The Bently Nevada 330500-01-00 Velomitor Piezo-velocity Sensor is a robust industrial vibration transducer designed for measuring absolute casing and bearing housing vibration velocity in rotating machinery. By utilizing specialized piezoelectric accelerometer technology with integrated solid-state electronics, this sensor provides a stable, reliable output for condition monitoring systems across a wide frequency range.

Features

• Solid-state design with no moving parts, eliminating mechanical degradation and wear.
• Integrated electronics allow for simplified installation and signal conditioning.
• Flexible mounting orientation; can be installed vertically, horizontally, or at any angle.
• Rugged construction suitable for harsh industrial environments.
• Provides a stable indicator of mechanical condition for machinery with rolling-element bearings.

Applications

• Centrifugal and axial compressors for detecting structural strain and process-induced instabilities.
• Industrial pumps for monitoring bearing housings for cavitation, imbalance, or hydraulic forces.
• Electric motors for monitoring mechanical health and fan degradation on stator casings.
• Gas and steam turbines for sensing casing vibration during start-up and transient cycles.
• Fans and blowers for measuring unbalance or aerodynamic loading near bearing support housings.

Technical Specifications

Installation Guidelines

• Ensure the mounting surface is flat and clean to maintain accurate vibration transmission.
• Use a torque wrench to tighten the sensor to the recommended maximum of 46 kg-cm (40 in-lb).
• Pin A is the positive terminal (signal/power); Pin B is the negative terminal (common/ground).
• Use shielded, twisted-pair interconnect cables (e.g., Bently Nevada 330533 series) to minimize electromagnetic interference.
• Ensure the monitor or I/O module is configured for a positive common system.
• Always power down the monitoring system before connecting or disconnecting the sensor to prevent electrical damage.

FAQ

What is the 330500-01-00?

The 330500-01-00 is a Velomitor Piezo-velocity sensor, which acts as an integrating accelerometer to provide velocity-based vibration data for machinery protection and monitoring.

Does this sensor require external power?

Yes, as an active sensor with integrated electronics, it requires a DC power source, typically ranging from -12 to -24 VDC, to operate the internal circuitry.

Can this sensor be used in hazardous locations?

The -00 suffix indicates this specific unit does not carry hazardous area agency approvals. Please verify your site requirements before installation in explosive atmospheres.