As I am new to the site 1st up I will say Hi to all the still freaks :happy-partydance: ..
I see every one trying to control this and that to make life simple ( Plug And Play ) " Not plug and walk away "
If your not in to learning a new computer language ( Arduino ) you might fiend this a little more simple...
Project : Control the water flow rate to the colum condenser to maintain best vaper ABV be for it moves it to condensing chamber.
Using a " Digital thermostat Temperature Controler " with onboard PID " Fuzzy " algorithm (
http://www.ebay.com/itm/REX-C400-Dual-Digital-F-C-Digital-PID-Temperature-Controller-Alarm-Function-/371474136406.. with a J type thermo probe in to the top of the colum..
This will Be attached to a 240vac step doune transformer 240vac - 12vdc with output control V.
http://www.ebay.com.au/itm/AC-110V-220V-TO-DC-5V-12V-24V-2A-60A-Switch-Power-Supply-Adapter-Intriguing-/282263224842Now we have 2 of the main components for control lets K.I.S.S this thing .. on this page you will fiend a Relay to switch rotation of a 12v motor
http://www.homebuiltrovs.com/howtorelays.htmlBy running one relay to the " temp to hot " and one relay to " temp to cold " and then on to a DC motor with DC12V 5RPM High Torque Brushless DC Gear Box Motor Speed Reducer
and then using the DC-5V-12V-2A-Switch-Power-Supply-Adapter-Intriguing it will make slow controlled movements
Add in 2 micro stop switches so it will not jam shut or open past 90% of a needle valve...
well Thats the plan as I dont have lots of $$ I will be making it in parts and I will eventually set a recirculating tank out side with a pump 580lt will cover the heat exchange :obscene-drinkingdrunk: