Epro MMS3120/022-000 Dual Channel Bearing Vibration Transmitter

Epro MMS3120/022-000 Key parameters

Modular Integration & Sensor Dynamics

The MMS3120/022-000 integrates into the MMS 3000 monitoring system, designed for turbomachinery and industrial rotating equipment. It supports dual-channel inputs for electrodynamic vibration transducers and processes absolute bearing vibrations with a typical displacement range of ±2 mm (±1% accuracy). Its 32-bit RISC processor (100 MHz clock speed) enables real-time vibration analysis, paired with 128 MB RAM and 256 MB flash memory for data storage.

Signal Processing & Output Configuration

Analog Outputs: Two isolated 4–20 mA current channels (fault-indicating 0 mA) for vibration velocity/displacement, configurable via MMS 3910W software.

Dynamic Response: Covers 1 Hz–10 kHz for low-frequency mechanical wear detection and high-frequency transient analysis.

Digital Interfaces: RS-232/485 and Ethernet for integration with PLCs or DCS/SCADA systems, enabling MODBUS RTU/TCP protocols.

Power & Redundancy

Power Inputs: Dual 24 V DC supplies (±10% tolerance) with redundancy and diode decoupling for uninterrupted operation during voltage fluctuations.

Power Consumption: ≤24 mA under standard load, optimized for energy efficiency.

Diagnostic & Safety Protocols

Self-Monitoring: Continuously checks sensor integrity (e.g., cable breaks), module electronics, and phase alignment, triggering OK status alerts via front-panel indicators .

Protection Features: Includes input overload protection, output current short-circuit safeguards, and transient voltage suppression for fault-tolerant operation [[69][79]].

Environmental & Mechanical Resilience

Operating Range: Functions at -25°C to +60°C with storage/transport tolerance of -40°C to +85°C, suitable for harsh industrial environments.

Vibration Resistance: Complies with VDI 2056 standards, enduring 20 m/s² vibrations (55–150 Hz) and 98 m/s² mechanical shocks.

IP65 Protection: Dust-tight and water-jet resistant enclosure for reliable performance in exposed installations.