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EPRO A6312 MMS 6000 Dual-Channel Absolute Shaft Vibration Module

EPRO A6312 MMS 6000 Dual-Channel Absolute Shaft Vibration Module

  • Manufacturer: EPRO

  • Product No.: A6312

  • Condition：in Stock

  • Product Type: Module Monitor

  • Product Origin: Germany

  • Payment:T/T, Western Union

  • Weight: 1000g

  • Shipping port: Shanghai/Yiwu/Shenzhen

  • Warranty: 12 months

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

Feature Specification
Model A6312 / MMS6312
Module Type Dual-Channel Absolute Shaft Vibration Monitor
Input A Displacement Sensor (Eddy Current, e.g., PR642x)
Input B Seismic/Velocity Sensor (e.g., PR9268)
Transducer Inputs Two independent, galvanically isolated
Input Voltage Range 0 to ±27.3 VDC
Input Resistance >100 kΩ
Input Frequency Range 0–20,000 Hz (up to 65,535 RPM)
Measurement Range Continuously configurable; 2–30 V adjustable
Sensor Power Supply Nominal -26.75 VDC, 20 mA typical, 35 mA max, short/open circuit protected
Analog Output 0/4–20 mA proportional to measured value
Pulse Output 0–20 kHz TTL for each channel
Front Panel Indicators Green/Yellow LEDs for channel status
Operating Temperature 0°C to +65°C (+32°F to +149°F)
Configuration MMS 6000 software programmable

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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