| 摘要 |
PURPOSE:To avoid mistaken operation and improve the operation by judging whether or not a registered number is relevant when an electronic balance detects the operation of the registration instruction and registering the number as a set value only when it is relevant and flashing the number if it is irrelevant. CONSTITUTION:The output of a load cell 1 is given to an A/D converter 3 by amplifying 2 it. The converter 3 detects conversion start instruction 4 of CPU7, then outputs conversion finish instruction 5 and a digital value 6. The CPU7 has ROM8 and RAM9 for storing the value required for operation, and ten keys 10, a register 11, a register button 12, and a clear button 13 are connected to the CPU7. A register display section 14 and a weight display section 15 are connected to the output. When the CPU detects the pressing of the button 12, it sets flag to the address A of the RAM9, and when the value of a registered number of the address B satisfies the minimum weighing value of the address C and the maximum set value of the address D, the CPU judges that it is relevant and sends it to the address E and displays it on the display section 14. If the CPU judges that it is irrelevant, the CPU flashes the MSD or LSD of the registered value at the display section 14. |
