330904-08-15-05-11-05 Bently Nevada 3300 NSv Probe In Stock Fast Ship

Overview

The 330904-08-15-05-11-05 is an industrial-grade non-contact eddy current transducer from the Bently Nevada 3300 NSv Series. Specially designed for small-shaft rotating machinery, tight target areas, and counterbore mounting configurations, this probe provides precise dynamic displacement, shaft position, and vibration measurement. Featuring an M8x1 thread, protective stainless steel armor, a FluidLoc cable, and multiple hazardous area approvals, the 330904-08-15-05-11-05 probe delivers high chemical tolerance and reliable operation under harsh fluid exposures.

Configuration Breakdown

• 330904: 3300 NSv Probe (M8x1 thread, with stainless steel armor)
  • -08 (Unthreaded Length): 80 mm unthreaded case section
  • -15 (Overall Case Length): 150 mm total thread/case length
  • -05 (Total Length): 0.5 meter (20 inches) total probe length
  • -11 (Connector & Cable Type): Miniature coaxial ClickLoc connector with connector protector, FluidLoc cable
  • -05 (Agency Approval): Multiple International Hazardous Area Approvals

Technical Specifications

Model Selection & Technical Comparison

Engineering Application Recommendation: Select the 330904-08-15-05-11-05 when mounting through thick bearing housings that require a 150 mm case depth and full hazardous area compliance. The integrated FluidLoc armor prevents oil penetration along the internal cable sheath, making it ideal for high-pressure process compressor interiors. Alternatively, use the 330904-08-10-10-12-00 for general-purpose non-hazardous applications with shorter 100 mm housing dimensions and 1.0-meter lead requirements.

Target Machinery & Diagnostic Use Cases

• Small Shaft Compressors: Ideal for shaft diameters under 20 mm where standard 8mm probes experience severe side-view target interference.
• Centrifugal Pumps & Blowers: Measures radial vibration and axial thrust position inside narrow bearing clearance pockets.
• Process Gas Expanders: PPS tip construction offers superior chemical resistance against hydrocarbon solvents compared to legacy 3300 RAM hardware.
• Diagnostic Telemetry: Connects to Bently Nevada 3500 monitoring systems to detect dynamic shaft orbit motion, oil whirl, unbalance, and mechanical looseness.

Packaging, Logistics & Warranty

• Product Condition: Guaranteed brand new and original in factory-sealed packing.
• Warranty Coverage: Includes 12 months full factory warranty protection.
• Dispatch Lead Time: Ships within 24 to 48 hours from warehouse inventory.
• Global Logistics Partners: Fast door-to-door delivery via FedEx Express, UPS, and DHL.

Global PLC Spare HUB's Insight

The Bently Nevada 3300 NSv transducer family fills a critical role when standard 8 mm probes cannot physically fit due to side clearance limits. During a maintenance turnaround on a high-speed gas booster compressor, site technicians experienced scale factor distortion when using standard eddy current probes. The narrow counterbore walls of the bearing casing created side-view electronic loading, corrupting shaft gap readings.

Upgrading to the 330904-08-15-05-11-05 probe resolved the issue. The NSv probe tip profile significantly reduces side-view sensitivity, allowing clean target tracking inside tight M8 tapped openings. Furthermore, utilizing the 150 mm case option eliminated the need for external mounting brackets, while the FluidLoc armored cable successfully prevented lube oil migration into the external junction box.

Frequently Asked Questions & Procurement Guide

What extension cables and Proximitor sensors must be paired with this 0.5-meter probe?

To maintain calibrated system performance, match this 0.5-meter probe with a 3300 NSv extension cable and Proximitor sensor configured for a total system length of either 5.0 meters or 7.0 meters. The sum of probe length plus extension cable length must equal the Proximitor sensor rating.

How do I properly torque the M8x1 probe body during mounting to prevent mechanical damage?

Thread the M8x1 body into the mounting port finger tight first. When tightening mounting jam nuts, apply a maximum torque of 5.1 N·m (45 in·lb) to avoid stripping the precision threads or distorting the internal Viton pressure seal.

What operational steps are required if the measured DC gap voltage reads outside the -1 Vdc to -13 Vdc linear window?

First, verify target shaft diameter and material composition (calibrated for AISI 4140 steel). Next, adjust probe depth using a micrometer or DC voltmeter until the gap voltage reaches approximately -9.0 Vdc, corresponding to the recommended 1.0 mm (40 mil) mechanical center gap.

Why is the FluidLoc cable option critical for process compressor installations?

The FluidLoc option prevents oil, process gases, and moisture from traveling along the internal cable strands via capillary action. This feature ensures that process fluids inside the compressor housing do not leak through the probe cable into dry terminal enclosures.

What is the minimum bend radius allowed for armored 3300 NSv probe leads?

Maintain a minimum bend radius of 25.4 mm (1.0 inch) along the entire armored cable assembly. Bending the cable beyond this limit risks pinching internal coaxial conductors and degrading dynamic signal attenuation at high frequencies.

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