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Bently Nevada

Bently Nevada 3300/45-XX-01-03-00 Dual Differential Expansion Monitor
SKU: 3300/45-XX-01-03-00
In stock: 10
Description

Bently Nevada 3300/45-XX-01-03-00 Dual Differential Expansion Monitor

The Bently Nevada 3300/45-XX-01-03-00, also cataloged as the 3300/45 Dual Differential Expansion Monitor, operates as a dedicated hardware component for axial differential expansion measurement within Turbine Supervisory Instrumentation (TSI) networks.

Suffix Breakdown & Model Matrix

  • XX (Range Option): Configurable full-scale displacement range depending on suffix selection.
  • -01 (Transducer Input): Accepts signals from proximity transducers or proximitor sensor systems.
  • -03 (Alarm Relay): Provides Alert and Danger relay outputs via epoxy-sealed dry contacts.
  • -00 (Agency Approval): Standard factory configuration, no hazardous area certifications.

Hardware Specifications

Parameter Specification
Model 3300/45-XX-01-03-00
Brand Bently Nevada
Origin USA
Weight Approx. 1 kg
Dimensions Rack slot module, dual-width
Operating Temp -20 to +65 deg C
Storage Temp Not specified
Relative Humidity Up to 95%, non-condensing
Power Consumption Operates on standard rack supply (18–32 VDC)
Core Performance Dual-channel differential expansion monitoring, relay alarm outputs

Rotor Dynamics and Gap Voltage Validation

The monitor supports rotor dynamics evaluation by tracking axial displacement differences between turbine rotor and casing. Gap voltage validation against -10 VDC reference points ensures probe calibration accuracy. Internal conditioning suppresses cross-talk between dual channels, maintaining fidelity in displacement measurements during startup, shutdown, and steady-state operation.

Frequently Asked Questions

Q: Can the 3300/45-XX-01-03-00 module be inserted while the rack is powered? A: No, rack power must be shut down before insertion or removal to avoid backplane disturbance.

Q: How are relay outputs configured for dual channels? A: Each channel provides independent Alert and Danger relay outputs, configurable via rack interface.

Q: Does the monitor provide linear outputs for integration with PLC/DCS systems? A: Yes, each channel supports 4-20 mA DC linear outputs for direct system integration.

Field Installation Guidelines

  • Install the module into designated rack slots with full connector engagement.
  • Ensure proximity probe wiring is shielded and grounded at the rack end only to prevent ground loops.
  • Route signal cabling separately from high-voltage conductors to minimize induced noise.
  • Validate probe gap voltage near -10 VDC before commissioning to confirm displacement scaling.
  • Configure alarm setpoints via rack interface prior to turbine startup.