There are three main possibilities:
- One is that the sensor has no output. Solution method:For flowmeters with batteries, check whether the batteries are installed securely, whether the contacts are good, and whether the batteries are electricity. For the external power supply, check whether the connection between the connecting wires is intact and whether the wires are conductive,
the positive and negative poles are reversed, and the external power supply is normal.
2. And the other is that the conversion circuit board is faulty.
Treatment method: Return to the factory for repair.
3. The display is damaged
Treatment method: Return to the factory for replacement.
