What are the eight types of flow meters | laboratory standard measuring instruments | Direct sales from Sichuan drainage flowmeter manufacturer

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How to install and use a glass rotor flowmeter?

How to correctly choose a glass rotor flowmeter? Glass rotor flowmeter is an instantaneous flow measurement instrument that is easy to use, easy to read, and has a wide range of applications.. In the field of environmental protection equipment and instruments, the usage reaches over 30000 units per year. Therefore, it is extremely important to choose and use this instrument well.

1. Types and selection of glass rotor flow meters. Glass rotor flow meters can be divided into eight series according to their applications and adaptability: ordinary type, reinforced pipe type, small flow and small shape type, corrosion-resistant type, laboratory type, insulation type, alarm type, and high-pressure resistant type.

. According to the national instrument series collapse spectrum, regardless of which series, there are a maximum of 12 calibers from 1 millimeter to 100 millimeters, and the measurable flow range is: liquid (water) 0.1 milliliter/minute to 40 cubic meters/hour, gas (air) 1 milliliter/minute to 1000 cubic meters/hour. The glass rotor flowmeter used for environmental protection instruments generally has a diameter of no more than 10 millimeters, and the measured flow rate belongs to the small flow range. The selection of glass rotor flowmeter can be considered from the following aspects. 1. Object of measurement. Measure the type of medium, pressure level, and chemical properties. For corrosive media such as liquid and gas media, corrosion-resistant flow meters should be selected. 2. The performance of the flowmeter itself. After the above conditions are determined, generally speaking, if there is no significant change in price, priority can be g Eight types of flow meters

iven to using a needle valve placed on the upper part of the flowmeter; For those with larger flow holes, it is a direct flow scale; Simple structure; Smaller external dimensions, etc. If it is a small flow range, a ball float type can be used because it is stable, less prone to dust accumulation, has high accuracy, and has good interchangeability during measurement. 3. Choose according to the price. Generally speaking, high precision comes at a higher price. The instrument accuracy level should be selected according to the measurement purpose. If only the measurement medium throughput needs to be controlled, adjusted through trial operation, and the throughput needs to be consistently stable in the future, then accuracy is secondary.

2. Calibration correction of glass rotor meteorometer The calibration of glass rotor flowmeter is obtained by the manufacturer using water and dry air, which are close to ideal fluids, as the medium calibration under the factory conditions.

. But in the use of flow meters, there are two situations where their scale values cannot be directly used: one is when the measuring medium is not water and air, and the other is when the measuring medium is water and air, but its state (temperature, pressure) is different from the scale state. In this way, when using a flow meter, there is a problem of needing to correct the scale values in order to obtain accurate measurement results. Therefore, solving the calibration correction of glass rotor flow meters is the key to using this type of instrument effectively. Considering the extensive use of rotor flow meters in environmental instruments for measuring gas medium flow, the following discussion will only focus on density correction during g

What are the eight types of flow meters | laboratory standard measuring instruments

How to install and use a glass rotor flowmeter?

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