Bently Nevada 3300/55-03-04-14-14-00-00-07-00 Dual Velocity Monitor Module
Bently Nevada 3300/55-03-04-14-14-00-00-07-00 Dual Velocity Monitor Module
The Bently Nevada 3300/55-03-04-14-14-00-00-07-00, also cataloged as the 3300/55 Dual Velocity Monitor, serves as a dedicated rack-based module for continuous velocity signal acquisition and alarm execution across machinery protection platforms.
Suffix Breakdown & Model Matrix
- -03 (Channels Option): Dual-channel velocity monitoring.
- -04 (Transducer Input): Configured for velocity transducer compatibility.
- -14 (Full-Scale Range Option): Factory-programmed range selection (suffix-specific).
- -14 (Scaling Option): Defines proportional scaling factors for recorder outputs.
- -00 (Barrier Option): None, no internal zener barriers.
- -00 (Agency Approval): Standard factory configuration.
- -07 (Relay Option): Relay configuration variant.
- -00 (Reserved): Factory standard.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 3300/55-03-04-14-14-00-00-07-00 |
| 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 | Supplied via 3300 rack backplane |
| Core Performance | Dual-channel velocity monitoring, relay alarm outputs, recorder scaling |
Eddy-Current Probe Scaling and Cross-Talk Suppression
The monitor applies linear scale factors aligned with Bently Nevada velocity transducers, ensuring accurate conversion of sensor signals into proportional recorder outputs. Gap voltage validation against -10 VDC reference points confirms probe installation integrity. Internal conditioning suppresses cross-talk between dual channels, maintaining fidelity in velocity measurements during startup, shutdown, and steady-state operation.
Frequently Asked Questions
Q: Can the 3300/55 module be hot-swapped in the rack? 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, recorder outputs are scaled proportionally to velocity input ranges for direct system integration.
Field Installation Guidelines
- Install the module into designated rack slots with full connector engagement.
- Ensure transducer 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.
Bently Nevada 3300/55-03-04-14-14-00-00-07-00 Dual Velocity Monitor Module
