Operating parameters and precautions After the product is turned on, first set the current time (turn the 12-hour dial in the direction of the arrow, otherwise a malfunction will occur). The 12-hour dial corresponds to the 24-hour dial on the outer ring. When setting the time, be careful not to confuse the morning and afternoon. Move the blue paddle to connect outward and close inward. (The palette corresponding to the PRESENT TIM arrow There are 4 adjustment dials on the front and back of the watch. Please do not move them, otherwise a malfunction may occur. If the time you want to adjust is within this period, please rotate the 12-hour dial before adjusting it. The blue dial is 15 minutes per grid and can be turned on or off at will within 24 hours. There are two ways to install this product, one is direct installation, fixed with screws, and the other is guide rail installation, which is suitable for IIEC35mmDIN rail. The built-in battery will have a power reduction phenomenon due to self-discharge. Please connect the power supply to charge for about 12 minutes, and then adjust the current time of the hour hand. Note: The data are all manually measured, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.