Product Overview

The EPRO MMS6120 9100-00002C-08 is a high-precision,multi-channel vibration monitoring and protection module developed by EPRO(now part of Baker Hughes,formerly PRÜFTECHNIK).Designed for continuous online condition monitoring of critical rotating machinery,the EPRO MMS6120 9100-00002C-08 serves as a core component within the MMS 6000 series machinery protection system.It provides real-time acquisition,processing,and alarming for vibration,position,speed,and temperature signals—enabling early fault detection and preventing catastrophic failures in turbines,compressors,pumps,and generators.

As a 2-channel input module with advanced signal conditioning and embedded diagnostics,the EPRO MMS6120 9100-00002C-08 supports both displacement(e.g.,eddy-current proximity probes)and velocity/acceleration sensors(via IEPE or charge inputs),making it highly versatile across industrial applications.Integrated into a modular rack-based architecture,it communicates seamlessly with the MMS 6810/6820 central processing units via a high-speed backplane,delivering SIL 2-compliant protection functions per IEC 61508.The EPRO MMS6120 9100-00002C-08 combines machine protection reliability with predictive maintenance intelligence,bridging the gap between safety shutdown systems and asset performance management.

Technical Specifications

Parameter Name Parameter Value

Product Model MMS6120 9100-00002C-08

Manufacturer EPRO(Baker Hughes)

Product Type 2-Channel Vibration Monitoring and Protection Input Module

Input Channels 2 independent channels(configurable for displacement,velocity,or acceleration)

Sensor Compatibility Eddy-current proximity probes(displacement),IEPE accelerometers,piezoelectric sensors

Signal Conditioning Anti-aliasing filter,programmable gain,DC/AC coupling,integration(for velocity)

Frequency Range 0.5 Hz to 10 kHz(configurable per channel)

Output Interface High-speed backplane to MMS 68xx CPU modules(no external fieldbus on this module)

Operating Voltage+5 V/±15 V DC(supplied via MMS 6000 chassis backplane)

Module Width 20 mm(standard MMS 6000 rail unit)

Operating Temperature 0°C to+60°C

Certifications IEC 61508 SIL 2,CE,UL,CSA

Main Features and Advantages

Dual-Function Signal Processing:The EPRO MMS6120 9100-00002C-08 simultaneously delivers machinery protection and condition monitoring from the same sensor inputs.While one path triggers hardwired relay outputs for overspeed or excessive vibration(SIL 2 certified),the other streams high-resolution waveform and spectral data to plant historians or asset management platforms—eliminating the need for duplicate sensors.

Universal Sensor Support:Each channel on the EPRO MMS6120 9100-00002C-08 can be independently configured for different sensor types.For example,Channel 1 may monitor shaft displacement using a 24 V DC powered proximity probe,while Channel 2 measures casing vibration via an IEPE accelerometer—all within a single module.This flexibility reduces inventory complexity and simplifies retrofitting legacy machines.

Advanced Diagnostic Capabilities:Built-in sensor health monitoring detects open circuits,short circuits,and power supply faults in real time.The EPRO MMS6120 9100-00002C-08 also performs automatic sensor bias voltage checks for eddy-current probes,alerting operators to probe degradation before measurement drift affects protection accuracy.

High-Fidelity Data Acquisition:With 24-bit A/D conversion and sampling rates up to 51.2 kS/s per channel,the EPRO MMS6120 9100-00002C-08 captures transient events such as blade pass frequencies,rubs,or bearing defects with exceptional clarity.Time-synchronized data across multiple modules enables advanced diagnostics like orbit plots and phase analysis when used with the MMS 68xx system.

Application Field

The EPRO MMS6120 9100-00002C-08 is extensively used in industries where unplanned downtime of rotating equipment carries severe operational and financial consequences.In power generation plants,it monitors steam and gas turbine shaft vibration and eccentricity during startup,operation,and coast-down—ensuring compliance with API 670 standards.Similarly,in oil&gas refineries and LNG facilities,the EPRO MMS6120 9100-00002C-08 protects centrifugal compressors handling high-pressure hydrocarbons,providing early warning of imbalance,misalignment,or bearing wear.

In the chemical and petrochemical sector,the module safeguards large process pumps and agitators operating under corrosive or high-temperature conditions,where mechanical integrity is paramount.Wind turbine OEMs and operators also deploy the EPRO MMS6120 9100-00002C-08 in nacelle-based monitoring systems to detect gearbox and generator faults before they escalate.Because it integrates directly into a certified machinery protection system,the EPRO MMS6120 9100-00002C-08 is equally suited for new installations and brownfield upgrades where reliability,regulatory compliance,and data richness are non-negotiable.

Related Products

MMS6810:Central processing unit for MMS 6000 system—aggregates data from MMS6120 9100-00002C-08 modules

MMS6110:Single-channel version of the same input module family

MMS6210:4-channel temperature/resistance input module for RTD/PT100 monitoring

MMS6310:Speed and phase reference input module for keyphasor and tachometer signals

MMS6410:Relay output module for trip and alarm activation

PR9268/20:EPRO eddy-current proximity probe—commonly paired with MMS6120 9100-00002C-08

MMS 5000:Legacy EPRO system—predecessor platform;MMS6120 9100-00002C-08 is not backward compatible

Installation and Maintenance

Pre-installation preparation:Before installing the EPRO MMS6120 9100-00002C-08,verify compatibility with the MMS 6000 chassis firmware and ensure the backplane power rails are de-energized.Confirm sensor types and wiring schematics match the intended configuration(e.g.,displacement vs.IEPE).Use shielded,twisted-pair cabling for all field connections,with shields grounded at the chassis end only to avoid ground loops that could distort low-level vibration signals.

Maintenance recommendations:Schedule periodic verification of the EPRO MMS6120 9100-00002C-08 using the built-in test functions in the MMS software suite,including sensor bias checks and simulated alarm thresholds.Inspect terminal blocks for corrosion or loosening,especially in high-humidity environments.If replacing the module,ensure the new unit is programmed with identical channel settings—configuration is stored in the CPU,but physical calibration(e.g.,probe gap)must be reconfirmed.Keep spare EPRO MMS6120 9100-00002C-08 units in dry,static-safe storage to preserve electronic integrity.

Product Guarantee

Each EPRO MMS6120 9100-00002C-08 we provide is rigorously tested for signal accuracy,channel isolation,backplane communication,and alarm response.Units are either new surplus from authorized distribution channels or professionally refurbished to original factory specifications,complete with traceable serial numbers and compliance documentation.We offer a 12-month warranty and full technical support for integration into existing MMS 6000 systems.In critical machinery protection,precision and reliability are inseparable—and our EPRO MMS6120 9100-00002C-08 delivers both with unwavering consistency.

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