6. electrostatic and electromagnetic interference. Electrostatic and electromagnetic waves through electromagnetic flowmeter sensors and signal lines between the converter is introduced, usually if a good shielding (such as the signal line with shielded cable, the cable placed in protective iron pipe) is preventable. However, prevention of strong electromagnetic waves have encountered an invalid instance, when the converter closer to the new electromagnetic flowmeter sensors nearby sales, shorten the signal cable connection, or use no external cables integrated instrument. Through the outlet valve to control water switch, open the valve timing, when the timing to close the valve after the measurement of the weight of the water bucket can know the flow of water per unit of time. Also known as the time of the gravimetric method. Before measuring electromagnetic flowmeters must first exhaust the new principal, professionals need to address new electromagnetic flowmeter price takes about half an hour to put the pipeline gas drained. If you do not put the new gas pipeline drained electromagnetic flowmeters, that would lead to a decline measurement accuracy. There must be a full tube inside the pipe. So this paper the flowmeter placed obliquely upward state, it can guarantee a full pipe flow meter, especially in zero time. The new distribution of electromagnetic flowmeters, the force measuring instrument since the new electromagnetic flowmeter, the new electromagnetic flowmeter measurements provided by the Shanghai Automation Instrumentation Co., Ltd. Shanghai Automation Instrumentation Co., force measurement (www.licesh.com) is the Shanghai Zhabei District, flow meters leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Since the force measuring device leadership with the staff warmly welcome all inquiries negotiations to create the force measuring instrument since a better future.