A signal (termed the "measured value") which is proportional to the pressure difference is then transmitted by means of a "differential pressure transmitter" 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。
Based on the paperless recorder, this paper introduce a method of Internet connectivity with the 89c52 MCU and the RTL8019AS network controller.
本文以无纸记录仪为例，详细阐述了一种以89c52单片机和RTL8019AS网络接口芯片实现的网络化方案及其软硬件实现。
Using the central control system PLC, intelligent temperature controller and pressure gauge to replace the three pen recorder to realize the closed loop circulation and record of outer temperature.
采用中央控制PLC、智能温控器及压力仪表等替代原进口三针记录仪，实现外温的闭环控制和记录；
Using the central control system PLC, intelligent temperature controller and pressure gauge to replace the three pen recorder to realize the closed loop circulation and record of outer temperature.
采用中央控制PLC、智能温控器及压力仪表等替代原进口三针记录仪，实现外温的闭环控制和记录；
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