| 摘要 |
PROBLEM TO BE SOLVED: To provide a microcomputer meter control unit of low price which is manufactured in a short time and has a constant moistureproof performance. SOLUTION: The unit is provided with a printed wiring board 40, a component comprising a CPU 10 which is mounted on the printed wiring board and controls the entire gas meter, a flow-rate sensor 9 which detects flow rate of gas, a test switch 11 for checking the function, and an LED 12 to report states, a protection layer formed by integrally molding the printed wiring board and the component by hot-melt-molding, and a fitting part 30 formed by hot- melt-molding. COPYRIGHT: (C)2003,JPO
|
