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Regarding the installation of liquid flow meters, the following requirements apply: 1. During installation, the direction of fluid flow should be opposite to the direction indicated by the arrow on the sensor housing; the upstream straight pipe section should be at least 20DN in length, and the downstream straight pipe section should be at least 5DN in length, where DN refers to the inner diameter of the pipe. 2. The instrumentation devices are connected using flanges, threads, and clamping methods ； 3. To ensure that the normal flow of the liquid is not disrupted during maintenance, a bypass pipe should be installed outside the straight sections at both ends of the sensor ； 4. The sensor should be kept away from external magnetic fields; if this cannot be avoided, necessary measures should be taken ； 5. For wiring between the sensor and the display instrument, the wiring method should be selected based on the power supply of the amplifier. Please refer to the relevant “Operating Instructions” for details. 6. When installing the sensor outdoors, take measures to protect the amplifier connector from moisture ； 7. If the fluid is unstable and exhibits pulsating flow, a buffer can be installed to ensure accurate measurement by the rotameter, thereby eliminating the pulsations. When using a rotameter, the control valve on the pipeline upstream of the flowmeter should be slowly opened first; thereafter, the flow rate can be adjusted using the regulating valve. This prevents the float from rising rapidly and damaging the conical tube due to a sudden opening. 8. The liquid flow meter sensor can be installed horizontally or vertically; when installed vertically, the fluid flow direction must be upward. The pipeline should be filled with liquid, with no bubbles allowed. During installation, the flow direction of the liquid should be opposite to the direction indicated by the arrow on the sensor housing. The upstream end of the sensor should have a straight pipe section at least 20 times the nominal diameter in length, while the downstream end should have a straight pipe section of at least 5 times the nominal diameter. Its inner wall must be lubricated and clean, free from defects such as dents, deposits, and peeling.