CMA130 3DDE300410 ABB temperature controller

The fluid medium temperature controller realizes automatic adjustment by using the principle of thermal

expansion and cold contraction of temperature-sensitive fluid and incompressibility of liquid. When the control

temperature is increased, the thrust generated by the expansion of the temperature sensing liquid will turn down

the heat medium to reduce the output temperature; When the control temperature is reduced, the temperature

sensing liquid shrinks, and the heat medium is opened up under the action of the reset device to increase the output

temperature, so that the controlled temperature reaches and maintains within the set temperature range.

CMA130 3DDE300410

The working principle of bimetal temperature controller is based on the principle of thermal expansion and contraction

of objects. Thermal expansion and cold contraction are common objects, but the degree of thermal expansion and cold

contraction of different objects is not the same. The two sides of the double gold sheet are conductors of different substances,

which bend the double gold sheet due to different degrees of expansion and contraction at changing temperatures,

and touch the set contact or switch, so that the set circuit (protection) begins to work.
The working principle of the color temperature controller is the principle that some coatings produce different colors at different

temperatures. For example, with liquid crystal at different temperatures, you can produce different colors, and then use a camera

color collector to provide different data to the circuit, so as to control the circuit.