A signal (termed the "measured value") which is proportional to the pressuredifference is then transmitted by means of a "differential pressuretransmitter" to the recorder-controller.
正比于压差的信号(称为测量值)通过“压差变送器”被送至记录控制器。
2
By presenting the theory of LD301 differencepressuretransmitter and the solution for zero point excursion, its performance and advantage are introduced.