Bently Nevada 330703-00-100-10-11-CN 3300 XL 11 mm Proximity Probe

Description

Option 00 (0 mm unthreaded length) and Option 11 (ClickLoc connector with protector, FluidLoc cable) specify this metric 3300 XL 11 mm Proximity Probe configuration — 330703-00-100-10-11-CN. This configuration is built for metric mounting environments requiring a threaded case diameter of M14 x 1.5 and an overall case length of 100 mm. The unarmored assembly is supplied with a 1.0 meter (3.3 feet) integrated FluidLoc cable that acts as an oil-tight barrier, preventing fluid migration through the internal probe structure. The addition of the -CN suffix guarantees compliance with Chinese NEPSI and CCC hazardous area certifications, optimizing the probe for installation in dangerous industrial plants. As part of the 3300 XL 11 mm system, this probe has a longer linear range than standard 8 mm probes, making it suitable for axial position measurements, differential expansion, or radial vibration on steam turbines, compressors, and rotating machinery.

Features

• Option 00 specifies a 0 mm unthreaded length on a fully threaded M14 x 1.5 stainless steel case.
• Option 100 provides a 100 mm overall case length for metric mounting.
• Option 10 sets a 1.0 meter (3.3 feet) integrated probe cable length.
• Option 11 designates a miniature coaxial ClickLoc connector with an integrated fluorosilicone connector protector.
• FluidLoc cable technology prevents fluid leakage and migration along the inner core of the cable.
• Suffix -CN incorporates pre-verified NEPSI and CCC China hazardous area approvals.

Applications

• Ramp differential expansion measurements on steam turbines.
• Thrust and axial position measurements on high-speed rotating shafts.
• Radial vibration and shaft position tracking on fluid-film bearing machinery.
• Rod position and rod drop monitoring in heavy reciprocating compressors.
• Tachometer, phase reference (Keyphasor), and zero-speed measurements.

Ordering Information

Option / Segment	Code on This SKU	Description
Base Model	330703	3300 XL 11 mm Probe, M14 x 1.5 thread, without armor
A - Unthreaded Length	00	0 mm unthreaded length
B - Case Length	100	100 mm overall case length
C - Total Length	10	1.0 meter (3.3 feet) total length
D - Connector and Cable	11	Miniature coaxial ClickLoc connector with connector protector, FluidLoc cable
Suffix -CN	-CN	China hazardous area approval package (NEPSI and CCC certifications)

Technical Specifications

Manufacturer	Bently Nevada (Baker Hughes)
Model/Part Number	330703-00-100-10-11-CN
Transducer Type	11 mm Eddy-Current Proximity Probe
Linear Range	4.0 mm (160 mils), beginning at approximately 0.5 mm (20 mils) from the target
Incremental Scale Factor (ISF)	3.94 V/mm (100 mV/mil) +/-10% including interchangeability
Recommended Gap Setting	2.5 mm (100 mils)
Best Fit Straight Line (DSL) Deviation	Less than +/-0.10 mm (+/-4 mils) at standard temperatures; less than +/-0.15 mm (+/-6 mils) at extended temperatures
Target Material	AISI 4140 steel (flat surface, minimum 30.5 mm diameter)
Frequency Response	0 to 8 kHz (+0, -3 dB typical) with up to 305 meters of field wiring
Probe Tip Material	Polyphenylene sulfide (PPS)
Probe Case Material	AISI 304 stainless steel (SST)
Cable Type	Unarmored 75 ohm triaxial, FEP insulated, FluidLoc style
Probe Case Torque (Maximum)	63.3 N-m (560 in-lb)
Probe Case Torque (Recommended)	21.1 N-m (187 in-lb)
Connector Type	Gold-plated brass ClickLoc miniature coaxial with fluorosilicone protector
Minimum Bend Radius	25.4 mm (1.0 in)
Probe Operating Temperature	-52 degC to +177 degC (-62 degF to +351 degF)
Relative Humidity	100% condensing, non-submersible when connectors are protected
System Compatibility	3300 XL 11 mm Proximitor Sensor (330780), 3300 XL 11 mm Extension Cables (330730)

Installation Guidelines

• Grounding: Ensure the coaxial connector outer shield is isolated from the machine housing to prevent ground loops.
• Shielding: Use twisted, shielded field wiring between the Proximitor sensor and the monitor, grounding the shield only at the monitor end.
• Cable Routing: Maintain a minimum bend radius of 25.4 mm (1.0 in) for all probe and extension cables. Secure cables properly to prevent whipping or dynamic wear.
• Probe Gap: Set the initial probe gap to the recommended 2.5 mm (100 mils) using a digital voltmeter or thickness gauges.
• Connector Protection: Hand-tighten the miniature coaxial ClickLoc connector and ensure the integrated fluorosilicone protector covers the junction fully to shield against moisture and contaminants.

Compliance and Certifications

• NEPSI & CCC: Certified under the China hazardous area approval package (-CN suffix).
• CE Mark: Compliant with European EMC Directive 2014/30/EU and RoHS Directive 2011/65/EU.
• Standards: Tested to EN 61000-6-2 (Industrial Immunity) and EN 61000-6-4 (Industrial Emissions).