Glass rotor flowmeter reading | Glass rotor flowmeter akb-6wb 0~60ml/min 2.5 level

『Reading of glass rotor 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. How to read the glass rotor flowmeter?

Read the scale with the eyes level with the upper plane of the rotor, starting from the 0 scale direction. The data read on the rotor flowmeter is instantaneous flow rate, either volumetric flow rate or mass flow rate. If it is a mass flow rate, you first convert it to a volume flow rate (unit: m3/s), and then estimate it by dividing the volume flow rate by the cross-sectional area based on the diameter of the rotor flowmeter (note: this is an estimation of early closing travel, because the cross-sectional area is not linear). The scale of the glass rotor flowmeter is calibrated by the production plant under local conditions using water and dry air as media that are close to ideal fluids. However, there are two situations where the scale value of a normal flowmeter cannot be directly used: first, when the measuring medium is not water and air, and second, when the measuring medium is land bench 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.

2. Should the rotor flowmeter be viewed from the top or bottom?

The rotor flowmeter should be viewed based on the scale value corresponding to the upper end face of the J-carried float.

1 The accurate reading method is to keep the line of sight level with the upper surface of the float (i.e. the plane with the maximum diameter), and then read the corresponding scale value of this plane on the scale tube. Reading of glass rotor flowmeter

The structure and principle of the rotor flowmeter are mainly composed of a conical tube with gradually increasing diameter from bottom to top and an inner float. When the fluid flows from bottom to top, it will push the float up. The higher the float rises, the larger the annular area between it and the conical tube wall. When the gravity, buoyancy, and fluid thrust of the float reach equilibrium, the float stabilizes at a certain height, and the scale corresponding to its upper end surface represents the current flow rate value. The installation direction and reading angle of the flowmeter must be perpendicular, and the fluid direction is from bottom to top. If the reading is observed from an oblique angle above or below, there will be a viewing angle error, resulting in inaccurate readings. Therefore, it is necessary to ensure that the line of sight is level with the upper end face of the float. 4. Different types of scales can be read directly on the flow scale: the most common type is to directly read the corresponding value on the upper end face of the float, usually in units of L/h, m ³/h. Percentage scale: It reads the percentage of the full range and needs to be converted based on the range of the flowmeter. Fluid coefficient scale: commonly seen in glass tube flowmeters, the actual flow rate can only be obtained by referring to the corresponding flow curve chart or calculating through formulas after reading.

5. The special case of metal tube rotor flowmeter: For opaque metal tube flowmeters, the float position cannot be directly seen. The reading method is usually pointer indication type: the displacement of the float is transmitted to the pointer through magnetic coupling, and the indication value of the

Glass rotor flowmeter reading | Glass rotor flowmeter akb-6wb 0~60ml/min 2.5 level

1. How to read the glass rotor flowmeter?

2. Should the rotor flowmeter be viewed from the top or bottom?

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