BENTLY 3300/16-11-01-03-00-00-01 16-Channel Monitor

The BENTLY 3300/16 is a key component of the Bently Nevada 3300 Series monitoring system, designed to provide continuous, online monitoring of critical machinery. The specific configuration 3300/16-11-01-03-00-00-01 denotes a 16-channel monitor module with particular input and output options, typically used for radial vibration and thrust position measurements.

Monitoring Capabilities

This module accepts inputs from eddy current proximity transducers (such as the 3300 XL series) and conditions the signals to produce proportional DC voltages representing dynamic vibration and static gap (position). Each of the 16 channels can be independently configured to measure radial vibration (peak-to-peak amplitude), axial thrust position, eccentricity, or other parameters like case expansion or speed. The module provides both buffered transducer outputs for diagnostic use and conditioned signal outputs to backplane connectors for integration with monitoring systems.

Alarm and Protection Functions

The 3300/16 module incorporates dual adjustable alarm setpoints per channel: Alert and Danger. Each setpoint can be programmed for trip multiplication (permissive start) and time delays to avoid nuisance trips. When a measurement exceeds a setpoint, the module triggers front-panel LEDs and sends a signal to the associated relay module for annunciation and machinery shutdown. The module also features OK/Not OK indicators for transducer and system integrity.

Configuration and Options

The part number suffix -11-01-03-00-00-01 specifies the exact build: likely the type of input filters, output ranges, and approval options. Typically, the module supports standard frequency response ranges (e.g., 0–10 kHz) and output scaling (e.g., 200 mV/mil). It is designed to be hot-swappable, allowing replacement without powering down the entire rack. Configuration is performed via jumpers and DIP switches on the module's circuit board.

Applications

This monitor is extensively used in refineries, power plants, and other industrial facilities to protect turbomachinery such as steam turbines, gas turbines, compressors, and pumps. By providing real-time data and alarms, it enables operators to detect developing faults like unbalance, misalignment, bearing wear, or shaft cracks before they lead to catastrophic failure.

Reliability and Compliance

The 3300 series is known for its ruggedness and adherence to API 670 standards for machinery protection systems. The 3300/16 module offers high reliability with redundant power supply options and robust isolation. Its proven track record in critical service makes it a preferred choice for plant reliability engineers seeking to maximize uptime and safety.