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1. What are the types of mass flow meters?
2. How to adjust gas flow meters.
The adjustment method of gas flow meters needs to be selected according to the specific type of operation.
1. Adjustment of rotor flow indicator 1 Manual valve adjustment: Adjust the valve opening by rotating the valve handwheel. Rotate clockwise to decrease the opening (decrease flow rate), and counterclockwise to increase the opening (increase flow rate). During operation, it is necessary to adjust and observe the position of the float scale inside the glass tube to ensure the accuracy of the adjustment. 2. Installation and calibration: The instrument must be installed vertically, and tilting it more than 5 ° will cause the float to rub against the tube wall, resulting in indication errors. When installing, the valve should be fully opened first to flush out impurities in the pipeline, and then slowly adjusted to the target flow rate.
2. Vortex flowmeter regulation 1 Electronic parameter setting: Long press the SET key on the meter head to enter the parameter setting mode, press the up and down keys to adjust the K coefficient (instrument calibration coefficient), and the flow range can be modified in the F-MAX submenu. For example, the maximum flow rate of DN50 pipe diameter is usually set at 100m ³/h, which can be adjusted to the actual demand of 80m ³/h
2. Pipeline pressure difference control: For self regulating type, pressure is balanced through a three valve group. First, fully open the bypass valve, then gradually open the upstream and downstream shut-off valves, and finally close the bypass valve to achieve detailed control.
III. Adjustment of Thermal Gas Mass Flow Meter 1 Zero point calibr
3. What are the parameters of a mass flowmeter and how to adjust them?
1. What are the parameters of a mass flowmeter? A mass flowmeter is a precision flow measurement device suitable for high-quality flow measurement of various fluids.
. It has the advantages of good measurement accuracy, high stability, and has been widely used in industrial production. The basic parameters of a mass flowmeter include but are not limited to the following aspects:1. Measurement range The measurement range refers to the minimum and maximum values of the flow that the mass flowmeter can measure. This indicator usually depends on
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