/In order to ensure the reliability and stability of the transmission line, attention should be paid to the following aspects when selecting the installation site:
(1) try to avoid ferromagnetic objects and equipment with strong electromagnetic field (such as large motor, large transformer, etc.) to avoid the magnetic field affecting the working magnetic field and flow signal of the sensor< (2) it should be installed in a dry and ventilated place as far as possible, and should not be installed in a humid and ponding place< (3) avoid the sun and rain as far as possible, and avoid the environment temperature higher than 60 ℃ and relative humidity higher than 95%< (4) choose a place that is convenient for maintenance and activity< (5) the flowmeter should be installed at the back end of the pump, never at the suction side; The valve shall be installed on the downstream side of the flow.
 & nbsp;& nbsp; Electromagnetic flowmeter installation requirements < br > in order to measure correctly, the following requirements should be paid attention to when selecting the position on the pipeline: < br > 1) the sensor can be installed on the straight pipeline, or on the horizontal or inclined pipeline, but the central line of the two electrodes is required to be in the horizontal state< Br > (2) the medium should flow in the full tube at the installation position to avoid full tube and gas adhering to the electrode< (3) for liquid-solid two-phase fluid, it is better to adopt vertical installation to make the liner of the sensor wear evenly and prolong its service life< Br > (4) when the medium at the installation position of the flowmeter is not enough for the pipe, the method of raising the flow half rear end pipe can be adopted to make the pipe full. It is strictly forbidden to install the flowmeter at the highest point of the pipe and the water outlet（ (see Figure) < br > 5) modify the installation method of the pipeline: < br > when the medium flow rate can not meet the requirements, the flowmeter with smaller diameter should be selected. At this time, the tapered pipe or modified part of the pipeline should be used to make it with the same diameter as the sensor, but the front and rear straight pipe sections must at least meet the following requirements: the front straight pipe section is ≥ 5dn, the rear straight pipe section is ≥ 2DN (DN is the diameter) < br > 6) the front and rear straight pipe sections are ≥ 5dn, Back end ≥ 2DN < br > 0