The Bently Nevada 3300/55 Dual Velocity Monitor module is a critical component of the 3300 machinery protection system, engineered specifically for the continuous monitoring of casing vibration velocity. By utilizing Velomitor piezo-velocity sensors, this unit provides two independent channels of vibration data, ensuring reliable detection of mechanical issues in rotating equipment such as large compressors, turbines, pumps, and motors. The module continuously processes input signals against pre-configured alarm setpoints to trigger protective actions, maintaining machine integrity and operational safety.
Features
Dual-channel architecture for independent velocity monitoring.
Optimized for integration with Velomitor piezo-velocity sensor interfaces.
Integrated alarm processing with Alert and Danger setpoint capabilities.
Proportional 4-20 mA output for seamless data transmission to external control or monitoring systems.
Designed for high-reliability operation within the standard 3300 rack-based environment.
Applications
This monitor is widely used in heavy industrial environments, particularly in the oil and gas, power generation, and petrochemical sectors. It is essential for the protection of critical rotating machinery where casing vibration velocity is a key indicator of mechanical health and potential failure modes.
Technical Specifications
Model
3300/55-01-05-02-02-00-00-09-00
Measurement Channels
Dual Velocity
Sensor Compatibility
Velomitor Piezo-Velocity
Alarm Outputs
Dual Relay (Alert/Danger)
Analog Output
4-20 mA Proportional
Operating Temperature
0 degC to +60 degC
Power Consumption
1.5 W (typical)
Installation Guidelines
Ensure the 3300 rack is powered down before inserting or removing the module to prevent electrical damage.
Verify that the module is correctly seated in the assigned rack slot to ensure proper backplane communication.
Use shielded cabling for all transducer inputs to minimize electromagnetic interference (EMI) in high-noise industrial environments.
Maintain proper grounding practices for the 3300 rack system to ensure signal integrity and safety compliance.
Ensure that the operating environment remains within the specified temperature range of 0 degC to +60 degC to prevent performance degradation.
FAQ
What is the primary function of the 3300/55 module?
The 3300/55 is a dual-channel monitor designed to measure and evaluate casing vibration velocity using piezo-velocity transducers, providing alarm logic for machinery protection.
Does this module support external alarm integration?
Yes, this specific configuration includes dual relay outputs that can be wired to external logic solvers, PLCs, or emergency shutdown systems for alarm and trip functions.
Is this module compatible with existing 3300 rack systems?
Yes, the 3300/55 is designed as a standard module for the Bently Nevada 3300 series rack, allowing for modular expansion and replacement in existing machinery protection installations.
