The cumulative flow of the electromagnetic flowmeter includes forward, reverse and net cumulative flow, which are represented by E+, E- and E△ respectively.
1. What is cumulative traffic?
The cumulative flow refers to the flow value accumulated by the electromagnetic flowmeter since installation. It includes forward flow and reverse flow and can be displayed separately. In electromagnetic flowmeters, cumulative flow is a very important parameter, used to judge the operating status and performance of the flowmeter.
2. Symbol representation of electromagnetic flowmeter cumulative flow
1. The symbol of forward cumulative flow is "E+", which represents the cumulative value of forward flow.
2. The reverse cumulative flow symbol is expressed as "E-", which represents the cumulative value of reverse flow.
3. The symbol of net cumulative flow is expressed as "E△", which represents the cumulative value of the difference between forward and reverse flow.
3. The meaning of various flow expressions
1. Forward cumulative flow
Forward cumulative flow refers to the flow of medium from the inlet to the outlet of the flow meter. The cumulative value can reflect the comprehensive effect of the entire flow meter work and is the main basis for judging the performance of the flow meter.
2. Reverse cumulative flow
Reverse cumulative flow refers to the cumulative value of the medium flowing from the outlet to the inlet of the flow meter. It is generally only used in some special occasions, such as Monitoring and metering of reverse flow, etc.
3. Net cumulative flow
The net cumulative flow refers to the cumulative value of the difference between the forward cumulative flow and the reverse cumulative flow. Its value can be positive or negative. It is mainly used. To compensate for errors caused by changes in flow direction.
IV. Conclusion
The symbol representation method of electromagnetic flowmeter cumulative flow complies with international standards, and the meaning of each symbol is also industry consensus. Understanding and mastering the meaning of these symbols can better understand and apply electromagnetic flowmeters.
Hangzhou Economic Development Area，Hangzhou 310018，China
