P16 Xy-t01 digital temperature controller high precision digital display temperature controller module refrigeration and heating Product functions: 1. Heating mode `H`: When the detection temperature ≤ the set temperature - return difference temperature, the relay is turned on and the heating equipment starts to work; When the detection temperature is ≥ the set temperature, the relay is disconnected and the heating equipment stops working; 2. Refrigeration mode `C`: When the detection temperature is ≥ the set temperature + return difference temperature, the relay is turned on and the refrigeration equipment starts to work; When the detection temperature is less than or equal to the set temperature, the relay is disconnected and the refrigeration equipment stops working; 3. High temperature alarm function ala: When the actual temperature is greater than or equal to the alarm temperature, the system will start the audible and visual alarm, disconnect the relay, and press any key to stop the audible and visual alarm; 4. Delayed start of OPH: After completing a normal heating or cooling work, the system starts to count T. only when t ≥ OPH, the system can carry out the next round of heating or cooling work; 5. Temperature correction function ofe (- 10.0 ~ 10.0 ℃): If the system works for a long time, there may be deviation. Through this function, the actual temperature = measured temperature + calibrated value; 6. Remote reading / setting of parameters: Start temperature, stop temperature, temperature correction and other parameters can be set through UART; 7. Real time temperature reporting: If the temperature reporting function is enabled, the product will transmit the detected temperature to the terminal through UART at an interval of 1s for data acquisition; 8. Relay enable (default on): If the relay is turned off and enabled, the relay remains disconnected; 9. Restore factory settings: Press stop and set for more than 3S at the same time to restore the factory setting; Operating mode / setting temperature / return difference temperature setting: 1. In the operation interface, briefly press the set key to enter the quick setting interface; 2. Press the temperature setting / difference key to enter the working mode setting interface (short time setting); 3. Use the up down key to modify the parameter value, and support short press / long press; 4. Press and hold set for more than 3S or for 6S without any key operation, exit the quick setting interface and save the parameters; Alarm temperature / delay start setting / temperature correction: 1. In the operation interface, long press set for more than 3S to enter the parameter setting interface; 2. After entering the parameter setting interface, briefly press the set key to switch the parameters to be set (alarm temperature / delayed start setting / temperature correction); 3. Use the up down key to modify the parameter value, and support short press / long press; 4. Press and hold set for more than 3S or for 6S without any key operation, exit the parameter setting interface and save the parameters; How to turn on high temperature alarm (off by default): Enter the parameter setting interface, switch to the alarm parameter ala interface, and turn on or off the high temperature alarm function by short pressing the stop key; If the high temperature alarm function is off, ALA displays` ---- `as a reminder; How to turn on delayed start (off by default): Enter the parameter setting interface, switch to the alarm parameter OPH interface, and turn on or off the high temperature alarm function by short pressing the stop key; If the high temperature alarm function is off, OPH displays` ---- `as a reminder; Serial port control (single chip microcomputer TTL level communication) Communication standard: 9600bps data bit: 8 Stop bit: 1 Check bit: None Flow control: None