Bently Nevada 330703-020-100-90-02-00 3300 XL 11 mm Proximity Probe

Description

Metric M14 x 1.5 threaded probe body without armor (base model 330703) with 20 mm unthreaded length (Option 020), 100 mm overall case length (Option 100), and a 9.0 m total length lead (Option 90) specifies the 330703-020-100-90-02-00 3300 XL 11 mm proximity probe configuration. This eddy-current transducer system component performs non-contact displacement measurement, supplying dynamic shaft vibration and static position data within Bently Nevada monitoring networks.

This specific metric thread configuration is designed without mechanical armor, allowing for clean routing in protected industrial conduits. Sibling variants such as the 330704 series incorporate flexible AISI 302 stainless steel armor for harsher mechanical environments, whereas the base 330701 or 330702 variants utilize 1/2-20 UNF standard threads. The 9.0 m system length (Option 90) connects directly to a matched 9.0 m Proximitor sensor without requiring an intermediary extension cable, minimizing electrical connection points in the monitoring loop.

Features

• Option 020 specifies a 20 mm unthreaded length on a metric M14 x 1.5 threaded case.
• Option 100 provides a 100 mm overall case length constructed of AISI 304 stainless steel.
• Option 90 provides a total probe length of 9.0 meters (29.5 feet) for direct system connection.
• Option 02 features a miniature coaxial ClickLoc connector with a standard triaxial FEP-insulated cable.
• Option 00 specifies that agency approvals are not required for this configuration.
• Probe tip made of polyphenylene sulfide (PPS) to withstand high-temperature fluid environments.
• Integrates a Viton O-ring to form a differential pressure seal between the probe tip and case.

Applications

• Non-contact shaft vibration and axial position measurement on industrial machinery.
• Turbine and compressor rotor position monitoring on 11 mm transducer systems.
• Monitoring critical rotating machinery in power generation and petrochemical industries.
• Steam and gas turbine casing expansion and thermal growth measurements.

Ordering Information

Technical Specifications

Installation Guidelines

When installing the M14 x 1.5 thread probe, the maximum length of thread engagement must not exceed 21 mm (1.5 times the nominal thread diameter) to prevent binding or thread damage. A class of fit matching that of the external probe thread must be maintained for all internal mounting threads.

The probe gap should be set using the recommended 2.5 mm (100 mils) target distance, which corresponds to approximately -9 Vdc to -10 Vdc on the matched Proximitor sensor output. Ensure the ClickLoc coaxial connectors are tightened finger-tight; do not exceed 0.565 N-m (5 in-lb) of connector torque. For environments with persistent moisture or exposure to liquids, ensure the connectors are protected with appropriate sealing accessories or conduit sleeves.

Compliance and Certifications

This component complies with the following directives and standards when installed as part of a complete 3300 XL 11 mm Transducer System:

• CE Mark
• EMC Directive 2014/30/EU
• EN 61000-6-2 (Industrial Immunity) and EN 61000-6-4 (Industrial Emissions)
• RoHS Directive 2011/65/EU