Bently Nevada 330907-05-30-10-02-00 Reverse Mount Proximity Probe | Replacement, Equivalent & Selection Guide
In rotating machinery protection, a failed or misspecified proximity probe doesn’t just cause downtime — it silences the early-warning system that prevents catastrophic bearing failures, shaft rubs, and unplanned shutdowns. The Bently Nevada 330907-05-30-10-02-00 is a precision reverse-mount eddy-current proximity probe engineered for the 3300 XL Series monitoring system, delivering sub-micron displacement resolution in the harshest industrial environments. When this probe is absent or substituted with an incompatible part, your vibration monitoring loop loses calibration integrity — and your machinery protection system is effectively blind.
Within the 3300 XL product family, the 330907-05-30-10-02-00 occupies a specialized niche: its reverse-mount configuration allows installation from the non-drive end of bearing housings where conventional probes cannot reach. Globally, Bently Nevada 3300 Series probes are the de facto standard in turbomachinery protection across power generation, oil & gas, and petrochemical industries, with hundreds of thousands of units deployed on critical rotating assets worldwide.
Technical Specifications
- Part Number: 330907-05-30-10-02-00
- Series: Bently Nevada 3300 XL
- Probe Type: Eddy-Current Proximity Probe (Reverse Mount)
- Tip Diameter: 5 mm
- Cable Length: 30 cm (integral)
- Extension Cable: Compatible with 330130 / 330180 series
- Conditioner: 3300 XL 8mm / 3300 XL 11mm proximitor
- Measurement Range: 0.25 mm – 2.25 mm (linear range)
- Sensitivity: 7.87 V/mm (200 mV/mil)
- Supply Voltage: -24 VDC (nominal)
- Operating Temperature: -35°C to +177°C
- Target Material: AISI 4140 steel or equivalent
- Weight: 290 g (with cable)
- Approvals: CE, ATEX (refer to datasheet for zone classification)
Note: Specifications are based on published Bently Nevada documentation. Always verify against the official datasheet for your specific application.
Compatible Replacement & Equivalent Models
When sourcing a replacement for the 330907-05-30-10-02-00, the following models may be considered depending on system configuration and target material. Always verify system compatibility before substitution:
- 330905-00-30-10-02-00 — Standard (non-reverse) 5mm probe, same cable length; suitable where reverse mount is not required
- 330907-05-50-10-02-00 — Reverse mount, 5mm tip, 50 cm cable; use when extended reach is needed
- 330780-50-00 — 8mm standard probe; requires proximitor change to 3300 XL 8mm
- 330930-065-00-05 — Velomitor CT sensor; for velocity-based measurement as an alternative sensing strategy
- Emerson / GE equivalent probes — Third-party 5mm eddy-current probes may be electrically compatible but require full loop calibration verification
Important: Probe, extension cable, and proximitor must be purchased and calibrated as a matched system. Mixing unmatched components will result in measurement errors and may void machinery protection warranties.
Why Choose the Original Model
- Factory-Calibrated System: The 330907-05-30-10-02-00 is calibrated as part of a matched probe/cable/proximitor system, ensuring API 670 compliance out of the box
- Reverse-Mount Geometry: Unique tip-back design enables installation in confined bearing housings inaccessible to standard probes
- High-Temperature Tolerance: Rated to 177°C, suitable for steam turbine and hot-section applications
- Long-Term Signal Stability: Eddy-current technology provides drift-free, non-contact measurement with no mechanical wear
- Global Support Ecosystem: Bently Nevada’s worldwide service network ensures calibration, repair, and spare parts availability
Typical Applications
- Steam and gas turbine shaft radial vibration monitoring
- Centrifugal compressor bearing displacement measurement
- Pump and motor shaft position sensing in API 670 systems
- Gearbox and expander rotor dynamic monitoring
- Reverse-mount installations in tight bearing housing geometries
System Compatibility
The 330907-05-30-10-02-00 is designed for use within the Bently Nevada 3300 XL Monitoring System. Verified compatible components include:
- Proximitors: 3300 XL 8mm Proximitor (330180-X1-05), 3300 XL 11mm Proximitor
- Extension Cables: 330130-080-00-00, 330180-X1-05 series
- Monitors: 3300/16 Dual Vibration Monitor, 3500/42M Proximitor/Seismic Monitor
- Systems: 3500 Machinery Protection System, System 1 Evolution software
Selection Guide
Use the following decision matrix to confirm the correct probe selection for your application:
- Step 1 — Mount Direction: Is the probe installed from the non-drive end or in a reverse orientation? → Yes: 330907 series (reverse mount). No: 330905 series (standard mount)
- Step 2 — Tip Diameter: Confirm bearing housing bore. 5mm tip (330907-05-XX) for tight clearances; 8mm tip for standard clearances
- Step 3 — Cable Length: Measure probe-to-proximitor distance. -30- = 30 cm integral cable; -50- = 50 cm. Add extension cable for longer runs
- Step 4 — Target Material: Confirm shaft material is AISI 4140 or equivalent. Non-standard alloys require recalibration
- Step 5 — Temperature: Confirm ambient temperature at probe tip does not exceed 177°C
- Step 6 — Approvals: Verify ATEX/IECEx zone requirements match probe certification
Quality Assurance & Sourcing
At Konmask.com, every Bently Nevada probe is sourced through verified industrial supply channels. Our quality process includes:
- Visual and dimensional inspection against OEM specifications
- Packaging and label authenticity verification
- Traceability documentation available on request
- Secure anti-static packaging for all probe shipments
How to Order
Submit your inquiry through our website or contact us directly. Please provide:
- Full part number: 330907-05-30-10-02-00
- Required quantity
- Destination country (for export compliance)
- Urgency / lead time requirement
- Existing system details (proximitor model, monitor type) if requesting compatibility advice
📧 support@konmask.com | 📞 +0086 19859288691
Replacement & Compatibility FAQ
Q: Can I replace the 330907-05-30-10-02-00 with a standard (non-reverse) 330905 probe?
A: Only if your bearing housing geometry permits standard-direction installation. The reverse-mount design is a physical constraint, not just an electrical one.
Q: Do I need to recalibrate the system after replacing the probe?
A: Yes. Even when replacing with an identical part number, a full loop calibration (probe + cable + proximitor) is recommended per API 670 and Bently Nevada service guidelines.
Q: Are third-party equivalent probes safe to use?
A: Third-party 5mm eddy-current probes may be electrically compatible, but they must be calibrated as a matched system. Using uncalibrated substitutes in API 670 machinery protection applications is not recommended.
Q: What is the lead time for the 330907-05-30-10-02-00?
A: Lead time varies by stock availability. Contact us for current inventory status and expedited shipping options.
Q: Can Konmask.com supply the full matched system (probe + cable + proximitor)?
A: Yes. We can source complete 3300 XL matched sets. Please specify your system configuration when inquiring.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
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