液位计

The paper introduces the corrosion prevention of the automatic instruments for thermopair,resistance thermometer, transmitter, flowmeter levelmeter in Chemical processes.

介绍工业自动化仪表在氮肥，磷肥产过程中，对检测控制仪表，热电偶、热电阻、变送器、流量计、液位计的选择。

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.

本文主要计了一种利用PLC与流量计、PH计、温度计和液位计等组的工业PH计 污水处理控制系统。