• Bently Nevada 3300/55
  • Bently Nevada 3300/55
  • Bently Nevada 3300/55
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Bently Nevada 3300/55 Dual Velocity Monitor

Bently Nevada 3300/55 Dual Velocity Monitor

Description

The Bently Nevada 3300/55 Dual Velocity Monitor is a key component of the 3300 Monitoring System, designed to provide continuous, reliable vibration monitoring for industrial rotating machinery. This module accepts...

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SKU: 3300/55
Vendor: Bently Nevada
Category: Vibration Monitor Module
Related Series:

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Description

The Bently Nevada 3300/55 Dual Velocity Monitor is a key component of the 3300 Monitoring System, designed to provide continuous, reliable vibration monitoring for industrial rotating machinery. This module accepts input from velocity seismoprobes to monitor casing vibration, ensuring equipment health and protection through precise signal processing and alarm capabilities.

Features

  • Dual-channel monitoring for independent or redundant vibration measurement.
  • Configurable scale factors including 500 mV/in/s, 145 mV/in/s, and 100 mV/in/s.
  • Integrated 4-20 mA recorder outputs for external data logging and trend analysis.
  • Wide frequency response range from 3 Hz to 10,000 Hz.
  • Robust design for harsh industrial environments with high humidity tolerance.

Applications

This monitor is widely used in power generation, oil and gas, and petrochemical facilities to protect critical assets such as turbines, compressors, pumps, and fans. It is specifically engineered for casing vibration monitoring where velocity-based measurements are required to detect mechanical faults.

Technical Specifications

Product Model 3300/55
Sensitivity 500 mV/in/s, 145 mV/in/s, or 100 mV/in/s
Frequency Range 3 Hz to 10,000 Hz (180-600,000 cpm)
Accuracy Within +/- 0.33% of full-scale typical
Resolution Within +/- 1.6% of monitor full-scale
Output Impedance 100 Ohm
Operating Temperature 0 degC to +65 degC (+32 degF to +150 degF)
Storage Temperature -40 degC to +85 degC (-40 degF to +185 degF)
Relative Humidity Up to 95%, non-condensing

Installation Guidelines

  • Ensure the 3300 rack is properly grounded to a clean earth point to minimize electrical noise.
  • Always power down the rack before inserting or removing the 3300/55 module to prevent damage to the backplane connectors.
  • Use shielded twisted-pair cabling for all signal inputs to maintain signal integrity and reduce EMI/RFI interference.
  • Verify that the probe sensitivity settings on the module match the installed seismoprobe specifications.
  • Maintain adequate airflow around the 3300 rack to ensure the module operates within the specified temperature range.

FAQ

What is the primary function of the 3300/55?
The 3300/55 is a dual-channel velocity monitor used to measure and track casing vibration on rotating machinery, providing necessary alarm outputs for machinery protection.

Can this module be used with different seismoprobes?
Yes, the module supports multiple sensitivity settings (500, 145, and 100 mV/in/s), allowing it to be configured for various compatible velocity sensors.