Bently Nevada 330980-70-CN NSv Proximitor Sensor

Description

Engineered for tight-clearance industrial machinery monitoring, the 330980-70-CN is the signal conditioning core of the Bently Nevada 3300 NSv (Narrow System vibration) Proximity Transducer System. This specialized sensor is designed to interface with 3300 NSv proximity probes and extension cables, providing accurate dynamic and static shaft measurements in setups with narrow target profiles or limited spatial access.

The 330980-70-CN Proximitor Sensor processes the high-frequency RF signal from the probe to generate a continuous voltage output directly proportional to the physical gap between the probe tip and the observed conductive target. This output signal is seamlessly compatible with Bently Nevada 3500 and 3300 monitoring systems, ensuring reliable integration into plant-wide asset protection and machinery diagnostic architectures.

Features

• Optimized for small-diameter shafts and narrow-profile installation environments.
• Provides highly linear static (gap) and dynamic (vibration) displacement measurements.
• Excellent resistance to radio frequency interference (RFI) and electromagnetic interference (EMI).
• Coaxial connector design ensures robust and reliable signal path connectivity.
• Rugged physical packaging designed to withstand harsh industrial environments.

Applications

• Aeroderivative gas turbines
• Centrifugal and axial air compressors
• Small steam turbines and high-speed pumps
• Gearboxes and auxiliary machinery with restricted probe-mounting space

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Grounding: Ensure the Proximitor Sensor is mounted on a clean, dry DIN rail or mounting plate. The sensor housing must be electrically isolated from the machine ground to prevent ground loops.
• Cable Protection: All coaxial connections should be wrapped with connector silicone self-fusing tape to prevent fluid intrusion and physical damage.
• Wiring: Route field wiring from the Proximitor to the monitor rack using shielded twisted-pair cables. Ensure the cable shield is grounded only at the monitoring rack end.
• Clearance: Maintain the specified minimum mechanical clearance around the probe tip to prevent cross-talk and side-viewing interference.