330710-000-050-50-02-05 Bently Nevada 3300 XL 11mm Sensor

Product Overview

The 330710-000-050-50-02-05 is an industrial-grade Bently Nevada 3300 XL 11 mm Proximity Probe manufactured in the USA. Designed for non-contact linear displacement and vibration monitoring, this sensor features an M16 x 1.5 metric thread with protective flexible stainless steel armor. Its extended linear sensing range makes it ideal for critical asset protection across heavy power and oil facilities.

Built with a polyphenylene sulfide (PPS) tip and AISI 304 stainless steel casing, the 3300 XL 11 mm Series delivers superior mechanical resistance. The integrated ClickLoc coaxial connector ensures reliable signal continuity across long service intervals in high-vibration turbomachinery environments.

Global PLC Spare HUB's Insight

Large shaft applications often exhibit significant mechanical axial float that exceeds standard 8 mm probe linear ranges. In field retrofits, engineers deploy the 330710-000-050-50-02-05 because its 11 mm tip geometry accommodates wider measurement spans without sacrificing voltage linear output. However, field technicians must strictly adhere to the 30.5 mm flat target area and 152 mm shaft diameter cross-talk limits to prevent adjacent metal interference from distorting dynamic voltage readings.

Configuration Breakdown

• 330710 — Base Model: 3300 XL 11 mm Probe with M16 x 1.5 Thread and SST Armor
  • -000 — Unthreaded Length: Fully threaded body (0 mm unthreaded portion)
  • -050 — Overall Case Length: 50 mm total threaded body length
  • -50 — Total Cable Length: 5.0 meters (16.4 feet) integral cable
  • -02 — Connector Option: Miniature coaxial ClickLoc connector, standard cable
  • -05 — Agency Approvals: Multiple hazardous zone international certifications

Technical Specifications

Target Machinery & Applications

• Rotor axial position measurement on high-power steam and gas turbine generator sets.
• Thermal casing growth tracking and differential expansion monitoring on multi-stage compressors.
• Keyphasor speed tracking and phase reference sensing on large diameter shaft couplings.
• Vibration monitoring on heavy industrial gearboxes and boiler feed pump assemblies.

Installation Guidance

• Torque the M16x1.5 probe case up to 21.1 N•m (187 in•lb) for standard mounting setups.
• Tighten ClickLoc coaxial connectors finger tight; never exceed 0.565 N•m (5 in•lb) max torque.
• Maintain a minimum shaft diameter clearance of 152 mm (6.0 in) to eliminate cross-talk errors.
• Ensure target flat surface diameter measures at least 30.5 mm (1.2 in) facing the tip.

Diagnostic Capabilities

• Provides continuous peak displacement readings across extended linear measurement gaps.
• Detects early shaft instability, unbalance, and rotor tilt during machine warm-up cycles.
• Prevents false alarm spikes caused by field electromagnetic interference through shielded construction.

Commercial Terms & Logistics

Frequently Asked Questions

Q1: Why does this model use an 11 mm probe tip instead of standard 8 mm options?

A1: The larger 11 mm tip delivers a longer linear measurement range, making it suitable for machines with greater shaft axial movement.

Q2: Can I connect this 5.0-meter probe directly to a 9-meter Proximitor Sensor?

A2: No, 5.0-meter probes must pair exclusively with 5.0-meter system Proximitor Sensors to preserve electrical balance and output scale accuracy.

Q3: How tight should the coaxial ClickLoc connectors be torqued during installation?

A3: ClickLoc connectors should be joined finger-tight; applying wrench force beyond 0.565 N•m (5 in•lb) can damage internal connector contact pins.

Q4: What environmental protection does option -05 agency approval provide?

A4: Option -05 satisfies multiple global hazardous area safety approvals, allowing certified operation in classified explosive gas or dust zones.

Q5: What happens if ambient temperature around the tip drops below -34°C?

A5: Exposing the probe assembly below -34°C (-30°F) risks premature degradation or loss of the internal pressure seal capability.

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