EPRO MMS 6220 Dual Channel Shaft Eccentricity Monitor

Description

The MMS 6000 Machine Monitoring System component processes relative radial shaft vibration signals from eddy current sensors. It is specifically designed for constructing turbine protection systems and provides signals for analysis and diagnosis systems to be further processed in field bus systems.

Features

• Integrated microcontroller.
• Compatible with epro eddy current sensors of the PR 642X series.
• Records and stores characteristic values from the last run-up or run-down.
• Self-test functions for electronic circuits and transducers.
• RS 232 interface for configuration and reading out measuring results.
• RS 485 interface for connection to epro’s MMS 6850 analysis and diagnosis system or host computers.

Technical Specifications

• Sensor Inputs: Two independent signal inputs for eddy current measuring chains.
• Sensor Supply: Each sensor has its own output buffer, galvanically isolated from all system voltages and the power supply of the monitor.
• Input Voltage Range: -1…-23 V DC.
• Signal Frequency Range: 0.017…70 Hz (1.02…4200 rpm).
• Key Pulse Input: One pulse per revolution; input for system control.
• Control Inputs: Common logic inputs for both channels.
• Voltage Inputs: Two inputs, one for each channel, ranging from 0 to 10 V.
• Input Impedance: ≥100 kOhm.
• Resolution: 10 bit.