The weightless scale instrument is mainly used to measure the weight of some items. Due to the very good performance of the weightless scale instrument, it has become more and more applications in recent years.Weightless scale instrumentThe working principle is a quantitative feeding device that uses the material reduction per unit time to calculate the material flow. It converts the weight of the material in the silo into a voltage signal through the load sensor installed on the silo. This signal (mv) The analog of the instrument The input channel AD port is input to the instrument, and the lost weight of the silo per unit time, that is, the instantaneous flow rate, can be obtained by calculating. When there is an error between the instantaneous flow rate and the set value, the DA output of the instrument can be adjusted to change the feeding speed until the error is reached. zero.

The weightless scale instrument is used as the input amplifier of the load cell, which enables the display to have excellent zero point stability performance and gain stability performance. The strength of the filter can be adjusted optionally to control the impact caused by the vibration of the mechanical system, thereby improving and Guarantee high-speed and accurate measurement. The weightless scale instrument adopts the digital interval method, which simplifies the operation process of the initial calibration. Various data such as set values, correction values, and accumulated values ​​are stored in FRAM, even in the case of sudden power failure. No data will be lost. The monitor has a self-check function to monitor the CPU, A\/D conversion, I\/O input and output ports and the operation of the display chip, so that it has the function of preventing misoperation, thereby improving the reliability of the system. The all-digital keyboard makes the operation of the instrument easier and more convenient

The application range of weightless scale instrument is many chemical, rubber and plastic, pharmaceutical and other industries ingredient production.