INSTRUCTIONS BOOK FOR FURNACE H1
7
1.6.3. Thermocouple
The thermocouple is the sensor to measure the temperature. It consists of two different metals, joined at one
end. When the union of the two metals is heated or cooled, it produces a voltage proportional to the tempera-
tura which causes the safety valve to open or close.
The thermocouple safety valve consists of two parts: The valve and the thermocouple
The valve is equipped with the
Thermocouple
pushbutton
for ignition of the furnace.
In the process of ignition of the furnace we press this button to allow the passage of gas. When the thermo-
couple gets enough temperature, we will release this pushbutton and the gas will continue to pass through the
valve. This valve will remain open while the oven is in operation and the thermocouple will keep the working
temperature.
Once the oven is switched off, and in a time interval of less than 2 minutes, the thermocouple cools and stops
acting on the closing safety valve, thus preventing the passage of gas
Picture 3. Thermocouple set
Thermocouple
Thermocouple
valve
Summary of Contents for H1
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