Pulsing signal to the electronic control box pressure table, ordered reversing valve, then the main channel A pressure differential gauge magnehelic, B wholesale unloading pressure table, under the action of the piston in the second end of the spring cavity , the limit switch contacts 1 and 2 off, touch the bridge at the median. The system starts the second cycle to work, once the pressure table pointer between the main channel A and B pressure has reached the set value, the piston moves to the right, the trip switch contacts 3 and 4 closed pressure switch can be adjusted directly with scale knob to set the pressure value, without the need to connect a pressure gauge, control hysteresis can be a "-" character adjustment screw to adjust. magnehelic pressure table _ You win electromechanical (certified) _ Hunan pressure table provided by Changzhou gifted Litas Electrical Co., Ltd. established. Changzhou Li gifted Litas Electrical Co., Ltd. (www.abc.com) is Changzhou, Jiangsu, indicator leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Li gifted Litas electromechanical leadership with the staff warmly welcome all inquiries negotiations, founded gifted Litas electromechanical a better future.