Features:
- 330908-00-20-10-02-00 provides 1-meter NSv probe with 3/8-24 thread, 2.0-inch case, zero unthreaded length.
- Enhanced sideview and small target characteristics for tight installations, small shafts, and small targets.
- TiLoc and CableLoc deliver 220N pull strength with gold ClickLoc connectors for reliable vibration monitoring.
The 330908-00-20-10-02-00 is specifically designed for machinery monitoring applications where standard 5 mm and 8 mm probes cannot fit due to space constraints. The zero unthreaded length (00) means the 3/8-24 UNF threads begin immediately at the probe tip, eliminating any smooth cylindrical section before threading. The 2.0-inch case length provides a compact probe body for shallow mounting holes. The 1.0-meter total length allows the Proximitor sensor to be mounted at a moderate distance. This configuration satisfies the NSv design rule requiring unthreaded length to be at least 0.7 inches less than case length (0.0" ≤ 2.0" - 0.7" = 1.3").
The 330908-00-20-10-02-00 is optimized for applications where standard transducers cannot reliably measure due to target size limitations. It is ideal for measuring radial vibration on shafts smaller than 51 mm (2 inches) in diameter or axial position on flat targets smaller than 15 mm (0.6 inches). The enhanced sideview characteristics of the NSv probe are superior to those of the 3000-series 190 probe when gapped at the same distance from the probe target. The average scale factor is 7.87 V/mm (200 mV/mil), which is the most common output for eddy current transducers. The linear range is 1.5 mm (60 mils), which exceeds the linear range of the 3000-series 190 Transducer System.
The 330908-00-20-10-02-00 incorporates patented design features for maximum durability in industrial environments. TiLoc molding creates a permanent, robust bond between the probe tip and the probe body, eliminating a common failure point found in older designs where the tip could become loose due to vibration or thermal cycling. This is critical in high-vibration applications such as compressors and turbines. CableLoc technology secures the probe cable with 220 N (50 lbf) pull strength, preventing accidental disconnection during installation or machine operation. The gold-plated ClickLoc connectors are corrosion-resistant and lock into place with a positive click, preventing loosening from vibration.
The 330908-00-20-10-02-00 Bently Nevada Proximity Probe may still be available for purchase and support from Apter Power beyond
End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 330908-00-20-10-02-00 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. All prices are
shown in USD.
Bently Nevada 330908-00-20-10-02-00 Proximity Probe Specs
General
- Manufacturer GE / Bently Nevada
- Model 330908-00-20-10-02-00
- Condition New Original ready stock
- Product Family
330908-00-20-10-02-05,330908-00-20-10-02-CN,330908-00-20-10-02-RU
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.
- Small Diameter Shafts: Standard probes suffer from a compromised scale factor on small targets. The NSv probe is optimized for shafts smaller than 51 mm (2.0 inches).
- Confined Installation Spaces: Ideal for machinery with severe counterbore, side-view, or rear-view restrictions that would otherwise cause side-wall interference.
- Centrifugal and Process Gas Compressors: Widely used in centrifugal air compressors, refrigeration compressors, and small turboexpanders.
- Industrial Pumps and Small Steam Turbines: Monitors fluid-film bearing performance and rotor dynamics in high-speed, low-clearance equipment.
- Dynamic Radial Vibration: Tracks actual shaft centerline movement and orbit paths within the fluid-film bearing, alerting operators to unbalance, misalignment, or oil whirl.
- Axial (Thrust) Position Monitoring: Measures micro-inch axial shifts of the rotor shaft to prevent catastrophic internal contact between the compressor impellers and the machine casing.
- Transducer Self-Diagnostics (NOT OK Signal): The connected Proximitor sensor continuously checks the electrical integrity of the probe circuit. If the probe cable breaks, short-circuits, or detaches, the system drops the DC bias voltage and flags a "NOT OK" status to the control room, preventing false machine trips.
- Target Material Calibration: The standard system is calibrated at the factory using AISI 4140 steel. If your machinery uses a different target alloy, the system requires bench recalibration to adjust the scale factor.
- Mechanical Gapping: Thread the probe into the mounting bracket or housing until the electrical gap sits at the center of its 1.5 mm (60 mils) linear range. Measure this using a digital multimeter checking the Proximitor’s DC output voltage (typically targeted around -9.0 Vdc for the midpoint of the NSv system) or verified manually with a feeler gauge.
- Side-View Clearance: Ensure a minimum clearance radius around the tip. While the NSv has a tighter magnetic field than standard probes, it still requires adequate spacing from counterbore walls to prevent eddy-current dissipation into the housing.