Description

Option 02 (0.2 in unthreaded length), Option 12 (1.2 in overall case length), Option 15 (1.5 m total length), Option 12 (FluidLoc cable), and suffix -CN (China hazardous area approval package) specify this Bently Nevada 330105-02-12-15-12-CN reverse mount proximity probe configuration. This non-contacting eddy-current sensor is used for shaft vibration and axial position measurement on rotating machinery, pairing with a 3300 XL Proximitor sensor and standard extension cable. Unlike standard configurations using the standard cable (Option 02) or alternative agency approvals, this variant integrates a FluidLoc cable (Option 12) which blocks fluid migration along the coaxial core. The configuration is constructed with a 3/8-24 UNF thread body, a fixed 0.2-inch unthreaded length, and a 1.2-inch overall case. The -CN suffix adds NEPSI and CCC certified hazardous area protection, making it compliant for deployment within Chinese industrial operations.

Features

• FluidLoc cable (Option 12) prevents process liquid leakage along the cable interior
• Reverse-mount design featuring 3/8-24 UNF-2A threading and integrated hexagonal wrench flat
• 1.5-meter (4.9 feet) total system probe length (Option 15) matching 3300 XL 5-meter or 9-meter systems
• 0.2-inch unthreaded case length (Option 02) with 1.2-inch overall case length (Option 12)
• Miniature male coaxial ClickLoc connector provides secure coupling to extension cables
• -CN suffix compliance includes NEPSI and CCC certifications for hazardous locations in China

Applications

• Industrial rotating machinery monitoring including steam turbines, gas turbines, and compressors
• Shaft axial position and radial vibration measurements
• Fluid-submerged environments requiring high-resistance cable sealing
• Hazardous industrial zones within China requiring CCC and NEPSI approvals

Ordering Information

Segment / Option	Code on This SKU	Meaning / Description
Orderable Part Number	330105-02-12-15-12-CN	3300 XL 8 mm Reverse Mount Proximity Probe, 3/8-24 UNF threads
A - Unthreaded Length Option	02	0.2 in unthreaded length
B - Overall Case Length Option	12	1.2 in overall case length
C - Total Length Option	15	1.5 meters (4.9 feet) total system probe length
D - Connector and Cable Option	12	Miniature coaxial ClickLoc connector, FluidLoc cable
Agency Approval / Suffix	-CN	China hazardous area approval package (NEPSI + CCC + applicable markings)

Technical Specifications

Parameter	Specification Value
Manufacturer	Bently Nevada (Baker Hughes)
Part Number / Model	330105-02-12-15-12-CN
System Platform	3300 XL 8 mm Proximity Transducer System
Probe Type	Reverse Mount, Eddy-Current
Thread Size	3/8-24 UNF-2A
Unthreaded Length	0.2 in (5.08 mm)
Case Length	1.2 in (30.48 mm)
Total Length	1.5 meters (4.9 feet)
Cable Type	FluidLoc coaxial cable
Connector Type	Miniature male coaxial ClickLoc connector
Target Material Calibration	AISI 4140 Steel
Nominal DC Resistance	7.73 ohms (typical between center and outer conductor)
Probe Temperature Range	-52 degC to +177 degC (-62 degF to +350 degF) operating and storage
Pressure Seal Material	Viton O-ring
Humidity Resistance	Less than 3% change in Average Scale Factor (ASF) under 93% humidity (IEC 68-2-3)
Dimensions	31 mm x 12 mm x 12 mm (H x W x D)
Weight	0.15 kg

Connections and Interfaces

The probe features an integrated miniature male coaxial ClickLoc connector designed to connect securely with a standard 3300 XL extension cable. No special tools are required, and the connector is rated for finger-tight installation.

Installation Guidelines

• For 3/8-24 UNF threads, the maximum length of thread engagement is 0.563 in.
• Ensure coaxial cable routing maintains a minimum bend radius of 25.4 mm (1.0 in) to prevent damage. Avoid kinking or stretching the cable.
• The reverse mount probe is typically mounted from the rear side of a machine casing using an optional probe sleeve or bracket. Avoid over-tightening during installation.
• Handle the FluidLoc cable carefully; although designed to prevent oil migration, excessive bending can degrade performance.

Compliance and Certifications

• NEPSI (Explosion Protection Certification)
• CCC (China Compulsory Certification)
• CE Compliant