Bently Nevada 330904-00-22-10-02-00 – High-Precision 8mm Eddy-Current Proximity Probe | 3300 NSv Platform
Engineering Background
The Bently Nevada 3300 NSv (Non-Standard Voltage) series represents the industry benchmark for eddy-current displacement measurement in rotating machinery protection systems. Designed to meet API 670 requirements, these probes are deployed globally in critical turbomachinery applications where continuous, high-fidelity shaft vibration and position data are non-negotiable.
Product Positioning
Part number 330904-00-22-10-02-00 is an 8mm proximity probe engineered for integration into Bently Nevada 3300 XL and NSv monitoring systems. It delivers sub-micron resolution displacement measurement, making it the preferred choice for procurement engineers specifying vibration monitoring hardware for gas turbines, steam turbines, compressors, and pumps.
Complete Technical Specifications
| Part Number | 330904-00-22-10-02-00 |
| Series / Platform | Bently Nevada 3300 NSv |
| Probe Tip Diameter | 8 mm |
| Cable Length | 22 inches (0.56 m) integral cable |
| Thread Size | M10 × 1.0 |
| Sensing Range | 0.25 – 2.25 mm (10 – 90 mil) |
| Scale Factor | 7.87 V/mm (200 mV/mil) |
| Frequency Response | DC – 10,000 Hz (–3 dB) |
| Supply Voltage | –24 VDC (nominal) |
| Output Voltage Range | –2 to –18 VDC |
| Temperature Range | –35°C to +177°C (–31°F to +350°F) |
| Connector Type | 2-pin MIL-C-5015 (02-10) |
| Housing Material | 316 Stainless Steel |
| Weight | 620 g (probe + cable assembly) |
| Compliance | API 670, CE, RoHS |
| Country of Origin | USA |
Proven Application Environments
- Gas Turbines – Shaft radial vibration and axial position monitoring on GE, Siemens, and Solar turbines
- Steam Turbines – High-temperature bearing journal displacement measurement
- Centrifugal Compressors – Rotor dynamic analysis and surge detection
- Pumps & Fans – Continuous condition monitoring in API 670-compliant installations
- Gearboxes – Gear mesh frequency analysis and shaft orbit measurement
Engineering Advantages
- API 670 Compliant – Drop-in replacement for existing 3300 NSv installations without recalibration
- Extended Temperature Rating – Operates reliably up to 177°C, suitable for hot-section turbine bearing pedestals
- 316 SS Housing – Corrosion-resistant construction for offshore and chemical plant environments
- Flat Frequency Response to 10 kHz – Captures high-frequency rotor dynamics and sub-synchronous instabilities
- Integral Cable Design – Eliminates field-assembly errors; factory-calibrated as a matched system
System Architecture & Signal Flow
The 330904-00-22-10-02-00 probe operates as part of a three-component eddy-current measurement chain:
- Proximity Probe (330904-00-22-10-02-00) – Generates high-frequency electromagnetic field; senses target displacement
- Extension Cable (330130 series) – Transmits RF signal from probe tip to driver; total system cable length must match driver calibration
- Proximitor® Driver (3300 XL / NSv) – Demodulates RF signal; outputs DC voltage proportional to gap distance
Note: Total cable system length (probe integral cable + extension cable) must equal the driver’s calibrated length. Verify driver part number compatibility before ordering.
Sourcing & Quality Verification
- All units sourced from authorized distributors or verified OEM surplus channels
- Each probe inspected for physical integrity, connector condition, and cable continuity prior to shipment
- Original Bently Nevada labeling and part number markings verified
- Traceability documentation available upon request for critical installations
- 30-day return policy on unused, uninstalled units
Procurement Process
- Confirm Compatibility – Verify your Proximitor® driver part number accepts 8mm NSv probes at 22-inch cable length
- Request Quote – Contact us with your required quantity and delivery timeline
- Order Confirmation – PO accepted via email; proforma invoice issued within 24 hours
- Shipping – DHL / FedEx international express; EXW Xiamen or CIF destination available
- Documentation – Commercial invoice, packing list, and optional test report provided
Technical FAQ
Q: Is 330904-00-22-10-02-00 compatible with the 3300 XL Proximitor®?
A: Yes. The 3300 NSv probe series is backward-compatible with 3300 XL drivers when the total cable length matches the driver calibration.
Q: What is the difference between NSv and standard 3300 probes?
A: NSv (Non-Standard Voltage) probes are calibrated for a –24 VDC supply and output –2 to –18 VDC, versus the standard –18 VDC supply of earlier 3300 series. Ensure your driver matches.
Q: Can this probe be used with a non-Bently Nevada monitor?
A: The probe can interface with third-party monitors that accept a 200 mV/mil (7.87 V/mm) eddy-current input, but system calibration must be independently verified.
Q: What target material is required?
A: The probe is calibrated for AISI 4140 steel targets. Other ferromagnetic or non-ferromagnetic materials will require recalibration using Bently Nevada’s calibration procedure.
Q: Do you provide ATEX/IECEx certified units?
A: Please contact us directly — certified variants may be available depending on current stock.
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