The Range Of Digital Pressure Gauges

The range of digital pressure gauge is usually 1 of the working pressure of the equipment. 5 to 3 times, preferably 2 times. If the selected digital pressure gauge has a large range, the larger the range is, the larger the deviation between the absolute value of the allowable error and the visual observation will be, which will affect the accuracy of the pressure reading. On the contrary, if the digital pressure gauge selected is too small and the working pressure of the equipment is equal to or close to the scale limit of the digital pressure gauge, the elastic element in the digital pressure gauge will be in the maximum deformation state for a long time, which will easily produce permanent deformation, resulting in the increase of error of the digital pressure gauge and decrease of service life. In addition, the digital pressure gauge is too small, the operation of 10,000 overpressure, the pointer over the maximum range close to zero, and operators create illusion, resulting in greater accidents. Therefore, the pressure range of the digital pressure gauge should not exceed 60-70% of the scale limit.