For those of you who run an electric Brewery which I am designing and getting ready to build my own I'm switching over from gas brings me to my question what are you guys using for water level sensors to protect your elements
this is a picture and this is not the one to get but be warned some are way over priced a good one should be below $30
https://www.aliexpress.com/item/ZSC...-Sensor-Stainless-Steel-Float/1684701150.html
so the signal will disrupt the ssr and be a dc voltage, the same as your signal in from the pid
My kettle doesn't have any , all the brains running my lil brewhouse are stuck in my head
I used an Omega LVE-951 optical sensor on the 3 barrel system I designed and built For a friend of mine who opened a micro-brewery. I used it because it has no moving parts and is rated for 250F. It's a little pricey but works well. The sensor comes with no supporting circuitry that may be scary for some, but it allows for a lot of flexibility from an engineering perspective.
It's actually pretty cool how it works, it has a prism is on the outside of the sensor and looks like a glass bulb. A beam of light is direct toward the prism from the inside and it is reflected back to a light sensor on the inside, as liquid comes in contact with the prism the beam of light is no longer reflected back to the sensor and the output is activated (active low). The way I designed it is that it interrupts the whetting voltage to the control relays shutting them off. It does have a couple of things to watch for, it needs to be cleaned after every brew and it's best to have it recessed from the pot to avoid falsing from steam.
It maybe overkill for some, but I plan on using it when I finishing designing the rest of my system. Right now I use a PID for my mash, but the rest is still old fashioned gas. Not having some safety controls for firing an element not only leads to damage elements, but also damaged pots if it get the dry pot hot enough to impinged the stainless. Plus dry firing smells bad.
Here's a link to my schematic, I designed it so it would turn on a green light when it was active and a red light when it was low or inactive. Since I had only one output from the sensor, I had to get creative to get the two lights to work with just one output.
https://drive.google.com/open?id=0B-60w_IvRv3BeTBIZHozZ1E0R0k5UTlBNUhZcE4zb0x1ME53
Here's a link to the Omega LVE-951 manual.
https://www.omega.com/manuals/manualpdf/M5173.pdf
Good luck!
I think your electricity needs to be updated, I wouldn't spend the $ on stout if you don't have 240v power, your just not going to be happy