Description

The Bently Nevada 3300/20 Dual Thrust Monitor is a specialized monitoring module designed for the 3300 series system. It provides continuous monitoring of axial shaft position (thrust) in rotating machinery, ensuring critical protection by comparing the measured position against user-programmed alarm setpoints. This monitor is engineered to process signals from proximity transducers to detect excessive axial movement, which is essential for preventing catastrophic equipment failure.

Features

• Dual-channel monitoring capability for redundancy or multi-point axial measurement.
• Compatible with 7200 series proximity transducer systems.
• Integrated 4-20 mA recorder output for external data logging and trending.
• Configurable alarm setpoints for Danger and Alert conditions.
• Designed for integration into the standard Bently Nevada 3300 rack system.

Technical Specifications

Installation Guidelines

• Ensure the 3300 rack is properly grounded according to site electrical standards to prevent noise interference.
• Always power down the rack before inserting or removing the monitor module to prevent electrical arcing or damage to the backplane connectors.
• Use shielded twisted-pair cabling for transducer inputs to minimize EMI/RFI susceptibility.
• Maintain adequate ventilation around the 3300 rack to ensure ambient temperatures remain within the 0 to +65 deg C operating range.
• Verify that the transducer power supply settings match the requirements of the installed proximity probes.

FAQ

What is the primary function of the 3300/20 monitor?

The 3300/20 is designed to monitor the axial position of a machine shaft, providing critical protection by triggering alarms or trips if the shaft position exceeds safe operating limits.

Is this module compatible with other Bently Nevada systems?

This module is specifically designed for the Bently Nevada 3300 series monitoring system. It is not directly interchangeable with 3500 series modules.

What does the 4-20 mA output provide?

The 4-20 mA output provides a proportional signal representing the measured thrust position, which can be sent to a PLC, DCS, or external data acquisition system for remote monitoring.