Co2 Low pressure switch activated alarm

[blfuller123]

I am wanting to add a pressure switch that will close when my C02 tank pressure gets low to trigger an alarm. I know I can use my ADIN expansion card with a breakout to do it, just wondering if someone else has already done it?

 

[Lasse]

No but I have used the level outlet for doing nearly the same thing - using the function for leakage detection. Just take a level switch and cut of the level indicator. Connect the two wires to your pressure switch and adjust the inverted function in a way that you get an alarm when your CO3 pressure is low.

Here is my use of the adin card in my new aquarium - the thing above was in another application I did.

Sincerely Lasse

 

[blfuller123]

Yep that sounds like it would work too but I am already using all of my float switch plugs and I have an empty ADIN breakout. Think I will give it a shot, just need to find a pressure switch...

 

[Member No 1]

Here you go! NC switch, 14-140psi range adjustable.
Amazon product ASIN B00NXIXR60

 

[Lasse]

No excuses - just do it and report here afterwards :D

Sincerely Lasse

 

[blfuller123]

@Lasse Can you post how you have the sensor incorporated? I found where I could put the sensor on the regulator but I cant get the fittings loose

 

[Lasse]

I have not use it this way with an regulator and do not know which switch and regulator you use. But if you attach some pictures we maybe can figure it out.

Sincerely Lasse