Bently Nevada 330103-05-12-05-02-00 – Eddy-Current Proximity Transducer | 3300 XL Series Platform
Engineering Background
The 330103-05-12-05-02-00 is a factory-configured proximity transducer from Bently Nevada’s 3300 XL Series — the industry benchmark for continuous, non-contact shaft vibration and position measurement in rotating machinery. Engineered to operate within the complete 3300 XL signal chain (transducer → extension cable → proximitor/oscillator), this unit delivers the precision eddy-current sensing demanded by API 670-compliant machinery protection systems.
Product Positioning
Designed for procurement engineers and reliability teams sourcing certified replacement or expansion components for turbines, compressors, pumps, and motors. The 330103-05-12-05-02-00 is a direct, drop-in compatible transducer for existing 3300 XL installations, minimizing re-commissioning time and eliminating calibration uncertainty.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number / SKU | 330103-05-12-05-02-00 |
| Series / Platform | Bently Nevada 3300 XL Proximity Transducer System |
| Sensing Technology | Eddy-Current (Non-Contact) |
| Probe Tip Diameter | 5 mm (0.197 in) |
| Cable Length (Probe) | 0.5 m (500 mm) integral armored cable |
| Extension Cable Length | 1.2 m (field-selectable per system config) |
| Thread Size | M5 × 0.5 |
| Linear Range | 0.25 – 2.25 mm (10 – 90 mil) |
| Scale Factor (Nominal) | 7.87 V/mm (200 mV/mil) |
| Frequency Response | DC – 10,000 Hz (–3 dB) |
| Supply Voltage | –24 VDC (from Proximitor/Oscillator) |
| Output Voltage Range | –1 VDC to –21 VDC |
| Temperature Range (Operating) | –35°C to +177°C (–31°F to +351°F) |
| Target Material | AISI 4140 Steel (standard); other alloys require calibration verification |
| Connector Type | Integral coaxial, mates with 3300 XL extension cable |
| Agency Approvals | CE, ATEX (consult datasheet for zone classification) |
| Weight | Approx. 40 g |
| Country of Origin | United States |
| HS Code | 9031.80.9090 |
Proven Application Environments
- Steam & Gas Turbines — Continuous shaft radial vibration monitoring per API 670
- Centrifugal Compressors — Rotor position (thrust) and differential expansion measurement
- Pumps & Fans — Bearing housing vibration and shaft eccentricity detection
- Electric Motors (>500 kW) — Air-gap monitoring and rotor orbit analysis
- Gearboxes — Gear mesh frequency and lateral vibration trending
- Petrochemical & Refinery Trains — SIL-rated machinery protection loops
Engineering Advantages
- Non-Contact Measurement — Zero mechanical wear; suitable for continuous 24/7 operation at high shaft speeds
- Wide Thermal Tolerance — Validated to +177°C, covering most hot-section turbine bearing pedestals without derating
- System-Matched Scale Factor — Factory-calibrated 7.87 V/mm ensures plug-and-play compatibility with 3300 XL Proximitor modules and Bently Nevada 3500 rack monitors
- Armored Cable Construction — Stainless-steel braid protects signal integrity in high-vibration, oil-mist environments
- API 670 Compliance — Meets the measurement chain requirements for machinery protection systems in critical rotating equipment
- Broad Target Compatibility — Calibrated for AISI 4140; application notes available for Inconel, titanium, and other alloys
System Architecture & Signal Flow
The 330103-05-12-05-02-00 operates as the sensing element in a three-component eddy-current chain:
- Proximity Probe (330103-05-12-05-02-00) — Generates the high-frequency electromagnetic field; gap change modulates oscillator frequency
- Extension Cable (330130-XX-XX) — Transmits the modulated RF signal from probe to Proximitor with controlled impedance
- Proximitor / Oscillator (330180-X1-CN) — Demodulates signal, outputs –24 V-referenced DC voltage proportional to gap; feeds monitor rack
Output feeds directly into Bently Nevada 3500 Series monitor cards (3500/42, 3500/45, 3500/46) or legacy 3300 monitors for alarm/trip processing.
Sourcing & Quality Verification
- Units sourced from authorized distributors and verified surplus channels with full traceability documentation
- Each unit inspected for: connector integrity, cable continuity, tip condition, and label legibility
- Functional test report available upon request for critical-service applications
- Original Bently Nevada packaging and documentation preserved where available
- Certificate of Conformance (CoC) provided with every shipment
Procurement Process
- Confirm Compatibility — Verify your Proximitor model and extension cable length match the 330103-05-12-05-02-00 system configuration
- Request Quote — Contact support@konmask.com for volume pricing, lead time, and CoC documentation
- Place Order — Secure checkout via Konmask.com; wire transfer and corporate PO accepted for B2B orders
- Shipping — DHL / FedEx Express worldwide; export documentation (commercial invoice, packing list, HS 9031.80.9090) included
- After-Sales Support — Technical application support available post-delivery for installation and commissioning queries
Technical FAQ
Q: Is the 330103-05-12-05-02-00 interchangeable with the 330103-00-08-10-02-00?
A: No. The part number encodes probe tip size, cable length, and connector configuration. Always match all six numeric segments to your existing system BOM.
Q: Can this probe be used with a non-Bently Nevada monitor?
A: The probe is compatible with any eddy-current monitor accepting a –24 VDC-powered, 200 mV/mil scale-factor input. Verify input impedance and supply voltage before substitution.
Q: What is the recommended gap voltage at mid-range?
A: Approximately –10.5 VDC at 1.25 mm gap (mid-linear range), with the Proximitor powered at –24 VDC nominal.
Q: Do you provide calibration certificates?
A: Factory calibration data is available for new units. For surplus units, we offer third-party calibration verification upon request at additional cost.
Q: What is the minimum order quantity?
A: Single-unit orders are accepted. Volume discounts apply for orders of 5+ units.
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