| 摘要 |
<p>PURPOSE:To detect contents of a fault before a sequence gets rough in process by providing a controlling device to connect to an upper/lower bound position detector for a float in each supply chamber and a fault alarm to connect to said controlling device. CONSTITUTION:When the total number of pieces in supply chambers 1-3 becomes less or more than a set point, the first function of a controlling device 14 works for comparison, and then a fault alarm 15 inputs a signal issued thereby to display occurrence of a fault or give the alarm therefor. Where floats F1-F3 in the supply chambers 1-3 rise quickly, valves B, C are ketp open and a valve D is faulty to a leaking state. A high pressure then works on the bottom of the floats, which rise quickly consequently. Where slow on the contrary, the valves B, C are kept open and a valve A is faulty to a leaking state, and since a high pressure works on the top of the floats, the floats come to rise slowly.</p> |
