... , panelheat transformer, temperature controller, electricinduced rate detector, liquid level controller, PLC touch screen and controI tank,etc.Usual cleaning process1, Water pre-cleaning 3 ... , Alkali cleaning 5-15 minutes temp 60°C-80°C3, Water cleaning in the middle 3-5 minutes temp 40°C ... , Acid cleaning 5-10 minutes temp 60°C-80°C5, Water cleaning at last 3-6 minutes temp 40°C-50 ...