| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic device capable of extending its life by carrying out particular temperature control of each part constituting the device. SOLUTION: A temperature recording device 13 having a nonvolatile detected temperature storing means is backed up by a power supply 6, and to the detected temperature storing means, temperature at respective arrangement places detected by a plurality of temperature sensors 15 selectively arranged inside or suitable a casing 2 are stored. Thereby, the selection of temperature monitoring place by temperature sensors can be enabled inside or outside the casing 2, and by backing up by the power supply 6, the monitoring of parts liable to be affected, for instance, by a temperature change can be always enabled, and further, by storing the detected temperatures at respective arrangement places into the nonvolatile detected temperature storing means, the detected temperature can be managed without distinguishing. Thus, the lifetime of devices can be prolonged by carrying out in particular the temperature control for each electronic part.
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