Reef Angel Forum

I switched to the StandardATO from SingleATO. When using the SingleATO my ATO worked fine doing both on/off duties. For some reason using the StandardATO the lower float only turns relay on and doesn't turn relay off. The relay only goes off once the water puts the top float in up position. I'm using the wizard settings for StandardATO. Is it supposed to work this way?

I thought with standardATO the lower float would still do on/off duties "just like using the SingleATO" and the upper float is only for emergency shutoff in case lower float doesn't do it.

Am I doing something wrong? If not, is there code that can keep the lower float doing both on/off duties and then use the upper float to turn off relay in case lower float malfunctions.

That's exactly how they work:
http://forum.reefangel.com/viewtopic.php?f=7&t=240
To use in the way you mentioned, you can use this:

cheers, I will try that