Description

Bently Nevada 330901-00-16-05-02-CN 3300 NSv Proximity Probe

The Bently Nevada 330901-00-16-05-02-CN, also cataloged as the 330901 3300 NSv Proximity Probe, operates as a dedicated eddy-current measurement component for shaft displacement monitoring within the 3300 NSv Proximity Transducer System.

Hardware Specifications

Parameter	Specification
Model	330901-00-16-05-02-CN
Brand	Bently Nevada
Product Series	3300 NSv Proximity Probe
Origin	USA
Weight	0.14 kg
Dimensions	1/4-28 UNF threaded probe, 1.6 inch overall case length, 0.5 meter integrated cable
Operating Temp	-52 deg C to +177 deg C
Power Consumption	Supplied by 3300 XL NSv Proximitor Sensor, -17.5 VDC to -26 VDC system supply
Measurement Principle	Eddy-current non-contact displacement measurement
Linear Range	1.5 mm (60 mils)
Average Scale Factor	7.87 V/mm (200 mV/mil) nominal
Frequency Response	0 to 10 kHz
Output Resistance	50 Ohm
Thread Type	1/4-28 UNF unarmored design
Probe Tip Material	Polyphenylene Sulfide (PPS)
Probe Case Material	AISI 304 Stainless Steel
Cable Type	75 Ohm coaxial cable with FEP insulation
Connector Type	Miniature gold-plated brass ClickLoc coaxial connector
Maximum Thread Torque	7.3 N m maximum

Eddy-Current Scaling and Rotor Dynamics Monitoring

The 330901 series probe provides calibrated eddy-current displacement output through the 3300 XL NSv Proximitor Sensor. The system maintains a nominal scale factor of 7.87 V/mm, which allows the monitoring system to convert probe voltage variation into shaft position data.

Furthermore, the probe supports rotor dynamics analysis by measuring shaft movement without physical contact. The narrow side-view construction reduces installation interference and supports applications where standard radial probes cannot achieve required clearance.

The NSv system requires matched probe, extension cable, and Proximitor Sensor combinations. This configuration maintains gap voltage validation, signal linearity, and measurement accuracy during machinery operation. Proper installation normally verifies the operating gap voltage near the -10 VDC target condition.

Frequently Asked Questions

Q: Can the 330901-00-16-05-02-CN probe operate with standard 3300 XL 8 mm Proximitor Sensors?
A: No. The 330901 NSv probe requires a compatible 3300 XL NSv Proximitor Sensor and NSv extension cable configuration. Standard 3300 XL 8 mm components are not interchangeable.

Q: What type of connector and cable assembly does this probe use?
A: This model uses a miniature ClickLoc coaxial connector with a 0.5 meter FEP insulated coaxial cable.

Q: How does the probe measure shaft displacement?
A: The probe generates an eddy-current field at the probe tip. Changes in the distance between the probe and conductive shaft surface modify the electrical output signal, which the Proximitor Sensor converts into displacement data.

Field Installation Guidelines

Install the probe with the correct 1/4-28 UNF mounting hardware and maintain the specified mechanical clearance between the probe tip and the target surface.

Route the coaxial cable away from high-current conductors, ignition sources, and strong electromagnetic interference areas. Avoid sharp cable bends that may affect cable insulation or signal stability.

Connect the ClickLoc connector securely and verify that the probe, extension cable, and Proximitor Sensor form a matched calibrated system.

During commissioning, measure the probe gap voltage and confirm the operating condition near the required -10 VDC target range. Check signal stability while rotating equipment operates under normal conditions.

Specifications

• Brand: Bently Nevada

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems