Voltage fluctuations. Large-capacity load start, stop, causing the grid voltage transient ups and downs. Instantaneous phase voltage imbalance can cause a voltage waveform distortion, resulting in high-order harmonic generation intelligent electromagnetic flowmeter, although the spectrum of smart electromagnetic flowmeter lower prices, but the energy is huge. 10. The high-frequency oscillating circuit. Includes a transmitter, a receiver and a local oscillator clock oscillation circuit like the fundamental frequency and its harmonics, frequencies from several tens kHz to several hundreds MHz. 11. household appliances, office appliances. Where the series motor commutator, electronic controllers, timers etc will power and the surrounding space electromagnetic interference, the interference spectrum from tens of thousands to hundreds of megahertz He. Electrical switching operation will form uh uh cracking sound ("Oh, uh cracking" sound similar result in the issue of radio refers to electrical equipment switch) interference. 3, intelligent electromagnetic flowmeter calibration is completed after verification, to test the accuracy of the meter. A guaranteed level still highly intelligent electromagnetic flowmeter distribution, by adjusting the water valve small smart meter electromagnetic flowmeter pictures, a slight reduction in the flow a little. Wait 5 minutes, then measure the flow and other flow stability values. By measuring the liquid mass flow calibration to obtain the measured flow rate and the converter displays do data analysis, obtained relative error. Intelligent electromagnetic flowmeter manufacturers | force measurement since the instrument (certified) | Intelligent 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.