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Bently Nevada 3500/70M 140734-09｜Velocity Monitor｜
Functions
Specialized monitoring for reciprocating machinery
Optimized for the vibration characteristics of compressor crankshafts and crossheads. Supports measurement of key parameters such as pulse acceleration and reciprocating speed, and is well suited for low-frequency vibration and impact signals typical of reciprocating machines.
Flexible channel configuration
Four-channel paired architecture allows independent configuration of measurement functions, enabling differential monitoring across multiple measurement points.
High-precision signal processing
Wide frequency response covering the dominant vibration frequencies of reciprocating machinery. Built-in filtering and calibration algorithms provide measurement accuracy of up to ±0.1% FS.
Multi-level alarms and protection
Programmable alert and danger setpoints with alarm delay functions to prevent nuisance alarms from transient fluctuations. Relay outputs can be directly linked to machine trip and shutdown protection.
Remote diagnostics and maintenance
Supports remote configuration, calibration, and fault diagnostics via 3500 rack configuration software. Front-panel LED indicators enable fast identification of channel and communication faults.
Industrial-grade reliability
Dual isolation design with strong electromagnetic interference immunity. Designed for harsh environments involving high temperature and vibration, with MTBF > 100,000 hours.
Applications
Oil and gas
Crankshaft and crosshead vibration monitoring for reciprocating compressors and pump units, compatible with 3500-series compressor protection systems.
Chemical industry
Vibration condition monitoring and early fault warning for reciprocating process compressors and diaphragm pumps.
Power industry
Vibration protection of reciprocating machinery in gas turbine auxiliary systems, such as lubricating oil pumps.
General industry
Predictive maintenance of various reciprocating machines to reduce the risk of unplanned downtime and improve equipment availability.
Bently Nevada 3500/70M 140734-09｜Velocity Monitor｜
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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