| 摘要 |
PURPOSE:To enables indication of measured time in total on a stop watch display by providing a first counter for outputting a signal according to the upper limit value and a second counter for outputting according to counts at the inputting of signals. CONSTITUTION:The counting upper limit value of a first counter 31 is set at 12 and with a switch 29 ON, time is indicated on a display 25 continuously. A division output of a division circuit 19 is inputted into first and second counters 31 and 32 every one hour and when the measuring time reaches 12 hours, the first counter 31 outputs a signal according to the upper limit value and 12 is indicated on a total display 34. As the time measurement continuous for 15hr and 51min, 3hr and 51min is indicated on a sequential display 25 while 12hr are indicated on the totalized display 34. When a button is pressed to turn ON a flip flop 39, a reset signal is outputted to reset the first counter 31 and the second counter 32 outputs a signal according to counts to add 3hr to the value of the total display 34 and 15 is indicated. |
