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- Bently Nevada
- 3500/77M 143737-01
- Cylinder Pressure Monitor I/O Module
- USA
- 241.3 mm × 24.4 mm × 241.8 mm
- 0.9kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
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📘 Product Overview: Bently Nevada 3500/77M 143737-01
Brand: Bently Nevada
Series: 3500 Machinery Protection and Condition Monitoring System
Module Name: 3500/77M Dynamic Pressure Monitor
Model Number: 143737-01
The Bently Nevada 3500/77M 143737-01 is a Dynamic Pressure Monitor Module designed for the 3500 system. This module provides continuous monitoring of dynamic pressure signals in critical machinery, allowing detection of pressure pulsations, combustion instability, surge, cavitation, and other rapid pressure fluctuations in turbines, compressors, and pumps.
Designed for use with pressure transducers, the 3500/77M offers two independent channels of monitoring, real-time processing, alarm generation, and data integration. This ensures plant safety and machinery performance in systems where fast, subtle pressure changes can cause significant mechanical issues or operational inefficiencies.
📐 Technical Specifications
| Parameter | Value |
|---|---|
| Model | 3500/77M 143737-01 |
| Module Type | Dynamic Pressure Monitor Module |
| Channels | 2 independent input channels |
| Input Signal Type | Dynamic Pressure Transducers (Charge or Voltage Type) |
| Frequency Range | Up to 20 kHz (depends on configuration and sensor type) |
| Alarms | OK, Alert, Danger per channel |
| Output Options | 4–20 mA (optional via relay/I/O module), Buffered Outputs |
| Sampling Method | Real-time digital signal processing |
| Rack Compatibility | Standard 3500 rack (paired with backplane and I/O module) |
| Operating Temperature | -30°C to +65°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 0–95% non-condensing |
| Power Supply | Supplied via rack backplane |
| Dimensions | 241.3 mm × 24.4 mm × 241.8 mm |
| Weight | 0.90 kg |
| Mounting | Front slot of 3500 rack |
🏭 Applications
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Turbomachinery: Detects surge, pulsation, or resonance in compressors and turbines.
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Combustion Monitoring: Detects instability or pressure waves in gas turbines or boilers.
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Pumps & Valves: Identifies cavitation or hydraulic instability.
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Reciprocating Compressors: Analyzes pressure patterns for efficiency and fault detection.
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Oil & Gas Facilities: Real-time monitoring in upstream and downstream pressure systems.
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Power Plants: Integration with turbine combustion chambers and safety loops.
🌟 Product Advantages
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✅ High-Speed Monitoring: Captures fast pressure transients, crucial for surge and combustion control.
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✅ Dual-Channel Design: Allows simultaneous monitoring of two independent dynamic signals.
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✅ Advanced Signal Processing: Built-in digital analysis avoids need for external PLCs or systems.
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✅ Compact Integration: Seamlessly fits in the 3500 rack system with minimal configuration.
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✅ Custom Alarm Settings: Independent Alert and Danger thresholds for each channel.
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✅ Flexible Input Support: Compatible with multiple sensor types (charge or voltage-based).
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✅ Buffered Output Ports: Provides test and calibration signal access for diagnostics.
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✅ No External Power Supply: Simplifies installation via power from the rack backplane.
🏷️ Brand and Series Information
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Brand: Bently Nevada
-
Series: 3500 Machinery Protection System
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Module Classification: Dynamic Pressure Monitoring Module
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System Compatibility: Fully compatible with all standard 3500 racks and I/O modules
📌 Related Models (Same Series or Functionally Similar)
| Model | Channels | Function | Dimensions (mm) | Weight (kg) | Notes |
|---|---|---|---|---|---|
| 3500/77M 143738-01 | 2 | Dynamic Pressure Monitor (Variant) | 241.3 × 24.4 × 241.8 | 0.90 | Alternate configuration with different filtering ranges |
| 3500/73M 149992-01 | 2 | Speed/Tachometer Monitor | 241.3 × 24.4 × 241.8 | 0.85 | Tachometer module for overspeed and phase tracking |
| 3500/70M 144181-01 | 2 | Velocity Monitor | 241.3 × 24.4 × 241.8 | 0.88 | Monitors dynamic vibration using velocity transducers |
| 3500/42M 176449-02 | 4 | Vibration/Seismic Monitor | 241.3 × 24.4 × 241.8 | 0.91 | Monitors proximity probes and velocity pickups |
| 3500/60 133819-01 | 6 | Temperature Monitor | 241.3 × 24.4 × 241.8 | 0.86 | For RTD and thermocouple monitoring |
🔥 Popular Bently Nevada Models (Same Brand)
| Model | Function | Channels | Dimensions (mm) | Weight (kg) | Notes |
|---|---|---|---|---|---|
| 3500/40M 140734-01 | Proximitor Vibration Monitor | 4 | 241.3 × 24.4 × 241.8 | 0.92 | Monitors shaft vibration and displacement |
| 3500/42M 135489-01 | Seismic/Proximitor Monitor | 4 | 241.3 × 24.4 × 241.8 | 0.90 | Supports multiple types of vibration sensors |
| 3500/60 133819-01 | Temperature Monitor | 6 | 241.3 × 24.4 × 241.8 | 0.86 | Accepts RTDs and thermocouples |
| 3500/65 145988-02 | 16-Channel Temperature Monitor | 16 | 241.3 × 24.4 × 241.8 | 1.10 | High-density temperature input module |
| 3500/25 125792-01 | Keyphasor Module | 2 | 241.3 × 24.4 × 241.8 | 0.80 | Phase reference for speed and vibration |
❓ Frequently Asked Questions (FAQ)
Q1: What is the main purpose of the 3500/77M 143737-01 module?
A1: It is used for dynamic pressure monitoring in machinery, helping detect pulsations, instabilities, or surges in real time.
Q2: How many channels does this module support?
A2: It supports 2 independent input channels, allowing dual-point monitoring.
Q3: What kind of sensors are compatible with it?
A3: It works with charge-type and voltage-type dynamic pressure transducers.
Q4: Can it be installed in any 3500 rack system?
A4: Yes, it is fully compatible with standard 3500 racks and I/O configurations.
Q5: Does it have real-time alarming capability?
A5: Yes, it provides real-time processing and individual OK, Alert, and Danger alarms per channel.
Q6: What is the operating temperature range of this module?
A6: It operates between -30°C and +65°C, with storage down to -40°C.
Q7: Can the data be exported or integrated with other systems?
A7: Yes, buffered outputs and optional 4–20 mA support allow integration with control systems or diagnostic tools.
Q8: What kind of diagnostics does the module offer?
A8: It provides self-checks, sensor health monitoring, and front-panel indicators for fault status.
Q9: What industries benefit most from using this module?
A9: Oil & gas, power generation, chemical processing, and industries using high-speed rotating or reciprocating machinery.
Q10: What makes this module different from vibration modules?
A10: Unlike vibration modules, this unit focuses on dynamic pressure—detecting pressure waves, pulsations, and combustion instabilities instead of shaft displacement or velocity. This makes it ideal for detecting fluid or gas-related issues in machinery rather than purely mechanical imbalances.
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