Quantitative control system

Application background of quantitative control system

Automatic control has become a trend as workers' wages keep rising.At present, many enterprises will use or need to improve one of the projects, it has simple operation and easy to learn, directly replace manual material making, manual ingredients, and at the same time, the system display intuitive, manual control and other features.It is especially suitable for the control of oil, water, medicine, dosing, water injection and liquid.At present, some enterprises that still use manual operation of canning /dosing, but don't want to invest too much cost, and want to improve work efficiency, suggest adopting this system.

The quantitative control system can receive various flow meters and other signals and combine with the corresponding control equipment to form the quantitative control system to achieve the functions of quantitative automatic batching and canning .

System composition

1、Measurement sensor:

It can be the Flowmeter installed on the pipeline, the liquid  level  gauge  or  the weighing sensor on the tank, which is the basis of the control and directly affects the effect of the control, so the basic requirement is that the higher the measuring precision of the sensor, the better the signal output function. At the same time, there are many kinds of metering sensors, so it is most important to select the appropriate measuring sensors, which should be selected according to the actual working conditions of the site, and other technical requirements such as explosion proof, anticorrosion, installation mode should be considered.

2、Quantitative control box：

Contains intelligent quantitative control instrument, internal control circuit and components, external control buttons and indicator lights, power supply DC24V or AC220V optional, sensors or cutoff equipment have direct power supply inside the control box. And can output 4-20 m Agna RS485 signal to other control equipment, also can add printing function.

3、Cutoff equipment:

It can be power equipment such as pumps, or equipment such as electromagnetic valve, electric valve and pneumatic valve. As long as we tell the corresponding power when selecting the model, we can customize it, or we can provide the equipment.

Control process

After receiving the signal of the measurement sensor, the quantitative controller completes the accumulation and display internally, and sets the required quantitative control value internally in the controller. When the accumulative value displayed by the quantitative controller reaches the set quantitative control value, the quantitative controller outputs the switching quantity signal.At this time, the switch signal is used to control the cutoff device installed on the pipeline through the relay or contactor, so as to achieve the quantitative control effect.

Product features

1. Only the metering sensor, control box and cutoff equipment are needed, the structure is simple and the cost is low;

2. The control lines and components in the control box are customized according to the measurement sensors and equipment required by the customer. The signal lines are simple to connect, and generally do not need adjustment after the scene. The power supply is provided in the control box for the Flowmeter and cutoff equipment, etc. Only need to provide AC220V to the control box;

3. The control box panel is provided with buttons of "start", "stop" and "reset", and a "status indicator light" is displayed. Therefore, the display is intuitive, simple, convenient and easy to learn;

4. The quantitative control instrument is liquid crystal display in Chinese. Each quantitative control value can be changed as required, and only needs to be operated within the quantitative control instrument.