Re: Tank Depth



Hello James,


The lowest pressure rating that I saw was 15 PSI. Too high and I would have to construct some sort of amplifier to bring up the voltrages to reasonable levels. The pressure I believe that I would be working with is about 1.29 PSI (.43*3 Ft.). The range on the MPX5010 is 1.45 PSI and is amplified to have a F/S output of 4.475 VDC with a F/S span of 4.275 with a supply volyage of 4.75 VDC.

Sure, but there is fun in designing circuits :-)))

Sure, but forcing a part to do what it wasn't designed for and not within the specs when there is one that is doesn't sounf good to me.


Oh, I do that all the time. Thing is, the low pressure ones you mentioned look a bit flimsy. I'd prefer something that can be plumbed in.


I assume you run it via a sprinkler controller or something like that, with a master pump output. For many of those you can buy a precipitation sensor. The really good ones may allow for gradual adjustment of the zone times depending on how much precipitation there was.

Know of any ones like that?


Don't remember, have seen them at Home Depot. The Toro 12-station timer we have can be equipped with one so you could check their web site. I just didn't buy it because we really don't need that feature. Summers out here are nearly rainless.

--
Regards, Joerg

http://www.analogconsultants.com
.



Relevant Pages

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    ... With proportional pressure sensors that is going to become expensive. ... have to construct some sort of amplifier to bring up the voltrages to ... amplified to have a F/S output of 4.475 VDC with a F/S span of 4.275 with a ... supply volyage of 4.75 VDC. ...
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    (uk.tech.digital-tv)