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Charlotte Stonestreet
Managing Editor |
Home> | AUTOMATION | >Condition Monitoring | >Cost-effective vibration measurement for smaller machinery |
Cost-effective vibration measurement for smaller machinery
26 October 2022
THE COST of sophisticated vibration condition monitoring can be difficult to justify for monitoring smaller rotating plant and equipment. SENSONICS offers a solution with the DN26 G3 machine protection monitor, a highly effective stand-alone monitor which complements the company's rack-mounted products.

The dual channel din rail mountable DN26G3 unit provides monitoring of bearing vibration, shaft vibration, or shaft position with fully programmable signal conditioning and includes a range of measurement algorithms and sensor options. The unit is designed for optimum flexibility; as a universal module (single hardware platform) and is field upgradable and fully programmable.
Special protection options include slow rotation vibration monitoring down to 0.2Hz and narrow band filter measurements for specific vibration signatures. In addition the unit offers a dedicated speed monitor channel which can also be utilised as a phase reference for further harmonic analysis of the vibration signals. 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 which 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 dedicated to indicate module and sensor integrity. The other two relays are fully programmable across the alarm criteria selected and all three input channels measured values are available via a 4-20mA interface.
The unit is available with Ethernet communications as standard, permitting configuration either locally or remotely through the in-built webserver and offering Modbus over TCPIP for connecting measured data to other plant wide systems. The DN26-G3 features a built-in intuitive colour LCD display and menu drive facility providing various display modes and an alarm historian with real time logging capability.
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