Bently Nevada 330980-70-00 3300 XL NSv Proximitor Sensor

Description

The Bently Nevada 330980-70-00 is a high-performance proximity sensor designed as a core component of the 3300 XL NSv Proximity Transducer System. This sensor is specifically engineered for critical machinery applications with tight installation constraints , including centrifugal air compressors, refrigeration compressors, and process gas compressors. The 330980-70-00 accepts input from a non-contacting 3300 RAM or 3300 NSv proximity probe and an associated extension cable , generating a continuous analog voltage output proportional to the gap distance between the probe tip and the target. With an Average Scale Factor (ASF) of 7.87 V/mm (200 mV/mil) , it provides accurate data for radial vibration, axial position, tachometer speed, and phase reference measurements on fluid-filmed bearing machines. Its thin, space-saving mechanical housing accommodates high-density multi-channel monitoring system layouts with complete RFI/EMI protection.

Features

• Seamless system compatibility, accepting one non-contacting 3300 RAM or 3300 NSv proximity probe and extension cable.
• High-density panel mount base designed for secure integration into standard monitoring configurations.
• Advanced RFI/EMI immunity ensuring full European CE mark compliance and preventing radio frequency interference without dedicated shielding enclosures.
• SpringLoc terminal strips requiring no special tools, providing reliable and gas-tight field wiring connections.
• Robust internal circuitry protected against electrostatic discharge (ESD) during handling and operation.
• Default factory calibration to AISI 4140 steel, maintaining high accuracy and linear interchangeability.

Applications

• Radial vibration and radial position monitoring on centrifugal and process gas compressors.
• Axial (thrust) position measurements in tight-space machinery installations.
• Tachometer, zero-speed, and Keyphasor phase reference signal generation.
• Upgrades and retrofits for legacy 3300 RAM, 3000-series, and 7000-series 190 transducer installations.

Ordering Information

Technical Specifications

Connections/Interfaces

Installation Guidelines

• Mounting Configuration: This specific model (-70) is supplied with a panel-mount base configuration. Secure the housing flat onto the structural panel layout using recommended mounting screws.
• Field Wiring Connection: Utilize the tool-less SpringLoc terminal strips by inserting stripped conductor leads (16 to 24 AWG) directly into the clamping mechanism to secure field wiring.
• Cable Matching: Ensure that the combined physical length of the selected proximity probe and extension cable precisely equals the 7.0-meter system tuning length of the sensor.
• Electrostatic Discharge (ESD): Apply proper ESD ground straps and precautions when touching the terminals or coaxial input port during installation to prevent inner circuit component degradation.