Bently Nevada 330851-02-000-066-10-00-00 3300 XL 25 mm Proximity Probe

Description

330851-02-000-066-10-00-00 is a 3300 XL 25 mm proximity probe configured with an M30x2 metric threaded case (Option 02), 0.0 mm unthreaded length (Option 000), 66 mm overall case length (Option 066), 1.0 m total length (Option 10), unarmored cable (Option 00), and standard approvals (Option 00).

This eddy-current displacement probe is used for non-contact, large-target measurements like steam turbine differential expansion or rotor axial thrust position. Combining a front-and-rear sealing design with standard perfluoroalkoxyethylene (PFA) insulated FluidLoc cable, it prevents moisture ingress into the probe tip. High-temperature ClickLoc connectors are standard and feature a removable collar on the probe lead female connector to simplify installation inside tight conduit clearances.

Features

• Threaded Case: Option 02 provides a metric M30x2 threaded housing made of AISI 304 stainless steel.
• Unthreaded Length: Option 000 provides a fully threaded case length of 0.0 mm.
• Case Length: Option 066 provides a 66 mm overall case length.
• Total Length: Option 10 supplies a 1.0 metre (3.3 feet) integrated FluidLoc cable.
• Armor Option: Option 00 specifies a standard non-armored probe cable structure.
• Moisture Sealing: Features a Viton O-ring and compression seal at the probe tip.
• Easy Routing: ClickLoc connector has a removable collar that allows the lead to be routed through small clearances.

Applications

• Steam turbine differential expansion (DE) measurements.
• Steam turbine rotor axial thrust position monitoring.
• Reciprocating compressor rod-drop style monitoring.
• Large shaft target displacement and axial position measurements.

Ordering Information

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Ensure the target size is at least 61 mm (2.4 in) flat diameter to maintain standard linear range performance.
• Thread the M30x2 probe case into the bracket and secure it using the predrilled locknut with safety wire.
• Do not exceed the maximum rated installation torque of 163 N-m (120 ft-lb). A torque of 68 N-m (50 ft-lb) is recommended.
• Connect the probe lead to the 3300 XL extension cable finger-tight, up to a maximum torque of 0.565 N-m (5 in-lb).

Compliance and Certifications

• European CE Mark: Compliant with applicable directives when used in standard installations.