- Ask if the flow rate at the site is lower than the lower limit, then change the small flow rate to 0
- If there is a stable frequency and FinFL=XX.XHZ is displayed, it means that the frequency has been cut off, and it is necessary to modify the appropriate frequency band into the parameter, if it is 0.0HZ, you can continuously knock on the metering rod or the meter body to see if the frequency increases.
- Pulse equivalent active output, op-amp output, pay attention to the position of the rear terminal board when setting the equivalent.
- Check that the dial is correct, increase the sensitivity and amplification, and consult the after-sales staff for instructions on dialing.
- Tap the stem or body of the meter continuously to see if there is a frequency at the sub-interface.
- Tap the stem or body of the meter continuously to see if there is a flow.
- Dismantle the circuit board and check if the probe wires are intact or connected properly.
- Return to the factory for repair or replacement of the circuit board