Configured for high-sensitivity displacement measurements in constrained machinery environments, the Bently Nevada 330904-05-14-05-02-05 (330904 Proximity Probes) provides direct physical/electrical execution.

Hardware Specifications

Eddy-Current Probe Scaling and Signal Integrity

The 3300 NSv transducer system utilizes refined eddy-current probe scaling specifically adapted for small-target vibration monitoring where standard 8 mm probes lack sufficient sensitivity. The system requires accurate gap voltage validation, with a nominal target of -10 VDC at the Proximitor output for a standard installation gap. This setup ensures the signal remains within the linear range of the transducer. Proper implementation is necessary for effective cross-talk suppression in multi-channel bearing housings, ensuring that rotor dynamics data—such as radial shaft vibration and thrust position—is captured without interference from adjacent high-frequency inductive fields.

Frequently Asked Questions

Q: Is the 330904 NSv probe compatible with standard 3300 XL Proximitor sensors?

A: No. The 3300 NSv system requires a dedicated 3300 NSv Proximitor. The electrical tuning and probe scaling parameters are specific to the NSv series and are not interchangeable with XL series hardware.

Q: What is the purpose of the 1/4-28 mounting thread in this application?

A: The smaller thread profile allows for installation in confined housing spaces where standard 3/8-24 or M10 mounting threads are physically incompatible or restricted.

Q: Does the integral coaxial cable require external shielding?

A: The integral coaxial cable is shielded. However, to maintain signal integrity, it should be routed away from high-current power cables and grounded strictly according to the installation manual to prevent noise induction.

Field Installation Guidelines

• Verify the target machine mounting hole is tapped for 1/4-28 UNF-2A threads.
• Manually thread the probe into the assembly, ensuring the tip does not strike the shaft during insertion.
• Set the physical gap using a feeler gauge to meet the requirements of the specific monitoring loop.
• Confirm gap voltage validation at the Proximitor output reaches the -10 VDC setpoint.
• Secure the probe body with the provided locknut, applying appropriate mechanical torque to prevent loosening under operational vibration.
• Ensure all cable connections are seated firmly and the ClickLoc connector is fully engaged to maintain RF continuity.

Ordering Info

• 330904-05-14-05-02-05 Proximity Probe unit
• Integrated coaxial cable and connector
• Threaded installation nuts

Delivery Information

Delivery time: 2-7 days when payment finish, dispatched via DHL, FEDEX, or UPS. The component is enclosed in anti-static industrial packaging to ensure electrical safety and protection against moisture or debris during global shipping.