The reason why the pointer of the metal float flow meter does not change

Abstract: The information on the reasons why the pointer of the metal float flow meter does not change is provided by the excellent flow meter and flow meter manufacturers and quotation manufacturers. When the metal rotameter is maintained and repaired on site, it is often seen that the flow indicator remains unchanged and fixed at a certain value. The quick judgment method is to change the position of the local remote display part and the rotor part up and down to simulate the dynamic flow state of the float. this. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the article details of the reasons why the pointer of the metal float flowmeter does not change. When the metal rotameter is maintained and repaired on site, it is often seen that the flow indicator remains unchanged and fixed at a certain value. The quick judgment method is to change the position of the local remote display part and the rotor part up and down to simulate the dynamic flow state of the float. At this time, the metal float is fixed. Using the magnetic principle of the float, the follow-up magnet in the display is coupled with the float. If the float is stuck, the pointer of the moving display part can change the display normally, which proves that the display part is normal. If the pointer cannot be changed, look for the remote display and signal power failure. The reasons for the failure are as follows: 1. The pointer is stuck (1) The glass panel of the metal float flowmeter is damaged and the squeezed pointer is stuck. The treatment method is: disassemble the display table and replace the glass panel; (2) Vibration, when other equipment is overhauled or the instrument is overhauled, the pointer of the instrument is deformed and loosened, so that the deformation of the pointer cannot reflect the actual flow value. The processing method is: replace the installation adjustment with the display table of the same model. 2. The pointer shakes (1) The pointer of the metal rotameter will fluctuate slightly due to the fluctuation of the pipeline and the medium. (2) The pipeline and medium fluctuate slightly due to the unstable operating pressure; the above faults can be found with the control room for the operation reason, adjust the process parameters to stabilize the pressure, temperature and flow, increase the damping of the metal float flowmeter, and improve the process environment to stabilize the flowmeter. 3. Signal power failure (1) Damage to signal amplification and conversion components; (2) Transmission failure of loose screws; (3) DCS control station wiring terminal failure; (4) Control station I/0 module failure. The troubleshooting method is: use“segmentation method”Measure the voltage DC(1-5)V at the terminals behind the control station in the control room, analyze and judge whether it is a field failure or a control room failure. The highest failure rate is that the terminal screws are loose, and the fastening screw failure can be eliminated. The fault cannot be ruled out. You can find the fault of the DCS measurement module according to the terminal line number, and find the fault indicator of the module to see if there is a fault. It can also be used.“substitution method”Replace the measurement module of the same type and see if the display is normal. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'The reason why the pointer of the metal float flow meter does not change'

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