Bently Nevada 3500/70M PWA184573-99
Reciprocating Impulse / Velocity Monitor Module
Overview
The Bently Nevada 3500/70M (PWA184573-99) is a high-performance reciprocating impulse and velocity monitor module designed for the 3500 Machinery Protection System. It is widely used in critical industrial applications to monitor reciprocating compressors and machinery, providing accurate vibration and speed measurements for predictive maintenance.
As part of the 3500 system, it helps prevent machinery damage by delivering real-time condition monitoring and alarm protection.
Key Features
- Dual measurement capability: Monitors both reciprocating velocity and impulse signals
- High accuracy monitoring: Ensures precise detection of vibration and speed changes (±0.2% to ±0.5% typical)
- Multi-channel design: Supports multiple inputs for comprehensive machine coverage
- Wide operating range: Suitable for low to high-frequency vibration monitoring
- Rugged industrial design: Operates reliably in harsh environments (-40°C to +70°C or higher)
- Integration capability: Works seamlessly with the 3500 rack system and monitoring software
- Alarm and protection functions: Configurable setpoints for early fault detection
- Technical Specifications (Typical)
- Model: 3500/70M
- PWA: 184573-99
- Function: Reciprocating Impulse / Velocity Monitoring
- Accuracy: ±0.2% ~ ±0.5% of reading
- Frequency Range: Approx. 0.1 – 300 Hz
- Power Supply: 12–30 VDC or system powered
- Operating Temperature: -40°C to +70°C (or higher depending on configuration)
- Communication: Compatible with system interfaces (e.g., Modbus / RS-485)
- Applications
- The 3500/70M module is commonly used in:
- Reciprocating compressors
- Oil & gas processing plants
- Petrochemical industries
- Power generation facilities
- Heavy industrial machinery monitoring
- It is especially effective for detecting early mechanical faults, reducing downtime, and improving equipment reliability.
- Advantages
- Enhances machine protection and safety
- Supports predictive maintenance strategies
- Reduces unexpected shutdowns and repair costs
- Provides real-time diagnostic data for operators

Main Brand:

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•Package: Original packing with cartons
Our Main Brand
ABB, GE, Allen Bradley, Honeywell, Emerson, Bently Nevada, Prosoft, Siemens, Westinghouse, Triconex, Foxboro, ICS Triplex, Hima, Schneider, Yokogawa, Woodward, B&R, KEBA, etc
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