Weighing apparatus with flowmeter function

A weighing apparatus with a flowmeter function comprising:

• a load sensor unit configured to detect a load of a flow rate calculation target and output load signals;
• an A/D conversion unit configured to sequentially convert the load signals into digital load data at predetermined intervals;
• an arithmetic processing unit configured to sequentially convert the load data into weighed values by correction computation and calculate flow rate values from the weighed values;
• and
• a storage unit configured to sequentially store the weighed values, wherein
• the arithmetic processing unit calculating an amount of change in weighed value by using the weighed values stored in the storage unit,
• calculating, based on a minimum indication of weighed values and a required resolution of weighed values, an amount of change in weighed value satisfying the required resolution,
• calculating a minimum time by which the amount of change in weighed value becomes equal to or more than an amount of change in weighed value satisfying the required resolution, setting a flow rate calculation cycle based on the time, and calculating a flow rate value based on the flow rate calculation cycle.