A thermostat, the full name of temperature controller, is a type of thermostat used for:Control the temperatureIt is widely used in various scenarios such as home and industry. Its main function is to automatically adjust the operation of heating or cooling equipment according to the set target temperature by detecting the ambient temperature to keep the ambient temperature within the set range.
The working principle of the thermostat is mainly throughTemperature sensor(e.g. thermocouples, RTDs, etc.) to detect the ambient temperature. When the detected temperature drops below the set point, the thermostat closes the contacts, energizing the contactor and turning on the heater. Conversely, when the temperature rises to the set point, the thermostat will open the contacts, the contactor will be powered off, and the heater will stop working. In this way, the ambient temperature can be kept within the set range.
The wiring method of the thermostat is usually as follows:
1.Power Wiring:Connect the power cord to the power terminal of the thermostat, usually 1-2 terminals, showing AC200-230V.
2.Normally open, normally closed contact wiring:Terminals 4-5 are normally open contacts and 6 terminals are normally closed contacts. These contacts are used to control the switching of heating or cooling equipment.
3.Solid State Relay Wiring:Terminals 5-6 are used to connect solid state relays.
4.High temperature alarm device wiring:If a high temperature alarm device is required, the 8-9 terminals can be connected as NO contacts.
5.Temperature sensing wiring:Terminals 11-12 are used to connect temperature sensors.
In actual operation, it is also necessary to refer to the product manual for wiring according to the specific thermostat model and usage scenario. At the same time, pay attention to safety during the wiring process to ensure that the power is turned off to avoid electric shock accidents.
The above is a detailed introduction to the working principle and wiring method of the thermostat. Hope it helps. If you have any further questions, please feel free to continue asking.
Electrical