FAQ

If the instrument is not sealed, the pressure differences of the media and environment are measured by the instrument for measuring pressure, and are not affected by altitude; if the instrument is hermetically sealed, the pressure differences of the media and sealing space inside the instrument are measured by the instrument, and are affected by altitude.

If the media pressure fluctuates, the measuring results of the instrument used for pressure measurement fluctuate and are unstable and difficult to read; a damper can be additionally mounted to keep the instrument pressure stable.

The valve group can fill low-pressure gas at both ends of the differential pressure gauge, and fill high-pressure gas at the high-pressure side, which can prevent unilateral overpressure load during the start-up and operation of the instrument. Besides, zero check can also be carried out when the measuring instrument of pressure is running.  

Almost all instruments and transmitters can be additionally mounted with diaphragm system.  Additional diaphragm system can be selected according to the actual use.