Description
Bently Nevada 330876-02-10-00-00 is a specialized non-contacting eddy current vibration and position transducer system designed for machinery monitoring in restrictive spaces or high-vibration environments. Manufactured as part of the 3300 XL NSv (Non-Standard velocity / Non-Standard vibration) product line, it measures radial vibration and axial position on small-shaft machinery, gearboxes, and compressor stages where standard probes cannot achieve proper target sizing.
Supply and Logistics Status
- Condition: New Original / Factory Sealed
- Availability: In stock for immediate dispatch
- Standard Lead Time: 1 to 3 business days for order processing and verification
- Warranty: 12-month standard replacement warranty from date of delivery
- Pricing Note: Listed price is indicative and subject to market conditions. Contact our sales desk for a firm quotation and volume availability.
Technical Specifications
| Parameter | Specification Value |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Product Series | 3300 XL NSv |
| Part Number Configuration | 330876-02-10-00-00 |
| Component Type | Complete Transducer System (Probe, Extension Cable, Proximitor Sensor) |
| Probe Thread Size | 3/8-24 UNF (NSv specific body design) |
| Linear Range | 1.5 mm (60 mils), spanning from 0.2 to 1.7 mm (8 to 68 mils) from target |
| Sensitivity | 7.87 V/mm (200 mV/mil) |
| Frequency Response | 0 to 10,000 Hz (+0, -3 dB) |
| Power Supply Requirements | -17.5 V DC to -26 V DC at 12 mA maximum consumption |
| Operating Temperature (Probe) | -51 to +177 °C |
| Operating Temperature (Proximitor) | -51 to +85 °C |
| Mounting | DIN rail or bulkhead mount for Proximitor sensor; threaded bracket for probe |
| Certifications | CSA, ATEX, IECEx (verify specific hazardous area classifications with manufacturer documentation) |
Part Number Breakdown (330876-02-10-00-00)
The modular part number structure defines the exact factory configuration of the transducer loop:
- 330876: 3300 XL NSv Proximitor Sensor
- -02: Cable length option (2.0 meters total system length or specific cable configuration)
- -10: Connector and mounting option (standard panel mount with connector protectors)
- -00: Agency approval option (Standard / Non-hazardous)
- -00: Extension cable and probe configuration matched set identifier
Engineering and Field Deployment Notes
In field deployments of Bently Nevada monitoring racks (such as 3500 or 3300 series machinery protection systems), the NSv system resolves linearity errors encountered when standard 3300 XL 8mm probes are aimed at shafts smaller than 50 mm (2 inches) in diameter or tight radial clearances.
Installation Best Practices
- Target Material: The transducer requires a conductive metallic target (typically carbon steel or alloy steel). Shaft metallurgy changes affect the scale factor; factory calibration uses AISI 4140 steel.
- Electrical Clearance: Maintain minimum spacing requirements between adjacent probes to prevent cross-talk or beat frequencies generated by mutual electromagnetic interference.
- Extension Cable Matching: The total electrical length of the system (probe tip plus extension cable plus Proximitor internal cable) must match the calibration specification (typically 5 meters or 9 meters total). Do not splice or shorten coaxial cables in the field, as capacitance changes alter output voltage sensitivity.
Frequently Asked Questions
What makes the NSv series different from standard 3300 XL 8mm probes?
The NSv (Non-Standard vibration) series features a modified coil and tip design specifically optimized for smaller target surfaces, reduced shaft diameters, and tight spatial constraints where standard probes lose linearity.
Can a standard 3300 XL Proximitor sensor be used with an NSv probe?
No. Proximitor sensors, probes, and extension cables in the NSv line are electrically matched components. Mixing standard and NSv parts results in severe calibration errors and inaccurate vibration measurements.
How is system zero checked during commissioning?
Use a micrometer or gap voltage meter to verify that the initial static gap voltage sits at approximately -10 V DC (mid-range of the linear operating curve) when the machine is at rest, depending on the specific power supply voltage.
