Water Sensors (Pressure and low float)?

[heffneil]

I am looking for two sensors to connect to my omnipro II. I need a pressure switch preferably 30 PSI or lower to alarm and a submersible low float switch. Any ideas of who makes these? I have to make sure my well pump is functioning properly and part of that is building pressure in the system. I have a whole home RO system and I need a low float switch to alarm me if the water in the storage tank gets below a certain level.

Thanks!

Neil

 

[DavidL]

I am looking for two sensors to connect to my omnipro II. I need a pressure switch preferably 30 PSI or lower to alarm and a submersible low float switch. Any ideas of who makes these? I have to make sure my well pump is functioning properly and part of that is building pressure in the system. I have a whole home RO system and I need a low float switch to alarm me if the water in the storage tank gets below a certain level.

Thanks!

Neil

Last summer I had to fix a SeaDoo fuel gauge that was inoperative. Basically it's a float with a magnet the rides next to a circuit board that has many micro switches. As the float passes by a microswitch, it trips a circuit and the resistence of the overall circuit increases. You could monitor a voltage via your HAI and provide a detailed float level. I suspect you really "don't care" that the pump is pumping, but really care that the sump is above the "high water mark". No matter what the cause is, you want to know you will be flooded soon, even if the pump is pumping and creating pressure.

Anyway, you could certainly find (buy) a used one and mount it to a piece of pressure treat wood and position it in your sump away from the pump float.

http://www.seadoosource.com/fuelfloatinstall.html

 

[heffneil]

This is my drinking water tank so I can't put a pressure treated piece of lumber in there. All I care about is if the water is above a certain level. If it is too low it means the system is making water!

I think a standard float which is in there is just a switching float but I think they require power (120v)

Thanks,

Neil

 

[DavidL]

This is my drinking water tank so I can't put a pressure treated piece of lumber in there. All I care about is if the water is above a certain level. If it is too low it means the system is making water!

I think a standard float which is in there is just a switching float but I think they require power (120v)

Thanks,

Neil

Ah Ok, I thought you were trying to monitor a sump system.

If you are looking to monitor water pressure, any Home depot will sell a pressure switch for well use. You can set the trigger point which will send to the HAI when that pressure has been reached.

As far as a float requiring power, most are just a switch - a switch that switches current. You can switch 5, 12 or 120 volts with a switch rated for 120. Whatever voltage your HAI will take as direct input. You could also tie into the switched portion of the switch, that feeds the pump and plug in a transformer to reduce the voltage to the volts your HAI can handle natively. So, whenever the pump should be on, the transformer's voltage tells the HAI that the pump should be running. The pressure switch will tell you that in fact it is. You probably would need to allow the pump a few seconds to build up pressure, before sending the alert that the pump is On, but no Pressure.

 

[murphy]

...I need a pressure switch preferably 30 PSI or lower to alarm and a submersible low float switch. ...

For a pressureswitch you can look to

www.grainger.com

They have a big catalog and a lot of different pressure switches

For the float switch, have a look to

http://www.aquahub.com/store/floatswitches.html

I have 2 of them in use: one to detect air in my pumpsystem and one as a second emergency/lowlevel indicator of my well. Both are working well and reliable.

 

[heffneil]

Thos float switches look pretty good thanks! I was thinking I could use a regular pressure switch like the above poster mentioned. It dawned on me today. If I set the pressure to 30 lbs then I would know the pressure is below the trigger switch for the pump and something is wrong. The pumps switch is set for a min of 40 to kick on so it should never get below there!

Thanks,

Neil