Bently Nevada 330104-00-08-10-02-00 — 8mm Eddy Current Proximity Probe | 3300 XL Series
Engineering Background
The Bently Nevada 3300 XL proximity probe system is the global benchmark for continuous, non-contact measurement of shaft radial vibration, axial position (thrust), and differential expansion in rotating machinery. Deployed across power generation, oil & gas, petrochemical, and heavy industrial facilities worldwide, the 3300 XL platform is fully compliant with API 670 machinery protection standards and is the preferred solution for turbine, compressor, and pump monitoring in safety-critical environments.
Product Positioning
The 330104-00-08-10-02-00 is an 8mm eddy current proximity probe designed for use within the Bently Nevada 3300 XL measurement chain. It operates in conjunction with a compatible extension cable and Proximitor® sensor to deliver a calibrated, linear output signal proportional to the gap between the probe tip and a conductive target surface. This part number encodes a specific cable length, connector type, and temperature rating, making it a direct, drop-in replacement for OEM-specified installations.
Complete Technical Specifications
| Part Number | 330104-00-08-10-02-00 |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Series | 3300 XL 8mm Proximity Probe System |
| Probe Tip Diameter | 8 mm |
| Probe Cable Length | 1.0 m (integral cable) |
| Extension Cable Compatibility | 3300 XL Series (330130 / 330180) |
| Proximitor® Compatibility | 3300 XL 8mm Proximitor® Sensor |
| Measurement Range (Linear) | 0.25 mm – 2.54 mm (10 – 100 mil) |
| Scale Factor (Nominal) | 7.87 V/mm (200 mV/mil) |
| Frequency Response | DC – 10,000 Hz (–3 dB) |
| Operating Temperature | –35°C to +177°C (–31°F to +350°F) |
| Target Material | AISI 4140 steel (standard); other alloys with calibration |
| Connector Type | Integral coaxial, reverse SMA compatible |
| Agency Approvals | CE, ATEX, IECEx (intrinsically safe configurations) |
| API Standard | API 670 (5th Edition) compliant |
| Weight | Approx. 100 g |
Proven Application Environments
- Steam & Gas Turbines — Radial shaft vibration monitoring on HP/LP turbine stages; axial thrust position measurement
- Centrifugal & Axial Compressors — API 670-compliant vibration protection on critical compressor trains in LNG, refinery, and pipeline service
- Pumps & Fans — Continuous shaft orbit and centerline monitoring for predictive maintenance programs
- Gearboxes — Gear mesh frequency analysis and shaft position trending
- Hydro Turbines & Motors — Low-speed shaft eccentricity and runout measurement
- Marine & Offshore Platforms — Vibration monitoring in ATEX/IECEx Zone 1 hazardous areas
Engineering Advantages
- Non-Contact Measurement — Zero mechanical wear; continuous operation without probe-to-shaft contact eliminates maintenance intervals
- DC Response — Measures both static position (gap) and dynamic vibration from 0 Hz, enabling thrust position and slow-roll runout capture
- High Frequency Bandwidth — 10 kHz flat response captures sub-synchronous, synchronous, and high-order harmonic components
- API 670 Compliance — Fully qualified for machinery protection systems; accepted by major EPC contractors and end-users globally
- Robust Construction — Stainless steel housing with hermetically sealed tip; rated for high-temperature, high-vibration, and chemically aggressive environments
- System Interoperability — Plug-compatible with existing 3300 XL Proximitor® sensors and 3500 Series monitoring racks without recalibration
System Architecture & Signal Flow
The 330104-00-08-10-02-00 operates as the sensing element in a three-component eddy current measurement chain:
- Proximity Probe (330104-00-08-10-02-00) — Generates a high-frequency electromagnetic field at the probe tip; gap changes modulate the field impedance
- Extension Cable (330130 / 330180 series) — Transmits the modulated RF signal from the probe to the Proximitor® with controlled impedance; total system cable length must match Proximitor® calibration
- Proximitor® Sensor (3300 XL 8mm) — Demodulates the RF signal and outputs a calibrated DC voltage (nominally –24 VDC bias, 200 mV/mil scale factor) to the monitoring system
Note: Probe, extension cable, and Proximitor® must be ordered and calibrated as a matched system. Mixing components from different series or manufacturers will invalidate calibration and may trigger false alarms.
Sourcing & Quality Verification
- All units sourced through verified industrial automation distributors and authorized surplus channels
- Each unit inspected for physical integrity: connector condition, cable jacket, probe tip, and part number label verification
- Functional testing available on request; calibration certificates provided where applicable
- Traceability documentation (original packaging, date codes, country of origin) available for critical plant applications
- Konmask.com specializes in genuine, traceable Bently Nevada components — no counterfeit risk
Procurement Process
- Confirm Part Number — Verify 330104-00-08-10-02-00 against your existing installation drawing or Bently Nevada system documentation
- Check System Compatibility — Confirm your Proximitor® sensor and extension cable are 3300 XL 8mm series; total cable length must match Proximitor® calibration range
- Request Quote or Place Order — Contact Konmask.com via the form below or email [email protected] with your required quantity and delivery timeline
- Expedited Shipping Available — In-stock units can ship within 24–48 hours; DHL/FedEx international express available
- After-Sales Support — Technical assistance available for installation, commissioning, and system integration questions
Technical FAQ
Q: Can I use the 330104-00-08-10-02-00 probe with an older 3300 series (non-XL) Proximitor®?
A: Not recommended. The 3300 XL probe is optimized for the XL Proximitor® calibration. Using it with a legacy 3300 Proximitor® will result in scale factor errors and non-linear output. Always match probe and Proximitor® series.
Q: What is the maximum shaft surface speed for reliable measurement?
A: The eddy current principle is not surface-speed limited in the conventional sense. However, target surface finish (Ra ≤ 0.8 µm recommended) and runout (TIR ≤ 25 µm) must be within Bently Nevada specifications for accurate readings.
Q: Is this probe suitable for non-ferrous targets (e.g., titanium, Inconel)?
A: Yes, but a target-material-specific calibration curve must be applied. The standard 200 mV/mil scale factor is calibrated for AISI 4140 steel. Contact Konmask.com for calibration data on alternative alloys.
Q: What is the shelf life / storage requirement for unused probes?
A: Store in original packaging in a dry, temperature-controlled environment (–20°C to +70°C). Avoid exposure to strong magnetic fields or solvents. No defined shelf life under proper storage conditions.
Q: Do you provide ATEX/IECEx documentation for hazardous area installations?
A: Yes. Certification documentation is available upon request for units destined for Zone 1/Zone 2 classified areas. Please specify your area classification when ordering.
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