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EPRO MMS6823R
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Honeywell MN7234A2008
Honeywell MN7234A2008

EPRO MMS6823R

Product Name​
MMS6000 Dual-Channel Vibration and Proximity Module
Product Introduction​
EPRO MMS6823R is a plug-in machinery monitoring module for the MMS6000 system. It processes eddy-current proximity signals for radial vibration, shaft position, and orbit monitoring, and supports system communication, redundancy, and high-availability rack operation.
Category:
Description
Technical Specifications​
Input channels: 2 independent channels for X/Y probe configuration
Sensor compatibility: PR6422, PR6423, PR6424, PR6425, PR6426 eddy-current probes
Analog output: 0–10 V DC standard scaled output according to configuration
Communication: Profibus DP-V1 and RS485 in frontend configuration; MMS6000 internal system bus for rack integration
Power supply: 24 V DC through MMS6000 backplane
Operating temperature: -20 °C to +70 °C for supported frontend configuration; rack system temperature according to MMS6000 enclosure class
Dimensions: approximately 120 mm × 80 mm × 35 mm
Weight: approximately 0.35 kg
Hot-swap support: supported in redundant MMS6000 rack configuration
Functional Features​
Linearization of eddy-current probe characteristics, gap-voltage validation, real-time digital signal conversion, temperature compensation, crosstalk suppression between X and Y channels, redundant communication, and front status indication.
Working Principle​
Each eddy-current probe detects target distance as changes in high-frequency oscillation damping. The module converts the signal into DC gap voltage and AC vibration components, applies probe scale factor in volts per millimetre, computes displacement or orbit data, and transmits results through backplane bus or fieldbus.
Application Scenarios​
Steam and gas turbine shaft vibration monitoring, compressor rotor dynamics, generator radial position protection, machinery orbit analysis, and centralized MMS6000 condition monitoring networks.
Structural Characteristics​
Multilayer PCB, shielded signal inputs, backplane connector, galvanic isolation between sensor circuit and communication bus, metal or industrial plastic front plate, LED status display.
Installation Requirements​
Insert the module into the designated MMS6000 subrack guide rails until the backplane connector is fully seated. Connect PR642x probes with coaxial extension cables and uninterrupted shield grounding. Configure scale factor, gap voltage, and zero reference through MMS6000 configuration software. Activate Profibus or RS485 termination according to network design.
Usage Precautions​
Confirm probe model and scale factor before commissioning. Validate gap voltage, typically around -10 V DC reference according to probe type. Do not operate outside MMS6000 backplane power. Maintain shield continuity to prevent high-frequency interference. Replace only with same firmware and hardware revision in redundant systems.
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