Description

Non-contact eddy-current displacement measurement for 3300 XL monitoring chains; orderable configuration 330103-05-10-10-02-05 (0.5 in unthreaded length, 1.0 m total length). This 3300 XL 8 mm proximity probe utilizes 1/4-28 UNF threads and is intended for integration with 3300 XL Proximitor sensors and extension cables. The configuration includes the standard Miniature ClickLoc connector (Option 02) and meets CSA, ATEX, and IECEx hazardous area requirements (Option 05). The probe is engineered for reliable measurement of shaft vibration and axial position in critical rotating machinery. The 1/4-28 UNF thread distinguishes this model from the more common 3/8-24 UNF 330101 series, providing specific mounting capabilities for hardware requiring a finer thread profile.

Features

• 8 mm probe tip diameter for consistent signal output in 3300 XL systems
• 1/4-28 UNF thread for specialized mounting applications
• Option 05 unthreaded length (0.5 in) and Option 10 case length (1.0 in)
• Miniature ClickLoc connector with standard cable (Option 02)
• Hazardous area approvals: CSA, ATEX, and IECEx (Option 05)
• Compatible with 3300 XL 8 mm Proximitor sensor systems

Applications

• Turbine and compressor shaft vibration monitoring
• Rotor axial position measurement
• Critical rotating machinery protection
• Fluid film bearing monitoring

Ordering Information

Option	Code on This SKU	Description
Orderable Part Number	330103-05-10-10-02-05	3300 XL 8 mm Proximity Probe, 1/4-28 UNF
A - Unthreaded Length	05	0.5 in
B - Case Length	10	1.0 in
C - Total Length	10	1.0 m
D - Connector/Cable	02	Miniature ClickLoc, standard cable
E - Agency Approval	05	CSA, ATEX, IECEx

Technical Specifications

Parameter	Specification
Manufacturer	Bently Nevada
Part Number	330103-05-10-10-02-05
Probe Diameter	8 mm
Thread Size	1/4-28 UNF
System Length	1.0 m
Connector Type	Miniature ClickLoc
Linear Range	2 mm (80 mil)
Operating Temperature	-51 degC to +177 degC
Case Material	AISI 303 or 304 Stainless Steel
Agency Approvals	CSA, ATEX, IECEx

Installation Guidelines

• Ensure proper probe gap settings per the monitoring system manual (typically 1.27 mm nominal gap).
• Use appropriate wrench flats for installation; do not overtighten threads.
• Ensure coaxial cable connectors are clean and free of moisture before mating.
• Maintain minimum bend radius requirements for extension cables to prevent signal degradation.
• Verify hazardous area installation practices if using in classified locations.

Compliance and Certifications

• CSA: Class I, Division 2, Groups A, B, C, D
• ATEX: II 1 G Ex ia IIC T90 degC / T5 or T4
• IECEx: Ex ia IIC T90 degC / T5 or T4