(1) When the measured medium is a compressible fluid, and the temperature and pressure of the medium on the spot change greatly, it is recommended to use a vortex sensor with pulse signal remote transmission and a flow totalizer with temperature and pressure compensation. Pressure transmitter, temperature transmitter or Pt100, need to be purchased separately by the user.

 

(2) The gas mass flowmeter is installed in a room with a better environment and does not require remote signal transmission. It only needs to read the flow value on the spot, and the installation position of the flowmeter is convenient for operation and data reading. It is recommended that users choose battery-powered on-site direct Reading type vortex flowmeter. However, if the flowmeter is installed outdoors and exposed to the atmosphere, battery-powered on-site direct-reading vortex flowmeters are generally not selected.

 

(3) When the installation environment of the mass flowmeter is poor or the installation location is not convenient for on-site reading of the flow value or centralized management, it is recommended to use a sensor that outputs a pulse signal with a flow totalizer, or with a 4-20mA standard current The output vortex transmitter.

 

(4) When it is necessary to observe the flow on site and transmit signals remotely, it is recommended to use a vortex transmitter with direct reading on site and a 4-20mA output at the same time.

 

(5) When there is no need to read on site and only standard signals are transmitted remotely, it is recommended to use a vortex transmitter with a 4-20mA standard current output.