Description
Product Overview
Part Number: 330901-00-90-05-02-00 Manufacturer: Bently Nevada (Baker Hughes) Product Series: 3300 XL NSv 8 mm Proximity Probe Type: Non-contact eddy current proximity probe, non-armored triaxial integral cable, 1/4-28 UNF thread, USA manufactured. This 8mm NSv series eddy current proximity probe is designed for measuring shaft radial vibration, thrust displacement, shaft position and keyphasor speed signals for rotating assets including steam turbines, centrifugal compressors, generators and large process pumps. Paired with matched 3300XL NSv proximitor and Bently 3500 monitoring rack, it delivers real-time displacement signals for machinery protection and predictive condition monitoring, compliant with API 670 standard.
Technical Specifications
| Item | Parameter |
|---|---|
| Probe Size | 8 mm |
| Linear Measurement Range | 0 ~ 8 mm |
| Scale Factor | 7.87 V/mm (200 mV/mil) |
| Integral Cable Length | 5m |
| Thread Specification | 1/4-28 UNF |
| Probe Tip Material | PPS polyphenylene sulfide |
| Operating Temperature | -45°C ~ +100°C |
| Storage Temperature | -55°C ~ +125°C |
| Lateral Sensitivity | ≤7% |
| Linearity Error | ≤1% of full scale |
| Connector | ClickLoc miniature coaxial connector |
| System Compatibility | 3300XL NSv proximitor, 3500 series machinery monitoring rack |
| EMC Performance | RFI/EMI interference resistant |
| Cable Type | Non-armored triaxial cable |
| Case Length | 9.0 inch |
Engineer Notes
- This NSv probe must be matched with dedicated 3300XL NSv proximitor. The total system cable length must strictly follow datasheet limits to preserve scale factor calibration accuracy. It cannot interchange with standard 3300XL 3301xx series probe systems.
- Recommended working gap for standard 8mm 3300XL NSv probe: approximately 1.25 mm. Verify gap voltage during commissioning.
- Target surface must be ferrous conductive steel. Non-ferrous materials shift scale factor and degrade measurement accuracy.
- Protect PPS probe tip from mechanical impact and scratches; tip damage leads to unstable signal and measurement drift.
- Non-armored cable design, suitable for installation locations without heavy mechanical abrasion.
- Do not splice, cut or modify the factory integral cable. Unauthorized cable modification voids calibration and warranty.
- Apply proper torque on 1/4-28 UNF threads during installation; over-tightening may crack probe housing and damage internal components.
- Long 9.0-inch probe body for deep mounting holes.
Pre-Shipment Test Protocol
- Continuity & insulation resistance test of probe and attached integral cable
- Scale factor and linearity test with standard steel target and precision gap gauge
- Noise floor and output signal stability check
- Full visual inspection: cable jacket, connector, probe tip and thread condition
- Part number, label and marking verification
- Calibration document review
- Anti-static & shockproof packaging inspection
Buyer FAQ
Q: Is 330901-00-90-05-02-00 new original? A: We supply brand new original Bently Nevada units, 12-month warranty, factory calibration certificate available on request.
Q: What is the difference between NSv probe and regular 3300XL probe? A: NSv series uses different proximitor electronics and UNF thread; they are not electrically interchangeable with the 3301xx M10 threaded probes.
Q: What monitoring system works with this probe? A: It pairs with Bently Nevada 3500 machinery protection rack and matching 3300XL NSv proximitor.
Q: Can this probe be used for turbine thrust position monitoring? A: Yes, this 3300XL NSv 8mm long body probe is widely applied on turbomachinery for shaft vibration and thrust displacement protection.
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