| 摘要 |
PROBLEM TO BE SOLVED: To confirm at least the newest calibrator at the measuring time to thereby remove easily a measurement error caused by calibration performed by an improper calibrator. SOLUTION: This so-called water quality measuring device is provided with a calibration related data storage part D2 for storing calibration related data including at least a user identifier for identifying a user performing calibration and calibration date-and-time data for showing the date and time when the calibration is performed, and a display output part P1 for acquiring the newest calibration related data from the calibration related data storage part D2 on reference to the calibration date-and-time data, and displaying discriminably the user specified by the user identifier included in the calibration related data as the calibrator together with a measurement result. COPYRIGHT: (C)2005,JPO&NCIPI
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