afboundguy
Member
Has anyone ever made a DIY RODI flow sensor? I saw that Hydros used to make one but it's discontinued and I would like to make my own and would rather not have to reinvent the process if someone has already tackled this!
1/4" RODI flow sensors
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Nearly all the flow meters you will find on ali or amazon will work. The main thing is Hydros use a dual pulse I believe and most sensors are single pulse so you might have to select a larger flow meter in the drop down to get the right equivalent flow rate on some of the smaller meters, nothing a jug and a stop watch can't fix.
thom_smith
HYDROS Expert
Many of the Amazon Gredia flow sensors were modified to worknwith Hydros before they introduced their own sensors i have used *pex and Sea sensors. Just need to find one with a compatible pulse rate. Got this from engineering quite a while ago.
LPM is FreqHz / C. So LPH = (FreqHz / C) * 60.
C is a constant defined by the flow sensor model according to the following table:
FM-025 - 1600.0
FM-050 - 7.5
FM-075 - 5.5
FM-100 - 1.0
FM-125 - 0.45
FM-150 - 0.5
FM-200 - 0.2
LPM is FreqHz / C. So LPH = (FreqHz / C) * 60.
C is a constant defined by the flow sensor model according to the following table:
FM-025 - 1600.0
FM-050 - 7.5
FM-075 - 5.5
FM-100 - 1.0
FM-125 - 0.45
FM-150 - 0.5
FM-200 - 0.2