SKU: 330851-06-000-070-50-00-05

Bently Nevada 330851-06-000-070-50-00-05 3300 XL NSv Proximity Probe

The Bently Nevada 330851-06-000-070-50-00-05 is a 3300 XL NSv Proximity Probe featuring an M10 x 1 metric thread and a 7.0-meter integrated cable. Designed for small shaft vibration and confined spaces, it offers high-precision displacement sensing and robust ClickLoc connectivity for critical machinery protection systems.

Product Description

The Bently Nevada 330851-06-000-070-50-00-05 functions as a specialized displacement sensor within the 3300 XL NSv (Non-Standard vent) Proximity Transducer System. This probe is specifically engineered for applications where standard 8mm probes cannot be used due to tight physical clearances or small target diameters. Because the NSv system utilizes a unique side-view rejection technology, it prevents interference from surrounding metal, ensuring that the signal represents only the actual vibration or position of the target shaft.

Furthermore, this configuration features a metric M10 x 1 thread with a 60mm case length, making it ideal for international machinery designs. The probe is equipped with a 7.0-meter total length, which often eliminates the need for an intermediate extension cable, thereby reducing the number of connection points and potential failure locations in the signal path. Since it is constructed with a high-strength polyphenylene sulfide (PPS) tip and a stainless steel case, it maintains high-precision measurements even in the presence of corrosive lubricants and extreme thermal cycles found in industrial rotating equipment.

Key Technical Characteristics

Manufacturer: Bently Nevada
Model Identification: 330851 (3300 XL NSv Probe)
Thread Type: M10 x 1 (Metric)
Unthreaded Length: 0 mm (Option -06, note: check specific unthreaded/case ratio)
Overall Case Length: 60 mm (Option -000)
Total Length: 7.0 meters (Option -070)
Connector Type: Miniature coaxial ClickLoc connector (Option -50)
Adapter Option: No adapter (Option -00)
Agency Approval: Multiple approvals (ATEX/IECEx/CSA) (Option -05)
Linear Range: 1.5 mm (60 mils)
System Type: Designed for use with 3300 XL NSv Proximitor Sensors
Calibration: Standard calibration for AISI 4140 steel

Industrial Applications

Vibration and reliability specialists deploy the 330851 NSv probe in high-performance monitoring environments. Specifically, the probe is critical for:

Centrifugal Compressor Monitoring: Measuring radial vibration on small-diameter shafts where standard probes suffer from “crosstalk” or side-viewing.
Small Steam Turbines: Providing axial thrust position data to protect against rotor-to-stator contact.
Gearbox Analysis: Monitoring shaft movement in tight internal housings where space for mounting hardware is severely limited.
Hydroelectric Governors: Tracking the position of critical control components in hydraulic regulation systems.