Specification: 1. Working temperature: -20~+55 2. Conventional voltage: 220-240VAC 50-60Hz; 3. Power consumption: Instructions 1. Calibration of Beijing timeWhile pressing the "Clock" key, press the "Minute", "Hour" and "Week" keys respectively to adjust the Beijing time. 2. Timing settingsA. Press the "Set" button, the lower left of the display will display the word "1" (indicating the first turn-on time), and then press the "Minute", "Hour" and "Week" keys respectively to input the required turn-on time.B. Press the "Set" button again, the lower left of the display will display the word "1" (indicating the first closing time). Then press the "Minute", "Hour" and "Week" buttons respectively, and enter the desired shutdown time. time.C. Continue to press the "Set" button, the lower left of the display screen will display (20, 2w.16, 16m) in turn to set the switching time of each subsequent time with reference to steps A and B. If you only need to set ON and OFF once, then The "Cancel/Resume" button must be pressed to cancel the time set behind them.D. Press the "Set" button, and then press the "Week" button, you can set different cycle modes of the same every day, different every day, the same from Monday to Friday, the same from Monday to Saturday, or the same from Saturday to Sunday. Troubleshooting and Precautions Troubleshooting:1. If the switch is not turned on when it is set to turn on, or the time to turn off after turning on is not turned off, check whether the "week" is correct, otherwise, please adjust it again.2. If it is confirmed that the "on" and "off" times are completely correct, but the switch is turned on at the time it should not be turned on, or turned off at the time it should not be turned off, please check whether the redundant switch times are eliminated, such as If not, please refer to the method introduced in "Timer Setting" to eliminate (Note: the switching time display "--:--" means elimination, don't think "00:00" means elimination)3. If the above two items are all correct, but the switch still does not operate normally, please check whether it is in the automatic position. Precautions:1. In order to prevent the contacts from heating under strong current, be sure to tighten the screws of the terminals when wiring.2. The common voltage of the product is 220VAC current, do not connect to 380VAC power supply. (For special specifications, please order).3. Please do not use this control switch for those equipment (such as medical equipment and large equipment) that may cause human life-related accidents or have a significant impact on society due to the error of the time control switch.4. The switch should work in a gas environment without moisture, corrosion and heavy metal content, and do not contaminate it with oil or water.