Factory Direct Reading Sight Glass Level Gauge Water Tank Level Gauge Liquild Level Indicator

The ability of an instrument to maintain certain performance over time under specified operating conditions is called stability. Instrument stability is a performance index that instrument workers in chemical enterprises are very concerned about. Due to the relatively harsh environment in which chemical enterprises use instruments, and the relatively large changes in the temperature and pressure of the measured medium, the ability of certain components of the instrument to remain unchanged over time will be reduced and the stability of the instrument will be reduced when the instrument is put into use in this environment. There is no quantitative value for instrument stability, and chemical enterprises usually use instrument zero drift to measure instrument stability.

In engineering, instrument performance indicators are usually described by accuracy (also known as accuracy), variation, and sensitivity. Instrument workers usually calibrate instruments for accuracy, variation, and sensitivity. Variation refers to the maximum difference between the indicated values of the instrument when the measured variable (which can be understood as an input signal) of the instrument reaches the same value from different directions multiple times, or the extent to which the measured parameter changes from small to large (positive characteristic) and the measured parameter changes from large to small (reverse characteristic) with the external conditions unchanged. The difference between the two is the instrument variation.