This device is not very complicated and consists of the heating element, the mercury column and the solenoid. When the current is switched on starts to operate the heater — closed working contacts of the relay. When it starts to heat up the mercury, and the column rises to the level of the contact turns on the electromagnet. It attracts the contact 1, and the heater is switched off. With the decrease of temperature the mercury goes down, severing contacts, the electromagnet is deactivated. The result is again connected to the terminals 1 and 2, and the heater turns on again.
Recommend to read
ON THE BICYCLE FROM THE CAR
Automotive pump, of course, performance bike, but they (if the pump is to the old bike) unequal valves, which eliminates the possibility of replacement. Small adapter to motor valve will...
TWO FLOORS
"Storey" furniture is always attractive at least because it allows you to save space in the apartment. Not casually so popular, for example, a furniture wall wardrobes with mezzanine....
