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

对盘所造顶罐量误差进行了分析,用以指导液位仪装。

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.

本文主要设了一种利用PLC与流量、PH、温液位等组工业PH 污水处理控制系统。