PRECISE AND RELIABLE WATER LEVEL CONTROL METHOD OF PRESSURE TANK INCLUDING A PLURALITY OF SENSORS

摘要

PURPOSE: A water level control method with precision and reliability of a pressure tank including multiple sensors is provided to control a system by the measured value of rest level sensors though a broken pressure tank and a level sensor are separated. CONSTITUTION: A water level control method with precision and reliability of a pressure tank(100) including multiple sensors comprises following steps. The water level of the pressure tank is measured by level sensors(LT1,LT2,LT3). An absolute value is calculated by the difference of water level measurement values of the pressure tank so that a measured deviation value between each level sensor can be calculated. The measured deviation value between each level sensor is compared with a pre-set deviation value. The unusual condition of each level sensor is determined.