Electromagnetic flow transmitter electrode measured out a few millivolts ac potential, potential liquid inside the transmitter is based. In order to make the liquid level transmitter with the potential to stabilize and keep other potential fluid, in order to guarantee a stable measurement, the transmitter housing with a metal pipe at both ends should be well grounded, the converter housing should also be grounded. Ground resistance should not be greater than 10, can not be shared with other electrical equipment grounding wire. If the transmitter does not guarantee a good contact with the housing and the metal pipe, the application of the metal wires are connected. Then grounded.

 

In order to ensure full measuring tube inside the transmitter measured media, variable Diego is best mounted vertically, flow from bottom to top. Especially for liquid-solid two-phase flow, must be mounted vertically. If the site only allows horizontal installation, you must ensure that the two electrodes at the same level

In order to avoid signal interference signal between the transmitter and the converter must use shielded wire transfer. Do not allow the signal and power cables in parallel on the same cable pipe. Signal cable length is generally not exceed 30 m.

 

In order to avoid the influence of flow velocity relative measurement, the flow control valve should be set at the transmitter downstream. For transmitters for small diameter because the distance from the center of the electrode to the meter inlet end has a length equivalent to several times the diameter D, so you can not do the provisions of straight pipe upstream. But for larger diameter flowmeter, the general should be more than 5D upstream straight pipe upstream and downstream straight pipe requirements generally do not do.