The Bently Nevada 3500/77M 143729-01 Cylinder Pressure I/O Module is an integral part of the 3500 Machinery Protection System, designed specifically for monitoring cylinder pressure in reciprocating compressors. By capturing and analyzing cylinder pressure signals, it enables detailed performance evaluation, combustion efficiency monitoring, and detection of mechanical and operational issues. This module provides high-resolution data that supports advanced diagnostics, predictive maintenance, and operational optimization, helping plants reduce downtime, improve efficiency, and extend equipment life.

Key Features

• Dedicated cylinder pressure monitoring for reciprocating compressors

• High-resolution pressure measurements for performance and diagnostic analysis

• Integration with the 3500/77M Reciprocating Compressor Monitor

• Supports proximity probes and cylinder pressure sensors

• Provides real-time data to plant control and monitoring systems

• User-configurable alarm setpoints for safety and protection

• Seamless integration into Bently Nevada 3500 rack systems

• Enhanced reliability in harsh industrial environments

Technical Specifications

Industry Applications

• Reciprocating compressors – monitoring combustion pressure and efficiency

• Oil and gas processing – real-time compressor performance analysis

• Petrochemical plants – early detection of abnormal cylinder pressure conditions

• Power generation – condition monitoring of reciprocating auxiliary equipment

• Industrial gas plants – optimizing operational efficiency and equipment reliability

Frequently Asked Questions (FAQ)

Q1: What does the 3500/77M 143729-01 monitor?

It measures cylinder pressure in reciprocating compressors.

Q2: How many channels does the module provide?

It provides 2 input channels for pressure and reference signals.

Q3: What sensors are compatible with this module?

It supports Bently Nevada cylinder pressure transducers and proximity probes.

Q4: Can the module provide alarm setpoints?

Yes, it has configurable Alert and Danger alarm thresholds per channel.

Q5: Is it designed for predictive maintenance?

Yes, it provides high-resolution pressure data for diagnostics and maintenance planning.

Q6: What is its operating temperature range?

The module operates between -30°C and +65°C.

Q7: Which Bently Nevada module does it work with?

It works with the 3500/77M Reciprocating Compressor Monitor.

Q8: How is the module powered?

It receives power from the 3500 rack backplane.

Q9: What industries typically use this module?

Mainly oil & gas, petrochemical, power generation, and industrial gas facilities.

Q10: Does it integrate with plant control systems?

Yes, it communicates via the 3500 rack system into DCS/SCADA or other control systems.