The Bently Nevada 330909-00-20-10-02-CN is a 3300 NSv proximity probe featuring a 3/8-24 UNF thread and 1.0m cable. Designed for narrow side-view applications, this sensor provides precise vibration and position monitoring for small-diameter shafts and restricted machine spaces.
The Bently Nevada 330909-00-20-10-02-CN is a core component of the 3300 NSv (Narrow Side View) Proximity Transducer System. This sensor is specifically engineered for machinery where standard 8 mm probes cannot be used due to limited installation space or small target sizes. Because the NSv design minimizes the “side view” effect, it allows for accurate vibration and position measurements in tight counterbores or near adjacent metal surfaces. Consequently, this probe is the primary solution for monitoring centrifugal compressors, high-speed refrigeration units, and small-diameter shafts where precision is paramount.
This transducer system incorporates enhanced RFI/EMI immunity, which ensures consistent signal output even in environments with significant electrical noise. Therefore, the 330909-00-20-10-02-CN facilitates compliance with European CE mark standards without the need for additional specialized shielding or unique mounting hardware. The sensor translates mechanical movement into a precise voltage signal, providing the reliable data required for turbine supervisory instrumentation (TSI) and predictive maintenance programs. Moreover, its high-frequency radio signal resistance prevents data corruption in modern, electronically dense industrial facilities.
The 330909-00-20-10-02-CN features a robust 3/8-24 UNF threaded body and a 1.0-meter integrated cable. This cable is equipped with a miniature coaxial ClickLoc connector, which provides a secure, vibration-resistant link to extension cables. Furthermore, the armored cable construction protects the internal wiring from chemical degradation and physical abrasion. Since the system utilizes SpringLoc terminal strips for field wiring, technicians can complete installations quickly without specialized tools. This design philosophy emphasizes both ease of maintenance and long-term durability in the field.
With a lightweight design of only 0.14 kg, this proximity probe is suitable for high-density DIN-rail or panel-mount configurations. It excels in radial vibration measurement, thrust position monitoring, and tachometer applications for shafts as small as 51 mm (2 inches). Although the NSv series has a shorter linear range than standard 3300 XL probes, it provides superior performance in restricted geometries where other sensors would suffer from signal interference. Therefore, engineers across the oil, gas, and power generation sectors trust this probe for critical asset protection.
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