A&d Company, Limited

Haruna Kawaguchi

Yoshikazu Nagane

Yuji Fukami

Provided is a weighing apparatus with a flowmeter function includes a load sensor unit configured to detect a load of a flow rate calculation target, an A/D conversion unit configured to sequentially convert load signals from the load sensor unit into digital load data at predetermined intervals, an arithmetic processing unit configured to sequentially convert the load data into weighed values to calculate flow rate values, and a storage unit for storing the weighed values. The arithmetic processing unit calculates change amounts in weighed values and calculates a flow rate value based on a flow rate calculation cycle set based on a minimum time by which the change amounts become equal to or more than a change amount in weighed value, the change amount being calculated based on a minimum indication of weighed value and the required resolution of weighed value and satisfying a required resolution.

Weighing apparatus with flowmeter function

To reliably exercise radio communication of calibration data. In order to achieve the above-described object, a balance () includes a weight sensor (), a built-in weight () to be loaded on the weight sensor, an adding and removing unit () for the built-in weight, an arithmetic processing unit () configured to drive the adding and removing unit, and a radio communication device () connected to the arithmetic processing unit, wherein the arithmetic processing unit includes a radio wave environment check section () configured to check a radio wave environment, and a calibration execution section () configured to add or remove the built-in weight and issue a command to the radio communication device to transfer calibration data when the radio wave environment check section determines that the radio wave is good.

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Saitama, Japan

Haruna Kawaguchi