330101-02-70-10-11-05 Bently Nevada 3300 XL 8 Mm Proximity Probe
The Bently Nevada 330101-02-70-10-11-05 is an industry-standard 3300 XL 8mm Proximity Probe designed for non-contacting vibration and displacement measurements. It eliminates the operational pain point of catastrophic machine failures by delivering highly accurate, real-time eddy current tracking of fast-moving parts, making it the ideal choice for steam turbines, large centrifugal compressors, and heavy-duty power-generation equipment operating continuously in high-temperature, high-vibration environments.
Engineer's Note
"The 7.0-inch long case body on the 330101-02-70-10-11-05 is heavily utilized when mounting probes through deep external machine casings or thick bearing blocks. When setting these up, always verify your clearance using the connector protector. The 11 option includes this protector pre-installed, which increases the required pull-through clearance diameter slightly but dramatically reduces the risk of field-termination failure due to ambient moisture or oil wicking."
Project Case Study
- Deployment Site: Municipal Base-Load Thermal Power Plant (Deployed: 2025)
- Application: Radial shaft vibration tracking on a 150MW steam turbine generator.
- Operational Environment: High radiating case temperatures, continuous exposure to ambient moisture/steam leaks, and aggressive 24/7 mechanical vibration.
- Performance Update (2026): Operates flawlessly with an unbroken data stream. The 8mm tip maintains tight calibration linearity, and the connector protector has completely isolated the cable link from ambient steam washdowns, preventing expensive un-planned plant trips.
Custom Product FAQ
Q: Can I use this 8mm probe with any extension cable and Proximitor?
A: This probe is engineered to work inside a total 5-meter or 9-meter system. Because this specific probe has a 1.0-meter integrated cable (10 suffix), you must pair it with a 4.0-meter or 8.0-meter 3300 XL extension cable and a corresponding 3300 XL Proximitor sensor. Mixing systems or matching total lengths incorrectly will distort your calibration.
Q: What is the purpose of the 0.2-inch unthreaded length at the front?
A: The unthreaded tip (02 suffix) allows the probe to be adjusted safely through fine-threaded brackets without the raw threads rubbing or catching against sharp edge-lip entry ports, ensuring smooth adjustment during gap-voltage calibration.
Q: Is this 3300 XL probe backward-compatible with older Bently Nevada systems?
A: Yes. The 3300 XL 8mm probe is physically and electrically compatible with older 3300 systems and 7200 series systems (when correct system lengths and scaling are matched). However, for maximum linearity and temperature stability, it is always recommended to deploy it within a complete 3300 XL loop.
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Global Distribution Network
Amikon supplies industrial automation parts to more than 150 countries, covering a wide mix of regions.
The Americas: Especially the USA and Canada, still rely quite a lot on replacement parts. Many sites there are older facilities like refineries or chemical plants.
Europe: Similar to the Americas, with countries such as Germany, UK, France and Italy. A lot of work there is about keeping existing systems running rather than new installations.
Asia-Pacific: Includes China, Japan, South Korea, Singapore and Australia. Industries there range from semiconductors to shipbuilding and mining, depending on the country.
Middle East and Africa: Like UAE, Saudi Arabia, Qatar and South Africa, are more focused on energy-related operations, mainly oil, gas and power sectors.
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