EPRO MMS6120

Operating Parameters

Input Voltage: The electric speed sensor will operate within an input voltage range of -5…+15 Vdc, while the entire module itself will operate within a voltage range of 0 to 55 Vdc.

Temperature Range: The EPRO MMS6120 can operate within a temperature range of -40 to 85 °F (-40 to 29.4 °C) to accommodate a variety of industrial environment applications. The module is suitable for frequencies of 14 to 60 kHz and is mainly used to measure vibrations in various rotating machinery. Resolution is maintained as a derived signal from the very limited sources mentioned here in order to provide absolute reliability and measurement accuracy for bearing vibration monitoring.

Sensor Input: The EPRO MMS6120 provides two independent electric speed sensor signal inputs - SENS 1H(z8)/SENS 1L(z10) and SENS 2H(d8)/SENS 2L(d10): can be used with EPRO's PR926X series of electric sensors.

Output Type: The module provides a variety of signal outputs: two current outputs, I1+(z18)/I1-(b18) and I2+(z20)/I2-(b20), configurable as 0-20mA or 4-20mA; two 0-10V voltage outputs, EO 1(d14)/EO 2(d16); two 0-20Vpp dynamic signal outputs, AC1(z14)/AC2(z16), which can be used for spectral analysis. The device has built-in RS-232/485 ports to facilitate field configuration and communication, allowing users to set up and view remote monitoring modules.

Product Features

Measures very low frequency bearing vibration: Other aspects include the ability to receive online data to diagnose the operating performance of turbomachinery such as turbines, compressors and fans. The signals generated by the module are able to be changed to produce standardized output signals from the sensor, which is inherently easy to interface with other control and monitoring systems, allowing the module to adapt to existing industrial automation settings.

Alarm and safety functions: Each channel can be configured with alarm and threat limits for each channel. Hysteresis is added so that small parameter fluctuations close to the limit values do not cause false alarms. While it has four alarm outputs per channel, it keeps the user informed of wear caused by vibrations.

Maximum self-test and diagnostic capabilities: With extensive self-test capabilities, including built-in sensor self-test, the unit constantly checks the validity of the measurement loop and its health. It detects simple short circuits or breaks in the sensors and indicates a complementary error in the event, thus ensuring the user the reliability of the monitoring system.

Data storage and analysis: The module allows the storage of the most recently recorded start/stop values, which can be retrieved and analyzed later on a suitable computer. This provides a post-mortem analysis of the behavior of any machine under transient operating conditions.

Configuration and parameter setting: With its built-in microprocessor, the EPRO MMS6120 allows the user to configure the operating mode and parameters via a portable computer on site or even via a remote communication bus. This provides greater flexibility in customizing the module to different application requirements.

Scope of application

The EPRO MMS6120 has been widely accepted by all industries for monitoring/protection of turbomachinery. Suitable for steam turbines, gas turbines, water turbines, compressors, fans, centrifuges, gearboxes and blowers. The EPRO MMS6120 continuously monitors vibration levels in power plant generators and other rotating equipment to ensure safe and efficient operation. In the chemical and petrochemical industries, it is used to observe the condition of pumps, compressors and other critical machinery to avoid unexpected downtime and failures. In addition, its applications range from metallurgy to cement manufacturing, including automotive manufacturing, where uninterrupted operation of turbomachinery is critical.