Description

Product Description

The Bently Nevada 3500/40M Position Monitor is a rack-based measurement module within the 3500 Machinery Protection System, designed to monitor shaft position and related vibration behavior in rotating machinery. It is typically deployed in critical asset protection systems where continuous displacement and vibration tracking are required for operational safety and predictive maintenance.

This module integrates directly into the 3500 system rack and is commonly used in conjunction with other condition monitoring modules for turbines, compressors, and large rotating equipment operating in demanding industrial environments.

Measurement & Channel Architecture

• Number of Channels: 4 independent monitoring inputs

• Resolution: 16-bit high-resolution signal processing

• Measurement Type: Radial or axial shaft position monitoring (application dependent)

• Signal Processing: Digital filtering with frequency separation capability

• Data Retention: Non-volatile memory for configuration persistence

Each channel supports independent configuration, allowing flexible monitoring of multiple machine points within a single rack module.

Alarm & Protection Functions

• Dual threshold alarm structure: Alert and Danger levels

• Adjustable delay timers to reduce transient false alarms

• Channel-specific alarm configuration

• Integrated system diagnostics for sensor and signal validation

• Continuous self-checking of module health and input integrity

System Integration & Communication

• Compatible with Bently Nevada 3500 rack architecture

• Supports integration with plant control systems via:

• Modbus communication

• Ethernet-based connectivity (via system-level gateway)

• Relay-based output signaling

• Designed for seamless expansion within existing 3500 monitoring platforms

Electrical & Physical Specifications

• Typical Module Weight: 0.55 kg

• Dimensions: 24.3 × 4.6 × 15.5 cm

• Power Supply: Provided via 3500 rack backplane

• Operating Condition: Continuous duty industrial monitoring

Environmental Ratings

• Operating Temperature: –30°C to +65°C (typical 3500 system range)

• Storage Temperature: –40°C to +85°C

• High immunity to vibration and electromagnetic interference

• Designed for harsh industrial installations including offshore and refinery environments

Functional Highlights

• High-accuracy position and vibration monitoring

• Real-time signal acquisition and processing

• Rack-based modular architecture for scalable system design

• Built-in diagnostics for predictive maintenance support

• Supports condition-based monitoring strategies in critical machinery

Application Areas

• Gas and steam turbine shaft monitoring

• Centrifugal compressor vibration and position tracking

• Pump radial displacement monitoring

• Power generation rotating equipment protection

• Oil & gas rotating machinery condition monitoring

FAQ

Q1: What type of measurement does the 3500/40M provide?
It primarily measures shaft position and related vibration displacement in rotating machinery systems.

Q2: How many input channels are available?
The module supports four independent monitoring channels with separate configuration.

Q3: Can it integrate with plant control systems?
Yes, it supports integration through Modbus, Ethernet gateways, and relay outputs depending on system architecture.

Specifications

• Brand: Bently Nevada

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems