Flow Meter - Alarm

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akom
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Flow Meter - Alarm

Post by akom » Sat Dec 14, 2019 4:25 pm

Planning to get this small flow meter:
https://www.ebay.co.uk/itm/Digital-Flow ... SwbI9dyjNV

I'd like to have it so it triggers an alarm when a set volume is reached (or maybe shuts off the flow?). Anyone know where I could find an alarm/valve I could use for this?

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LeeH
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Flow Meter - Alarm

Post by LeeH » Sat Dec 14, 2019 5:14 pm

Without a dedicated pulsed/digital or analogue output from the controller you will have to figure out how it works. It may just be a magnetic pulse, IF it is you could use that and a pretty basic counter which you could programme one of the alarm outputs to power a lamp or sounder or even interrupt you pump control circuit.

The brainy folk could do it easily with one of this banana/raspberry pie thingymebobs.




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Last edited by LeeH on Sat Dec 14, 2019 5:14 pm, edited 3 times in total.
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LeeH
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Flow Meter - Alarm

Post by LeeH » Sat Dec 14, 2019 5:17 pm

https://uk.rs-online.com/web/p/counters/8086627/

It may use a Hall effect sensor, is so a bit more thought required but I’m currently kegging 47L off America’s finest pale and cannot struggle to do 2 things at once.

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Jocky
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Re: Flow Meter - Alarm

Post by Jocky » Sat Dec 14, 2019 9:19 pm

Not much I can help with other than saying that actuated valves are expensive. Turning a pump on/off is much cheaper to accomplish.
Ingredients: Water, Barley, Hops, Yeast, Seaweed, Blood, Sweat, The swim bladder of a sturgeon, My enemies tears, Scenes of mild peril, An otter's handbag and Riboflavin.

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