Product Overview

The 3300/16-13-01-01-00-01-02 is a precision-engineered two-channel monitoring instrument within the Bently Nevada 3300 Series machinery protection framework. This module is specifically designed to interpret signals from non-contacting displacement transducers, providing continuous surveillance of radial shaft vibration. By calculating peak-to-peak displacement, it offers a real-time assessment of the clearance between the rotating shaft and its bearing housing. This hardware-based monitoring solution acts as a fail-safe defensive layer, identifying mechanical instabilities like shaft misalignment, unbalance, and oil whirl. It is an essential component for Turbine Supervisory Instrumentation (TSI), capable of triggering automated emergency shutdowns to prevent catastrophic mechanical failure in high-value rotating assets.

Hardware Infrastructure and Technical Specifications

This configuration of the 3300/16 series is optimized for high-resolution measurement ranges and features robust noise-rejection circuitry for reliable performance in electrically dense industrial environments.

• Identified Model: 3300/16-13-01-01-00-01-02

• Measurement Function: Dual-channel Radial Displacement (Peak-to-Peak)

• Operating Range: 0 to 4.0 mils (High-resolution scaling)

• Sensor Interface: Supports 3300 and 3300 XL 8mm Proximity Transducer Systems

• Data Outputs: Dual independent 4-20 mA DC analog signals proportional to vibration

• Diagnostic Access: Front-panel coaxial BNC ports providing buffered raw signals

• Visual Display: Integrated digital LCD for instantaneous value and status tracking

• Trip Logic: Integrated Alert and Danger relays with programmable time delays

• Safety Certification: Approved for Class 1, Division 2 hazardous zones (Option -01)

• Loop Integrity: Continuous "OK" circuit monitoring of sensor and internal electronics

• Module Mass: 1.00 kg

• Physical Footprint: 15.0 cm x 10.0 cm x 5.0 cm

Strategic Industrial Implementations

High-Speed Turbine Surveillance

In power generation, this module monitors X-Y orthogonal probe configurations on main steam and gas turbines. It provides the high-resolution 0–4 mil data required to track subtle orbital dynamics and ensure rotor stability during high-load operations.

Chemical and Process Compression

The 3300/16 protects high-speed centrifugal compressors in petrochemical facilities. By providing immediate hardware-based trip protection during surge conditions or vibration spikes, it prevents internal mechanical contact and costly seal failures.

Large-Scale Motor and Pump Monitoring

For high-horsepower motors driving boiler feed pumps or large blowers, this monitor tracks the shaft-to-bearing clearances. Its continuous surveillance allows plant operators to detect early signs of bearing wear or fluid-film issues before they cause unplanned outages.

Hydroelectric Unit Reliability

In hydro-generation facilities, the module tracks the runout and low-frequency vibration of large vertical or horizontal turbines. The 4–20 mA outputs ensure seamless integration with the plant’s Control System (DCS) for remote data trending and long-term asset health management.

Diagnostic Analysis Support

By utilizing the front-panel buffered outputs, maintenance specialists can connect portable vibration analyzers to perform spectral inspections. This supports a predictive maintenance strategy by identifying specific fault signatures like blade-pass frequencies or structural resonances without disturbing the primary protection loop.

FAQ

Q: What is the primary benefit of the 0 to 4.0 mil range on this 3300/16 model?

A: The 4-mil range provides much higher resolution for machinery that typically operates with very low vibration levels. This allows operators to see smaller changes in shaft motion that might be missed on a broader 0–10 mil scale.

Q: Does the "OK" circuit automatically bypass the Danger relay during a sensor failure?

A: Yes. If the "OK" circuit detects a fault in the transducer or field wiring, it will typically trip the "Not OK" status and can be configured to inhibit the Danger relay to prevent a false machinery trip due to instrumentation failure.

Q: Can this module be installed in a standalone housing?

A: The 3300/16 is a rack-mount module and must be installed in a Bently Nevada 3300/05 rack to receive power and interface with the system backplane and relays.

Q: How do I access the raw vibration data for a FFT analysis?

A: You can plug a portable data collector or analyzer directly into the two BNC connectors on the front of the monitor. These outputs are buffered, meaning they will not affect the monitor’s internal protection logic during your test.

Q: Is the 3300/16-13-01-01-00-01-02 compatible with older 7200 series proximity probes?

A: While technically possible with proper calibration, this specific model is optimized for 3300 and 3300 XL 8mm systems. You should verify that the probe's scale factor matches the monitor’s input requirements before commissioning.