First, an overview 
 The AMDL quantitative control system consists of flow sensors, quantitative flow control device, solenoid valves and distribution boxes and other devices. Quantitative measurement of the fluid can be realized, quantitative filling, dosing and process control. 
 Second, the principle 
 The beginning of the quantitative measurement of flow quantitative controller instructs the solenoid valve opens and fluid into the flow sensor. Flow sensor flow signal to the quantitative Meter Controller and start the measurement, Totalizer when the flow reaches the set value, quantitative controller issued a directive to the solenoid valve is disconnected, return to the initial off. 
 The flow sensor and solenoid valve according to the site desired flow and pipe selection, press the Figure and quantitative control connection 
 Traffic quantitative control of the instrument works 
 According to the flow sensor of the pulse output (current) formula Q = N / K 
 Where Q -------- cumulative flow (in liters) 
 N -------- traffic signal pulse (time) 
 The K------- instrument constant (/ L) 
 The instrument constant placement controller, the controller settings automatically calculate the number of pulses corresponding (current), change the state of the built-in relay control device startup, making the control valve is open, the controller from the sensors pulse (current) signal count to reach the set amount to restore the original state of the relay control valve will be closed in order to achieve a flow within the pipeline quantitative (volume) control. 
 Third, the technical parameters 
 ? 
 Measuring media: liquids or gases, determined by the sensor 
 ? Input signal: 1-4000Hz square wave low 4.5V ,4-20ma 
 ? Quantitative range: 0.1-999999 l 
 ? Can be placed in the instrument constant maximum value: 999 999 Ci / l 
 ? For the sensor to provide: 12VDC, 50mA power 
 ? Environmental conditions: 0-45 ° C, relative humidity <85% 
 ? Power supply: 220V (187-242) the AC 50Hz 
 ? 11 LCD display cumulative total quantitative value and instrument parameters, four LCD displays the instantaneous value. 
 ? Dimensions: W 160 80 deep 150 
 ? Cumulative total, the instrument constant and the previous quantitative value of the power-down protection, protection of more than 10 years. 
 Warranty period of twelve months. 
 Fourth, the quantitative control technology requirements 
 Quantitative increase in the water to the jar (such as 10L) Flow Totalizer (quantitative control device) on Input 10L of quantitative value, and then click the start button (or Enter key), flow totalizer relay is closed (the solenoid valve is opened, add water, lights), flow totalizer begin to accumulate, when the cumulative number to reach 10L, flow totalizer instrument disconnect relay (solenoid valve closed, add water, the lamp is off), the quantitative completed. 
 To conduct the first quantitative control, need to look at cleared the button, and then more steps, such as the middle need to pause, press the stop button. If the quantitative value of the last consistent and press the start button. 
 5, control instrumentation requirements 
 Controller input 4-20mA or pulse signal with an external start, stop, clear, two relay outputs. Relay need to add an intermediate relay to the solenoid valve, solenoid valve 24V power supply, need to increase a 24V switching power supply. 
 Note: LEDs, buttons, intermediate relay, air switch, AC contactor (can be saved), and quantitative control (LCD), control box, composed of a control system, the control site (24VDC) solenoid valve to start or stop, Also to add a total power switch, flow meter, solenoid valves, to do according to site requirements. (Accessory to the user with) 
 The detailed design of programs and photographs, please contact sales staff!