Product Overview

The Bently Nevada 3300/16-14-01-00-00-00-01 is a high-integrity, two-channel machinery protection module designed for continuous surveillance of shaft radial vibration. Part of the legendary 3300 series, this monitor interprets signals from non-contacting proximity transducers to measure the dynamic displacement of rotating shafts relative to their bearing housings. By providing real-time, hardware-based monitoring of peak-to-peak vibration, it serves as a critical fail-safe layer in Turbine Supervisory Instrumentation (TSI) systems. This module is essential for the early detection of mechanical anomalies such as unbalance, shaft misalignment, and oil whirl, allowing for automated machinery trips before catastrophic damage occurs.

Hardware Parameters and Key Technical Characteristics

The 3300/16 series is engineered with precision analog signal conditioning to provide stable measurements in harsh industrial environments with high electromagnetic interference.

• Model Identification 3300/16-14-01-00-00-00-01

• Measurement Type Dual-channel Radial Vibration (Peak-to-Peak)

• Full-Scale Range 0 to 4.0 mils (Option -14) or equivalent metric calibration

• Transducer Compatibility Engineered for use with 3300 and 3300 XL 8mm Proximity Transducer Systems

• Analog Outputs Independent 4-20 mA DC recorder outputs for each monitored channel

• Diagnostic Interface Two front-panel BNC connectors providing buffered raw dynamic signals for spectral analysis

• Local Monitoring Integrated digital LCD display for real-time value tracking and status annunciation

• Alarm Logic Dual-level Alert and Danger relays with configurable setpoints and time delays

• Agency Compliance CSA/NRTL/C (Class 1, Division 2) for hazardous area operation (Option -01)

• Integrity Monitoring Built-in "OK" circuit continuously audits the sensor loop and internal electronics

• Physical Weight 1.00 kg

• Module Dimensions 15 cm x 10 cm x 5 cm

Industrial Applications and Operational Use Cases

This dual-channel monitor is widely utilized across the energy and process industries to ensure the reliability of high-speed rotating equipment.

• Main Steam and Gas Turbines Deploying X-Y orthogonal probe sets to track shaft centerline motion and orbital dynamics.

• Process Gas Compressors Providing immediate machine protection during vibration spikes or high-load surge conditions in petrochemical facilities.

• Large Industrial Motors Surveillance of shaft-to-bearing clearances in high-horsepower motors driving pumps and blowers.

• Boiler Feed Pumps Real-time monitoring of pump shaft stability to prevent internal contact and mechanical seal failure in power plants.

• Hydro-Generator Units Tracking low-frequency vibration and runout on large vertical or horizontal hydro turbines.

By utilizing the raw buffered outputs, maintenance personnel can transition from reactive repairs to a data-driven predictive maintenance strategy, using portable analyzers to identify specific fault frequencies like blade pass or bearing cage defects.