APPARATUS TO PROVIDE A REMOTE DISPLAY OF THE OPERATING CONDITION OF A WATER TREATMENT SYSTEM

摘要

An apparatus for providing a remote display of the operating condition of a water treatment system (10) having an electronic control utilizing a voice grade telephone system (18, 20, 22). A tone generator (16) is associated with electronic control to generate tones which are transmitted through the telephone system (18, 20, 22) to a decoder (24) which provides digital signals to a microcomputer (26) which provides a display (28) of the operating conditions of the water treatment system (10) at a remote location.