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    • 2. 发明公开
    • MOISTURE METER
    • EP4067862A1
    • 2022-10-05
    • EP19954457.8
    • 2019-11-28
    • A&D Company, Limited
    • KANNO Masahiro
    • G01N5/04
    • Provided is a heating and drying moisture meter that can diagnose the state of a device in consideration of not only factors of a mass measurement unit but also factors other than the mass measurement unit. A moisture meter (100) includes a mass measurement unit (2) configured to measure the mass of a specimen, a heating unit (3) configured to heat the specimen, a control arithmetic unit (5) configured to control the heating unit (3) to heat the specimen until a change in the mass of the specimen becomes not more than a predetermined threshold and calculate the moisture content of the specimen from the change in the mass before and after heating, a timepiece (4) configured to measure a heating time, and a storage unit (8). The control arithmetic unit (5) includes a standard substance measurement unit (52) configured to measure the moisture content of a standard substance for inspection as the specimen and measure a heating time and an abnormality diagnosis unit (53) configured to diagnose presence or absence of an abnormality in the mass measurement unit (2) by evaluating a measured moisture content with reference to a theoretical moisture content of the standard substance and to diagnose the presence or absence of an abnormality in the heating unit (3) by comparing a measured heating time with a predetermined time as a set heating time stored in the storage unit (8) in advance.