1.1 Newly put into use pipeline, due to construction reasons, a large amount of stones, mud, sand, hemp wire, welding slag and other impurities may be brought into the pipeline, which will cause the flowmeter core to be blocked or damage the parts, so put the flowmeter into use The bypass pipeline should be used to flush the pipeline with water;

1.2 Prevent water from contacting the meter head to avoid malfunction;

1.3 The time interval between two adjacent flashes on the instantaneous flow rate display is an instantaneous test period. When adjusting the flow rate, the first value displayed on the instantaneous display screen is inaccurate. This is due to the dissatisfaction of a complete test period. As a result, the value displayed thereafter is the actual instantaneous flow value;

1.4 When the color of the numbers on the LCD display becomes obviously lighter or the voltage is lower than 2.4V, new alkaline batteries should be replaced in time, and the positive and negative poles of the batteries should not be connected incorrectly.