Bently Nevada 330709-000-050-10-02-00 3300 XL 11mm Proximity Probes

The Bently Nevada 330709-000-050-10-02-00, also cataloged as the 3300 XL 11mm Proximity Probes, operates as a dedicated hardware component for eddy-current proximity sensing within 3500 Machinery Protection System platforms.

Model Suffix Breakdown

• 330709: 3300 XL 11 mm Probe with M16 x 1.5 thread, without armor

• 000: 0 mm minimum unthreaded length

• 050: 50 mm minimum overall case length

• 10: 1.0 meter (3.3 feet) total cable length

• 02: Miniature coaxial ClickLoc connector, standard cable

• 00: Agency approval not required

Hardware Parameters

Eddy-Current Probe Calibration and Rotor Dynamics

The probe operates on the principle of eddy-current probe scaling, producing an output scale factor of 3.94 V/mm (100 mV/mil) when paired with a matching 3300 XL Proximitor. Accurate gap voltage validation (-10 VDC targets) is necessary to center the transducer within its linear range. This alignment permits precise observation of rotor dynamics, tracking both static position changes and high-frequency dynamic vibrations while internal shield designs maintain cross-talk suppression between adjacent probe installations.

Package Contents

• 1 Bently Nevada 330709-000-050-10-02-00 Proximity Probe

• 1 Coaxial Connector Protective Cap

Field Layout and Mechanical Installation Guidelines

Probe Mounting Orientation

• Thread the M16 x 1.5 probe body into the mounting bracket or machine casing using a bracket configuration.

• Adjust the physical gap while checking the target gap voltage until a stable -10 VDC measurement is established at the monitor terminal.

Cable Connection and Torquing

• For XL-to-XL coaxial connections, tighten the ClickLoc connectors finger-tight until an audible and tactile click is registered.

• For mixed connections with non-XL stainless steel components, tighten finger-tight, then apply an additional 1/8 turn using pliers. Do not exceed 0.565 N-m (5 in-lb) of torque.

Transducer Technical FAQ

• What is the nominal output scale factor of this proximity probe?

  The sensor provides a calibrated scale factor of 3.94 V/mm (100 mV/mil) when properly matched.

• What is the unthreaded length parameter for this specific part number?

  The 000 modification prefix specifies that the probe casing has an unthreaded length of 0 mm.

• What target gap voltage is recommended during the physical installation phase?

  An electrical gap voltage validation target of -10 VDC is recommended to set the nominal linear range midpoint.

• Can this probe be connected directly to a 7200 series Proximitor?

  No, upgrading from older 7200 systems requires complete replacement with matching 3300 XL components.

• What is the mechanical torque limit for the coaxial connector interfaces?

  The maximum torque threshold is strictly capped at 0.565 N-m (5 in-lb) to prevent damage to the internal contact gold plating.

• Does this specific catalog configuration include an armor sheath over the cable?

  No, the 330709 base code specifies a standard coaxial cable jacket layout without a protective armor wrap.

• What total cable length is integrated into this hardware option?

  The option code 10 designates a fixed 1.0 meter (3.3 feet) cable assembly length.

• Is an updated version of the software required for 3500 rack integration?

  Yes, configuration software showing the 3300 XL 11mm system as a valid option must be executed.