Care should be taken when using micro-flowmeters

In recent years, with the popularity of manufacturing industries such as bio-chemical industry and engineering project, as well as the regulations on green environmental protection and mechanical automation in industrial production and manufacturing, the high precision measurement requirements of micro total flow rate are gradually highlighted.In general, the instrument panel can be measured with a small total flow of key capacity type, heat type, dynamic pressure type, oil level sensor type.Among them, the volumetric flowmeter can be used for high pressure load, the scope of measurement is very relativistic, occupies the key influence in the tiny instrument.Nowadays, the scientific research on the small-capacity total flow measurement equipment in the world mostly focuses on the update and transformation of the existing commodities, so that the application boundary of the instrument panel is broadened down to a smaller total flow scope and a series of commodities.

For micro flowmeter, it is generally used for measuring large total flow. At present, the total flow of small measurement is about 0.6l /min, and the structure cannot be used for high pressure load.

Care should be taken when using micro-flowmeters

1. The liquid flowmeter sensor can be installed horizontally and vertically, and the fluid dynamics azimuth must be upward when vertical.Liquid should fill the pipeline, no bubble.During installation, the orientation of liquid flow shall be the same as that of the incoming arrow on the sensor housing.The upper and lower end of the sensor shall have at least 20 times the nominal pressure nominal diameter of the straight tube segment, and the middle and lower end shall have more than 5 times the nominal pressure nominal diameter of the straight tube segment. The inner cavity shall be clean and clean without pits, scaling and peeling.

2. The sensor shall eliminate the external electromagnetic field. If it cannot be prevented, necessary countermeasures shall be adopted;Electromagnetic fields can compromise the accuracy of measurements.

3, sensor outdoor installation, please do a good job of amplifying instrument plug moisture-proof solution.

4, sensor outdoor installation, please do a good job of amplifying instrument plug moisture-proof solution.

5. In order to ensure that all normal transportation of liquid is not harmed during maintenance, bypass valve pipelines should be installed outside the straight pipe sections on both sides of the sensor.

6. In case of unsteady fluid mechanics and pulsating flow, a buffer must be installed to clear the pulsating flow in order to ensure the flow meter's excellent measurement and stable measurement.Motor rotor flowmeter in the application, the first step is to slowly unscrew the control gate valve on the upstream and downstream pipeline of the flowmeter, and then adjust the total flow with the regulating valve to prevent the sudden opening of the oil level sensor to increase the cone tube.

7. In order to ensure that all normal transportation of liquid is not harmed during maintenance, bypass valve pipelines should be installed outside the straight pipe sections on both sides of the sensor.

Porcelain city Shanghai instruments co., LTD., founded in 2011, founded by former Siemens engineers MrStone, specializing in high quality, high precision, high frequency, high temperature, high pressure, wide range of flow meter research and development production, production strictly enforce the ISO9001 standards, the use of independent research and development of technology, substitute the gaps in China's small flow meter, the product can completely replace the Max, KRACHT (clark), OVAL and other international brands.