330905-00-10-05-12-00 Bently Nevada | FluidLoc NSv Probe

Product Overview

The Bently Nevada 330905-00-10-05-12-00 is an advanced proximity probe from the 3300 NSv (Near Side view) series, specifically engineered for precision monitoring in confined industrial spaces. This model features an M10x1 thread, a 100mm overall case length, and a 0.5-meter (20-inch) total length. A key highlight of this configuration is the FluidLoc cable, which provides enhanced protection against fluid migration through the cable's interior. Designed for high-performance vibration and position measurements, it is particularly suited for process compressors where chemical resistance and side-view accuracy are paramount.

Technical Specifications

Core Technical Advantages

FluidLoc Signal Protection

The inclusion of the FluidLoc cable significantly improves reliability in environments where oil, moisture, or other process fluids are present. FluidLoc technology prevents fluids from wicking through the cable, ensuring that the high-frequency vibration signals remain clear and the Proximitor sensor is protected from contamination, even over long-term deployments.

Superior Chemical & Side-View Performance

The 3300 NSv series is optimized for "Near Side view" gapping. It provides more accurate displacement readings than legacy 190 probes when mounted close to target obstructions. Additionally, the PPS probe tip offers vastly superior chemical resistance compared to legacy RAM probes, making it the standard for aggressive process gas compressor applications.

Interchangeable Precision

Despite its advanced features, this probe remains mechanically and electrically interchangeable with Bently Nevada’s previous 3300 RAM series. With a 7.87 V/mm (200 mV/mil) scale factor and ±0.06 mm DSL accuracy, it integrates seamlessly into existing vibration monitoring frameworks without requiring extensive recalibration of legacy systems.

Installation & Maintenance

• Mounting Torque: For the M10x1 housing, a recommended operational torque of 7.5 N•m is advised for the first three threads. Never exceed the maximum rating of 22.6 N•m to prevent thread stripping or housing distortion.
• Connector Maintenance: The miniature coaxial ClickLoc connector should be torqued to "finger tight" (max 0.56 N•m). This ensuring a vibration-resistant electrical path while allowing for manual disconnection during maintenance.
• Pressure Integrity: The probe features a Viton O-ring designed to seal differential pressure between the tip and the case. This is essential for maintaining process containment in pressurized machinery housings.

Engineering Advantages

The Bently Nevada 330905-00-10-05-12-00 weighs approximately 0.38 kg and is constructed with an AISI 304 stainless steel case for maximum durability. Its extreme thermal range (-52°C to +177°C) ensures stable performance in both cryogenic and high-heat industrial environments. The probe’s 10 kHz frequency response ensures that even the most subtle machinery faults are detected early, protecting critical rotating assets from catastrophic failure.

Technical FAQs

Q1: What is the benefit of the 100mm case length?
A1: The 100mm overall case length provides the necessary reach for mounting the probe through thick machine casings or internal brackets while keeping the cable connector safely accessible outside the machine's oily environment.

Q2: Does the 0.5m probe length include the connector?
A2: Yes, the "Total Length" option (05) refers to the 0.5-meter distance from the probe tip to the end of the coaxial ClickLoc connector.

Q3: How does the NSv series handle small target diameters?
A3: While a 13mm target is recommended, measurements can be taken on shafts as small as 8.9mm. However, small targets may alter the scale factor; reducing the gap can help mitigate this effect.