330905-00-20-10-02-05 Bently Nevada 3300 NSv Proximity Probe

Product Overview

The Bently Nevada 330905-00-20-10-02-05 is a specialized 3300 NSv proximity probe engineered for high-accuracy vibration and position monitoring in confined industrial spaces. This M10X1 threaded sensor features a significant 200mm case length for deep-reach applications and has a total shipping weight of 0.35 kg. Built with advanced polyphenylene sulfide (PPS) tips and AISI 304 stainless steel housing, it provides 30% better chemical resistance than legacy RAM probes, making it the industry standard for process compressor monitoring.

Technical Configuration

Optimized for Small Shafts

The 3300 NSv series excels where standard probes fail, specifically on shaft diameters smaller than 13 mm (0.5 in). Its superior side-view characteristics reduce interference from surrounding metal, ensuring stable readings. This configuration includes a 1.0-meter total length cable equipped with a Miniature coaxial ClickLoc connector for secure, vibration-resistant electrical contact.

Extreme Environment Resilience

Constructed for the harshest conditions, the probe maintains operational integrity in temperatures ranging from -52°C to +177°C. The internal Viton O-ring creates a robust seal against differential pressure, while the FEP-insulated 75 Ω coaxial cable ensures signal purity across distances up to 305 meters when integrated with a Proximitor sensor.

Technical Specifications

Installation & Maintenance Guide

Ensure the M10X1 probe case is tightened to the recommended torque of 7.5 N•m (66 in•lb) for the first three threads to prevent vibration loosening. Maintain a minimum bend radius of 25.4 mm (1.0 in) for the coaxial cable to avoid internal conductor damage. For optimal accuracy, gapping should be set at 1.0 mm (40 mils), approximately -9 Vdc. Regularly verify the probe dc resistance, which should measure 4.2 ± 0.5 ohms for this 1.0m configuration.

Engineering Advantages

The 3300 NSv series offers full mechanical and electrical interchangeability with legacy 3300 RAM components, allowing for seamless facility upgrades. Its enhanced chemical resistance is particularly beneficial in "sour gas" environments or applications involving heavy hydrocarbons. The Multiple Approvals (-05) option ensures compliance with global safety standards for deployment in hazardous industrial zones.

Technical FAQs

Q1: Can this probe be used on shafts smaller than 13mm?
A1: Yes, it is specifically designed for small shafts, though you should reduce the gap setting slightly to maintain the correct scale factor.

Q2: What is the benefit of the PPS tip material?
A2: Polyphenylene sulfide (PPS) offers high-strength resistance to chemical corrosion and thermal degradation up to 177°C.

Q3: Does the 330905-00-20-10-02-05 come with a warranty?
A3: Yes, this Bently Nevada probe includes a 12-month factory warranty and arrives in original factory packing.