Description

Option 00 (0 mm unthreaded) and Option 04 (40 mm case length) specify this metric M10 x 1 3300 XL 8 mm proximity probe configuration — 330103-00-04-20-02-05. This unarmored, forward-mount eddy-current probe is designed for use within a 3300 XL proximity transducer system to provide precise, non-contact measurements of radial shaft vibration, axial position, and keyphasor reference signals. Operating on the eddy-current principle, the probe transfers high-frequency signals through a 2.0-meter standard coaxial cable (Option 20) terminated in a gold-plated miniature male ClickLoc connector (Option 02) to verify micro-level displacement changes on rotating machinery shafts. This metric-threaded configuration is engineered for environments requiring direct installation into metric machine casing brackets without protective armoring. While sibling variants utilize armored cable designs or FluidLoc technology to block leakage paths along the wire, this specific unarmored version offers maximum flexibility for standard conduit routes. The integration of Option 05 qualifies the assembly for extensive hazardous area applications, offering complete ATEX, IECEx, and CSA approvals for intrinsically safe or non-incendive installations in Zone 0, Zone 1, and Zone 2 environments.

Features

• Fully threaded case: Option 00 specifies a 0 mm unthreaded section, enabling deep thread insertion and fine gap adjustment in custom housings.
• Metric case profile: Option 04 defines a 40 mm overall case length with standard M10 x 1 external threading.
• 2.0-meter system compatibility: Option 20 provides a 2.0-meter (6.6 feet) total probe length, designed to match 3300 XL extension cables and Proximitor sensors.
• ClickLoc coaxial connector: Option 02 includes a miniature gold-plated coaxial click connection for positive physical locking and low electrical loss.
• Explosive area certification: Option 05 delivers integrated CSA, ATEX, and IECEx approvals for use in hazardous gas or dust environments.
• Rugged tip construction: High-durability polyphenylene sulfide (PPS) molded probe tip protects the internal coil from turbine oils, water, and chemical degradation.

Applications

• Fluid-film bearing clearance analysis on industrial steam turbines, gas turbines, and large centrifugal compressors.
• Thrust position and axial shaft displacement tracking on critical power-generation and petrochemical plant machinery.
• Rotational speed sensing and phase reference tracking on generator shafts using keyphasor trigger arrangements.
• Standard industrial machine monitoring across globally manufactured machinery built with M10 metric threaded mount points.

Ordering Information

Option / Segment	Code on This SKU	Description / Meaning
Orderable Part Number	330103-00-04-20-02-05	3300 XL 8 mm proximity probe, M10 x 1 thread, without armor
A - Unthreaded Length Option	00	0 mm unthreaded length (fully threaded)
B - Overall Case Length Option	04	40 mm overall case length
C - Total Length Option	20	2.0 meters (6.6 feet) total length
D - Connector and Cable Option	02	Miniature coaxial ClickLoc connector, standard cable
E - Agency Approval Option	05	CSA, ATEX, IECEx Approvals

Technical Specifications

Manufacturer	Bently Nevada (Baker Hughes)
Model / Part Number	330103-00-04-20-02-05
Thread Size	M10 x 1 metric thread
Unthreaded Length	0 mm
Overall Case Length	40 mm
Total Probe Length	2.0 meters (6.6 feet)
Cable Construction	75 Ohm triaxial fluoroethylene propylene (FEP) insulated cable
Connector Type	Miniature male coaxial ClickLoc connector (gold-plated)
Probe Tip Diameter	8.0 mm (0.31 in)
Probe Tip Material	Polyphenylene sulfide (PPS)
Case Material	AISI 303 or 304 stainless steel (SST)
Operating Temperature (Probe)	-52 degC to +177 degC (-62 degF to +350 degF)
Tensile Strength (Max)	330 N (75 lbf) probe case to probe lead
Minimum Cable Bend Radius	25.4 mm (1.0 in)
Weight	0.68 kg
Dimensions	150 mm x 150 mm x 25 mm (H x W x D) (coiled configuration)

Installation Guidelines

• Maintain the minimum permissible cable bend radius of 25.4 mm (1.0 in) during cable routing to avoid physical signal degradation.
• Ensure external thread engagement does not exceed the maximum recommended thread depth of 15 mm for M10 x 1 threads.
• Do not exceed the maximum rated probe torque of 33.9 N-m (300 in-lbf) when securing the metric case to the machine body or bracket.
• Isolate the coaxial connector connection using clean silicone tape if exposed to splash environments, ensuring no direct contact with structural grounds.

Compliance and Certifications

• CSA: Class I, Zone 0: AEx/Ex ia IIC T5...T1 Ga; Class I, Division 2, Groups A, B, C, D
• ATEX/IECEx: II 1 G Ex ia IIC T5...T1 Ga; II 3 G Ex nA IIC T5...T1 Gc; Ex ec IIC T5...T1 Gc
• RoHS: Compliant with European Community Directive 2011/65/EU and China RoHS standards
• Functional Safety: SIL 2 certified under system level safety configuration