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Description of the installation method of the electromagnetic flowmeter

1. Horizontal and straight-line mounting The sensor can be mounted horizontally and in a straight line, but it should be ensured that the influence of deposits and air bubbles on the measuring electrode is avoided and the axial direction of the electrode is kept good. When installed in a straight line, the fluid should flow from bottom to top. The sensor cannot be installed in the high position of the pipe, which is easy to accumulate air bubbles.
2. Ensuring full pipe installation Ensure that the flow sensor is filled with the fluid being measured and that it is not full. If the pipe is not full or the outlet is vented, the sensor should be mounted on a siphon.

3. Installation between elbows, valves and pumps To ensure the stability of the measurement, straight sections should be placed before and after the sensor, the length of which is given in the figure below. If this is not possible, a stabilizer should be used or the cross-sectional area of the measuring point should be reduced.

4. The sensor cannot be installed in the water inlet of the pump. To avoid negative pressure, the sensor cannot be installed in the water inlet of the pump, but should be installed in the water outlet of the pump.
5. The inlet and straight sections of the sensor are ideal. The installation location should be sufficient to have enough straight sections before and after the measurement point. The straight pipe section of the inlet shall be ≥5D, and the straight pipe section of the outlet shall be ≥3D (D is the nominal diameter of the sensor). The plug-in inlet straight pipe section should be ≥20 D, and the outlet straight pipe section ≥7D (D is the sensor nominal diameter)

6. Installation when the pipe outlet is vented When the outlet is vented, the sensor should not be installed where the pipe is emptied and should be installed at a lower location. When the sensor is installed under the pipe, the sensor should be filled with liquid and the empty pipe state should not occur.

7. Series Installation and Parallel Installation If there are several sensors that need to be serially connected in series on the same pipe, the distance between each sensor should be at least 2 sensors. If more than two sensors are installed in parallel with each other, the distance of the sensor must be greater than 1 m. The flow signal generated by the sensor is very small, and only a few millivolts at full scale, so the sensor ground should be good.

a. The sensor is mounted on a metal pipe (the inner wall of the metal pipe is not insulated).
b. The sensor is mounted on a plastic pipe or on an insulated lining pipe. A grounding ring, or a grounding flange, or a short pipe with a grounding electrode should be installed at both ends of the sensor.

8. Short-circuit the measured medium flowing in the tube to the ground, and have zero potential. Otherwise, the electromagnetic flowmeter cannot work normally.

The above is the installation method of the electromagnetic flowmeter. If you have an address that you don't understand, you can contact us. Let's learn together.

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