Kenco Engineering Pneumatic Float Switch User Manual

KENCO ENGINEERING COMPANY
P.O. BOX 470426, TULSA, OK 74147-0426
PHONE: (918) 663-4406 FAX: (918) 663-4480
http://www.kenco-eng.com e-mail: info@kenco-eng.com
INSTALLATION & OPERATIONS MANUAL
FOR PNEUMATIC FLOAT SWITCHES
The Pneumatic Float Switch is installed in a 2" half coupling which is welded into the tank wall. Be certain that the hole in the tank wall is at least as large as the inside diameter of the half coupling, so there is no interference with the 106 float arm action. The float will operate in a fluid specific gravity of 1.00 or greater.
HIGH LEVEL SWITCH: To release the pneumatic line pressure when the liquid level reaches the high level of a tank, connect the pneumatic line to inlet port "B" and plug port "C". The switch will release the pneumatic pressure when the liquid rises.
LOW LEVEL SWITCH: To release the pneumatic line pressure when the liquid level reaches the low level of a tank, connect the pneumatic line to inlet port "C" and plug port "B". The Switch will release the pneumatic pressure when the liquid level falls.
SWITCH TRIP POINTS: The 1 3/8" dimension shown below will be below the switch centerline if switch or entire assembly is rotated 180 degrees. Trip point dimensions are based on tests with water at ambient temperature. Trip points may vary with liquids other than water.