Product Short Description
Technical Specifications
- Channels: 4-channel input for proximity and seismic sensors.
- Signal Conditioning: Adjusts sensor signals to provide measurements for radial vibration, thrust position, differential expansion, eccentricity, REBAM (Rod Eccentricity Bearing Monitoring), acceleration, velocity, shaft absolute position, and circular acceptance regions.
- Alarm Comparison: Compares conditioned signals against user-configurable alarm thresholds to trigger alerts for abnormal conditions.
- Communication: Interfaces with the 3500 rack system via a backplane connection and supports Ethernet communication through the 3500/22M Transient Data Interface (TDI) module.
- Power Requirements: Compatible with the 3500 system’s power supply modules (e.g., 3500/15).
- Environmental Rating: NEMA 4/4X weatherproof enclosure for harsh environments.
- Dimensions: 241.3 mm (height) × 24.4 mm (width) × 99.1 mm (depth).
- Weight: 0.20 kg (0.44 lbs).
- Certifications: Meets API 670 standards for mechanical protection systems; optional DNV and ClassNK certificates for marine applications.
Description
Key Features
- Mechanical Protection: Continuously monitors critical parameters and triggers alarms to prevent equipment damage.
- Flexible Configuration: Software-configurable for diverse measurement types (e.g., vibration, position, acceleration).
- Seismic Monitoring: Supports seismic sensors for low-frequency vibration analysis.
- Redundancy Support: Compatible with TMR (Triple Modular Redundant) systems for high-availability applications.
- Ethernet Connectivity: Enables integration with System 1 software for advanced data analysis and predictive maintenance.
- User-Friendly Interface: LED indicators for OK, TX/RX communication, and bypass status.
Applications
- Rotating Machinery: Monitors turbines, generators, compressors, and pumps in power generation, oil & gas, and petrochemical industries.
- Mechanical Systems: Protects equipment from misalignment, imbalance, and excessive vibration.
- Seismic Analysis: Evaluates structural integrity in earthquake-prone regions or sensitive installations.
- Process Industries: Ensures safe operation in chemical processing, refining, and manufacturing plants.
Integration with 3500 System
The 3500/42M module is part of the Bently Nevada 3500 series, a modular rack-based monitoring system. It works alongside:
- 3500/22M TDI: Provides Ethernet connectivity for data logging and remote monitoring.
- 3500/25 Keyphasor Module: Synchronizes measurements with shaft rotational speed.
- Relay Modules (3500/32, 3500/33): Actuates alarms or shutdowns based on monitor outputs.
- Display Units (3500/93, 3500/94): Local visualization of monitoring data.
Compliance and Safety
- API 670: Designed to meet the American Petroleum Institute’s standard for machinery protection systems.
- Functional Safety: Available with TÜV certification for Safety Integrity Level (SIL) 3 applications.
- Hazardous Area Approvals: Optional ATEX, IECEx, and CSA certifications for use in explosive environments.
Summary
The Bently Nevada 3500/42M (140471-01) is a high-performance vibration and position monitoring module tailored for industrial machinery protection. Its multi-channel design, flexible configuration, and integration with the 3500 series make it a cornerstone of predictive maintenance strategies in critical industries. By combining real-time monitoring with programmable alarms, it helps operators avoid unplanned downtime and extend equipment lifespan.
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