Bently Nevada 330500-00-20 Velomitor Piezo-velocity Sensor

Description

The 330500-00-20 is a Bently Nevada Velomitor Piezo-velocity Sensor configuration featuring Option 00 (no mounting adapter) and the specified Option 20 configuration. This solid-state piezoelectric accelerometer is engineered to measure absolute casing, bearing housing, and structural vibration. By incorporating integrated electronics and utilizing a solid-state design without moving parts, the 330500 series eliminates mechanical degradation and wear commonly found in older velocity transducer technologies.

This sensor is suitable for vertical, horizontal, or angled mounting orientations. The 330500 provides a consistent velocity output, making it effective for identifying machine malfunctions such as unbalance and misalignment that transmit significant vibration to the machine casing. Note that this specific unit is shipped without a factory-installed mounting adapter (Option 00), providing flexibility for direct mounting or integration into existing machine interfaces.

Features

• Solid-state piezoelectric design with no moving parts to prevent mechanical wear
• Compatible with horizontal, vertical, and angular mounting orientations
• Housing constructed from 316L stainless steel for durability in industrial environments
• Hermetically-sealed connector shell (2-pin MIL-C-5015)
• Provides absolute vibration measurement for casing and bearing housing protection

Applications

• Casing and structural vibration monitoring
• Bearing housing vibration measurements
• Rotating machinery protection for pumps, fans, and compressors
• General industrial machine vibration diagnostics

Ordering Information

Technical Specifications

Installation Guidelines

Ensure the sensor is installed on a rigid part of the bearing housing or machine casing to maintain accurate frequency and amplitude response. Improper installation or loose mounting may generate false signals that do not represent actual machine vibration. The device is hermetically sealed, but care should be taken to ensure the 2-pin connector is properly seated and protected from environmental contaminants if installed in harsh areas. Refer to the standard 330500 instruction manuals for mounting torque and cabling practices.

Compliance and Certifications

The 330500 Velomitor Piezo-velocity Sensor complies with EMC Directive 2014/30/EU and RoHS Directive 2011/65/EU. The product is rated for maritime applications, including ABS Marine Vessels, Offshore Units, and Structures. For detailed hazardous area approval status, consult the Bently Nevada Approvals Quick Reference Guide (108M1756).