Emerson EPRO MMS3120/022-100 Dual Channel Bearing Vibration Transmitter

General Info

• Manufacturer: Emerson EPRO
• Model Number: MMS3120/022-100
• Type: Dual Channel Bearing Vibration Transmitter
• Number of Channels: 2
• Output Signal Type: 0/4...20 mA current outputs
• Compatibility: Compatible with various epro absolute vibration transducers (e.g., PR 9268 series).

The Emerson EPRO MMS3120/022-100 Dual Channel Bearing Vibration Transmitter is engineered for precise monitoring and processing of absolute bearing vibration signals in rotating machinery. With its dual-channel capability, this transmitter is designed to accommodate seismic sensors and is ideal for applications in turbo machines, compressors, pumps, and gearboxes. The device operates effectively in harsh environments, with a temperature range of -20 °C to +65 °C and provides redundant power supply options to ensure reliability. Its compact design allows for easy integration into existing monitoring systems, while advanced limit supervision functions enhance predictive maintenance capabilities.

Features

• High Precision Measurement: The MMS3120 features dual independent channels for measuring vibrations, allowing for accurate monitoring of machine health. With a resolution that adapts to the sensor's characteristics, it ensures that critical data is captured in real time, enabling early detection of potential issues.

• Robust Environmental Design: Rated for operation in environments ranging from -20 °C to +65 °C, the transmitter is built to withstand the rigors of industrial applications. It meets IP21 standards for protection against dust and moisture, ensuring reliable performance under various conditions.

• Flexible Output Options: The transmitter provides two current outputs of 0/4...20 mA, which can be freely assigned to the measurement channels. This flexibility allows for integration with existing monitoring systems and supports the configuration of up to five function outputs for limit supervision.

• User-Friendly Configuration: Configuration is straightforward through the MMS 3910W software, which allows users to set up and customize the transmitter parameters easily. This includes defining measuring ranges, frequency response, and alarm limits, ensuring the system meets specific application needs.

• Enhanced Safety Features: With integrated module and sensor supervision, the MMS3120 continuously monitors the system's performance, detecting faults in both the sensor and transmitter electronics. This feature helps to prevent unexpected machine downtime and enhances overall operational safety.

Technical Specifications

Electrical Specifications

• Power Supply:
  • Dual redundant 24 V DC supply inputs
  • Nominal voltage: +24 V DC
  • Voltage range: +18…+31.2 V DC
  • Power consumption: Max. 6 W
• Number of Electrical Connections: 2
• Output Characteristics:
  • Two current outputs: 0/4...20 mA
  • Maximum burden: 500 Ohm
  • Open circuit and short-circuit proof.

Mechanical Specifications

• Design of the Shield: Braided shield made of tin-plated copper wires
• Dimensions:
  • PCB/EURO card format: 100 x 160 mm
  • Width: 30.0 mm (6 TE)
  • Height: 128.4 mm (3 HE)
  • Length: 160.0 mm
• Weight:
  • Net weight: approx. 320 g
  • Gross weight: approx. 450 g

Ambient Conditions

• Operating Temperature Range:
  • -20…+65 °C
• Storage and Transport Temperature Range:
  • -30…+85 °C
• Permissible Relative Humidity: 5...95%, non-condensing
• Protection Class:
  • Module: IP 00
  • Front Plate: IP 21

Functionality

• Inputs for Seismic Vibration Sensors:
  • Compatible with PR 9268/20, PR 9268/30, PR 9268/60, and PR 9268/70 sensors.
• Signal Outputs:
  • Buffered sensor signals for analysis and diagnostics, with unfiltered voltage output of ±5.0 V.

Communication Interfaces

• Standard:
  • RS 232 for configuration and data display
• Optional:
  • RS 485 bus with epro protocol V2.0
  • PROFIBUS DP

Compliance and Certifications

• EAC Approval: Yes
• RoHS Conformity: Yes
• EMC Tested: According to EN 55011 and EN 61326

Additional Information

• Applications:
  • Suitable for monitoring turbo machines, compressors, pumps, and other rotational machines.
• Configuration Software:
  • All configurations are done via MMS 3910W configuration software.