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Bently Nevada 3500/42M 140734-02｜Proximity/Seismic Monitor Module｜
Channel Configuration and Functional Characteristics
Channel configuration
The module provides 4 independent channels, supporting paired-channel programming (Channels 1–2 and 3–4) for use with eddy current proximity probes (e.g. 3300 XL) and seismic sensors (velocity or acceleration).
Measurement functions
Supports a wide range of machinery condition parameters, including:
Radial vibration
Axial displacement
Differential expansion
Eccentricity
Velocity / acceleration
This makes the module suitable for comprehensive monitoring of rotating machinery.
Input characteristics
Input impedance: 10 kΩ (standard I/O)
Compatible with proximitor and acceleration/velocity sensor signal characteristics
Signal outputs
4–20 mA per channel
0–10 V per channel
Buffered sensor output
Outputs are fully compatible with PLC/DCS systems and external data acquisition equipment.
Multi-sensor compatibility
Supports both:
Eddy current sensors for displacement and vibration measurements
Seismic sensors for velocity and acceleration measurements
This flexibility allows adaptation to diverse monitoring requirements.
High-precision signal processing
Each channel provides independent signal conditioning, including filtering, amplification, and linearization, ensuring high measurement accuracy while minimizing inter-channel interference.
Programmable alarms and protection
User-configurable alarm thresholds are supported. When alarm conditions are detected, protection signals are issued via the 3500 system, helping prevent equipment damage and unplanned shutdowns.
System integration
Seamlessly integrates with the Bently Nevada 3500 platform and System 1 software, supporting:
Paired-channel programming
Voting logic configuration (1oo1 and 2oo2)
Designed to meet the protection and reliability requirements of critical rotating equipment.
Bently Nevada 3500/42M 140734-02｜Proximity/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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