| Class¢ñ: |
| 1¡¢running accuracy: instaneous daily rate£¼¡À30 s/d |
| 2¡¢working temperate: £55¡æ¡«£«70¡æ |
| 3¡¢working volt: 28v or 15v or 5v |
| 4¡¢electric current ¡Ü100mA (under working volt) |
| 5¡¢the performances of the product should conform to the relative requirements after |
| temperature shock test, acceleration test and vibration test. |
| |
| class¢ò: |
| 1¡¢running accuracy: relative error of time duration(24h)¡Û¡À0.1% |
| 2¡¢working temperature : £55¡æ¡«£«70¡æ |
| 3¡¢Power dissipation:¡Ü20mA£¨under nominal working volt£© |
| 4¡¢the performances of the product should conform to the relative requirements after damp |
| heat test and vibration test. |
| |
| Model Rules£º |
| eg. |
 |
