330103-00-21-10-11-CN Bently Nevada 3300 XL 8 mm Proximity Probe

With the Bently Nevada 330103-00-21-10-11-CN, installation usually starts by threading the fully threaded 210 mm body into the machine housing bracket. No unthreaded section, so adjustment is fairly flexible during setup.

Technicians monitor target gap voltage while positioning, aiming close to -9 Vdc, which equals about 1.27 mm (50 mils) from an AISI 4140 steel target surface. Small adjustments are typically made until the signal stabilizes.

The key point is the FluidLoc cable jacket system. It helps stop oil or process fluids from migrating through the internal coaxial line toward the terminal junction box.

In fluid-film bearing setups, this kind of sealing behavior is often what keeps the signal path stable over long operation cycles.

This model is an unarmored proximity probe, so routing matters. The 1.0-meter trailing cable is normally placed inside a protective runway or conduit, especially in areas with vibration, debris, or mechanical contact risk.

Keep the bend radius within 25.4 mm (1.0 inch). Anything tighter usually shortens cable life in real operating conditions.

It depends on loop design. With a 1.0-meter integrated probe cable, direct connection to a Proximitor sensor is possible in compact setups.

For larger systems like 5-meter or 9-meter overall loop architecture, an extension cable is normally required. A common match is pairing it with an 8.0-meter extension cable (e.g., 330130-080) to maintain correct electrical length balance.

The ClickLoc locking mechanism uses a gold-plated coaxial termination designed for tool-free connection. Just finger-tight until it clicks.

Once locked, the connection stays stable even under continuous industrial vibrations, which helps reduce reconnection time during maintenance shutdowns.