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Bently Nevada 3500/77M 176449-07｜Recip Cylinder Pressure Monitor｜
Technical Specifications & Functions
Input type
Piezoelectric pressure sensors (Bently Nevada–certified, e.g. 165855 series)
Sensor power supply
23.0 ± 0.8 V DC, current limit 24.5 mA
Maximum sensor current per channel: 10 mA
Input range
0–10,000 psi (0–68.9 MPa), suitable for high-pressure cylinder applications
Measurement accuracy
±0.25% of full scale (FS)
Resolution: 0.01% FS
Frequency response
0–5.5 kHz, optimized for dynamic cylinder pressure and rapid pressure fluctuation measurement
Measured parameters
Supports calculation and monitoring of 8 parameters, including:
exhaust pressure, suction pressure, maximum pressure, minimum pressure, compression ratio, and related cylinder pressure characteristics
Alarm and protection output
Programmable Alert / Danger setpoints with alarm delay
Supports relay and logic outputs for protection and control
Communication interface
3500 system backplane bus, supporting remote configuration, programming, and diagnostics via rack configuration software
Core Application Scenarios
Oil and gas
Cylinder pressure monitoring for reciprocating compressors, fully compatible with 3500-series compressor protection systems
Chemical industry
Cylinder pressure condition monitoring and fault warning for process compressors and diaphragm pumps
General industry
Safety protection and condition monitoring of reciprocating machinery cylinder pressure to reduce the risk of unplanned downtime
Bently Nevada 3500/77M 176449-07｜Recip Cylinder Pressure 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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