The functions of precision digital pressure gauges Chin […]
The functions of precision digital pressure gauges China Punching metal parts Suppliersare widely used in various fields. In addition, it can directly display the pressure changes of each process link, deeply understand the formation of product or medium process conditions, monitor the safety trend of the production operation process, and establish fast and reliable safety guarantees through automatic chains or automatically. Sensor devices play an important role in preventing accidents and protecting personal and property safety, and are called the "eyes" of safety displays.
(1) The range (calibration limit on the dial) of the digital pressure gauge installed on the boiler and pressure vessel should be compatible with the working pressure of the equipment. The range of the digital pressure gauge is generally 1.5-3 times and 2 times the working pressure of the equipment. If the range of the selected digital pressure gauge is too large, the larger the range of the digital pressure gauge with the same accuracy, the larger the allowable error* value, and the greater the deviation observed by the naked eye, which will affect the accuracy of the pressure reading; on the contrary, if the digital pressure is selected If the range of the meter is too small, and the working pressure of the device is equal to or close to the classification limit of the digital pressure gauge, digital pressure will be generated.
The instrument is in a deformed state for a long time, which is prone to deformation, which causes the error of the precision digital pressure gauge2.5 inch Pressure Gauge standard Movement to increase and the service life is shortened. In addition, the range of the precision digital pressure gauge is too small, and the pointer will exceed the range and approach zero during overpressure operation, which will give the operator an illusion and cause more accidents. Therefore, the pressure range of the precision digital pressure gauge should not exceed 60-70% of the scale limit. (2) The working accuracy of the digital pressure gauge is expressed by the percentage of the allowable error of the dial indicator. The accuracy level is usually marked on the dial. The precision digital pressure gauge should be determined according to the pressure level of the equipment and actual work needs.
(3) The diameter of the dial is to enable the operator to see the pressure value accurately, the dial diameter of the digital pressure gauge should not be too small. If the digital pressure gauge is installed higher or farther away from the chromatographic column, increase the dial diameter.
(4) If the medium used by the precision digital pressure gauge is a corrosive medium, different elastic element materials must be selected according to the specific temperature, concentration and other parameters of the corrosive medium, otherwise the required use cannot be achieved.
(5) Pay attention to daily use and maintenance, and regularly check, clean and record.