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The 330780-50-00 is the core preamplifier for the Bently Nevada 3300 XL 11mm eddy current proximity sensor system. This hardware unit is engineered for heavy industrial rotating machinery, enabling precise non-contact measurement of dynamic vibration, static displacement, axial (thrust) position, keyphasor phase reference signal, and rotational speed in sliding bearing machines.
Axial (thrust) position measurements
Phase reference (Keyphasor) signals
Tachometer and zero speed measurements
The 3300 XL 11 mm Proximity Transducer System has a 3.94 V/mm (100 mV/mil) output for non-contacting vibration and displacement measurements on fluid film bearing machines. The large 11 mm tip enables this transducer system to have a longer linear range compared to our standard 3300 XL 8 mm Transducer System.The 3300 XL 11 mm Proximitor Sensor is designed to replace the 7200-series 11 mm and 14 mm Transducer Systems. When upgrading from the 7200-series system to the 3300 XL 11 mm system, every component must be replaced with 3300 XL 11 mm components. In addition, the monitoring system must be updated. If using a 3500 Monitoring System, an updated version of the configuration software that lists the 3300 XL 11 mm Transducer System as a compatible option is required.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Bently Nevada 330780-50-00 Proximitor Sensor Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Thermal Power Generation
Used for monitoring shaft vibration, axial displacement (thrust), and differential expansion of large steam turbines and generators to prevent blade-to-casing rub.
Hydroelectric Power
Monitored for shaft swing (runout), guide bearing vibration, and vertical displacement of hydro-turbine generator units to ensure stability under high hydraulic head.
Nuclear Power
Employed to monitor the operating status of reactor coolant pumps and main steam turbines, providing high-level mechanical fault warnings and safety interlocking shutdown protection.
Oil & Gas
Installed on gas injection compressors of offshore drilling platforms or onshore gas fields to monitor bearing clearances and dynamic displacement in real time.
Petroleum Refining
Used in flue gas turbines and rich gas compressors within catalytic cracking units to monitor shaft axial position in hazardous, high-temperature, and high-pressure environments.
When using the Bently Nevada 330780-50-00 Proximitor Sensor, the critical points to note are as follows. First, you must ensure strict system length matching (5m or 9m) with the 11mm probe and extension cable, and never mix components from different systems. Second, implement proper grounding (single-point ground) to prevent the housing from contacting the machine casing and causing ground loops. Finally, precisely calibrate the probe initial gap (offset voltage setting), while keeping the system free from surrounding electromagnetic interference and severe mechanical vibration.
This is an industrial-grade non-contact eddy current proximity transducer manufactured by Bently Nevada, belonging to the 3300 XL 11 mm sensor system platform.
What is the core function of the 330780-50-00?
Its core function is to condition the raw electrical signals collected by the probe and deliver a standardized analog voltage output directly proportional to the physical distance of the observed metal surface.
Does the 330780-50-00 belong to pressure sensors or displacement sensors?
This hardware belongs to non-contact displacement sensor systems, specifically utilized for measuring mechanical displacement and vibration rather than gas or liquid pressure.
How do you properly install and use a product like the 330780-50-00?
It is used by securing it onto an interior mounting panel or DIN rail inside a control cabinet, connecting it to a co-series 11 mm probe and extension cable via dedicated terminals, and wiring the voltage output to a 3500 monitor.
What is the physical difference between the 330780-50-00 and a standard 8 mm sensor?
Because this transducer matches a thicker 11 mm probe tip, it provides a longer linear measurement range for mechanical structures with larger axial movement profiles.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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