Bently Nevada 330106-05-30-50-12-CN 3300 XL 8 mm Reverse Mount Proximity Probe

Description

Option 05 (5.0 mm unthreaded length), Option 30 (30 mm case length), Option 50 (5.0 m total length), and Option 12 (ClickLoc connector with FluidLoc cable) specify this 330106-05-30-50-12-CN 3300 XL 8 mm Reverse Mount Proximity Probe with China hazardous area approvals (-CN).

This reverse-mount probe configuration features M10 x 1 metric threads and is engineered for installation inside machine casings or sleeves where standard forward-mounting is physically restricted. Unlike standard probes utilizing standard coaxial cables, this variant integrates a FluidLoc cable (Option 12), which provides a block against oil or process fluids from migrating along the cable via capillary action. Additionally, the 5.0-meter integral probe cable (Option 50) matches perfectly with a 5-meter 3300 XL Proximitor sensor, eliminating the need for an intermediate extension cable in specific turbine housing mounting layouts.

Features

• Option 05 unthreaded length provides a precise 5.0 mm (0.20 in) clearance at the mounting base.
• Option 30 case length specifies a 30 mm (1.2 in) total metric threaded housing of M10 x 1 thread size.
• Option 50 designates a 5.0-meter (16.4 feet) total integral probe cable length for direct connection to 5-meter Proximitor systems.
• Option 12 incorporates a FluidLoc cable and a miniature coaxial ClickLoc connector to halt oil leakage along the cable core.
• Suffix -CN certifies the assembly for China hazardous area environments under NEPSI and CCC regulations.
• Polyphenylene sulfide (PPS) probe tip provides chemical and thermal isolation up to 177 degC (350 degF).
• AISI 303 or 304 stainless steel case offers structural protection in high-vibration machinery casings.

Applications

• Axial position and radial vibration measurements in heavy industrial rotating machinery.
• High-pressure casing penetration where FluidLoc technology prevents lubricating oil migration.
• Reverse-mount turbine bearing housing installations with limited external access.
• Petrochemical and power generation installations in China requiring NEPSI and CCC hazardous area compliance.

Ordering Information

Technical Specifications

Installation Guidelines

• Reverse-mount probes are installed from the inside or inside a dedicated probe sleeve/housing.
• Observe the minimum permissible cable bend radius of 25.4 mm (1.0 in) to prevent internal conductor damage.
• Hand-tighten the ClickLoc coaxial connector to avoid stripping gold-plated surfaces; do not exceed 0.565 Nm (5 in-lbf).
• Mount the probe-to-extension cable junction in a clean dry location; avoid exposing connectors directly to aggressive turbine lubricating oil without a protective sleeve.
• Ensure the probe case torque does not exceed 22.6 Nm (200 in-lbf) during reverse-mount seating in the M10 x 1 threaded housing.

Compliance and Certifications

• NEPSI (National Supervision and Inspection Centre for Explosion Protection and Safety of Instrumentation)
• CCC (China Compulsory Certification)
• Hazardous area explosion-proof markings as specified by the -CN package