Sensonics Unit Provides Cost-Effective Protection for Smaller Machinery

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Protecting smaller, yet critical items of a rotating plant is becoming increasingly important as the focus for industry is to continually improve efficiencies, reduce energy consumption, and eliminate downtime, according to condition monitoring specialist Sensonics Ltd., U.K. Typically, the higher cost of more sophisticated protection systems can be difficult to justify for smaller machinery operating on less critical applications, although the requirement for monitoring still needs to be addressed, the company notes.

The solution is cost-effective and compact machinery protection monitoring, which is why Sensonics developed its DN26 G3 protection monitor. The new unit provides compact and cost-effective protection for smaller plant and equipment such as, pumps, fans, motors, centrifuges, turbines, or any item of small to medium industrial machinery.

The high-performance Din rail mountable unit is capable of monitoring two channels of bearing vibration, shaft vibration, or shaft position, and offers fully programmable signal conditioning with a range of measurement algorithms and sensor options. In addition, the DN26 G3 offers a dedicated speed monitor channel that can also be utilized as a phase reference for harmonic analysis of the vibration signals. The unit is designed for optimum flexibility. As a universal module (single hardware platform), it is field upgradable and can be programmed for any of the measurement options detailed above. It is available with mains or +24V power supply options.

The sensor interface is programmable to accept IEPE type accelerometers/velometers, proximity probes (API 670 standard), and active/passive speed probes.

All sensor signals are available via a buffered interface that provides the option of further detailed analysis if required. Three alarm relays are available as standard (expandable to up to seven relays via a digital interface). One is dedicated to indicate module and sensor integrity, while the other two relays are fully programmable across the alarm criteria selected. All three input channels measured values are available via a 4-20 mA interface.

The unit is available with Ethernet communications as standard, permitting configuration either locally or remotely through the inbuilt web server and offering Modbus over TCPIP for connecting measured data to other plant wide systems. The DN26-G3 features a built-in intuitive color LCD display and menu drive facility providing various display modes including FFT analysis of the dynamic channels and an alarm historian with real time logging capability.

More information is available online.

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