The Bently Nevada 330905-00-13-10-12-CN, also cataloged as the 330905 Proximity Probe, operates as a dedicated hardware component for eddy-current displacement monitoring within Turbine Supervisory Instrumentation (TSI) networks. The device registers small-bore rotor target movements, delivering high-resolution proximity metrics to external monitoring modules.

Option Code Parameterization

• Base Model (330905): 3300 NSv Proximity Probe, M10 x 1 thread, unarmored.

• Unthreaded Length Option (00): 0 mm.

• Overall Case Length Option (13): 130 mm.

• Total Length Option (10): 1.0 meter (39 inches).

• Connector and Cable-Type Option (12): Miniature coaxial ClickLoc connector, FluidLoc cable.

• Country Specific Suffix (CN): Region-specific distribution parameter.

Physical and Electrical Specifications

Signal Scaling and Cross-Talk Suppression

The 3300 NSv system features specialized eddy-current probe scaling optimized for small target diameters and restricted installation spaces where standard 8 mm probes cannot operate without side-viewing interference. Due to the tighter magnetic field geometry, gap voltage validation targets specific nominal voltage offsets to position the target within the linear measuring zone. Precise mechanical mounting tolerances are strictly enforced to manage cross-talk suppression and eliminate electrical signal distortion when multiple probe tips are arrayed on a single rotor dynamics bearing plane.

Technical Query Resolution

Q: What specific advantage does the FluidLoc cable configuration provide over standard coaxial cables?

A: The FluidLoc cable configuration utilizes an internal sealing matrix that blocks oil, water, or other process fluids from migrating through the internal strands of the cable sheath into the clean external junction box area if the probe tip becomes structurally compromised.

Q: Can this 1.0 meter NSv probe be extended with a standard 3300 XL 8 mm extension cable?

A: No. The 3300 NSv probe has different electrical inductance and capacitance properties than the 3300 XL 8 mm probe. It must be paired exclusively with 3300 NSv specific extension cables and 3300 NSv Proximitor Sensors to maintain correct system calibration.

Q: Is hot-swapping or live disconnection of the ClickLoc interface safe for the control system?

A: Yes, disconnecting the passive probe element while the Proximitor loop is energized will not damage the industrial instrumentation. However, it interrupts the sensor loop current, which immediately forces the companion TSI monitor channel into a NOT OK or transducer fault state.

Mechanical Alignment and Guarding Directives

• Thread Seating: Ensure a minimum of 5 full threads of mechanical engagement inside the mounting collar to stabilize the extended 130 mm case against high-frequency vibration profiles.

• Tightening Limits: Use a calibrated torque tool to secure the case locknut to a maximum setting of 7.5 N-m (66 in-lb). Exceeding this mechanical limit risks buckling the inner coil assembly or crushing the barrel.

• Electrical Shield Isolation: Slide the included insulation sleeve completely over the miniature coaxial ClickLoc junction. The signal shield must remain electrically isolated from the machine casing to mitigate ground loop noise injection.

• Routing Constraints: Avoid laying the unarmored FluidLoc cable across sharp metal edges or high-temperature hot spots. Maintain a minimum physical bend radius of 25.4 mm (1.0 inch) throughout the wiring run.

Hardware Kit Inclusions

• Package Components: One 330905-00-13-10-12-CN unarmored proximity probe element, one integrated M10 locknut, and one coaxial junction insulation boot.

• Complementary Hardware: Matching Proximitor sensors, separate extension cables, or special non-conductive mounting brackets are not part of this kit.

Shipping and Packaging Standards

• Dispatch Timeline: 2-7 days when payment finish, routed through high-priority air freight services via DHL, FEDEX, or UPS.

• Packaging Integrity: Packed inside specialized anti-static industrial packaging to neutralize static accumulation, combined with fitted inner foam inserts to protect the long 130 mm case assembly from bending loads during transit.