Small weather stations are an important instrument for agricultural production and weather monitoring. When we use small weather stations daily, our staff need to understand the causes of common faults and perform maintenance in time to ensure the normal use of weather stations. The types of faults that often occur in the meteorological stations include the failure of the collector board, power supply system failure, and sensor failure. 1, the collector board fails Check the collector indicator light is correct, different specifications of the collector indicator shows a certain difference, if the indicator is off, most of the starting voltage is not enough, you can check the output voltage of the charging controller, generally once the board determines the problem, Do not try to dismantle and repair as much as possible, it is best to send the factory to deal with. 2, power system failure Can check the Pv charge controller on the battery side, output load side and solar side 3 blocks, determine the cause of the fault, usually by replacing the charge controller, battery or adjust the positive and negative battery wiring to solve. 3, sensor failure Generally through the comparison and inspection of the data between sites, which site has obvious deviations, go to the scene to check, mainly check whether the sensing line is broken or damaged, and then use a multimeter resistance file to measure the temperature sensor resistance, for measuring with 20VDC voltage file. Wind direction wind speed voltage value, check the rain sensor with the resistance file to measure the turning off of the tipping bucket. In the work of small-scale weather stations, we must continue to learn, practice, sum up experiences, and take serious responsibility for the maintenance and repair work of automatic station equipment, increase investment in human and material resources, reduce failures as much as possible and eliminate failures in time. Ensure the good operation of the meteorological automatic station equipment. This is 3D Wheel Alignment With Tablet. It does not use Computer to tansmit information. The tablet is connected to camera beam with WIFi. Thus there is no influence from out side such as sunlight and temperature. Operation and adjustment with tablet is convenient for users. Besides,it can also operated with users' cell phone with android system. 3D Wheel Alignment With Tablet 3D Wheel Alignment With Tablet,3D Wheel Aligner With Hand-Held Tablet Shenzhen Sucvary Tech Co., Ltd. , http://www.syalignment.com