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Application of Quantitative Control Devices - Focus on Microfluidic Control Technology
Application of quantitative control device: At present, many companies will use or need one of the projects to improve the project. It has features such as easy operation, intuitive display, manual control of flow, or automatic control flow. It is especially suitable for the quantitative control of oil-filled, water-mixed, drug-injected, quantitative water-injection and various liquids. First, system composition 1. Metering sensor: It can be a flow meter installed on the pipeline, a level gauge on the tank or a load cell, which is the basis of the control and directly affects the control effect. The higher the measurement accuracy of the sensor, the better , There is a signal output function. At the same time, there are many sensors to be measured. Selecting appropriate sensors is particularly important. The corresponding sensors must be selected according to the actual industrial and mining conditions on the site. In addition, technical requirements such as anti-corrosion, explosion-proof and field installation must be taken into consideration. 2, YC quantitative control box: contains YC quantitative control device, internal control lines and components, external indicators and buttons. The standard size of the box is 200mmX300mmX400mm (thickness X width X height), the power supply DC24V or AC220V is optional, and the sensors or the current-breaking devices are directly powered by the inside of the control box. And can output 4-20MA, RS485 and other signals to other control devices, but also an external printing function. 3, cut-off equipment: It can be pump and other power equipment, it can also be solenoid valve, electric valve, pneumatic valve and other equipment, as long as the corresponding power is informed in the selection, we can tailor-made, we can also provide matching equipment. Second, the control process After receiving the signal transmitted by the flowmeter, the dosing controller completes the display and displays it internally. At the same time, all the quantitative control values are set in the controller, and the cumulative value displayed by the quantitative controller reaches the set quantitative control value. The quantitative controller will output the switching signal. At this time, the switch signal is used to control the cut-off devices installed on the pipeline through the matching of relays or contactors, so as to achieve the effect of quantitative control. Third, the product features: 1, only need to measure the sensor, controller and cut off equipment, simple structure, low cost; 2. The control circuit and components in the controller are tailored according to the measuring sensor and equipment required by the customer. The signal line connection is simple, and there is no need to adjust after the scene. The flow meter and the cut-off device are all provided in the controller. Power supply, only need to provide AC220V to the controller; 3, the controller panel has "start", "stop" and "clear" button, and a "state light" display, so the display is intuitive, easy to operate, convenient and easy to learn; 4. The quantitative controller is a full Chinese liquid crystal display. Each time the quantitative control value can be arbitrarily changed as needed, it only needs to be completed in the quantitative controller.