Measuring and batching equipment from the classic PID regulation, feedback, feed-forward loop control gradually developed to batch control, centralized control, object-oriented optimization control, artificial intelligence control gradually developed to multi-parameter multi-objective control, its correction, compensation, algorithms more and more to do a lot of detailed and accurate, and is particularly important.

The Pressure weighing system of the reaction vessel converts the on-site temperature and weight into A 4-20mA current signal through the temperature transmitter and weighing instrument, and transmits it to the analog input port of the PLC. The A/D converter then converts the current signal into a digital quantity. After the CPU's operation processing and range conversion, the actual temperature and real-time weight inside the reaction vessel are obtained. Then, the obtained temperature and weight values are fed back to the PLC controller, and the measured values and the set values are subjected to PID operation to obtain the corresponding control quantity. After being converted into A 4-20mA current signal by the D/A converter, it is output to the actuator (intake regulating valve) to change the opening degree of the intake regulating valve, thereby achieving automatic regulation of the temperature and actual capacity inside the reaction vessel.

Touch screen Explosion-proof floor scale is weighed or loaded on the scale platform, under the action of gravity, the scale platform will gravity transfer to the load cell, resulting in deformation of the elastomer attached to the load cell, then the elastomer strain beam on the strain resistor and the bridge circuit to lose equilibrium, the output is proportional to the weight value of the electrical signals, the linear amplifier will amplify the signals, and then converted to digital signals by the A/D conversion of the weight instrumentation within the microprocessor to process the weight signal and directly display the number of weight. The microprocessor in the weighing instrument processes the weight signal and displays the weight directly. With the configuration of a printer, the weighing data can be printed; with the configuration of a computer, the weighing data can be directly input into the weighing management system for comprehensive management.

Mobile Explosion-proof electronic scale refers to the static input signal, the output and the input quantity of the mutual relationship between. That is, the static characteristics of the sensor can be used as a time-varying algebraic equations, or to the input as the horizontal coordinates of the corresponding output as the vertical coordinates of the characteristics of the curve drawn to describe. The main parameters that characterize the static characteristics of the sensor are: linearity, sensitivity, hysteresis, repeatability, drift, etc.

Intrinsically Safe Explosion-proof electronic scales are tools for determining the mass of an object using Hooke's law or the leverage principle of force. When an object is placed on the scale, pressure is applied to the weighing module, and the load cell undergoes deformation, which results in a change in impedance, and at the same time a change in excitation voltage is used to output a variable analog signal. The signal is amplified by an amplifier circuit and output to an analog-to-digital converter. The signal is converted into a digital signal for easy processing and output to the CPU for arithmetic control. the CPU outputs this result to the display according to the keyboard commands as well as the program until this result is displayed. Existing electronic scales are generally independent, i.e., signal acquisition, processing and display of results are all realized in a single module, and communication with the outside is not possible, i.e., they cannot be used in conjunction with an external system.

Electronic scales are usually used for batch mixing of more than two kinds of raw materials in proportion, and programmed to make the batch mixing do continuous action, so as to achieve the uniformity of the mixing ratio performance. The human-machine interface is used to input the corresponding proportioning parameters, and the signals from each scale are transmitted to the weighing instrument through the load cell, which then converts the signals and connects them to the central controller, which controls the dosing time and amount of each material according to the real-time data from each weighing unit in combination with the set recipes.

Hydraulic plate Explosion-proof electronic scales used in production, processing, transportation and storage of various processes, in the petroleum, chemical, coal, national defense and many other industrial sectors, often may leak or overflow a variety of flammable and explosive gases, liquids and a variety of dust and fibers. These substances mixed with air, may become a mixture of explosive hazards, when the concentration of the mixture reaches the explosive concentration range, once the source of ignition that will cause an explosion and fire and other serious accidents. All electrical equipment used in such hazardous environments must be certified by an organization as having explosion-proof performance.

Wireless Explosion-proof electronic scale mainly displays multiple sensors and weighing instruments and outputs multi-stage control signals. Users can directly access PLC raw material system and terminal control system to realize multi-stage control and automatic control. According to the pre-determined formula, all kinds of different raw materials are mixed proportionally. In order to improve the accuracy and speed of dosage, to ensure the quality of the products and to increase the output, the microcomputer control technology is adopted.

Impact-resistant Explosion-proof floor scale explosion-proof grade ExibllCT4/5 ExiaIICT6, welding using carbon dioxide bonded welding continuous weld, cavity fully sealed, the overall surface chemical process. The standard structure of the floor scale, with four sets of adjustable feet, easy to install. Four high-precision and high-strength sensors with 200% overload resistance (made of alloy steel, superior performance and strong impact resistance). Waterproof junction box with high-precision potentiometer. Zero tracking range, zero setting (power on/manual) range, can be set separately.