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Bently Nevada 3500/42 125672-02｜Seismic Monitor Module｜
Channel configuration
The module provides 4 fully independent channels, supporting both eddy current proximity probes (e.g. 3300 XL) and seismic sensors (acceleration or velocity).
Each channel can be individually configured for the required measurement type.
Input sensitivity
Eddy current probes: 3.94 mV/µm (100 mV/mil)
Seismic – acceleration: 10 mV/g
Seismic – velocity: 10 mV/(mm/s)
Supports accurate matching with different sensor types.
Measurement ranges
Eddy current measurements:
Radial vibration: 0 – 5000 µm
Axial displacement: 0 – 25.4 mm
Seismic measurements:
Vibration frequency range: 0.1 Hz – 1 kHz
These ranges cover common monitoring requirements for rotating machinery.
Output signals
4–20 mA per channel
0–10 V per channel
Buffered sensor output
Fully compatible with PLC/DCS systems and external data acquisition platforms.
Alarm configuration
Programmable Warning and Danger (Trip) thresholds for each channel
Supports 1oo1 and 2oo2 voting logic
Configuration and diagnostics via System 1 software
Power supply
18 – 30 VDC (typical 24 VDC)
Power consumption: ≤ 8 W
Supplied directly from the Bently Nevada 3500 rack backplane
Bently Nevada 3500/42 125672-02｜Seismic Monitor Module｜
By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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