| 摘要 |
PURPOSE:To obtain a manual return type safety device for a temperature, which is inexpensive and easy in a return operation, by combining a temperatute detector of an automatic return type wiht a safety device for a burning controller. CONSTITUTION:When failing an ignition, the charging to a condenser 27 is promoted, an output of a comparator 31 becomes 1, a driving circuit 32 is turned ON, a reset coil 3 is electrified and a contact point 4 is turned OFF for suspension of all actions. Then, when a device is turned ON for some reason by the actuation of a temperature detector 6 at the time of burning, the reset coil 3 is electrified, the contact point 4 is turned OFF for suspension of all the actions. Even if the temperature detector 6 is returned automatically for turning OFF under this state, the contact point 4 is kept turning off unless a set coil 2 is electrified. Return is made by the energizing of the set coil 2 by closing contact point of a switch 5 provided separately. With this, a safety device for a temperature, which is inexpensive and easy in a return operation is obtained. |
