First of all, in the summer, the main need to pay attention to the arrester grounding wire length should not exceed 1M, greater than the cross-sectional area 6MM square multi stranded copper core insulation wire. If no grid near, should be a simple grounding in lightning arrester near.

Then, should pay attention to the power supply for the 220V one-way alternating current, air switch installed in the meter box, lightning arrester and the air switch is connected in parallel, the wire from the air switch out followed by a three socket.

Finally, should pay attention to the signal cable between the converter and the sensor length cannot be greater than 50M, and the signal cables must be galvanized pipe sleeve wear. Such as galvanized pipe in the air, the galvanized pipe wire should be reliable grounding, grounding resistance of less than 10.

Because is not affected by the fluid density, viscosity, temperature, pressure and electrical conductivity changes of electromagnetic flowmeter measurement; measuring tube without obstructing the flow components, no pressure loss, lower straight pipe section. The sensor has a wide selection of lining and electrode materials. Converter using a novel excitation mode, low power consumption, zero point stability, high accuracy. So do the electromagnetic flowmeter lightning protection measures are very important. The following re introduced a cleaning method for electromagnetic flowmeter electrode.