1： Pointer stuck

Metal tube float flowmeterOpening the valve too quickly during use causes the float to rapidly impact the stopper, causing deformation of the stopper and locking the float. But it cannot be ruled out that the float may get stuck due to the lack of concentricity between the float guide rod and the stop ring. When handling, the instrument can be removed, the deformed stopper can be removed and shaped, and the concentricity with the guide rod can be checked. If it is not concentric, it can be corrected. Then, the float can be installed and pushed by hand, feeling that the float is unobstructed up and down. In addition, when installing the metal tube float flowmeter, it must be installed vertically or horizontally, not tilted, otherwise it may cause the meter to jam and bring measurement errors.

2、 Pointer jitter:

1. Slight pointer shaking of metal tube float flowmeter: generally caused by medium fluctuations. Increasing damping can be used to overcome it.

2. Moderate pointer shaking: usually caused by the flow state of the medium. For gases, it is generally caused by unstable operating pressure of the medium. Voltage stabilizing or current stabilizing devices can be used to overcome or increase the air damping of the float flowmeter.

3. Severe pointer shaking: Mainly due to medium pulsation, unstable air pressure, or the pressure, temperature, and flow rate of the gas operation state provided by the user not matching the actual state of the metal tube float flowmeter, resulting in significant differences and causing the float flowmeter to exceed its range.