How to choose a micro flow meter

Abstract: The information on how to select the micro flow meter is provided by the excellent flow meter and flow meter production and quotation manufacturers. At present, there are relatively few small flow (micro) flow meters on the market, and the modeling is more difficult. The following models we choose are more representative, and the results are satisfactory through practical tests. These flowmeters are widely used in various laboratories. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. At present, there are relatively few small flow (micro) flow meters on the market, and the modeling is more difficult. The following models we choose are more representative, and the results are satisfactory through practical tests. These flowmeters are widely used in various laboratories. 1. The application of electromagnetic flowmeter small pipes is very successful. Beijing Architectural Design and Research Institute uses 20mm and 32mm pipes to detect small flow in the laboratory, and its accuracy reaches±0.5% electromagnetic flowmeter can achieve the minimum DN6mm flowmeter. 2. The micro flow meter is a novel micro flow meter developed according to the market demand and on the basis of absorbing advanced technology at home and abroad. It has the characteristics of small flow, simple structure, high measurement accuracy, convenient use and long service life. The display instrument has the functions of displaying total flow, cumulative flow, instantaneous flow and zero return, and can realize on-site display and remote transmission functions, especially suitable for accurate measurement of small flow of boiler fuel, oil, chemical and other liquids. The micro flow meter made of all stainless steel can measure the micro flow of various liquid foods such as milk, vegetable oil, and acid and alkali liquids. Technical parameters: Diameter: DN6-10mm Pressure: PN0.1-2.5MPa Accuracy: 0.5% Flow Range: 5-500L/h Specially designed for ultra-low flow gases. Suitable for all inert and slightly corrosive gases, especially suitable for use in biogas technology or leak rate detection. Its product features are: 1. Small measurement flow can reach 1 ml/day (ml/day) 2. Measurement resolution: 1mL Display resolution: 1uL3, Measurement accuracy:±3% 4. Suitable for inert gas and moderately corrosive gas (such as biogas, biogas, etc.). 5. Material: Plexiglas (PMMA)/Polycarbonate (PC) 6. Digital counter with program calibration function 7. Running on battery; battery life is 5-7 years 8. Simple maintenance Measurement principle The gas to be measured passes through The inlet nozzle rises into the capillary tube of the Lead trace gas meter. The meter is filled with sealing liquid. The gas to be measured rises in the form of small bubbles and converges in the measuring cell, which is filled with sealing liquid and is inclined at a certain angle to the mandrel. The measuring cell consists of 2 test cells, one of which is filled with rising air bubbles. When this test cell is full, the measuring cell suddenly flips due to buoyancy, and the other test cell begins to fill with air bubbles. Through the combination of permanent magnets and magnetic sensors (reed contacts), a pulse is generated each time the test cell is turned over, which is recorded by the counter. The gas to be measured is released from the outlet nozzle. Measurement accuracy Through special production technology and high-precision calibration, the measurement accuracy can reach±3%. The measurement resolution is 1ml, and the display resolution is 1ul, because the display part is not only the volume, but also the calibration coefficient. The measuring range is theoretically 0 if there is no mechanical limit to the minimum flow rate of the trace gas meter. However, for instruments measuring such trace amounts of gas, there are obviously external influences (the tightness of the connection pipe, the permeability of the gas to the pipe). Therefore, the minimum flow rate is set at 1 milliliter per day (ml/day) and the maximum flow rate is 1.2 liters per hour (L/h). Air pressure and temperature The maximum airflow pressure that the instrument can withstand is 50mbar, and the minimum differential pressure is 3mbar. The operating temperature range is 10-40°C. The data shows that the volume value of the measured gas is displayed on the electronic counter, which is placed above the meter. A reed contact (movement output) is used as the signal output. Performance Specifications Minimum Flow 1 ml/day Maximum Inlet Pressure 50 mbar Maximum Flow Rate 1.2 l/h Minimum Inlet Pressure 3 mbar Measurement Error±3 % minimum indication of inlet pressure at the start of measurement (display resolution) 0.001 ml (approximate value) 8 mbar closed liquid volume (approximate value) 70 ml Nozzle connecting gas inlet and outlet Measuring volume 1 ml Outer diameter of nozzle 8 mm*energy Withstand higher inlet pressure until there is no closed liquid in the gas input channel and the microcavity of the base. This is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'How to choose a micro flow meter'

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