Bently Nevada 3500/77M 176449-07V

(Reciprocating Cylinder Pressure Monitor Module)

Overview

The Bently Nevada 3500/77M 176449-07V is a high-performance 4-channel cylinder pressure monitoring module designed for use within the 3500 Series Machinery Protection System. It is primarily used to monitor reciprocating compressors, providing real-time pressure analysis and critical machinery protection.

This module accepts input from approved pressure transducers, processes the signals, and compares them with user-defined alarm setpoints to ensure safe and efficient operation.

Key Features

• 4-channel monitoring system for cylinder pressure inputs
• Compatible with Bently Nevada pressure transducers
• Real-time signal conditioning and analysis
• Configurable Alert and Danger alarms
• Provides continuous machinery protection
• Designed for reciprocating compressor applications
• Seamless integration into 3500 rack systems

Measured Parameters

Each channel can generate multiple calculated values, including:

Basic Pressure Values

• Discharge Pressure
• Suction Pressure
• Maximum Pressure
• Minimum Pressure
• Compression Ratio

Advanced Calculations

• Peak Rod Compression
• Peak Rod Tension
• Degree of Rod Reversal

These parameters help operators evaluate compressor performance and detect abnormal conditions early.

Technical Specifications

• Model: 3500/77M
• Part Number: 176449-07V
• Channels: 4
• Input Type: Pressure transducers
• Accuracy: Up to ±0.25% FS
• Signal Output: Configurable (e.g., 4–20 mA)
• Power Supply: 24 VDC (typical)
• Operating System: 3500 Machinery Protection System
• Mounting: 3500 Series rack

(Note: “07V” usually indicates version/revision or coating variant—functionally similar to 176449-07.)

Functions

• Continuous cylinder pressure monitoring
• Alarm and shutdown protection based on setpoints
• Supports predictive maintenance
• Enhances machine reliability and safety

Applications

• Oil & Gas (compressor systems)
• Petrochemical plants
• Power generation
• Industrial process control
• Heavy machinery monitoring

Advantages

• High accuracy and reliability
• Advanced diagnostics for reciprocating machines
• Reduces unplanned downtime
• Improves maintenance decision-making