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Help in choosing sensors

5/5/2010 9:44 PM	Rate (0)
Dimos Posts: 1 Rating: (0)	I am trying to build an automation for a fish aquarium using the LOGO! 12/24 RC since it has the two handy AIs. I will be using those two to monitor temperature and ph. Here comes the problem.... Having an IT backround I m completely clueless on how to choose a good sensor for this application. The aquarium is supposed to have its water requlated at 25 Celcius and its ph should be around 7.0. Preferably I would like to go with 0 - 10 V sensors since I dont want to buy the extra module. Any help is appreciated :)
Dimos Posts: 1 Rating: (0)
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5/6/2010 9:14 PM	Rate (0)
cdrshort Posts: 134 Rating: (16)	for ph http://www3.jumo.de/pio/JUMO/en_UK/prd/20.2701/2-wire-transmitter-for-ph---redox-combination-electrodes.html use a curent loop resistor for 0-10V . http://eshop.phoenixcontact.de/phoenix/treeViewClick.do?UID=2814870&parentUID=852472862&reloadFrame=true for pt100 >0-10v.
cdrshort Posts: 134 Rating: (16)
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