EMF5000 electromagnetic flowmeter with four electrodes, The built-in grounding electrode, For non conductive pipe without additional power connection ring.

It does not contain a battery but instead contains two conductive materials that, when they become wet in the stomach, can power the sensor for a short amount of time.

While graphite content in electrically conductive concrete applied in a grounding engineering is 10%, the power-frequency grounding resistance of the grounding devices is less than 0.