HOLD THE
RIGHT pH
CONTINU iOUSLY
DYNALOG pH CONTROLLER
PRECISE pH CONTROL A T L O W E S T
COST
T h e r e a r e t h r e e i m p o r t a n t reasons w h y Foxboro p H controls h a v e become t h e largest-selling p H control systems i n t h e world. (1) N O P R E A M P L I F I C A T I O N is needed between electrodes a n d recorder-controller.. Savings include lower initial costs, lower installation a n d m a i n t e n a n c e costs. (2) L O N G E R E L E C T R O D E LIFE F i v e times greater a d j u s t m e n t for drift t h a n a n y other s y s t e m quintuples t i m e between elec t r o d e replacements. (3) S I M P L E RANGE C H A N G E Screwdriver a d j u s t m e n t provides unlimited range change from 0 t o 14 p H . M i n i m u m s p a n is 2 p H . For an intelligent cost analysis of the advantages Foxboro pH control can bring to your operations, consult your Foxboro Field Engineer. Or write for Bulletin 19-12: The Foxboro Company, 155 Norfolk Street, Foxboro, Massachusetts; or The Foxboro Company, Ltd., LaSalle, Quebec. SPECIALISTS in Process and Energy 92
C &Ε Ν
Control
FOXBORO REGISTERED TRADEMARK