Flow sensor fault detection method introduced

Troubleshooting method:

1. Resistance method a. Power fuse, excitation insurance on and off; b. Signal cable, excitation cable on and off; c. excitation coil on and off and resistance; d. Insulation resistance of the excitation coil to the ground; e. Symmetry measurement; f. Insulation resistance of electrode to ground; g. Resistance of power transformer.

2. Current method measuring output current, excitation current 3. Voltage method to determine the working power 4. Alternative methods such as the exchange of the converter 5. Analog signal method Using the analog signal generator to provide flow signal to test the flow sensor.

6. The waveform method is familiar with testing keypoint waveforms on a line basis.