Bently Nevada 330901-00-32-10-02-05 3300 NSv Proximity Probe

The Bently Nevada 330901-00-32-10-02-05, also cataloged as the 330901 3300 NSv Proximity Probe, operates as a dedicated hardware component for non-contact shaft vibration and displacement measurement within Bently Nevada 3300 NSv proximity transducer systems. The probe utilizes eddy-current sensing technology to monitor conductive target movement in locations where installation space is limited and standard probe geometries cannot be accommodated.

Suffix Breakdown & Model Matrix

• Armor Option: 00 = Unarmored

• Probe Cable Length Option: 32 = 3.2 m probe cable configuration

• Extension Cable Length Option: 10 = 1.0 m extension cable

• Agency Approval Option: 02 = Multiple agency approvals / hazardous area configuration

• Country/Mounting Option: 05 = Standard industrial configuration

Hardware Specifications

Eddy-Current Probe Scaling and Rotor Dynamics Analysis

The 3300 NSv probe is designed for machinery installations where available mounting space restricts the use of conventional proximity probe geometries. The compact probe assembly supports side-view mounting arrangements and applications with limited radial clearance.

The transducer system utilizes a scale factor of 7.87 V/mm (200 mV/mil), allowing shaft displacement and vibration measurements to be converted into proportional electrical signals for monitoring and protection functions. Accurate measurement performance depends on the use of a matched probe, extension cable, and Proximitor sensor assembly.

The non-contact sensing principle enables continuous observation of rotor dynamic behavior, including shaft vibration, displacement, and relative motion, without physical interaction between the probe tip and rotating equipment.

Frequently Asked Questions

Q: Can this probe be used without an extension cable and Proximitor sensor?
A: No. The probe is designed as part of a complete 3300 NSv transducer system consisting of a probe, extension cable, and compatible Proximitor sensor.

Q: What measurement sensitivity does the probe provide?
A: The specified scale factor is 7.87 V/mm, equivalent to 200 mV/mil.

Q: Is the probe suitable for restricted mounting locations?
A: Yes. The NSv design is intended for applications where mechanical clearances limit the installation of larger proximity probes.

Field Installation Guidelines

• Verify compatibility of the probe, extension cable, and Proximitor sensor before installation.

• Confirm the mounting arrangement supports the 1/4-28 UNF threaded probe body.

• Route transducer cables separately from power distribution and motor control wiring.

• Avoid excessive bending or mechanical stress on probe and extension cable assemblies.

• Ensure the probe tip is correctly positioned within the calibrated operating range.

• Apply shielding and grounding practices in accordance with plant instrumentation standards.

• Validate gap voltage and channel response prior to placing monitored equipment into operation