Technical Specifications
| Parameter | Specification |
| Manufacturer | EPRO (Emerson) |
| Model Number | MMS 6120 |
| Type Designation | 9100-00002 |
| Function | Dual Channel Bearing Vibration Monitoring |
| Sensor Inputs | 2 Electrodynamic velocity sensors (PR9266/.. to PR9268/..) |
| Frequency Range | 10 Hz to 1000 Hz (Standard) / 5 Hz to 1600 Hz |
| Measuring Range | 0 to 100 mm/s (Continuously adjustable via software) |
| Signal Outputs | 0/4 to 20 mA and 0 to 10 V DC |
| Communication | RS 232 (Front) / RS 485 (Rear strip) |
| Power Supply | 18 to 31.2 V DC (Redundant inputs) |
| Operating Temp | 0°C to +65°C |
The MMS 6120 is a high-reliability dual-channel monitor designed for the absolute bearing vibration oversight of rotating machinery such as steam and gas turbines, pumps, and fans. Operating as part of the MMS 6000 system, the module processes signals from electrodynamic velocity transducers to provide real-time protection and predictive maintenance data. It features comprehensive self-checking facilities, redundant power inputs, and programmable alarm limits, ensuring stable performance in critical industrial environments while allowing for configuration and data readout through integrated serial interfaces.
Product Q&A
Q: Can the MMS 6120 be hot-swapped while the monitoring system is live? A: Yes, the module is designed to be replaced during operation without interrupting the function of other modules in the rack, provided the system backplane supports modular exchange.
Q: What is the primary difference between the MMS 6120 and the MMS 6110? A: The MMS 6120 is specifically tailored for bearing (absolute) vibration using velocity sensors, whereas the MMS 6110 is typically used for shaft (relative) vibration monitoring using displacement sensors.
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