Bently Nevada 1034549-20 | Dual-Channel Proximitor Input Monitor | Signal Conditioning for Vibration & Position Monitoring

Product Description:

The Bently Nevada 1034549-20 is a high-precision Dual-Channel Proximitor Input Monitor designed for use within the FieldMonitor 1701/15 system. This specialized signal conditioning module interfaces with eddy-current proximity probes to monitor critical machinery, such as gas turbines, centrifugal compressors, large pumps, and fans, in industrial settings. It processes analog signals to measure shaft displacement, vibration, and position with exceptional accuracy, ensuring reliable machinery protection.

Key Features & Functions:

1. Signal Conditioning & Linearization:

The 1034549-20 module performs real-time amplification, filtering, and digitization of input signals from proximity probes. It accurately converts these raw signals into a linear output that represents the actual physical displacement of rotating shafts, ensuring precise monitoring even in harsh industrial environments.

• Input Signal: Proportional voltage from eddy-current proximity probes (e.g., 3300 XL 8mm).

• Linearization: Ensures that the output voltage directly correlates to shaft displacement.

2. Integrated Alarm Logic:

The module is equipped with built-in alarm logic, allowing for customized trip settings and enhanced system protection. It includes two alarm setpoints—Alert and Danger—to monitor critical machine parameters and prevent equipment damage.

• Alarm Types: Alert (Alarm 1) and Danger (Alarm 2).

• Alarm Delay: Programmable from 0.15 to 20 seconds.

• Hysteresis: Set at 0.5% of full-scale to reduce false alarms near the setpoint.

• Trip Multiply: Supports 1.5x, 2x, or 3x setpoint multiplication during machine start-up to avoid nuisance trips.

3. Embedded Self-Diagnostics:

The 1034549-20 continuously monitors its internal health and the integrity of the connected proximity probes. If a probe wire is cut or the sensor malfunctions, the module triggers a NOT OK status to alert operators immediately, ensuring accurate and reliable readings.

• Self-Diagnostics: Monitors module and probe integrity.

• Fault Detection: Immediate NOT OK status on probe or wiring failure.

4. Compact and Versatile Application:

This module offers flexibility and high performance for monitoring key machinery in diverse applications. It’s commonly used in power generation, petrochemical plants, and other critical industries, offering a direct connection to Bently Nevada's System 1 software for integrated machinery protection and analysis.

• Typical Applications: Gas and Steam Turbines (especially Solar Turbines), centrifugal compressors, large pumps, and industrial fans.

• Distributed Protection: Designed for use in the FieldMonitor 1701/15 system, providing local signal processing and alarm functionality.

Technical Specifications:

Installation and Setup:

The 1034549-20 module integrates seamlessly into the FieldMonitor 1701/15 system for dual-channel vibration and position monitoring. It connects directly to eddy-current proximity probes, and wiring to the module is straightforward.

• Power Supply: 24 VDC, usually supplied by the control system.

• Wiring: Requires careful consideration for probe wiring and grounding to ensure accurate readings.

Key Benefits:

• Precision Monitoring: Ensures high-accuracy measurement of vibration, thrust position, and shaft displacement.

• Flexible Alarm Configuration: Provides programmable alarm settings and hysteresis for customized protection.

• Industrial Durability: Built for high-performance monitoring in demanding environments such as gas turbines and centrifugal compressors.

• Integrated Diagnostics: Continuously checks probe integrity and module health to prevent false readings.

Applications:

• Gas and Steam Turbines: Particularly useful in Solar Turbines for real-time vibration and position monitoring.

• Centrifugal Compressors: Ensures optimal operation by monitoring the radial vibration and axial displacement of the shafts.

• Large Pumps and Fans: Used extensively in power and petrochemical plants for protecting rotating machinery.