Emerson A6312/06 dual-channel speed & keyphasor module for AMS6500, API670 standard, monitors rotation speed and phase signal for turbomachinery protection.

Product Overview

• Part No: A6312/06
• Brand: EMERSON / EPRO

• Category: Dual Channel Speed & Key Phase Monitor Module A6312/06 is a 3U plug-in module for the AMS6500 machinery health monitor system and complies with API670. It receives pulse signals from eddy current or Hall-effect sensors to measure rotating speed, rotation direction and keyphasor reference signal. The module supports adjustable alarm thresholds, buffered sensor signals and 4–20mA analog outputs for DCS interconnection. Front panel LEDs show operating and alarm status. Hot-swap function enables online replacement without disabling machine protection. It is widely used for steam turbines, gas turbines and compressors.

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Core Features

• Dual channels for speed and key phase measurement
• Compatible with eddy-current probes and Hall-effect sensors
• Configurable alarm thresholds with delay and hysteresis
• Buffered signal output and 4–20mA proportional analog output
• Sensor fault diagnostics for open and short circuit
• Hot-swappable for online maintenance

• 3U form factor for AMS6500 rack installation

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Technical Specifications

• Channels: 2 independent measuring channels
• Frequency range: 0–20 kHz
• Power supply: 24VDC
• Operating temperature: 0°C ~ +65°C
• Storage temperature: -30°C ~ +85°C

• Protection Class: IP20 inside control cabinet

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Compatibility & Application

• Fits Emerson AMS6500 monitor rack
• Matches PR series eddy probes and PR9376 Hall sensors
• Applied in power and petrochemical plants for turbomachinery overspeed monitoring and vibration analysis