Bently Nevada 330909-00-80-10-02-05 3300 NSv Proximity Probe

Product Overview

The 330909-00-80-10-02-05 is a high-precision 3300 NSv Proximity Probe engineered for critical machinery protection in space-constrained or chemically aggressive environments. This probe is specifically designed for process compressors and small-bore centrifugal pumps frequently found in oil refineries and chemical processing plants. Featuring advanced chemical resistance and a 3/8-24 UNF threaded case with integrated stainless steel armor, the 330909-00-80-10-02-05 provides superior durability compared to legacy 3300 RAM series sensors. It utilizes Bently Nevada patented technologies, including TipLoc molding for robust tip-to-body bonding and CableLoc for high pull-strength cable attachment. By providing reliable eddy-current displacement measurements, this transducer system is vital for monitoring shaft vibration and position, effectively preventing catastrophic failures and minimizing unplanned facility downtime.

Suffix Breakdown

The alphanumeric configuration for the 330909-00-80-10-02-05 defines the specific mechanical and certification parameters for field integration:

• 00 (Unthreaded Length): 0.0 inch unthreaded length; fully threaded case.

• 80 (Overall Case Length): 8.0 inch overall case length, providing sufficient reach for deep-well machine casing penetrations.

• 10 (Total Length): 1.0 meter (39 inch) total lead length.

• 02 (Connector and Cable): Miniature coaxial ClickLoc connector with standard cable and integrated stainless steel armor for physical protection.

• 05 (Agency Approval): Multiple global approvals including FCC, ATEX, IECEx, and CSA for use in intrinsically safe hazardous areas.

Technical Specifications

Machinery Protection FAQs

Is the 3300 NSv probe backward compatible with older 3300 RAM systems?

Yes, the 3300 NSv probe and extension cables are mechanically and electrically interchangeable with the previous 3300 RAM series. However, the NSv series offers significantly better chemical resistance for process gas applications.

What is the "Narrow Side View" advantage?

The "NSv" designation indicates a tighter magnetic field pattern. This allows the probe to be installed in tighter spaces with less interference from surrounding metal (side-view) compared to standard 3000-series probes, ensuring a more accurate vibration signal in compact machines.

Why is it important to avoid sustained temperatures below -34 deg C?

While the probe can operate at -52 deg C, prolonged exposure to temperatures below -34 deg C (-30 deg F) can cause the internal pressure seal to become brittle. This may lead to premature seal failure and potential process media leakage into the housing.

Field Engineering and Installation Directives

• Mounting and Thread Engagement: For the 3/8-24 UNF threaded case, ensure the maximum thread engagement does not exceed 0.563 inches to prevent mechanical binding. Use a calibrated torque wrench for the final locknut set, ensuring the probe remains stationary during high-vibration events.

• Connector Integrity (ClickLoc): All ClickLoc connectors are gold-plated brass. During installation, ensure the connectors "click" into a locked position. It is highly recommended to use connector protectors or silicone tape to prevent the ingress of turbine oil or moisture, which can bridge the coaxial signal and cause "Not OK" status at the monitor.

• Armor Handling: The integrated stainless steel armor protects the coaxial lead from mechanical abrasion. However, maintain a minimum bend radius of 25 mm (1.0 inch) to avoid damaging the internal miniature coaxial conductor. Do not allow the armor to come into direct contact with high-voltage lines.

• Gap Voltage Verification: During commissioning, set the probe gap to the standard 1.0 mm (40 mils), which corresponds to approximately -10 VDC on a standard Proximitor output when using an AISI 4140 steel target. Always verify the target material before final gapping, as non-4140 materials require specialized Proximitor calibration.