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�IN edfys/mtni la nt ♦I <br /> /pNadfus/mtnl Fanerz <br /> titin' MtJtr.n9_ i aG.1 H/IKgn' <br /> pun ifa eV� Pu^'H�/L <br /> Ken F/ael Sw�hh <br /> CN Ik) <br /> I'Ao}- V^I YIf <br /> FIGURE 3-6 ACID FEED OPERATION <br /> 3 . 4 ACID FEED OPERATION While Kari float switch from <br /> equalization tank B energizes , there is <br /> electrical power available to the acid <br /> metering pump relays . <br /> If 11-12 pH range in pH adi . tank 1 , <br /> the pH probe #1 sends a signal to pH <br /> monitor #1 ; the pH monitor #1 energizes <br /> acid metering pump #1 to operate . <br /> If 11-12 pH range in adjustment tank 2 ; <br /> the pH probe #2 sends a signal to pH <br /> monitor #2 ; the pH monitor #2 energizes <br /> the acid metering pump. <br /> s When acid in 100 gal . polypropylene <br /> tank reaches a low level , the Kari float <br /> switch energizes the alarm to warn the <br /> operator that tank needs to be refilled. <br /> 14 <br />