Bently Nevada 330104-00-06-05-02-CN – 8mm Eddy Current Proximity Probe | 3300 XL Series
Engineering Background: The Bently Nevada 3300 XL Series represents the industry benchmark for non-contacting eddy current measurement systems, engineered specifically for continuous vibration and position monitoring on critical rotating machinery. The 330104-00-06-05-02-CN is an 8mm diameter probe optimized for shaft radial vibration, axial position, and differential expansion measurement in demanding turbomachinery environments.
Product Positioning: Designed for procurement engineers and reliability teams requiring OEM-specification components for gas turbines, steam turbines, compressors, and large pumps. This probe integrates directly into existing Bently Nevada 3300 XL monitoring systems without recalibration, ensuring zero-compromise signal integrity and system compliance.
Complete Technical Specifications
- Part Number: 330104-00-06-05-02-CN
- Series: Bently Nevada 3300 XL
- Probe Diameter: 8 mm
- Cable Length: 5 m (standard)
- Extension Cable: 2 m
- Measurement Range: 0.25 mm – 2.25 mm (linear range)
- Scale Factor: 7.87 V/mm (200 mV/mil)
- Frequency Response: DC – 10,000 Hz (–3 dB)
- Operating Temperature: –35°C to +177°C (probe tip)
- Driver/Oscillator: Compatible with 3300 XL 11 mm Proximitor® Sensor
- Supply Voltage: –24 VDC (nominal)
- Output Voltage: –1 VDC to –17 VDC
- Connector Type: Integral armored cable with MIL-spec connector
- Ingress Protection: IP67
- Weight: 480 g (probe + cable assembly)
- Compliance: CE, RoHS, API 670 compatible
- Country of Origin: USA (OEM) / CN (authorized supply)
Proven Application Environments
- Gas turbine radial shaft vibration monitoring (API 670 installations)
- Steam turbine axial position and differential expansion measurement
- Centrifugal compressor rotor dynamic analysis
- Large boiler feed pump and motor bearing monitoring
- Petrochemical plant rotating equipment condition monitoring
- Power generation critical machinery protection systems
- Marine propulsion shaft monitoring
Engineering Advantages
- Direct OEM Replacement: Plug-and-play compatibility with all 3300 XL Proximitor® drivers — no recalibration required.
- Extended Frequency Bandwidth: DC–10 kHz response captures sub-synchronous, synchronous, and high-frequency vibration components critical for advanced diagnostics.
- High-Temperature Tolerance: Probe tip rated to +177°C, suitable for hot-section turbine bearing pedestals without derating.
- Armored Cable Construction: Stainless steel armor protects against mechanical damage, oil, and chemical exposure in harsh plant environments.
- Stable Scale Factor: Factory-calibrated 7.87 V/mm ensures consistent signal output across the full operating temperature range.
- API 670 Compliant: Meets the international standard for machinery protection systems, accepted by major EPC contractors and end-users globally.
System Architecture & Signal Flow
The 330104-00-06-05-02-CN operates as part of the Bently Nevada 3300 XL eddy current measurement chain:
- Probe (330104 series) → generates high-frequency electromagnetic field at tip
- Extension Cable (330130 series) → transmits RF signal with minimal loss over 2 m
- Proximitor® Sensor (3300 XL 11 mm driver) → demodulates signal, outputs –1 to –17 VDC proportional to gap
- Monitor (3500/40M or 3300 series) → processes voltage, applies alarm/trip logic per API 670
Total system cable length (probe + extension) must match the Proximitor® driver calibration. This assembly is pre-matched for standard 5 m + 2 m = 7 m total system length.
Sourcing & Quality Verification
- All units sourced through authorized industrial distribution channels with full traceability.
- Each probe undergoes incoming inspection: dimensional check, scale factor verification, and insulation resistance test prior to dispatch.
- Original manufacturer documentation and calibration certificates available upon request.
- Serialized packaging with tamper-evident seals — counterfeit risk eliminated.
- Stock held in ESD-safe, climate-controlled warehouse to preserve sensor calibration integrity.
Procurement Process
- Step 1: Confirm part number 330104-00-06-05-02-CN matches your existing system cable length and Proximitor® driver model.
- Step 2: Submit inquiry or place order directly — volume pricing available for 5+ units.
- Step 3: Receive order confirmation with lead time and shipping details within 24 hours.
- Step 4: Shipment dispatched with packing list, test report, and commercial invoice for customs clearance.
- Step 5: Post-delivery technical support available via email or phone for installation verification.
Technical FAQ
Q: Is this probe compatible with the 3300 XL 5 mm Proximitor® driver?
A: No. The 330104 8mm probe is calibrated for the 3300 XL 11 mm Proximitor® driver. Using a mismatched driver will result in incorrect scale factor and invalid vibration readings.
Q: Can the total cable length be extended beyond 7 m?
A: No. The 3300 XL system is calibrated for a fixed total cable length (probe + extension). Altering cable length requires a different probe/extension/driver combination and recalibration.
Q: What target material is this probe calibrated for?
A: Factory calibration is performed on AISI 4140 steel. For non-standard target materials (stainless steel, titanium, Inconel), a material correction factor must be applied — contact our engineering team for guidance.
Q: Is this probe suitable for thrust position measurement?
A: Yes. The 330104-00-06-05-02-CN can be used for axial position (thrust) measurement when paired with the appropriate 3500/40M thrust monitor channel, within the specified linear range of 0.25–2.25 mm.
Q: Do you provide ATEX/IECEx certified versions?
A: Intrinsically safe variants are available under separate part numbers. Contact us with your hazardous area classification (Zone 1/Zone 2) for the correct certified assembly.
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