Epro MMS3311 Speed/Key Pulse Transmitter

The Epro MMS3311 Speed/Key Pulse Transmitter is a high-performance signal conditioning module designed for precise speed measurement and key phasor detection in rotating machinery. It converts sensor signals from proximity probes or magnetic pickups into standardized outputs for monitoring and protection systems. The MMS3311 is part of Epro’s MMS3000 series and is widely used in critical turbomachinery applications, providing reliable data for condition monitoring and control systems.

With advanced filtering, accurate pulse generation, and robust noise immunity, the MMS3311 ensures dependable performance even in harsh industrial environments. Its compatibility with various vibration and speed monitoring systems makes it a key component for turbine, compressor, generator, and motor applications.

Product Specifications

Product Applications

The Epro MMS3311 is widely used in industrial environments that require accurate speed and phase reference measurements. Common applications include:

• Turbomachinery Monitoring: Provides speed and phase reference for turbines, compressors, and pumps.

• Generator and Motor Systems: Ensures accurate RPM detection and phasor signal output for control and protection.

• Condition Monitoring Systems: Supplies reliable pulse signals for vibration and performance analysis.

• Process Plants: Integrates with DCS and machinery protection systems for rotating equipment.

• Industrial Automation: Used in predictive maintenance setups to monitor machinery performance.

Product Advantages

• High Accuracy: ±0.05% full-scale accuracy ensures reliable speed and phasor measurements.

• Fast Response: <5 ms response time allows precise real-time monitoring.

• Robust Signal Conditioning: Programmable filtering reduces noise and improves measurement quality.

• Versatile Outputs: Provides multiple output formats for easy system integration.

• Built-in Diagnostics: Detects sensor faults and wiring issues to prevent data loss.

• Industrial Durability: Designed for harsh operating conditions in critical rotating machinery environments.

FAQ

1. What types of sensors are compatible with the MMS3311?

   The MMS3311 supports proximity probes and magnetic pickups for speed and key phasor detection.

2. What is the input frequency range of the MMS3311?

   It can process signals from 0.1 Hz to 20 kHz, suitable for both low and high-speed machinery.

3. Does the MMS3311 provide multiple output formats?

   Yes, it offers TTL, 0–24 V pulse, and 4–20 mA outputs for flexible integration.

4. How accurate is the speed and key phasor measurement?

   The module delivers ±0.05% of full-scale accuracy, ensuring precise data for control systems.

5. Is the module suitable for redundant monitoring systems?

   Yes, it can be configured in redundant setups within MMS3000 racks for high availability.

6. Does the MMS3311 support programmable filtering?

   Yes, it includes adjustable low-pass and high-pass filters to optimize signal quality.

7. What is the typical response time of the module?

   The MMS3311 provides a response time of less than 5 ms for real-time monitoring.

8. Is the MMS3311 designed for integration with condition monitoring systems?

   Yes, it is fully compatible with Epro MMS3000 series monitoring racks and systems.

9. Does the module include built-in diagnostics?

   It features self-monitoring and sensor fault detection for enhanced system reliability.

10. What power supply is required for the MMS3311?

    The module operates on a nominal 24 VDC power supply.