Sous Vid Project Low Water Sensor

lordkiwi
Posts: 2
Joined: Wed Nov 20, 2013 9:27 pm

Sous Vid Project Low Water Sensor

Postby lordkiwi » Wed Nov 20, 2013 9:31 pm

I would like to integrate a low water sensor such as this one http://www.ebay.com/itm/Vertical-Stainless-Steel-Tank-Liquid-Water-Level-Sensor-Horizontal-Float-Switch-/251241767990?pt=LH_DefaultDomain_0&hash=item3a7f2d2436 into a Sous Vide setup, to shut the unit down What do you think would be the best way to accomplish it?

richiem
Posts: 270
Joined: Mon Jan 03, 2011 3:47 pm
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Re: Sous Vid Project Low Water Sensor

Postby richiem » Thu Nov 21, 2013 1:47 pm

I would put it in series in the control signal line from the PID controller to the SSR. That switch has kind of an awkward arrangement for your use -- I would look for one that has a double-throw switch or one that is closed when the level is high and opens when the level is low....

lordkiwi
Posts: 2
Joined: Wed Nov 20, 2013 9:27 pm

Re: Sous Vid Project Low Water Sensor

Postby lordkiwi » Thu Nov 21, 2013 1:59 pm

richiem wrote:I would put it in series in the control signal line from the PID controller to the SSR. That switch has kind of an awkward arrangement for your use -- I would look for one that has a double-throw switch or one that is closed when the level is high and opens when the level is low....


I found these choses also http://www.ebay.com/itm/PP-Side-Mount-Horizontal-Water-Level-Sensor-Liquid-Float-Switch-for-Tank-Pool-/300900359399?pt=LH_DefaultDomain_0&hash=item460f0f1ce7
http://www.ebay.com/itm/New-Liquid-Water-Level-Sensor-Right-Angle-Float-Switch-/320919814015?pt=LH_DefaultDomain_0&hash=item4ab84fbf7f

thanks

richiem
Posts: 270
Joined: Mon Jan 03, 2011 3:47 pm
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Re: Sous Vid Project Low Water Sensor

Postby richiem » Sat Nov 23, 2013 2:25 pm

The first one can be normally open or normally closed, so that's a good choice. The second doesn't say whether it is normally open or normally closed, so I can't tell if it's suitable or not. Go with the first one.


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