Bently Nevada 3300/45-02-02-03-00 Dual Differential Expansion Monitor
Bently Nevada 3300/45-02-02-03-00 Dual Differential Expansion Monitor
Configured for dual-channel differential expansion monitoring in turbine supervisory instrumentation networks, the Bently Nevada 3300/45-02-02-03-00 (3300/45 Dual Differential Expansion Monitor) provides direct physical execution of displacement measurement and alarm relay signaling.
Suffix Breakdown & Model Matrix
- -02 (Full-Scale Range): 0 to 10 mm peak-to-peak displacement.
- -02 (Transducer Input): Designed for 50 mm (2.0 inch) extended-range proximity transducer systems.
- -03 (Alarm Relays): Quad Relay Module with independent Alert and Danger dry-contact relays for both channels.
- -00 (Agency Approval): Standard factory configuration, no hazardous area certifications.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 3300/45-02-02-03-00 |
| Brand | Bently Nevada |
| Origin | USA |
| Weight | ~1.0 kg |
| Dimensions | Dual-width rack slot module |
| Operating Temp | 0 to +65 deg C |
| Power Consumption | Drawn from 3300 rack backplane |
| Core Performance | Two independent monitoring channels, ±0.5% accuracy, 4-20 mA recorder outputs |
Rotor Dynamics and Gap Voltage Validation
The monitor integrates rotor dynamics evaluation by tracking axial differential expansion across two channels. Gap voltage validation against -10 VDC reference points ensures probe calibration accuracy. Internal conditioning suppresses cross-talk between probes, maintaining fidelity in multi-sensor configurations.
Frequently Asked Questions
Q: Can the 3300/45-02-02-03-00 be hot-swapped in the rack? A: No, modules require rack power-down before insertion or removal to avoid backplane disturbance.
Q: What recorder outputs are provided per channel? A: Each channel delivers independent 4-20 mA DC linearized outputs for PLC/DCS integration.
Q: How are alarm relays configured? A: Quad relay configuration provides epoxy-sealed dry contacts with Alert and Danger outputs for both channels.
Field Installation Guidelines
- Install into designated dual-width 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 digitally via front panel switches prior to system startup.
Bently Nevada 3300/45-02-02-03-00 Dual Differential Expansion Monitor
