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The 330702-00-25-10-02-00 is a high-precision 11mm eddy current proximity probe applied for condition monitoring of large industrial rotating machinery. Belonging to the world-renowned Bently Nevada 3300 XL 11mm transducer system, this model is primarily utilized in core industrial scenarios that require a wide measurement range, serving as the "precision electronic eye" that ensures the safe operation of heavy industrial equipment.
Axial (thrust) position measurements
Tachometer and zero speed measurements
Ramp differential expansion measurements on steam turbines
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.
The 3300 XL 11 mm Proximitor Sensor has the same advanced features found in the 3300 XL 8 mm Proximitor Sensor. Its thin design allows it to be mounted in either a high-density DIN-rail installation or a more traditional panel mount configuration. Improved RFI/EMI immunity allows the 3300 XL Proximitor Sensor to achieve European CE mark approvals without any special mounting considerations. This RFI immunity also prevents the transducer system from being adversely affected by nearby high frequency radio signals. SpringLoc terminal strips on the Proximitor Sensor require no special installation tools and facilitate faster, highly robust field wiring connections.
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 330702-00-25-10-02-00 Proximity Probe 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.
Power Generation
Monitors the axial thrust position and casing differential expansion of large 300MW+ steam turbines to prevent disastrous rotor-to-stator rubbing.
Petrochemical & Refining Industry
Tracks shaft position and vibration on high-pressure centrifugal compressors and ethylene crackers to ensure continuous process safety.
Pulp & Paper Industry
Monitors shaft stability and thermal growth on high-speed industrial steam turbines utilized in paper mill captive power plants.
Nuclear Power
Monitors secondary-loop auxiliary feed-water pumps and conventional island steam turbines for micro-inch shaft displacement.
Iron & Steel Metallurgy
Monitors the thermal expansion and bearing vibration of blast furnace blast blowers and oxygen plant compressors.
Marine & Shipbuilding Industry
Monitors the main propulsion shaft thrust bearings and turbochargers on massive LNG carriers and container ships.
During the utilization of 330702-00-25-10-02-00, the recommended static gap of 2.5 mm (approximately -10 Vdc) must be strictly maintained, and force-threading while the machine is running is prohibited to prevent the probe tip from colliding with the shaft.
Since this probe only has an integrated 1.0-meter cable, it must be paired with an original 4.0-meter or 8.0-meter 3300 XL extension cable in the field to connect to the Proximitor sensor, and the ClickLoc connectors must be kept completely free of moisture and oil ingress. Lastly, because this specific configuration carries no hazardous area approvals, it must never be installed directly in high-risk explosive gas or dust environments.
The Bently Nevada 330702-00-25-10-02-00 is an 11 mm Proximity Transducer System featuring a 1/2-20 UNF thread, stainless steel armor, 2.5-inch case length, and a 1.0-meter cable with a ClickLoc connector. The probe utilizes TipLoc and CableLoc designs for enhanced durability, with FluidLoc cable options and locking nuts for secure, high-pressure industrial applications.
What is the primary purpose of the 330702-00-25-10-02-00 probe?
It is a non-contact eddy-current proximity probe used to measure axial (thrust) position, radial vibration, and thermal expansion in massive rotating machinery.
How do you adjust the mounting gap for the 330702-00-25-10-02-00?
Screw the probe into its bracket until reaching the recommended 2.5 mm (100 mils) physical gap, equivalent to approximately -10 Vdc bias voltage.
What materials are used to build the 330702-00-25-10-02-00?
The tip is made of Polyphenylene Sulfide (PPS) plastic, the case is AISI 304 Stainless Steel, and the armor is AISI 302 Stainless Steel with an FEP jacket.
What is the torque limit when tightening the 330702-00-25-10-02-00 case?
The recommended installation torque is 15.2 N·m (133 in·lb), and it must never exceed the maximum rating of 45.2 N·m (400 in·lb).
What routine maintenance does the 330702-00-25-10-02-00 require?
Periodically check the armor for damage, ensure the ClickLoc connector is clean and free of oil, and measure the probe's DC resistance (typically 5.9 ± 0.5 Ω).
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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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