Bently Nevada 330701-00-20-10-11-00 3300 XL 11 mm Proximity Probe

Description

Option 00 (0.0 in unthreaded length) and Option 11 (ClickLoc connector with protector, FluidLoc cable) specify this 3300 XL 11 mm proximity probe configuration — 330701-00-20-10-11-00. This eddy-current non-contacting sensor measures vibration and rotor position within 3300 XL 11 mm proximity transducer systems. Featuring a 1/2-20 UNF thread without armor, this configuration includes a 2.0-inch case length, a 1.0-meter total cable length, and no hazardous area approvals.

This probe provides a linear measurement range of 4.0 mm (160 mils), generating a scale factor of 3.94 V/mm (100 mV/mil) when connected to a compatible extension cable and Proximitor sensor. Compared to standard 3300 XL 8 mm probes, the larger 11 mm tip delivers a longer linear range. The FluidLoc cable construction stops oil or process fluids from leaking through the internal gap of the cable coax, making it suitable for wet or oil-exposed installations.

Features

• Unthreaded Length: 0.0 inches (Option 00) for fully threaded case installations.
• Overall Case Length: 2.0 inches (Option 20) with 1/2-20 UNF-2A thread.
• Cable Type: FluidLoc cable (Option 11) prevents oil or other fluids from migrating through the internal structure of the cable.
• Connector: Miniature coaxial ClickLoc connector equipped with a factory-installed fluorosilicone connector protector.
• Non-Armored Construction: Compact, unarmored FEP insulated coaxial lead with 1.0 meter (3.3 feet) total length.
• Linear Range: Extended 4.0 mm (160 mils) linear measurement range starting at approximately 0.5 mm (20 mils) from the target.
• Output Sensitivity: Generates 3.94 V/mm (100 mV/mil) output when paired with the compatible 3300 XL Proximitor Sensor and extension cable.

Applications

• Steam turbine ramp differential expansion monitoring.
• Reciprocating compressor rod drop and rod position measurements.
• Steam and gas turbine rotor axial (thrust) position and shaft vibration tracking.
• High-speed rotating machinery shaft vibration and radial position.
• Tachometer, zero-speed, and phase reference (Keyphasor) measurements.

Ordering Information

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Mount the standard 1/2-20 UNF thread probe case through the machine bracket or housing using the supplied lock nut.
• Maintain a target flat surface diameter of 30.5 mm (1.2 in) or larger to ensure performance and prevent cross-talk.
• Apply the recommended torque of 15.2 N-m (133 in-lb) during installation. Do not exceed the maximum rated torque limit of 45.2 N-m (400 in-lb).
• Ensure the coaxial lead is not bent below its minimum bend radius of 25.4 mm (1.0 in) at any point.
• Keep the probe tip at the recommended gap distance of 2.5 mm (100 mils) from the target surface for optimal mid-range measurement accuracy.

Compliance and Certifications

• CE and FCC Part 15 compliant.
• RoHS Directive 2011/65/EU and China RoHS compliant.
• Functional Safety: Certified up to SIL 2 (HFT=0) or SIL 3 (HFT=1) when implemented within a certified safety system loop.
• Agency Approvals: Supplied under Option 00 (No agency approvals required/included for this specific SKU).