What Are The Reasons Why The Electromagnetic Flow Meter Shows Negative Values

- Mar 30, 2020-

If the flow of the electromagnetic flow meter shows negative value during installation or operation, there may be the following reasons :1.Treatment: reinstall.2. The signal line of the sensor is connected inversely. As the electromagnetic flow meter has the function of measuring the positive and negative flow, it shows the reverse flow.Treatment: replace the signal line.3. The measuring pipe is empty or not filled with gas.At this time the flow meter will show negative Numbers or flow value fluctuates.Treatment: let the pipe filled with the measured medium, so that the flow meter has the measuring conditions.