The Bently Nevada 3300/48 Case Expansion Monitor is a specialized rack-mounted module engineered to track the thermal expansion of turbine casings relative to the machine foundation. This monitoring is essential for large rotating equipment, such as steam turbines, where monitoring casing growth is vital to prevent mechanical interference and ensure operational safety. The module provides continuous signal processing and compares real-time expansion data against user-defined alarm setpoints to facilitate predictive maintenance.
| Model | 3300/48-03-02-00-00 |
| Brand | Bently Nevada |
| Series | 3300 |
| Operating Temperature | 0 to 60 degC |
| Power Consumption | 1.5 W (typical) |
| Sensitivity | 200 mV/mil or 100 mV/mil (configurable) |
| Accuracy | +/- 0.33% typical; +/- 1% max at 25 degC |
| Output Signals | +4 to +20 mA, +1 to +5 VDC, 0 to -10 VDC |
The 3300/48 is designed to monitor the thermal expansion of turbine casings relative to their foundation, helping to prevent mechanical interference during machine operation.
This model is configured to accept inputs from proximity probes or LVDTs (Linear Variable Differential Transformers) via Proximitor sensors.
The module features front-panel LED indicators for OK, Bypass, Alert, and Danger statuses, and provides relay outputs for external alarm notification.
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