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1. How to read LZB-4 glass rotor flowmeter
The core reading method of LZB-4 glass rotor flowmeter can be summarized as "three confirmations and one Xianglv correction"
1. Confirm the medium and corresponding scale. The instrument scale may contain multiple sets of scales, and the corresponding scale needs to be selected according to the actual measured medium (such as water, air). Directly read the numerical values associated with water when using water as the medium; If the medium is different from the calibration conditions, reference should be made to the instruction manual or the conversion parameters provided by the manufacturer. 2. Observe the rotor position horizontally until it is stably suspended, and keep the line of sight level with the edge of the upper end face of the glass tube rotor. At this time, the corresponding scale value is the instantaneous flow rate value. If looking up or down is prone to visual errors, adjusting the standing height can ensure a level view. 3. Checking the flow unit and range scale values should be combined with the unit to determine the actual value (such as L/h or m ³/h). The range of the LZB-4 model is generally 1-10L/h (water) or 0.5-5m ³/h (air). When reading, attention should be paid to whether the scale division value is within the effective range of the current range. When correcting for differences in working conditions, when the temperature and pressure of the medium deviate significantly from the calibration conditions (usually 20 ℃, standard atmospheric pressure), the formula is needed: actual flow rate=instrument reading x (actual medium density/calibration medium density) ^ 0.5. If there is a lack of physical parameters, it is recommended to obtain c
2. How does a rotor flowmeter read?
How to read a rotor flowmeter? The reading method is usually pointer reading, but there are also LCD readings. Pointer reading only reads instantaneous flow rate. For LCD, Sun Zhengmeng has instantaneous and cumulative flow rates. If there is bridge output, it can also be read from the display instrument. Reference: The intersection of the maximum cross-section of the rotor and the engraved line on the glass tube is the flow rate value. Read the markings on the surface clearly, but be aware that if the liquid is not water, and the temperature and pressure are not standard conditions, the reading should be corrected using a formula that is generally applicable.
3. Do rotor flow meters look at the top or bottom?
The rotor flow meter should look at 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. 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