SYSTEM FOR CHECKING FILTER OF AIR CLEANER HAVING FUNCTION OF CORRECTION FOR ERROR

摘要

PURPOSE: A system for sensing a time to replace an air cleaner filter is provided to exactly and effectively detect a time to replace the filter by correcting error of the system. CONSTITUTION: A system for sensing a time to replace an air cleaner filter comprises a power unit, a pressure sensor, a converter(2), a unit(7) for controlling a standard value, a unit(8) for changing a cycle, a processor(3), and a display unit. The pressure sensor is installed in a discharge port connected to a filter unit, and measures the pressure of a filter. The converter converts the measured vale into the pre-set form. The unit for controlling the standard value controls the standard value, which indicates the pressure when the filter is needed to be replaced. The unit for changing the cycle controls the cycle of measuring pressure. The processor receives a converted measured value, and compares the value with the standard value. The display unit displays a time to replace the filter.