3500/50M Benlty Navada Module Parts Tachometer Module for machinery protection
The Bently Nevada 3500/50M is a tachometer module designed for machinery protection and condition monitoring applications. It is part of the Bently Nevada 3500 Machinery Protection System and is used to measure shaft speed, detect rotational speed changes, and provide speed-related signals for machinery monitoring.
It is commonly used in industrial equipment such as turbines, compressors, pumps, and other rotating machinery where reliable speed monitoring is important for safe and stable operation.
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 3500/50M |
| Product type | Tachometer Module |
| Product family | 3500 Machinery Protection System |
| Number of channels | 2 |
| Input sensors | Proximity probes or magnetic pickups |
| Input signal range | +10.0 V to −24.0 V |
| Input impedance | 20 kΩ standard; 40 kΩ TMR; 7.15 kΩ internal barrier |
| Typical power consumption | 5.8 W |
| Maximum input frequency | Up to 20 kHz |
| Maximum full-scale speed | Up to 99,999 rpm |
| Recorder output | 4–20 mA |
| Buffered transducer output impedance | 550 Ω |
| Configuration software | 3500 Rack Configuration Software |
| Installation | Compatible 3500 system rack |
- Shaft rotational speed measurement
- Rotor acceleration monitoring
- Zero-speed detection
- Reverse-rotation detection
- Programmable speed and alarm setpoints
- Peak-speed and reverse-rotation history
- Conditioned Keyphasor signal output for compatible 3500 rack monitors
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The 3500/50M is used to monitor shaft speed, rotor acceleration, zero speed, and reverse rotation in industrial rotating machinery.
It has two channels and accepts signals from compatible proximity probes or magnetic pickups.
It belongs to the Bently Nevada 3500 Machinery Protection System.
The module is configured using 3500 Rack Configuration Software, which allows users to set up monitoring functions and alarm parameters.
Yes. It can be configured to detect reverse rotation and provide corresponding notifications.
Yes. It can provide conditioned Keyphasor signals to the 3500 rack backplane for use by compatible monitoring modules.
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