● Whether the customer has set the parameters
● Is the installation in accordance with the requirements
● Whether the flow rate is within the range
● Whether the temperature and pressure are normal if they are abnormal check steps 5 or 6
● There are many impurities on the strainer or filter at the front end, another phenomenon at this time is that the pressure loss becomes larger
● Long-term use, bearing wear and tear, return to the factory for repair
Solution:
● Adjust the coefficient, which is inversely proportional to the flow rate
● Return the instrument to the factory for testing and repair