Thursday, April 02, 2009

Sensonics Unveils Signal Conditioning Unit


Sensonics has introduced the Sentry G3 machinery protection monitor, a high-performance signal conditioning unit. The G3 monitor builds upon the established range of Sentry protection systems developed by Sensonics and is designed to be a flexible and feature-rich turbine supervisory system.

It provides a universal platform for the interfacing of various sensor types in compliance with the API 670 standard. Each of the units' four channels can be independently programmed to provide continuous monitoring and protection across a broad spectrum of measurement regimes, including vibration, expansion, temperature and speed. Sentry G3 utilises the latest DSP technology, so once a channel is set up and running, the resulting alarm relay and analogue output facilities are independent from the remaining module functionality, ensuring a scalable, high-integrity configuration.

The unit has an integral colour LCD display and drive facility that provides immediate viewing and access to the machines parameters. Several modes of display are available to suit specific applications, such as an alarm historian and parameter trending per channel. It also provides the necessary power source for the selected transducer, providing for two (ICP type) or three-wire accelerometer variants, +/-24V proximity probe systems, LVDTs and a range of speed and temperature sensors.

Each transducer signal is buffered and available via the front panel analogue connection arrangement, while a USB interface is provided for programming the unit and for storage of channel history and settings. The G3 system offers excellent channel density with up to 24 measurement channels in a 3U format.

Each channel can provide independent analogue outputs of current and voltage for DCS connection, in addition to an alarm relay. Further alarm relay expansion is possible through connection to digital outputs at the rear of the module. The system is designed for mounting in a custom 19in rack assembly, which also contains a dual redundant power supply option.

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