3500/15-05-05-00 Bently Nevada Proximitor & Seismic Monitor

Product Overview

The Bently Nevada 3500/15-05-05-00 functions as a high-integrity vibration monitor within the 3500 Machinery Protection System. This module executes continuous measurement and real-time signal processing for critical rotating assets, including turbines, compressors, and high-pressure pumps. It accepts inputs from both proximity probes and accelerometers to detect unbalance, misalignment, and mechanical faults. 

Technical Specifications

The 3500/15-05-05-00 utilizes advanced conditioning to handle displacement, velocity, and acceleration signals simultaneously.

Engineering Advantages

• Deterministic Fault Detection: The 3500/15-05-05-00 processes vibration data locally on the module. This hardware-based logic ensures that shutdown relays trigger within milliseconds of reaching a "Danger" setpoint, bypassing network latency to prevent catastrophic equipment damage.

• Redundant Power Stability: The module draws power directly from the 3500 rack backplane. Its internal design accommodates the dual-redundant power supplies typical of 3500 racks, ensuring continuous monitoring even during a primary power source failure.

• Exceptional Noise Immunity: Integrated hardware filters and precision signal conditioning reject electromagnetic interference (EMI) from large motor starters and VFDs. This ensures clean, stable vibration data in the harshest industrial electrical environments.

• Comprehensive Self-Diagnostics: The module constantly monitors the "OK" status of field transducers. It differentiates between a sensor failure (open/short circuit) and a genuine mechanical vibration alarm, preventing costly nuisance trips.

• Seamless API 670 Integration: This module provides the accuracy, reliability, and fail-safe relay outputs required for high-risk machinery protection applications in the oil, gas, and power generation sectors.

FAQs

• What is the primary function of the 3500/15-05-05-00?

  It monitors the mechanical vibration levels of rotating equipment and provides physical relay outputs (Alarm/Trip) to protect the machine from excessive unbalance or bearing damage.

• Can I replace this module while the 3500 rack is running?

  Yes. The 3500/15-05-05-00 is hot-swappable. However, removing the module interrupts the protection loop for its associated channels. Always follow site-specific safety protocols and ensure redundant protection is active before removal.

• Does it support both proximity and seismic inputs?

  Absolutely. The module is highly versatile; it processes signals from proximity probes (displacement) and accelerometers or velocity sensors (seismic), allowing for comprehensive monitoring of both shaft and casing vibration.

• Is this a complete kit?

  This model typically includes the main monitor module (106M1079-01) and the corresponding I/O module (106M1081-01), providing a complete interface from the field wiring to the rack backplane.