Ningbo flowmeter | How to adjust the flowmeter to display historical data

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1. Detailed explanation of calibration method for Ningbo Chuangsheng turbine flowmeter

Detailed explanation of calibration method for Ningbo Chuangsheng turbine flowmeter

1. Preparation before calibration 1 Environmental requirements: humidity should be maintained at 40% -60%, avoiding direct sunlight and airflow interference. Power supply voltage fluctuations should be less than ± 1%. Equipment inspection: Check whether the flowmeter model matches the calibration requirements; Check if calibration equipment such as standard flow sources and pressure gauges are within their validity period; 3. Calibration standard selection: The accuracy of the standard flow source should be at least one order of magnitude higher than that of the calibrated flow meter (for example, piston calibrators are suitable for low flow rates, and mass flow meters are suitable for high-precision scenarios).

2. Calibration Process 1 Zero point calibration: Close the valve to ensure the fluid is stable without turbulence, set the flow rate to zero, and record the initial reading. If there is a large deviation, it is necessary to check for air leakage or equipment failure. Adjust the zero compensation parameter to make the output signal the reference value

2. Range calibration: Step by step increase to 10%, 30%, 50%, 70%, and 90% of the range. After each point runs stably for 30 seconds, record the data three times and take the average. Calculate the deviation (formula: (instrument value standard value)/standard value × 100%), and correct the instrument coefficient or linearization parameter through calibration software

3. Repeatability test: measure the same range point continuously five times, calculate the standa

III. Calibration Result Processing 1 Data recording: Establish a data table containing calibration points, standard values, instrument values, and deviations, save the calibration curve graph, and label the linearity error (maximum deviation/full scale × 100%). 2. Calibration certificate: Generate a certificate and indicate the calibration date, equipment model, calibration range, and results. Attention: The specific steps may vary slightly due to model differences. Please refer to the equipment operation manual and manufacturers instructions.

2. Which brand of flowmeter is good? The following ten brands of flow meters have good quality and belong to the top ten brands of flow meters: Testo Flow Meter: As a well-known measuring instrument brand, Testos flow meter products are known for their high precision and stability. In industrial and laboratory environments, the Testo flowmeter can provide reliable flow measurement data and is suitable for various gas and liquid measurement scenarios. Its product design focuses on user experience, is easy to operate, and has multiple functions such as data recording and remote transmission, making it convenient for users to manage and analyze data. MEACON flowmeter: MEACON has rich experience and technical accumulation in the field of flow measurement. The brand has a wide range of flowmeter products, covering various types such as vortex street, electromagnetic, turbine, etc., which can meet the needs of different industries and application scenarios.

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