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The 330902-04-48-10-02-00 is a 3300 NSv series eddy current proximity probe manufactured by Bently Nevada. This probe serves rotating machinery with restricted installation space, small shaft diameters, or specific mechanical configurations, such as small-to-medium centrifugal compressors, industrial pumps, and blowers. It executes non-contact measurements of shaft radial vibration, axial displacement, and keyphasor signals, functioning as a sensing element within industrial asset predictive maintenance and over-limit protection control chains.
Axial (thrust) position measurements
Phase reference (Keyphasor signals)
Tachometer and zero speed measurements
The 3300 XL NSv Transducer System design allows it to replace both the 3300 RAM Transducer Systems and the 3000-series or 7000-series 190 Transducer System. Upgrades from the 3300 RAM system to the 3300 XL NSv system may use the existing probe, extension cable, and monitoring system with 3300 XL NSv Proximitor Sensor. Upgrades from the 3000-series or 7000-series Transducer System must replace the probe, extension cable, and Proximitor Sensor with NSv components.
The 3300 XL NSv Transducer System has an Average Scale Factor of 7.87 V/mm (200 mV/mil), which is the most common output for eddy current transducers. Its enhanced side view and small target characteristics give it a shorter linear range than the Bently Nevada 3300 XL-series 5 and 8 mm Transducer System. The 1.5 mm (60 mils) of linear range exceeds the linear range of the 3000-series 190 Transducer System.
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 330902-04-48-10-02-00 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
Monitoring small shaft displacement and bearing vibration in small-to-medium steam turbines, gas turbines, and boiler feedwater pumps.
Oil and Gas Industry
Tracking the axial position of high-speed centrifugal compressors and low-power turbine drivers used in natural gas pipeline transportation.
Petrochemical Industry
Measuring radial vibration at the shaft journals of high-speed pumps, agitators, and separators in non-hazardous general plant areas.
Metallurgy and Iron Industry
Monitoring precision thermal growth and axial runout of blast furnace blowers, high-pressure descaling pumps, and rolling mill drive shafts.
Hydroelectric Power Industry
Measuring guide bearing movement and shaft runout in small hydro-generator units to assess the physical impact of water flow on the rotor shaft.
Pulp and Paper Industry
Detecting bearing thermal growth and axial alignment changes in paper machine dryer section gears, wire rolls, and liquid ring vacuum pumps.
The operation of the 330902-04-48-10-02-00 requires strict compliance with mechanical, electrical, and environmental specifications. Mechanically, installation must follow factory torque limits, maintaining the initial gap at the center of the 1.5 mm linear range while keeping the bend radius of the armored cable within specifications.
Electrically, the coaxial connectors must be securely tightened to ensure proper insulation, matching with the Proximitor system while maintaining reliable housing grounding. Environmentally, technicians must periodically clean oil and moisture from the miniature connector during operation to prevent signal fluctuations caused by low insulation resistance.
The 330902-04-48-10-02-00 is a 1/4-28 UNF threaded miniature eddy current proximity probe protected by a stainless steel armor, featuring a 0.4-inch unthreaded length, a 4.8-inch overall case length, and an integrated 1.0-meter standard coaxial cable. Equipped with a secure-locking miniature ClickLoc coaxial connector, this unapproved standard industrial hardware is used for non-contact monitoring of small-diameter shafts or constrained target surfaces, requiring a minimum physical clearance of 23 mm radially and 25 mm axially during multi-probe installation to prevent electromagnetic cross-talk.
It is a 3300 NSv series eddy current proximity probe manufactured by Bently Nevada, used for non-contact measurement of shaft vibration and displacement in rotating machinery.
How should a product like the 330902-04-48-10-02-00 be used?
It must be threaded into the measurement hole of the machinery bearing housing so that its tip faces the target metal surface of the shaft, and connected to a 3300 XL NSv Proximitor via an extension cable.
Does the 330902-04-48-10-02-00 have external armor protection?
Yes, the integral cable of this model is covered with stainless steel flexible conduit armor to protect the cable from mechanical wear on-site.
Which sensor system from Bently Nevada does the 330902-04-48-10-02-00 belong to?
It belongs to the 3300 XL NSv transducer system and must be paired with a 3300 XL NSv Proximitor to function properly.
On which industrial equipment is the 330902-04-48-10-02-00 primarily installed?
It is primarily installed inside the bearing housings of small-to-medium centrifugal compressors, pumps, blowers, and other rotating machinery.
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