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The Watermark Extension Bus

...gives the possibility to expand your iMETOS to high numbers of watermark sensors. Every extension unit is designed for 3 watermark sensors. The distance in between the iMETOS and the first extension box and in between the extension boxes can be several hundred meter. The watermark extension measures very fast. It finishes normally within 300 ms. By this reason it can only be combined with fast sensors like barometric pressure ,tensiometers or multiple leaf wetness sensors. Single temperatures based on PT100 and multiple temperatures based on DS1820 can be connected at the end of a watermark extension chain. There is a version with a 3 second delay which can be combined with HC-sensor extensions.
For the cabling please refer to the photographs and scematics aside.

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Created by heiner. Last Modification: Thursday 09 of February, 2012 10:48:01 GMT by Lena.