The Epro MMS3120 Dual Channel Bearing Vibration Transmitter is a precision module designed for continuous monitoring of bearing vibration in rotating machinery. As part of the Epro MMS3000 series, it provides two independent vibration measurement channels, making it ideal for monitoring multiple bearings simultaneously. The MMS3120 converts raw signals from proximity probes or accelerometers into standardized outputs for integration with machinery protection and condition monitoring systems.

Engineered for critical turbomachinery applications, the MMS3120 offers advanced signal processing, high accuracy, and robust noise immunity. It is widely used in turbines, compressors, motors, and generators where reliable bearing vibration monitoring is essential for safe and efficient operation.

Product Specifications

Product Applications

The Epro MMS3120 is designed for industrial applications that require precise bearing vibration measurement and protection. Typical uses include:

• Turbomachinery Monitoring: Continuous monitoring of turbine and compressor bearings.

• Generator and Motor Systems: Detects bearing faults, imbalance, and wear in large motors and generators.

• Condition Monitoring Systems: Provides real-time vibration data for diagnostics and trend analysis.

• Machinery Protection: Integrates with trip systems to prevent damage from excessive vibration.

• Oil & Gas and Power Generation: Widely deployed in critical rotating equipment in harsh industrial environments.

• Predictive Maintenance: Helps reduce unplanned downtime by identifying early signs of bearing failure.

Product Advantages

• Dual-Channel Monitoring: Measures vibration from two independent bearings simultaneously.

• High Accuracy: ±0.1% of full scale for reliable and repeatable measurements.

• Fast Response: <5 ms response time supports real-time protection of critical machinery.

• Multiple Output Formats: Provides 4–20 mA, buffered raw sensor signals, and alarm relays.

• Built-In Diagnostics: Self-test, wiring check, and sensor fault detection increase system reliability.

• Industrial-Grade Design: Built to operate in demanding industrial conditions with high noise immunity.

FAQ

1. What types of sensors can the MMS3120 work with?

   It supports both proximity probes and accelerometers for displacement and velocity measurements.

2. How many vibration channels does the MMS3120 provide?

   It offers two independent channels for simultaneous monitoring of multiple bearings.

3. What is the measurement range for vibration monitoring?

   The MMS3120 supports 0–1000 µm displacement and 0–50 mm/s velocity measurements.

4. What frequency range can the transmitter process?

   The module handles signals between 0.5 Hz and 10 kHz, covering most industrial vibration applications.

5. What types of output signals are available?

   It provides 4–20 mA outputs, buffered raw signals, and alarm relay contacts.

6. Does the MMS3120 have built-in diagnostics?

   Yes, it includes self-testing, sensor fault detection, and wiring integrity checks.

7. Is the MMS3120 compatible with Epro MMS3000 systems?

   Yes, it is fully compatible with MMS3000 racks and condition monitoring setups.

8. What is the accuracy of vibration measurements?

   The transmitter provides ±0.1% of full scale for precise monitoring and analysis.

9. Is the MMS3120 suitable for predictive maintenance applications?

   Yes, it provides early fault detection, making it ideal for predictive maintenance programs.

10. Which industries commonly use the MMS3120?

    It is widely used in oil & gas, power generation, chemical plants, and heavy industrial machinery applications.