The EPRO MMS6250/A6250 is a dedicated high-level analog input module for machinery monitoring systems. This module reliably conditions and digitizes signals from vibration sensors and transmitters, such as the PR6423 series eddy current probes. It serves as a critical interface within the EPRO MMS 6000 system framework, converting raw analog data into precise digital information for analysis and protection.
Signal Processing and Channel Functionality
This module typically accepts high-level voltage inputs, for example signals ranging from -20 to +20 volts, directly from proximity sensors. Each channel incorporates precision analog-to-digital conversion with high resolution, ensuring accurate representation of machinery vibration and position. Furthermore, the module provides configurable filtering and scaling for each input, allowing customization to specific sensor types and measurement ranges.
The MMS6250/A6250 communicates processed data to the system’s central processing unit via a high-speed backplane bus. Consequently, it enables real-time monitoring and immediate activation of alarm or trip functions based on the incoming signals.
Physical Design and System Integration
The module features a robust, compact metal housing designed for installation in a standard MMS 6000 system rack. Its front panel includes status LEDs for power, communication, and individual channel activity, facilitating quick visual diagnostics. The unit connects to field sensors through a removable terminal block or rear connector, ensuring secure and reliable wiring.
The module operates using power supplied directly from the system rack, with no internal batteries or energy storage components required. This design simplifies maintenance and guarantees consistent operation within the system’s specified environmental limits.
Detailed Technical Specifications
| Parameter Category | Specification |
|---|---|
| Manufacturer | EPRO (Baker Hughes) |
| Model Number | MMS6250/A6250 |
| Product Series | MMS 6000 |
| Module Type | High-Level Analog Input Module |
| Primary Function | Signal Conditioning & Digitization for Vibration/Position Sensors |
| Number of Channels | Typically 4 or 8 independent channels |
| Input Signal Range | -20 V to +20 V (High-Level, e.g., from PR6423) |
| Input Impedance | High, typically > 100 kΩ |
| Analog-to-Digital Resolution | 16-bit or higher |
| Sampling Rate | Configurable, up to several kHz per channel |
| Communication Interface | Proprietary backplane bus to MMS 6000 CPU |
| Power Supply | From system rack (e.g., +5 V, ±15 V) |
| Power Consumption | Typically < 10 Watts |
| Operating Temperature | 0°C to +60°C (Rack mounted) |
| Connection Type | Removable terminal block or rear-mounted D-Sub |
| Dimensions (HxWxD) | Standard 3U or 6U rack module dimensions |
| Compatible Sensors | EPRO PR6423, PR9268, and other high-output transducers |
Details
| Weight | 0.2 kg |
|---|---|
| Dimensions | 150 × 100 × 50 mm |
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