WATER LEVEL GAUGE OF DOUBLE FLOAT TYPE

PROBLEM TO BE SOLVED: To maintain precision and facilitate maintenance without being affected by negative influence of installed environment as well as enlarging environment resistance in sensing by preventing attachment contamination such as mold, and other bio-attachment and/or water stain, suspension sludge, and others under the installed environment by changing the water level gauge of float type which is installed for monitoring water level variation to double float type. SOLUTION: The water level gauge of double float type X includes a float switch 1 and a water level responsive free float 2 in two steps of up and down being freely closing or leaving mutually in a float case 3, while making the water level responsive free float 2 follow the variation of the water level, and on the basis of the behavior, the float switch 1 creates or secures a motion environment so that the present water level can be detected. The optimum water level responsive free float 2 is a spherical float 21, which is made to float while playing freely in the float case 3. COPYRIGHT: (C)2009,JPO&INPIT