Bently Nevada 330905-00-12-05-02-00 – Eddy Current Proximity Probe | 3300 NSv Platform
Engineering Background: The Bently Nevada 3300 NSv Series represents the industry benchmark for non-contacting eddy current measurement in rotating machinery protection. Deployed across power generation, petrochemical, and heavy industrial sectors worldwide, the 3300 NSv system delivers continuous, real-time shaft vibration and position data to safeguard critical assets.
Product Positioning: The 330905-00-12-05-02-00 is a factory-configured proximity probe engineered for direct integration into 3300 NSv monitoring systems. Its precise gap voltage linearity and robust construction make it the preferred choice for procurement engineers specifying OEM-equivalent replacement components in API 670-compliant installations.
Complete Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 330905-00-12-05-02-00 |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Series / Platform | 3300 NSv Proximity Transducer System |
| Sensor Type | Eddy Current Proximity Probe |
| Probe Cable Length | 12 inches (305 mm) — encoded in PN segment “-12-“ |
| Tip Diameter | 5 mm (standard NSv tip) |
| Thread Size | M10 × 1.0 (metric) |
| Sensitivity | 200 mV/mil (7.87 V/mm) nominal |
| Linear Range | 0 – 80 mil (0 – 2.03 mm) |
| Supply Voltage | −24 VDC (via Proximitor® driver) |
| Output Signal | −2 VDC to −18 VDC (gap-dependent) |
| Frequency Response | DC to 10,000 Hz (−3 dB) |
| Operating Temperature | −35 °C to +177 °C (−31 °F to +351 °F) |
| Target Material | AISI 4140 steel (standard); other alloys with calibration |
| Connector Type | Integral armored cable with BNC or MIL-spec connector |
| Ingress Protection | IP67 (probe body) |
| Compliance | API 670, CE, ATEX (zone-dependent configuration) |
| Weight | ~80 g |
Proven Application Environments
- Steam & Gas Turbines — radial shaft vibration and axial position monitoring per API 670
- Centrifugal Compressors — continuous rotor orbit and eccentricity measurement
- Pumps & Fans — bearing journal displacement in high-temperature sumps
- Gearboxes — gear mesh frequency analysis and shaft runout detection
- Electric Motors (>1 MW) — rotor dynamic monitoring in critical drive trains
- Hydro Turbines — slow-speed shaft position in submerged environments
Engineering Advantages
- Non-contacting measurement — zero mechanical wear, infinite service life under normal conditions
- High-frequency bandwidth — resolves sub-synchronous instabilities and blade-pass events up to 10 kHz
- Factory-matched system — probe, extension cable, and Proximitor® driver calibrated as a matched set for ±1% linearity
- Harsh-environment rated — armored cable withstands oil mist, steam, and chemical splash
- Direct OEM replacement — drop-in compatibility with existing 3300 NSv Proximitor® drivers and junction boxes
- API 670 compliant — satisfies machinery protection standard for critical rotating equipment
System Architecture & Signal Flow
The 3300 NSv transducer system operates as a three-component matched set:
- Proximity Probe (330905-00-12-05-02-00) — generates eddy current field at the shaft surface; gap change modulates oscillator frequency.
- Extension Cable (330130 series) — transmits the RF signal from probe tip to Proximitor® driver; total system cable length must match calibration (typically 5 m or 9 m).
- Proximitor® Driver (3300 XL 8mm or NSv) — demodulates the RF signal and outputs a DC voltage proportional to gap distance; feeds monitoring rack (3500 series or equivalent).
Signal path: Shaft displacement → Eddy current field modulation → RF signal → Proximitor® demodulation → DC voltage output → Monitor/relay trip logic.
Sourcing & Quality Verification
At Konmask.com, every Bently Nevada component passes a documented 4-step verification protocol before shipment:
- Serial Number Traceability — cross-referenced against OEM production records where available.
- Physical Inspection — tip geometry, thread integrity, cable armor, and connector seating verified against OEM drawings.
- Functional Bench Test — gap voltage linearity checked at 20 mil, 40 mil, and 60 mil against factory calibration curve (±5% tolerance).
- Documentation Package — calibration certificate, country of origin declaration, and packing list issued with every shipment.
We source from authorized distributors, decommissioned plant overhauls, and certified surplus channels. Counterfeit-risk items are quarantined and never listed.
Procurement Process
- Submit RFQ — email support@konmask.com with your part number, required quantity, and delivery deadline.
- Receive Quote — pricing, lead time, and stock confirmation within 24 business hours.
- Order Confirmation — pro-forma invoice issued; payment via T/T, PayPal, or trade finance.
- Quality Hold & Ship — item re-inspected, photographed, and packed; tracking number provided within 48 hours of payment clearance.
- Post-Delivery Support — 90-day warranty on functionality; technical support available via email or WhatsApp.
Technical FAQ
Q: Can this probe be used with a 3500 series monitor directly?
A: The probe requires a compatible Proximitor® driver (e.g., 3300 XL NSv). The driver output then connects to the 3500 monitor input. Direct probe-to-3500 connection is not supported.
Q: What is the total system cable length for this part number?
A: The “-12-” segment indicates a 12-inch (305 mm) integral probe cable. An extension cable (330130 series) is required to reach the Proximitor® driver; total system length must match the calibration certificate.
Q: Is this part ATEX certified for hazardous areas?
A: ATEX certification depends on the complete system configuration (probe + extension + driver). Confirm the full system part numbers with your safety engineer before installation in Zone 1/2 areas.
Q: Do you provide a calibration certificate?
A: Yes. A functional test report is included with every shipment. OEM factory calibration certificates are provided where available from the supply chain.
Q: What is the lead time for this part?
A: Typically 3–7 business days for in-stock items; 2–4 weeks for sourced items. Contact us for current availability.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
