Bently Nevada 330908-00-18-10-02-05 – Proximity Transducer System | 3300 XL Series
Engineering Background: The Bently Nevada 3300 XL Proximity Transducer System is the industry benchmark for non-contact, continuous shaft vibration and position measurement in rotating machinery. Engineered to API 670 standards, this system delivers the precision and reliability demanded by petrochemical, power generation, and heavy industrial environments worldwide.
Product Positioning: The 330908-00-18-10-02-05 is a complete proximity transducer assembly configured for 18-inch (457 mm) cable extension, 10-32 UNF thread, and 5-meter (16.4 ft) armored extension cable. It is designed for direct integration with Bently Nevada 3300 series monitors and is the preferred choice for procurement engineers specifying OEM-equivalent replacement or new installation in critical machinery protection systems.
Complete Technical Specifications
- Part Number: 330908-00-18-10-02-05
- Series / Platform: Bently Nevada 3300 XL Proximity Transducer System
- Transducer Type: Eddy-current, non-contact proximity
- Probe Thread: 10-32 UNF
- Cable Extension Length: 18 inches (457 mm)
- Extension Cable Length: 5 meters (16.4 ft), armored
- Sensitivity: 200 mV/mil (7.87 V/mm)
- Linear Range: 10–90 mil (0.25–2.29 mm)
- Frequency Response: DC to 10,000 Hz (–3 dB)
- Operating Temperature: –35°C to +121°C (probe); –35°C to +66°C (driver)
- Supply Voltage: –24 VDC (nominal)
- Output: –1 to –21 VDC (linear range)
- Target Material: AISI 4140 steel (standard); other ferrous/non-ferrous per calibration
- Ingress Protection: IP67 (probe assembly)
- Compliance: API 670, CE, RoHS
- HS Code: 903180
- Country of Origin: United States
- Weight: 230 g (approx.)
Proven Application Environments
- Steam and gas turbines (power generation, combined-cycle plants)
- Centrifugal and axial compressors (upstream oil & gas, LNG)
- Pumps and fans in critical service (refinery, petrochemical)
- Gearboxes and expanders requiring continuous shaft orbit monitoring
- Marine propulsion and offshore platform rotating equipment
- Pulp & paper and steel mill drive trains
Engineering Advantages
- API 670 Compliant: Meets the most stringent international standard for machinery protection instrumentation, ensuring acceptance by EPC contractors and end-user inspection teams.
- 3300 XL Platform Compatibility: Direct plug-and-play replacement for existing 3300 XL installations — no recalibration of the monitor required when replacing like-for-like.
- Armored Extension Cable: Stainless steel armor provides mechanical protection in harsh plant environments, reducing cable damage and unplanned downtime.
- Wide Temperature Range: Qualified for both cryogenic and high-temperature service zones within a single plant layout.
- High Frequency Response: DC to 10 kHz bandwidth captures sub-synchronous, synchronous, and high-frequency vibration events critical for early fault detection.
System Architecture & Signal Flow
The 330908-00-18-10-02-05 system consists of three integrated components operating as a calibrated set:
- Probe (330908): Eddy-current sensing element, threaded 10-32 UNF, installed in the bearing housing bracket at the specified gap (nominally 50 mil / 1.27 mm from target).
- Extension Cable (330130-xx-xx): 18-inch armored cable transmits the high-frequency oscillator signal from probe to driver with minimal signal loss.
- Driver / Oscillator-Demodulator (330180-xx-xx): Converts the impedance change at the probe tip into a calibrated DC voltage output (–1 to –21 VDC), fed directly to the 3300 XL monitor input card.
Note: All three components are factory-matched and calibrated as a system. Substituting individual components from different serial lots may affect system accuracy and API 670 compliance.
Sourcing & Quality Verification
- Source: Konmask.com sources Bently Nevada instrumentation from authorized distribution channels and verified surplus inventories with full traceability documentation.
- Inspection: Each unit undergoes incoming inspection including visual examination, connector integrity check, and cable continuity verification prior to dispatch.
- Documentation: Certificate of conformance (CoC) and original manufacturer datasheet available upon request. Factory calibration certificates provided where available.
- Packaging: Ships in original or equivalent ESD-safe packaging with desiccant. Armored cable coiled and secured to prevent kinking.
Procurement Process
- Confirm Part Number: Verify 330908-00-18-10-02-05 against your BOM or existing installation tag. Cross-reference with Bently Nevada catalog if substituting from an older part number.
- Request Quote: Contact support@konmask.com for volume pricing, lead time confirmation, and documentation package.
- Place Order: Purchase directly via this listing or via PO/proforma invoice for B2B procurement workflows.
- Shipping: DHL / FedEx international express available. Export documentation (commercial invoice, packing list, CoC) provided for customs clearance.
- After-Sales: Technical support available for installation gap-setting guidance and monitor integration questions.
Technical FAQ
Q: Is this a complete system or individual components?
A: This listing covers the complete factory-matched proximity transducer system (probe + extension cable + driver), calibrated as a set per Bently Nevada specification.
Q: Can this be used with non-Bently Nevada monitors?
A: The –24 VDC supply and –1 to –21 VDC output are compatible with many third-party monitors that accept standard eddy-current transducer inputs. Verify input impedance and supply voltage requirements with your monitor manufacturer before installation.
Q: What is the recommended installation gap?
A: Bently Nevada specifies a nominal gap of 50 mil (1.27 mm) for AISI 4140 steel targets, placing the output at approximately –10.4 VDC at mid-range. Refer to the system TN for target-material-specific gap tables.
Q: Are calibration certificates available?
A: Factory calibration certificates are provided where available with surplus stock. New production units include full factory CoC. Please specify your documentation requirements at time of order.
Q: What is the lead time?
A: In-stock units ship within 1–3 business days. Contact us for current stock status and expedited options.
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