Bently Nevada 3500/77M Cylinder Pressure Monitor

The Bently Nevada 3500/77M Cylinder Pressure Monitor is a four-channel module that accepts inputs from Bently Nevada-approved pressure transducers. It conditions these signals to generate accurate pressure measurements for reciprocating compressors and continuously compares the processed values with user-programmable alarm setpoints to provide reliable machinery protection. The monitor delivers essential machine data to operations and maintenance personnel for effective performance monitoring and diagnostics.

The Bently Nevada 3500/77M Cylinder Pressure Monitor provides eight measured variable values per channel related to cylinder pressure operation. For a single chamber, it measures discharge pressure, suction pressure, maximum pressure, minimum pressure, and compression ratio. This product enables precise monitoring of reciprocating compressor performance while supporting alarm and protection functions.

QInstrument is a leading supplier of Bently Nevada 3500/77M Cylinder Pressure Monitor in UK and Ireland (EU), offering competitive prices and fast worldwide shipping across Turkey, Saudi Arabia, Oman, Nigeria, Indonesia, Malaysia, Vietnam, Mexico, Brazil, Argentina, and Colombia. Buy Bently Nevada Vibration Monitor from one of the UK’s leading suppliers of industrial automation and instrumentation equipment.

Features of Bently Nevada 3500/77M Cylinder Pressure Monitor

• Accepts 1 to 4 channels
• Frequency response: 0–5.5 kHz
• Measured variables: Peak rod compression, Peak rod tension, Degree of rod reversal
• Pressure accuracy: 0.5% (0.5–10 V at 77°F), 1.0% (0.5–10 V over 22–150°F)
• Front panel LEDs: OK, TX/RX, Bypass
• Transducer power supply: 23 ±0.8 Vdc with 24.5 mA current limiting

Technical Specifications of Bently Nevada 3500/77M Cylinder Pressure Monitor

• Channels: 1–4 pressure input channels
• Input types: Bently Nevada approved pressure transducers
• Frequency response: 0–5.5 kHz
• Measured variables per channel: Peak rod compression, peak rod tension, degree of rod reversal
• Pressure measurement accuracy: 0.5% (0.5–10 V at 77 °F), 1.0% (0.5–10 V across 22–150 °F)
• Transducer power supply: 23.0 ± 0.8 Vdc with 24.5 mA current limiting
• Alarm capability: User‑programmable alarm setpoints
• Configuration: 3500 Rack Configuration Software
• Indicators: Front‑panel LEDs OK, TX/RX, Bypass
• Mounting: Fits in 3500 series rack
• Power consumption: ~7–9 W typical
• Operating temperature: –30 °C to +65 °C (–22 °F to +149 °F)
• Storage temperature: –40 °C to +85 °C (–40 °F to +185 °F)
• Humidity tolerance: Up to 95 % non‑condensing
• System integration: Compatible with Bently Nevada 3500 series

Vibration Monitor Part Number & Configuration Guide

Standard (Example) Part Number

3500/77-01-00

This is a reference configuration for the Bently Nevada 3500/77M Cylinder Pressure Monitor. It represents one commonly supplied setup and helps customers understand how the part number is structured.

Configurable Part Number Format

3500/77-XX-XX

Each X / XX in the part number indicates a selectable option that can be customized based on your application requirements such as Number of Channels, I/O Module Type & Approvals.

✅ Important: Final part number depends on the exact configuration needed for your machinery, environment, and monitoring system.

Applications

The Bently Nevada 3500/77M Cylinder Pressure Monitor is commonly used in industrial machinery protection and monitoring, including:

• Monitoring cylinder pressure in reciprocating compressors
• Measuring peak rod compression, peak rod tension, and degree of rod reversal
• Detecting abnormal pressure conditions for machinery protection
• Providing alarm and trip inputs based on cylinder pressure
• Supporting predictive maintenance and operational diagnostics
• Integrating with 3500 series machinery protection systems

Downloadable

Bently Nevada 3500/77M Cylinder Pressure Monitor Product Specifications

Why Choose QInstrument?

At QInstrument, we’re more than just an industrial instrument supplier, we’re your trusted partner for industrial automation, instrumentation, control systems, and test & measurement solutions.

Here’s why companies across the United Kingdom (UK) and Ireland (EU) choose us for industrial products and technical support:

• Test & Measurement Instruments You Can Trust: We supply high-quality test and measurement instruments from leading global brands, including industrial sensors, multimeters, oscilloscopes, accelerometers, proximity probes, calibrators, and advanced diagnostic tools for condition monitoring, maintenance, and industrial applications.
• Industrial Automation & Control Solutions: Our product portfolio includes PLC systems, SCADA solutions, transmitters, analyzers, process control instruments, vibration monitoring systems, and industrial networking solutions designed to improve operational efficiency, accuracy, and reliability.
• Fast, Reliable Worldwide Delivery: We proudly support customers across Turkey, Saudi Arabia, Oman, Nigeria, Indonesia, Malaysia, Vietnam, Mexico, Brazil, Argentina, and Colombia with reliable products, technical expertise, responsive customer service, and efficient global delivery solutions.

We Ship Worldwide

At QInstrument, we supply industrial automation, test and measurement instruments, control systems, and sensors across the United Kingdom (UK) and Ireland (EU), offering fast and reliable worldwide delivery. Through strong global logistics partnerships, we ensure efficient shipping and professional support for customers across Europe, South America, Africa, Southeast Asia, and the Middle East.

🡆 Europe (United Kingdom, Turkey)
🡆 South America (Brazil, Argentina, Colombia)
🡆 Africa (Nigeria)
🡆 Southeast Asia (Indonesia, Malaysia, Vietnam)
🡆 Middle East (Saudi Arabia, Oman)