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，磷肥生产过程中，对检测控制仪表，、阻、变送器、流量计、液位计选择。

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、温度计和液位计等工业PH计 污水处理控制系统。