This paper analyzes the metering error of floating roof tank caused by the floating tray to guide the installation of liquidometer.

对浮盘所造成的浮顶罐量误差进行分,指导液位仪装。

This article mainly designed one kind to use composition and so on PLC and flowmeter, PH idea, thermometer and liquidometer industrial sewage processing control systems.

本文主要一种利PLC与流量、PH、温度和液位等组成的工业PH 污水处理控制系统。