Product Description

Overview

The A6312 module from EPRO (Emerson/Philips) is a high-precision dual-channel measurement unit for the MMS 6000 Series. It is engineered to calculate absolute shaft vibration by combining signals from an Eddy Current Probe and a Seismic/Velocity Sensor, providing true spatial vibration of the rotating shaft. Ideal for steam turbines, gas turbines, compressors, and high-speed fans, the A6312 is critical for preventing machinery damage and unplanned downtime.

Key Features

• Dual independent input channels for simultaneous signal processing

• Absolute shaft vibration calculation by vectorially combining displacement and seismic signals

• Continuous, wide-range frequency monitoring for low to high-speed rotational dynamics

• Sensor integrity checks with built-in self-diagnostics to prevent false trips

• Independent “Alert” and “Danger” relay outputs with configurable delay times

• Analog 0/4–20 mA outputs for integration with DCS/PLC systems

• Buffered raw signals available via SMB connectors for external vibration analysis

• LED indicators for channel status, sensor health, and limit exceedance

Technical Specifications

Applications

• Continuous absolute vibration monitoring in turbines, compressors, and pumps

• Critical machinery protection in SIL-rated or safety instrumented environments

• Early detection of misalignment, bearing wear, or unbalanced rotating elements

• Integration into DCS or PLC for automated monitoring and alarm handling

• External vibration analysis for predictive maintenance via raw buffered outputs

FAQ

Q: Why is absolute vibration measurement important?
A: It accounts for both shaft motion and flexible bearing housing movement, avoiding blind spots that relative vibration measurements could miss.

Q: Can the A6312 handle high-speed machinery?
A: Yes, it supports rotational speeds up to 65,535 RPM and a wide frequency spectrum.

Q: How does the module ensure safety?
A: Built-in sensor integrity checks, self-diagnostics, and programmable alarm/trip delays prevent false trips and ensure SIL-compliant operation.

Q: Is it compatible with other MMS 6000 modules?
A: Yes, it integrates seamlessly with other MMS 6000 system modules and software configuration tools.

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