EMERSON A6120 Case Seismic Vibration Monitor

EMERSON A6120 Case Seismic Vibration Monitor

Product Overview

The A6120 Shell Seismic Vibration Monitor is a key product in EMERSON's CSI 6500 Machinery Health Monitor series. It combines advanced sensing technology and signal processing algorithms to accurately monitor shell seismic vibration and drive alarms and relays by comparing vibration parameters with alarm setpoints to reliably protect machinery.

Product Features

High-precision monitoring:

A6120 adopts electric, internal spring and magnet velocity output type sensors, which can monitor shell seismic vibration with high accuracy.

Dual-channel design:

The product has dual-channel inputs that can simultaneously monitor vibration at two different locations, improving the efficiency and accuracy of monitoring.

Easy integration:

The A6120 has good compatibility and can be easily integrated into existing machinery health monitoring systems for centralised management and analysis of vibration data.

Remote Configuration and Monitoring:

Supports remote selection of limit doubling and trip bypass for easy remote configuration and monitoring.

Compliance with international standards:

The product is fully compliant with API 670, ensuring reliability and performance in line with internationally recognised standards and specifications.

Applications

The A6120 casing seismic vibration monitor is used in a wide range of applications, including critical rotating machinery such as steam turbines, gas turbines, compressors and water turbines. Casing measurements are particularly common in nuclear power applications. In addition, it is suitable for a variety of industrial scenarios where casing seismic vibration monitoring is required.

Technical Specifications

The following are some key technical specification parameters:

Input type: electrodynamic (electromechanical) transducer, differential input.

Number of inputs: Two independent channels.

Input resistance: >100 kΩ.

Input voltage range: -5 to +15 VDC.

Input frequency range: Lower cut-off frequency 1 or 5 Hz, upper cut-off frequency 50 to 2000 Hz adjustable.

Measurement Range: Continuously adjustable via configuration software, Vrms (metric) = 5 to 100 mm/s (±25 to ±500 μm), Vrms (imperial) = 0.197 in/s to 3.937 in/s (±0.984 mils to ±19.685 mils).

Output types: 0/4-20 mA output, 0-10 V output, etc.

Product Advantages

Improve equipment reliability:

Through real-time monitoring of shell seismic vibration, potential faults are detected in time, improving the reliability and stability of the equipment.

Reduce maintenance costs:

Accurate vibration monitoring helps predict equipment maintenance cycles and maintenance needs, reducing unnecessary maintenance costs and time.

Improve productivity:

Timely detection and handling of equipment faults avoids equipment downtime or damage, thus increasing productivity.

Installation and Maintenance

Environmental Conditions:

Ensure that the module is installed within the recommended temperature and humidity ranges and avoid direct exposure to water, oil, dust or electromagnetic interference.

Power Requirements:

Use a stable power supply to avoid damage to the module from voltage fluctuations.

Signal Cable Connection:

Connect the signal lines correctly to ensure the accuracy and stability of signal transmission.

Software Configuration:

Correctly configure the software parameters of the module according to the system requirements to ensure compatibility with other parts of the control system.

Maintenance and Inspection:

Perform regular maintenance and inspection of the module, including cleaning and checking the contact status of the connectors.

Precautions

Operator Training:

Operators should receive proper operation and maintenance training to avoid malfunctions or safety accidents caused by incorrect operation.

Technical Documentation and Safety Guidelines:

The technical documentation and safety guidelines provided by the manufacturer should be read and understood in detail before installation and use.

Compliance with safety regulations:

Observe all relevant safety procedures to ensure personal safety, especially when handling high-pressure or high-speed rotating equipment.