Electromagnetic flowmeter selection need to pay attention to what matters?

　　First, the electromagnetic flowmeter on the installation before and after the straight pipe requirements, only than other types of flowmeter requirements to some low, but the key point to meet: is full of pipe. Not full of pipe in the case of easy to cause the flowmeter jump.

　　Second, the measurement range of electromagnetic flowmeter is limited, many users buy electromagnetic flowmeter, often compared to it and the water meter, thought it can measure the flow rate is very low, in fact, when ordering can not be ordered according to the original calibre of the pipeline to order, according to the actual flow rate to choose the calibre of the instrument.

　　Third, the electromagnetic flowmeter also has a protection level, if the user of the instrument installation environment requirements, the installation location in the underground well or other wet places, it is recommended that the user choose the split type. So as not to choose the wrong instrument to cause damage.

　　Fourth, the electromagnetic flowmeter can measure corrosive liquids, but the initial order users should correctly provide the name of the medium and its properties, so as to avoid errors in the selection of electrode materials in the selection, resulting in the sensor in the later use of the process of scrapping, to the user's inconvenience and economic losses.

　　Fifth, although the reliability of electromagnetic flowmeter is relatively good, usually not damaged, but because of its principle, the sensor electrode surface has been in contact with the liquid, over time, the electrode surface is more susceptible to pollution. So the electromagnetic flowmeter in the usual use, the user has the conditions to dismantle, it is recommended that a year to a year and a half between the electrodes removed to clean the electrodes, in order to ensure that the flowmeter machine measurement accuracy. Any instrumentation is the need for maintenance, electromagnetic flowmeter is no exception.

　　With the development of the industrial sector, the demand for instrumentation increased, the instrumentation industry continues to develop, the electromagnetic flowmeter is also more and more widely used to adapt to the needs of different industries, petroleum, chemical, sewage treatment and so on.