Bently Nevada 330908-00-30-10-01-CN ClickLoc Probe

Product Overview

The 330908-00-30-10-01-CN is an industrial eddy current displacement sensor from Bently Nevada’s specialized 3300 NSv (Narrow System) series. Purpose-built for critical machinery diagnostics—including fluid-film bearing vibration, thrust position, and high-speed shaft observation—this non-contacting proximity probe excels in locations with narrow physical clearances or small target diameters. It features an elongated 3.0-inch AISI 304 stainless steel case, fully threaded without an unthreaded segment, and an integrated 1.0-meter FEP-insulated coaxial cable. This specific configuration features a miniature ClickLoc connector fitted with a rugged factory connector protector, alongside regional country-specific approvals for seamless integration into localized hazardous or regulated zones.

Core Technical Advantages

• Aggressive Chemical Resilience: Engineered with advanced material bonding that significantly outclasses legacy 3300 RAM probes, allowing long-term, direct deployment inside harsh process gas compressors.
• Precision Side-View Dynamics: Exceptional side-view immunity ensures tight mechanical installations can occur near cross-sectional walls without side-loading interference or corrupted gap calibration.
• Connector Protection Shielding: The 01 Option Code supplies a specialized connector protector over the miniature ClickLoc junction, keeping the high-frequency coaxial mating point secure against fluid ingress and mechanical strain.
• Extended Installation Geometry: A 3.0-inch overall case length provides deep penetration clearance through outer machine blocks or thick bracket housings, ensuring the probe tip aligns perfectly with the target.

Technical Specifications

Engineering Installation & Maintenance

• Torque Limitations: Threading the 3/8-24 probe into place requires a recommended installation torque of 11.3 N·m (100 in·lb), absolute maximum rated at 33.9 N·m (300 in·lb). Exceeding this boundary risk cracking or deforming the stainless steel casing. The coaxial connector assembly should be tightened finger-tight up to a ceiling of 0.56 N·m (5 in·lb).
• Thread Depth Limit: Maximum thread engagement within the machinery entry port is restricted to 0.563 inches to shield the inner mechanism from over-penetration hazards.
• Minimum Cable Bend Radius: Maintain a minimum continuous bend radius of 25.4 mm (1.0 inch) when routing the 1-meter FEP coaxial line across conduits or brackets to maintain core insulation integrity.
• Target Area and Shaft Scale: The flat shaft target requires a minimum diameter of 8.9 mm (0.35 in), with a recommended minimum of 13 mm (0.5 in). If checking smaller axial shafts, expect a scale factor shift; adjusting the probe closer to the target can mitigate this variance.

Why Choose This Model

• Drop-in Heritage Compatibility: Fully interchangeable mechanically and electrically with legacy Bently Nevada 3300 RAM series equipment, enabling direct upgrades without updating control panel Proximitor monitors.
• Long-Distance Integrity: Delivers linear frequency responses of 0 to 10 kHz (+0, -3 dB typical) and can route signals across up to 305 meters (1,000 feet) of field wiring using three-conductor shielded triad cabling.
• Viton O-Ring Sealing: Incorporates an internal Viton O-ring pressure barrier built into the case frame, safeguarding structural gas boundaries under heavy machine pressure differentials.
• Lightweight Structural Integration: Weighing only approximately 34 grams, this lightweight sensor minimizes parasitic mass loading on small bracket assemblies while remaining completely stiff and resilient under heavy machine G-forces.

Technical FAQs

Q1: What is the purpose of the "-CN" suffix on this probe configuration?
A1: The "-CN" suffix indicates that the proximity probe is certified with country-specific hazardous area and environmental approvals necessary for targeted regional regulations.

Q2: Why does this probe show a higher nominal DC resistance than the 0.5-meter models?
A2: Because this variant includes an extended 1.0-meter integral cable, the natural internal wire resistance increases the nominal scale to 4.2Ω ± 0.5Ω.

Q3: How does the connector protector function during maintenance?
A3: The pre-installed protector acts as a sleeve over the ClickLoc interconnect, preventing grease, fluids, and fine particulates from compromising the high-frequency coaxial transmission signal path.