Metal tube rotameter is suitable for petroleum, chemical industry, water treatment, and other fields, used for flow measurement of various medium conditions. There is a problem of no current output,
1. First check to see if the wiring of the gas rotor flowmeter is correct;
2. Whether the LCD displays, if there is no output, the output tube is mostly broken and the circuit board needs to be replaced;
3. The calibration value is lost. Due to the failure, the calibration data of the meter will be lost, and there will be no output current, and the current will remain unchanged. Solution: The data recovery operation can be used. If it does not work, you can set the data in the password first.