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330905-00-25-05-12-CN

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The Bently Nevada 330905-00-25-05-12-CN 3300 NSv Proximity Probe is a transducer designed for critical machinery health monitoring.
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Technical specifications for 330905-00-25-05-12-CN

  • Manufacturer:
    Bently Nevada
  • Part Number:
    330905-00-25-05-12-CN
  • Product Family:
    NSV Probe
  • Product Type:
    3300 NSv Proximity Probe
  • Stock:
    1
  • Unthreaded Length:
    0 mm
  • Overall Case Length:
    250 mm
  • Total Length:
    0.5 meter (20 in)
  • Connector -Type:
    Miniature coaxial ClickLoc connector
  • Cable-Type:
    FluidLoc cable
  • Minimum Target Diameter:
    31 mm (1.2 in) or larger
  • Probe Gap:
    1.0 mm (40 mils)
  • Weight:
    0.15 kg
  • Estimated shipping dimensions:
    1.8x1.6x63cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Applications Temperature & Humidity Range Performance & Efficiency

Features:

  • Proximity Detection Between Metallic Target Surfaces and the 3300 Proximitor Sensor System
  • Integrates Enhanced Chemical Resistance with Patented TipLoc and CableLoc Mechanical Design
  • Interchangeable with Previous 3300 RAM and 3000-Series 190 Probe and Extension Cable Systems
Mechanical and electrical interchangeability with the 3300 RAM probe is standard with the 330905-00-25-05-12-CN, however using an optional connector protector configuration will prevent most liquids from entering into the ClickLoc connectors and adversely affecting the electrical signal in harsh process environments. The 330905-00-25-05-12-CN has made improvements in several areas over previous 3300 RAM and 3000-series 190 probe designs in addition to incorporating increased chemical resistance capability within the 3300 NSv transducer system.

All components of the 330905-00-25-05-12-CN transducer system feature gold-plated brass ClickLoc connectors that lock into place and prevent loosening, with the patented TipLoc molding method providing a robust bond between the probe tip and body, and the patented CableLoc design delivering 220 N (50 lb) of pull strength to securely attach the probe cable. One 330905-00-25-05-12-CN probe is required per measurement point, working in conjunction with a compatible extension cable and Proximitor Sensor to form a complete transducer system.

For dual-path monitoring applications, the 3300 system requires a second 330905-00-25-05-12-CN proximity probe installed at the same measurement plane. In addition to standard single-probe operation, the redundant configuration also performs continuous measurement validation. The 3300 dual-probe configuration executes monitoring using the internal circuitry specified in the Proximitor Sensor options. Using this method, the redundant sensing system continually monitors the health of both 330905-00-25-05-12-CN probes.

The 330905-00-25-05-12-CN Bently Nevada 3300 NSv Proximity Probe may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 330905-00-25-05-12-CN 3300 NSv Proximity Probe Manuals,Datasheets,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. All prices are shown in USD.
Bently Nevada 330905-00-25-05-12-CN 3300 NSv Proximity Probe Specs

General

  • Manufacturer Bently Nevada
  • Model 330905-00-25-05-12-CN
  • Condition New Original ready stock
  • Product Family 330905-00-25-05-12-05,330905-00-25-05-12-00
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Constrained Geometry Applications: Optimized for installation in machines with restricted side-view clearances, shallow counterbores, or narrow mounting brackets.
  • Small Shaft Diameters: Designed to measure radial vibration on shafts smaller than 51 mm (2.0 inches).
  • Small Target Faces: Designed to measure axial position on flat target surfaces smaller than 15 mm (0.6 inches).
  • Critical Machinery Monitoring: Frequently deployed on fluid-filmed bearing machines, small centrifugal air compressors, refrigeration compressors, and process gas pumps.
  • Signal Variables: Utilized for continuous tracking of dynamic shaft vibration, static thrust position, tachometer speed measurements, and Keyphasor phase reference inputs.
  • Probe Tip & Cable Operating Range: -34°C to +177°C (-30°F to +351°F).
  • Storage Temperature Range: -51°C to +177°C (-60°F to +351°F).
  • Pressure Seal Threshold: Sustained exposure to temperatures below -34°C (-30°F) may degrade the probe's internal differential pressure seal.
  • Relative Humidity: 100% condensing, non-submerged.
  • Moisture Protection: The integrated FluidLoc cable design (specified by the -12 option code) prevents oil, water, or process gases from leaking or wicking through the internal core of the cable into connected enclosures.
  • Linear Measurement Range: 1.5 mm (60 mils), beginning at a nominal offset of 0.25 mm (10 mils) from the target surface.
  • Scale Factor Sensitivity: 7.87 mV/µm (200 mV/mil) average scale factor (ASF) when calibrated against AISI 4140 steel targets.
  • Target Operating Gap: Calibrated for peak linearity when operating between a gap voltage window of -8 VDC to -12 VDC.
  • Side-View Efficiency: Features a condensed magnetic eddy-current field that allows the probe to ignore surrounding cross-talk or nearby sidewall interference from mounting holes.
  • TipLoc Structural Strength: Utilizes a specialized molding process that chemically bonds the polyphenylene sulfide (PPS) probe tip directly to the stainless steel body casing.
  • CableLoc Pull Strength: Mechanical construction provides up to 220 N (50 lb) of pull strength at the cable-to-probe junction point.
  • ClickLoc Connector Interface: Features gold-plated brass connections with a positive locking mechanism that prevents terminal disconnects caused by structural machine vibration.
Description
The 330905-00-25-05-12-CN is a Bently Nevada 3300 NSv Proximity Probe designed for vibration monitoring and machinery protection in process compressor applications. This proximity probe solves the problem of chemical exposure in harsh industrial environments, offering increased chemical resistance compared to previous probe generations. The 330905-00-25-05-12-CN is applied in industries such as oil and gas, petrochemical processing, and power generation, where reliable condition monitoring of rotating equipment is critical. For installation and integration, the 330905-00-25-05-12-CN is mechanically and electrically compatible with Bently Nevada's previous 3300 RAM proximity probe and extension cable, providing a straightforward upgrade path while maintaining full interchangeability with existing monitoring systems.

The 3300 NSv probe and extension cable of the 330905-00-25-05-12-CN are interchangeable with Bently Nevada's previous 3300 RAM proximity probe and extension cable. The NSv probe has increased chemical resistance compared to the 3300 RAM probe, which allows the 330905-00-25-05-12-CN to be used in many process compressor applications. The side-view characteristics of the 3300 NSv probe are also superior to those of the 3000-series 190 probe when gapping the 330905-00-25-05-12-CN at the same distance from the probe target. The 330905-00-25-05-12-CN comes in varying probe case configurations, including armored and unarmored 1/4-28, 3/8-24, M8X1 and M10X1 probe threads. The reverse mount 3300 NSv probe comes standard with either 3/8-24 or M10X1 threads.

All components of the 330905-00-25-05-12-CN transducer system have gold-plated brass ClickLoc connectors. ClickLoc connectors lock into place and prevent the connection from loosening. The patented TipLoc molding method provides a robust bond between the probe tip and the probe body of the 330905-00-25-05-12-CN. Bently Nevada's patented CableLoc design provides 220 N (50 lb) of pull strength and securely attaches the probe cable to the probe tip of the 330905-00-25-05-12-CN. Connector protectors are recommended for use on the probe-to-extension cable connection of the 330905-00-25-05-12-CN, as well as on the cable-to-Proximitor Sensor connection. Connector protectors prevent most liquids from entering into the ClickLoc connectors and adversely affecting the electrical signal.
Alternative Names
330905 00 25 05 12 CN 330905-00-25-05-12-00 330905-00-25-05-12-05 330905-00-25-05-02-CN 330905-00-25-10-12-CN 330905-00-25-05-11-CN
Technical notes
The 330905-00-25-05-12-CN relies on the patented TipLoc molding method to provide a robust bond between the probe tip and the probe body, while the patented CableLoc design secures the cable to the tip with 220 N (50 lb) of pull strength.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is the 330905-00-25-05-12-CN proximity probe used for?
The 330905-00-25-05-12-CN is a proximity probe designed for eddy current vibration and position measurement in rotating machinery. It is primarily used in industrial monitoring systems to measure shaft displacement, vibration, and gap distance in equipment such as compressors and turbines, ensuring accurate real-time condition monitoring.
How does the 330905-00-25-05-12-CN improve measurement reliability?
It improves reliability through enhanced chemical resistance and improved side-view performance compared to earlier probe generations. These upgrades help maintain stable signal output even in corrosive environments or when installed in tight mechanical spaces where signal distortion or interference could otherwise occur.
Why is the 330905-00-25-05-12-CN important in harsh industrial environments?
The probe is specifically engineered to withstand chemical exposure and mechanical constraints found in heavy industrial settings. Its durability makes it suitable for environments with corrosive gases or fluids, while its optimized sensing profile reduces cross-talk and structural interference in confined installation areas.