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The Bently Nevada 330903-00-25-05-02-CN is a 3300 NSv (Near-Switch) Proximity Probe, often used in vibration monitoring systems, featuring M8x1 threading, a 2.5mm unthreaded length, a 50mm case length, a 0.5m cable, a ClickLoc™ connector, and Chinese agency approvals.

The primary uses for the 3300 XL NSv Transducer System are for areas where counter bore, sideview, or rearview restrictions limit the use of standard Bently Nevada 3300 and 3300 XL 5 and 8 mm Transducer Systems. It is also ideal for small target applications, such as measuring radial vibration on shafts smaller than 51 mm (2 in) or axial position on flat targets smaller than 15 mm (0.6 in). It is primarily used in the following applications on fluid-filmed bearing machines where a small shaft or reduced side-view is present:

Radial vibration and radial position measurements

Axial (thrust) position measurements

Tachometer and zero speed measurements

Phase reference (Keyphasor signals)

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 sideview 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.

Frequently Asked Questions

Q1: What is the Bently Nevada 330903-00-25-05-02-CN Proximity Probe?

A1: It is a 3300 NSv proximity probe designed for non-contact shaft vibration and displacement monitoring in rotating machinery applications.

Q2: What is the 330903-00-25-05-02-CN overall case length of this probe?

A2: The 330903-00-25-05-02-CN overall case length option “25” corresponds to 250 mm.

Q3: What is the 330903-00-25-05-02-CN total cable length?

A3: The 330903-00-25-05-02-CN total cable length option “05” indicates a length of 0.5 meter (20 inches).

Q4: What is the 330903-00-25-05-02-CN sensitivity of this probe?

A4: The 330903-00-25-05-02-CN sensitivity is 7.87 mV/mm (200 mV/mil) with a tolerance of ±12.5%.

Q5: What is the 330903-00-25-05-02-CN linear measurement range?

A5: The linear operating range is 0.25 mm to 1.75 mm (10 to 70 mils).

Product Applications

Oil & Gas: Used for rotating machinery protection in critical processes such as oil refining, ethylene production, natural gas compression, and oil pipelines.

Steel & Metallurgy: Used for protecting high-pressure, high-speed equipment such as blast furnace blowers, compressors, and continuous casting units.

Chemical: Used for condition monitoring in various centrifugal compressors, reactor agitators, and other equipment.

Power Generation: Provides shaft displacement and vibration monitoring in steam turbines, water turbines, and generator sets.

Cement & Glass: Used in important auxiliary equipment such as high-temperature fans and kiln tail fans.

Pharmaceutical: High-precision monitoring of the safe operation of rotating equipment.