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『Guangxi flowmeter』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)
1. How to deal with the continuous decline in the displayed value of the flow meter?
If the displayed value of the flow meter continues to decline, it is necessary to first investigate the scenario type before targeted treatment. Common treatment solutions are sorted by priority as follows:
1. Quick troubleshooting of daily household/civilian flow meters 1.1 First, confirm whether the flow meter itself is faulty by switching the flow meter display mode, restarting the device (after power off, let it sit for 10 seconds and then power on), and check whether the value returns to normal;
; Some household flow meters have a calibration reset function, which can be operated according to the product manual. 1.2 Check if there is any liquid leakage in the pipeline. Check the connection pipeline interface and pipe wall before and after the flowmeter to see if there is any looseness, cracking, or dripping; If it is a water pipe flow meter, all water equipment can be turned off to observe whether the flow meter is still running slowly. If it continues to decline, there is a high probability of hidden water leakage. 1.3 Confirm whether the usage scenario is normal, such as gas flow meters. It is necessary to confirm whether the stove and water heater are burning normally. If they slide down after long-term disuse, it may be due to slight leaks in the pipeline; If Nalu is a water meter, check for toilet leaks and hidden water equipment idling. 2. Professional treatment of industrial/commercial flow meters. 2.1 First calibrate the accuracy of the flow meter, contact the equipment manufacturer or third-party measuring institution, use standard media to benchmark the flow meter, and confirm whether there is a numeric
2. What are the grade standards for flow meters?
The accuracy grade of flow meters is divided by the percentage of allowable error to the full range. The current mainstream in China follows national/industry specific standards, and different types of flow meters correspond to different accuracy grade classification rules.
1. General grade classification logic.
The core criterion for determining the accuracy level of a flow meter is the maximum allowable error, and the mainstream method is to use the full-scale reference error (% FS) of slag lead, which is the percentage of the error value to the full-scale scale of the flow meter; Some high-precision flow meters may use indication error (% RD), which is the percentage of the error value to the actual measured value. The smal