Soap film flowmeter calibration | Soap film flowmeter calculation

『Calibration of soap film flowmeter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)

1. The function of soap film flowmeter

Its accuracy is much better than the indirect judgment usually made by eye and hand stopwatch. By selecting probes and glass tubes with different ranges, users can achieve the measurement of gas or liquid flow rates within the range of 0.1mL/min to 50L/min. The circuit control of the single sock swimming element itself can achieve multi range conversion, thus having a wider range of applications. The instrument itself has a calibration function, and users can request on-site self calibration. The operation is convenient and reliable, and all indicators have been tested to meet the requirements.

2. How to use digital soap film flowmeter

1. Dilute with some white cat cleaner.

. Pour it into the soap film flow meter (as long as there is drip irrigation below to fill it), and connect the gas pipe next to it to calibrate the flow meter. When pressing the 2 buttons and pinching the dropper at the same height, a soap film bubble will be squeezed out from the inside. When it reaches the starting point, it will automatically start the drowsiness timer, and when it reaches the desired set position, it will automatically stop. If he has built-in computing, he can display the traffic. If there is only time, then you can divide the volume by time and multiply it by 60 to get ml/min. If multiplied by 3600, you get ml/h.

3. Flow calibration process of air sampler

The core of air sampler flow calibration lies in standardizing the operating process and ensuring equipment accuracy, with errors controlled within ± 5%.

. 1. Preparation work: Check the status of the instrument: Confirm that the appearance of the sampler is intact, the battery is sufficient, Calibration of soap film flowmeter

or the power supply is normal, and clean the inlet/outlet to avoid blockage. Calibration equipment calibration: When using soap film flow meters or electronic flow meters, it is necessary to ensure that the equipment has passed the metrological certification and is within the validity period. 2. Connect the calibration equipment to the sampler according to the instructions. If using soap film flow meters, ensure that the interface is sealed to prevent air leakage from affecting the accuracy of measuring branch size and orange volume. 3. Parameter settings: Set the sampler to the flow point that needs to be calibrated (usually covering low, medium, and high levels), start the equipment and wait for stable operation. 4. Flow measurement and adjustment. Initial flow measurement: Record the actual flow value of the calibration equipment and compare it with the set value of the sampler. Error adjustment: If the deviation exceeds the limit, gradually adjust the flow rate to approach the target value through a knob or software. Repeat the measurement at least 3 times for each flow point to ensure data consistency. 5. Calculate the average of the measured values at each flow point and calculate the calibration error: (actual average value - set value)/set value x 100%. If the error exceeds ± 5%, it needs to be readjusted and retested. 6. Record and verify complete calibration data (including set values, actual values, mean values, and errors), prepare a report with equipment delay information and calibration date. After completing the calibration, randomly select flow points for retesting to verify the reliability of the results.

4. Calculation of soap film flowmeter