Bently Nevada 330101-00-18-10-02-CN – Eddy Current Proximity Probe | 3300 XL 8mm Platform
Engineering Background: The Bently Nevada 3300 XL series represents the industry benchmark for non-contact vibration and position measurement in rotating machinery protection systems. Deployed across power generation, oil & gas, petrochemical, and heavy industrial sectors, these probes operate on the eddy current principle to deliver continuous, high-resolution shaft displacement data without physical contact — eliminating wear and enabling permanent installation in the most demanding environments.
Product Positioning: The 330101-00-18-10-02-CN is an 8mm diameter proximity probe configured for standard 18-inch (457mm) armored cable with a 10-32 UNF reverse-mount connector and CN (Chinese market) certification. It is the primary sensing element in a 3300 XL transducer system, working in conjunction with an extension cable (330130 series) and proximitor/driver (3300 XL series) to form a complete API 670-compliant measurement chain.
Complete Technical Specifications
- Part Number: 330101-00-18-10-02-CN
- Series / Platform: Bently Nevada 3300 XL
- Probe Diameter: 8 mm
- Cable Length: 18 inches (457 mm) armored integral cable
- Connector Type: 10-32 UNF reverse-mount (male)
- Certification Variant: CN (China market)
- Operating Principle: Eddy current (non-contact)
- Measurement Range: 0.25 mm – 2.25 mm (10 mil – 90 mil) linear range
- Scale Factor: 7.87 V/mm (200 mV/mil) nominal
- Frequency Response: DC to 10,000 Hz (–3 dB)
- Operating Temperature: –35°C to +177°C (probe body)
- Target Material: AISI 4140 steel or equivalent (per BN calibration standard)
- Housing Material: Stainless steel body, PTFE-jacketed cable
- Ingress Protection: IP67 (probe tip)
- Weight: ~60 g
- Compliance: API 670 (5th Edition), CE, CN certification
- Compatible Proximitor: 3300 XL NSv, 3300 XL 8mm Standard
- Compatible Extension Cable: 330130-xx-xx-xx series
Proven Application Environments
- Power Generation: Steam turbine shaft radial vibration and axial position monitoring
- Oil & Gas: Centrifugal compressor and gas turbine bearing protection per API 670
- Petrochemical: Reactor agitator and pump shaft displacement measurement
- Marine & Offshore: Propulsion shaft monitoring in high-humidity environments
- Heavy Industry: Rolling mill and paper machine roll position feedback
- Condition Monitoring: Continuous online vibration trending integrated with DCS/SCADA
Engineering Advantages
- Non-contact measurement eliminates mechanical wear — service life exceeds 20 years in continuous operation
- Flat frequency response DC to 10 kHz captures both slow-roll runout and high-frequency sub-synchronous instabilities
- Armored integral cable resists oil, coolant, and mechanical abrasion in harsh machine environments
- Factory-matched system calibration — probe, extension cable, and proximitor are calibrated as a matched set for ±1% scale factor accuracy
- API 670 compliance satisfies machinery protection requirements for critical rotating equipment without additional engineering justification
- CN certification ensures regulatory acceptance for installations in mainland China without re-certification overhead
System Architecture & Signal Flow
The 3300 XL transducer system operates as a three-component chain:
- Proximity Probe (330101-00-18-10-02-CN) — Generates an oscillating electromagnetic field at the probe tip. Eddy currents induced in the conductive target shaft modulate the field impedance proportional to gap distance.
- Extension Cable (330130 series) — Transmits the modulated RF signal from the probe to the proximitor with controlled impedance. Total probe + extension cable length must equal the system-calibrated length (typically 5m or 9m).
- Proximitor / Driver (3300 XL) — Demodulates the RF signal and outputs a DC voltage proportional to gap (–24 VDC supply, output range –2 VDC to –18 VDC). Signal feeds directly to vibration monitors, DCS analog input cards, or safety instrumented systems.
Note: Probe, extension cable, and proximitor must be ordered as a matched system. Mixing components from different calibration lots will degrade scale factor accuracy.
Sourcing & Quality Verification
Konmask.com sources Bently Nevada components through authorized industrial distribution channels. Each unit supplied is:
- Inspected for physical integrity (connector threads, cable jacket, probe tip condition)
- Verified against OEM part number labeling and date codes
- Shipped with original manufacturer packaging where available
- Traceable to batch documentation upon request for critical installations
We do not supply remanufactured, repaired, or relabeled units. If your project requires a Factory Acceptance Test (FAT) certificate or third-party inspection, contact our technical team prior to order placement.
Procurement Process
- Submit RFQ — Email support@konmask.com with your required quantity, delivery timeline, and project details.
- Quotation & Lead Time Confirmation — We respond within 1 business day with pricing, availability, and estimated delivery.
- Order Placement — Purchase order accepted via email. Proforma invoice issued for payment processing.
- Shipment & Documentation — Ships via DHL / FedEx with commercial invoice, packing list, and available traceability documents.
- After-Sales Support — Technical support available for installation verification and system commissioning questions.
Technical FAQ
Q: Can I use this probe with an existing 3300 series (non-XL) proximitor?
A: No. The 3300 XL probe is not backward-compatible with the legacy 3300 proximitor due to different oscillator frequencies. The complete system (probe + extension + proximitor) must be 3300 XL series.
Q: What is the maximum cable run from probe to proximitor?
A: The combined probe integral cable + extension cable must equal the calibrated system length. Standard options are 5m and 9m total. Exceeding the calibrated length degrades scale factor accuracy and is not recommended.
Q: Is the -CN suffix only a certification difference, or are there hardware changes?
A: The CN suffix denotes Chinese market certification compliance. The probe hardware, calibration, and performance specifications are identical to the standard international variant.
Q: What target materials are compatible?
A: The probe is factory-calibrated for AISI 4140 steel. Other ferromagnetic or non-ferromagnetic materials (e.g., Inconel, titanium) require a material correction factor — consult Bently Nevada application engineering or contact Konmask for guidance.
Q: Do you offer system-matched sets (probe + extension cable + proximitor)?
A: Yes. Contact us with your system requirements and we will configure a matched set with consistent calibration documentation.
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Contact: support@konmask.com | +0086 19859288691
