1. Before installing the metal tube float flowmeter, the welding slag and debris in the pipeline must be cleaned up. 2. In order to ensure the measurement accuracy of the metal tube float flowmeter, a straight pipe section of not less than 10DN should be added at the inlet end of the flowmeter, and a straight pipe section of not less than 5DN at the outlet end should be installed. Downstream. 3. If the measured medium is a large pulsating flow or a two-phase flow, a buffer should be installed upstream of the metal tube float flowmeter to eliminate or reduce the pulsation, to ensure that the flow of the medium is stable in a single phase, and at the same time, it is recommended that the flowmeter Zui Good use of damping type. 4. If the measured medium is dirty or contains magnetically conductive particles, a filter or magnetic filter should be installed upstream of the metal tube float flowmeter. 5. The installation of the metal tube float flowmeter should be able to properly support the vibration of the pipeline or reduce the axial load of the flowmeter, otherwise the support of the fixed flowmeter should be increased. 6. In order to facilitate the maintenance and repair of the metal tube float flowmeter, the cleaning of the magnetic filter and the regular maintenance of the user piping, it is recommended to use the bypass piping as shown. 7. When the metal tube float flowmeter is used for gas measurement, it should ensure that the working pressure in the pipeline is not less than 5 times the pressure loss of the flowmeter, so that the flowmeter can stabilize the normal operation. 8. For the remote transmission of metal and the metal tube float flowmeter with alarm limit switch, open the instrument cover and connect it correctly according to the wiring diagram before use. For the screw of the alarm type loosening limit switch, the user sets the limit alarm position as needed, and tightens the screw to restore it. 9. According to the warning sign in the meter indicator, take out the blocking piece that prevents the vibration of the float during transportation, and then use the instrument after recovery. 10. If the metal tube float flowmeter is turned on, since there is no pressure in the pipeline or the system has not reached the working pressure of the normal use of the instrument, the control valve must be slowly opened until the system is normal and the instrument can be used. Otherwise, the pointer may jump or float. Sudden impact and damage. 11. When the user uses the machine, if the density of the measured fluid is different from the water, or when the parameters and working conditions of the measured gas are different from those of the manufacturer, the reading of the metal tube float flowmeter shall be converted.
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Precautions for use:
Points to note when using a metal tube float flowmeter
The metal tube float flow meter is produced by the variable area measurement principle and is suitable for measuring liquid and gas. All metal structure, indicating type, electric remote transmission type, corrosion resistant type, high pressure type, jacket type, explosion proof type. Standard analog signal output with 0-10mA, 4-20mA and on-site indication. Accumulation, digital communication, on-site modification of measurement parameters, different power supply functions, with magnetic filters and special specifications.