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The Bently Nevada 3300/26 Dual Accelerometer RMS Monitor is a specialized vibration monitoring module designed for the 3300 series rack systems. This unit provides continuous monitoring of acceleration and velocity parameters, delivering reliable data for protective machinery management and condition-based maintenance.

Features

  • Dual-channel configuration for monitoring two independent accelerometer inputs.
  • RMS (Root Mean Square) signal processing for accurate vibration amplitude measurement.
  • Standard 4-20 mA output for integration with DCS, PLC, or SCADA monitoring systems.
  • Wide frequency response capability for diverse rotating machinery applications.
  • Designed for integration into existing Bently Nevada 3300 series rack environments.

Technical Specifications

Model 3300/26-XX-XX-XX-00-00-01-00
Function Dual Accelerometer RMS Monitor
Sensitivity 100 mV/g (10 mV per m/s2)
Frequency Range (No Filter) 2.7 Hz to 90 kHz (-3 dB nominal)
Frequency Range (w/ Integration) 10 Hz to 90 kHz
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 series rack is powered down before inserting or removing the monitor module to prevent electrical damage.
  • Verify that the module is fully seated in the rack slot and that the front panel connectors are secured.
  • Use appropriate shielded cabling for sensor inputs to minimize EMI interference in high-noise industrial environments.
  • Observe proper grounding practices for the rack and signal wiring to maintain signal integrity.
  • Maintain ambient operating temperatures within the specified 0 to 65 degC range to ensure long-term component reliability.

FAQ

What is the primary function of the 3300/26 monitor?
This module is designed to accept inputs from accelerometers and convert them into RMS vibration levels, providing a 4-20 mA output for process control systems.

Is this module compatible with other 3300 series components?
Yes, the 3300/26 is specifically engineered to function within the standard Bently Nevada 3300 series rack architecture.

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