Bently Nevada 3300/55-03-04-14-14-00-00-07-00 Velocity Monitor

3300 Series Vibration Monitoring Module

The 3300/55-03-04-14-14-00-00-07-00 belongs to Bently Nevada’s renowned 3300 Series platform. This velocity monitor delivers continuous vibration protection for critical rotating machinery. It provides reliable measurement and alarm functionality for overspeed and seismic monitoring applications.

Key Technical Specifications

Parameter	Specification
Model	3300/55-03-04-14-14-00-00-07-00
Series	3300 Series
Input Channels	Dual channels for velocity transducers
Power Supply	Requires +24 Vdc nominal power input
Output Signals	Provides two buffered transducer outputs
Alarm Setpoints	Includes two alarm relays and one danger relay
Frequency Response	Operates from 1 kHz to 15 kHz
Operating Temperature	Ranges from -20°C to +65°C
Dimensions	Measures approximately 241 mm x 25 mm x 152 mm
Weight	Weighs roughly 1.2 kg
Mounting	Supports standard 19-inch rack mounting
Termination	Uses screw-type terminal blocks for field wiring

Advanced Vibration Monitoring Capabilities

This monitor continuously processes input signals from two independent proximity probes. It compares each signal against user-configurable alarm and danger setpoints. The device then activates the appropriate relays when a vibration threshold exceeds its limit. Its robust design suits demanding environments like steam turbines and gas compressors.

Installation and Configuration

Installing the requires careful attention to grounding and shielding practices. You must connect the monitor to a proper +24 Vdc power source. Subsequently, you can set the alarm levels via potentiometers located on the front panel. The monitor also features a time delay function to prevent nuisance tripping during start-up.

Reliability and Maintenance

The monitor’s design incorporates high-quality components to ensure long-term operational stability. It stores configuration settings in non-volatile memory, so you do not lose them during a power cycle. Regular verification of the transducer and relay outputs will sustain measurement accuracy. You should also periodically inspect the terminal connections for any signs of corrosion or loosening.