measurement: Zero mechanical wear; suitable for continuous 24/7 operation.
- High Frequency Response: DC to 10 kHz bandwidth captures sub-synchronous, synchronous, and super-synchronous vibration components.
- Integral Cable Design: Eliminates field-splice failure points; maintains calibrated system impedance.
- CN Certification Variant: Pre-approved for Chinese national regulatory compliance — reduces commissioning lead time in domestic projects.
- OEM Traceability: Full Bently Nevada part number traceability for insurance, audit, and warranty documentation.
System Architecture & Signal Flow
The 330104-05-09-50-02-CN operates as a three-component eddy-current system:
- Probe (330104): Generates a high-frequency electromagnetic field; detects gap change to the rotating target.
- Extension Cable (330130 / 330180 series): Transmits the raw oscillator signal with controlled impedance over the 9 m run.
- Driver / Proximitor® (3300 XL 8 mm Driver): Conditions the signal, provides –24 VDC excitation, and outputs a calibrated DC voltage proportional to gap distance — directly compatible with 3300/3500 monitor inputs.
Output voltage: –10.4 VDC at 2.25 mm gap (full-scale); –2.0 VDC at 0.25 mm gap (near-scale). Alert and danger setpoints are configured in the monitor rack per API 670 Table 1.
Sourcing & Quality Verification
- All units sourced from authorized distribution channels or verified surplus with full documentation.
- Pre-shipment inspection: visual, dimensional, and functional bench test against OEM calibration curves.
- Serialized traceability records available upon request for critical-service applications.
- Packaging: anti-static foam, moisture-barrier bag, original or equivalent OEM carton.
- Shelf-life verified: cable insulation, connector integrity, and probe tip condition inspected prior to dispatch.
Procurement Process
- Submit RFQ: Email support@konmask.com with quantity, required delivery date, and project name.
- Receive Quote: Formal quotation with unit price, lead time, and shipping options within 24 business hours.
- Place Order: Purchase order accepted via email; payment terms discussed per account status.
- Inspection & Dispatch: Pre-shipment QC completed; tracking number issued within 1–2 business days of payment confirmation.
- Delivery: DHL / FedEx express worldwide; EXW Xiamen or CIF destination available.
Technical FAQ
Q: Is the 330104-05-09-50-02-CN a direct replacement for the 330104-05-09-50-02-00?
A: Yes. The -CN suffix denotes the China certification variant. Electrical and mechanical specifications are identical; it is a drop-in replacement for all 3300 XL 8 mm system installations.
Q: Can this probe be used with a 3500 series monitor?
A: Yes. The 3300 XL 8 mm probe system is fully compatible with Bently Nevada 3500/40M, 3500/42M, 3500/44M, and 3500/46M monitor modules when paired with the correct 3300 XL driver.
Q: What is the maximum operating temperature at the probe tip?
A: The probe is rated to +177 °C (+351 °F) at the tip. For applications exceeding this, consult Bently Nevada high-temperature probe variants (e.g., 330105 series).
Q: Do you provide calibration certificates?
A: Calibration documentation from the original manufacturer is provided where available. Third-party calibration can be arranged upon request for critical-service units.
Q: What is the lead time for in-stock units?
A: In-stock units ship within 1–2 business days. For out-of-stock items, typical lead time is 2–4 weeks depending on sourcing channel.
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