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Bently Nevada 3500/77M Cylinder Pressure Monitor
The Bently Nevada 3500/77M Cylinder Pressure Monitor is a four-channel module that accepts Bently Nevada-approved pressure transducer inputs, conditions the signals, and compares them with user-programmable alarm setpoints for reliable reciprocating compressor protection. Each channel provides multiple measured variables, including discharge pressure, suction pressure, maximum and minimum pressures, and compression ratio, delivering essential data for operations, maintenance, and machinery monitoring.
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Categories: Vibration Monitor
Description
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.
QTech Safety is a leading supplier of Bently Nevada 3500/77M Cylinder Pressure Monitor in Ireland, offering competitive prices and fast worldwide shipping across United Kingdom (UK), Germany, France, Italy, Spain, United States USA, Canada, Mexico, and Western Australia (Perth). Buy Bently Nevada Vibration Monitor from one of Ireland’s most trusted industrial safety equipment suppliers.
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
Why Choose QTech Safety?
At QTech Safety, we’re more than just a safety supplier we’re your trusted partner in workplace protection and compliance.
Here’s why companies across UK and Ireland (EU) choose us for safety products and training:
- Comprehensive Range of Safety Equipment:
From gas detection and PPE to industrial safety tools, we offer one of the widest selections of trusted brands all at competitive Irish market prices. - Test & Measurement Instruments You Can Trust:
We supply a wide range of test and measurement instruments from the most leading and trusted brands, including industrial sensors, multimeters, oscilloscopes, accelerometers, proximity sensors, and other advanced measurement tools to support accurate diagnostics, condition monitoring, calibration, and maintenance applications. - Expert Health & Safety Training:
We provide professional health and safety training programmes designed to help your workforce stay compliant and confident on the job. - Fast, Reliable Delivery Worldwide:
Whether you’re in Texas United States or Perth Western Australia, our fast delivery service ensures you get your safety equipment quickly and efficiently. - Trusted by European Businesses:
We’re proud to support industries across Europe (UK) with certified safety solutions, expert advice, and responsive customer service.
We Ship Worldwide
At QTech Safety, we supply industrial sensors and instrumentation across Ireland, offering fast and reliable worldwide delivery. Through strong global logistics partnerships, we ensure efficient shipping and professional support for customers in Europe, North America, and Australia.
🡆 Europe (United Kingdom, Ireland, Germany, France, Italy, Spain, and the rest of European Union)
🡆 Australia (Western Australia WA, Queensland QLD, and New South Wales NSW)
🡆 North America (United States, Canada, Mexico)
