| 摘要 |
PURPOSE:To indicate a piece of information on safety after the end of dive by measuring a rest time on the water surface and indicating a flight impossible mark till a specific time passes or a dive impossible flag when the specific time reaches. CONSTITUTION:A CPU 23a judges it is a rest time on the water surface when the data of a water depth value from a pressure sensor 21 are phi and operates a rest time measuring counter B 25 to output its data thereto. A prescribed time previously written in a ROM 23b is compared with rest time data to output an ON/OFF signal of a flag to an LCD 26 depending on whether the rest time is within the prescribed time. Further, the rest time is subtracted from the prescribed time and the result is output to the LCD 26. Next, a flight time is output to a RAM 23c by outputting the ON/OFF signal of an outside input switch 27 to the CPU 23a. The prescribed time is subtracted from the flight time and a dive impossible flag is indicated in the LCD 26 when the remainder time is prior to a present time. |
