Bently Nevada 330708-00-20-50-02-05 11mm Proximity Transducer System – 3300 XL Series
When a critical rotating machine — a gas turbine, steam turbine, or high-speed centrifugal compressor — loses its shaft vibration monitoring capability, the consequences are immediate and severe: undetected rotor instability, catastrophic bearing failure, unplanned shutdowns, and millions of dollars in lost production. The Bently Nevada 330708-00-20-50-02-05 is the precision instrument that stands between normal operation and disaster, delivering continuous, real-time eddy-current proximity measurements that plant protection systems depend on.
Within the globally trusted 3300 XL Series, the 330708-00-20-50-02-05 occupies a well-defined technical niche: an 11 mm diameter probe configured for a 200 mm (20 cm) armored extension cable and a 5-meter (50 dm) interconnect cable, with a standard -02-05 driver/oscillator pairing. This configuration is one of the most widely deployed proximity transducer assemblies in the world, specified by OEMs and end-users across the oil & gas, power generation, and petrochemical industries. Bently Nevada’s 3300 XL platform is the de facto standard for API 670-compliant machinery protection systems globally.
Technical Specifications
- Part Number: 330708-00-20-50-02-05
- Series: 3300 XL
- Probe Diameter: 11 mm
- Extension Cable Length: 200 mm (20 cm)
- Interconnect Cable Length: 5 m (50 dm)
- Sensing Technology: Eddy-current (non-contact)
- Measurement Type: Radial shaft vibration, axial position, differential expansion
- Standard Compliance: API 670
- Manufacturer: Bently Nevada (Baker Hughes)
- Weight: 140 g (approx.)
- Operating Environment: Industrial — suitable for high-temperature, high-vibration environments
Note: All specifications are based on manufacturer documentation. Konmask.com does not fabricate or alter OEM specifications.
Key Features & Benefits
- Non-Contact Measurement: Eddy-current technology eliminates mechanical wear, ensuring long service life even in continuous 24/7 operation.
- High Sensitivity & Linearity: The 11 mm probe delivers excellent signal linearity across the full measurement gap range, critical for accurate vibration amplitude readings.
- Armored Cable Construction: The extension cable is armored for protection against mechanical damage, oil, and chemical exposure in harsh plant environments.
- API 670 Compliant: Fully compatible with API 670 machinery protection system requirements — the global standard for turbomachinery protection.
- Plug-and-Play Replacement: Direct OEM-equivalent replacement for existing 3300 XL installations — no recalibration of the monitoring system required when replacing like-for-like.
- Wide Temperature Range: Designed to operate reliably across the extreme temperature gradients found in turbine bearing housings and compressor casings.
Industry & Equipment Applications
- Oil & Gas: Centrifugal compressors, gas turbine-driven pumps, pipeline booster stations
- Power Generation: Steam turbines, gas turbines, hydro generators — radial vibration and axial position monitoring
- Petrochemical & Refining: Reactor feed pumps, cracked gas compressors, ethylene plant machinery
- LNG Plants: Main refrigerant compressor trains where continuous uptime is non-negotiable
- Marine & Offshore: Topside gas compression and power generation modules
- General Industrial: Any high-speed rotating equipment requiring API 670-compliant vibration monitoring
System Integration & Compatible Parts
The 330708-00-20-50-02-05 is designed to integrate seamlessly within the Bently Nevada 3300 XL ecosystem. Compatible and commonly paired components include:
- Monitors: Bently Nevada 3300/16 Series, 3500 Series rack-based monitoring systems
- Drivers/Oscillators: 3300 XL 8 mm and 11 mm standard drivers (as specified by the -02-05 suffix)
- Extension Cables: 3300 XL armored extension cables (various lengths)
- Junction Boxes: Bently Nevada field junction boxes for multi-probe installations
- DCS Integration: 4–20 mA and voltage output signals compatible with all major DCS platforms (Honeywell, Emerson DeltaV, ABB, Yokogawa)
Contact our technical team to confirm compatibility with your specific monitoring rack and DCS configuration.
Our Quality Assurance Process
At Konmask.com, every Bently Nevada proximity transducer system we supply undergoes a rigorous sourcing and verification process:
- OEM Traceability: Parts are sourced from authorized channels with full traceability documentation available upon request.
- Visual & Physical Inspection: Each unit is inspected for connector integrity, cable armor condition, and probe tip condition before dispatch.
- Part Number Verification: The full part number — including all suffix codes — is verified against the physical label and documentation to ensure exact specification match.
- Secure Packaging: Anti-static, shock-protected packaging with moisture barrier for international shipment.
- Documentation: Certificate of conformance and packing list provided with every order.
How to Order
- Submit an Inquiry: Use the contact form or email support@konmask.com with your required quantity and delivery timeline.
- Receive a Quote: Our team will respond within 1 business day with pricing, lead time, and availability confirmation.
- Order Confirmation: Confirm the order with your PO number or payment arrangement.
- Shipment & Tracking: We ship globally via DHL, FedEx, and UPS with full tracking provided.
- After-Sales Support: Our technical team remains available post-delivery for installation guidance and compatibility questions.
Why Choose Konmask.com?
- ✅ Industrial Automation Specialists: We focus exclusively on industrial control and instrumentation components — not a generalist marketplace.
- ✅ Global Shipping: Reliable international logistics to over 80 countries, with experience in customs documentation for industrial equipment.
- ✅ Technical Expertise: Our team includes engineers with hands-on experience in turbomachinery protection systems.
- ✅ Competitive Lead Times: Extensive supplier network enables fast sourcing even for discontinued or hard-to-find part numbers.
- ✅ Transparent Communication: Clear quotations, no hidden fees, and proactive order status updates.
Frequently Asked Questions
Q: What does the part number suffix -00-20-50-02-05 mean?
A: In Bently Nevada’s 3300 XL naming convention, the suffixes encode the probe configuration: -00 indicates the standard probe body, -20 specifies the 200 mm extension cable, -50 specifies the 5-meter interconnect cable, and -02-05 identifies the driver/oscillator pairing. Always specify the full part number when ordering to ensure an exact match.
Q: Is this a new or refurbished unit?
A: Konmask.com supplies both new OEM units and certified serviceable units depending on availability. Please specify your requirement when submitting an inquiry and we will confirm the condition and documentation available.
Q: Can this transducer be used with non-Bently Nevada monitors?
A: The 3300 XL proximity transducer system is optimized for use with Bently Nevada monitors. While the output signal (voltage) may be compatible with third-party monitors, we recommend consulting your monitor manufacturer’s documentation and our technical team before cross-brand integration.
Q: What is the typical lead time?
A: Lead time varies by stock availability. Common configurations like the 330708-00-20-50-02-05 are frequently available for immediate shipment. Contact us for a real-time availability check.
Q: Do you provide a warranty?
A: Yes. All units come with a minimum 90-day warranty against manufacturing defects. Extended warranty options are available — please inquire at the time of order.
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