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Product Description

Overview

The Emerson A6125 is a dual-channel thrust position monitoring module designed for the AMS 6500 Machinery Health Monitoring System. It measures axial (thrust) displacement of rotating machinery shafts using eddy-current proximity probes, providing critical data for turbine, compressor, pump, and motor protection.

The A6125 ensures continuous monitoring of shaft axial position, enabling protection against thrust bearing wear, misalignment, and mechanical failure. Its compact plug-in design and industrial-grade construction make it suitable for harsh operating environments.

Technical Specifications

Feature Details
Model Number A6125
Manufacturer Emerson Automation Solutions
Type Dual-channel thrust position monitor
System Compatibility AMS 6500 Machinery Health Monitoring System
Function Measures axial shaft displacement (thrust position) using eddy-current probes
Channels 2 independent thrust position channels
Supported Sensors Eddy-current proximity probes (PR6422, PR6423, PR6424, PR6425) with CON 0xx drivers
Measurement Range ±2 mm to ±5 mm (depending on probe type)
Accuracy ±0.25% of full scale
Resolution 0.001 mm
Frequency Response DC to 1 kHz (displacement signals)
Standards Compliance API 670 (Machinery Protection Systems)
Analog Outputs 0/4–20 mA proportional outputs, buffered dynamic outputs (front and rear)
Isolation Channel-to-channel and channel-to-backplane
Power Supply 24 VDC nominal
Power Consumption 6 W typical
Operating Temperature –40°C to +70°C
Storage Temperature –40°C to +85°C
Humidity 5–95% non-condensing
Dimensions 3U plug-in module for AMS 6500 chassis
Weight 0.9–1.0 kg

 

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