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1. Wiring instructions for vortex flowmeter
The sensor of vortex flowmeter Minqing is designed with a three wire system, including power line, signal line, and power ground line. This design uses a three core shielded cable, where the shielded wire is connected to the ground of the housing at the sensor end. It is worth noting that Bi should not regret connecting the shielded wire to the ground at the secondary instrument end. The specific function of each wire is: the power line provides power, the signal line transmits data, and the power ground wire is connected to the ground terminal of the sensor. These three wires correspond to different functions, ensuring the normal operation of the equipment. The transmitter adopts a two-wire design and uses a two core cable. In the vortex street transmitter, the "+" terminal is connected to the+24V power supply, while the "-" terminal is connected to the signal input "+" Binance lifting terminal of the test instrument. The signal "-" end needs to be connected to the "-" end of a 24V DC power supply to form a 4-20mA current loop. This design enables vortex flowmeters and transmitters to work efficiently and accurately, especially in environments with limited power supply. By reasonable wiring and connections, interference can be minimized to the greatest extent possible and measurement accuracy can be improved. Proper wiring is crucial in practical applications. Incorrect wiring can not only cause equipment to malfunction, but also pose a safety hazard. Therefore, when installing and configuring a vortex flowmeter, it is essential to strictly follow the wiring diagram. By proper wiring, the signal transmission between the vortex flowmeter and the transmitter can be en
2. Detailed explanation of the steps for using the vortex flowmeter.
The standard usage process for the Kaifeng Hexin vortex flowmeter (taking the mainstream LUGB series as an example) is divided into four core steps: installation and verification, on-site use, daily operation and maintenance, and troubleshooting. It is necessary to strictly follow its supporting factory instructions and JB/T 9248-2015 "Vortex Flowmeters" industry standard.
.1. Verification and preparation before installation (1) Appearance and accessory inspection 1 Check the nameplate parameters of the flowmeter body: confirm that the nominal diameter, nominal pressure, medium temperature range, output signal type match the on-site working conditions. The nameplate of Kaifeng Hexin will indicate the factory number and calibration date, and the calibration certificate needs to be retained. 2. Check that the sensor body is not bumped, the wiring terminals are not loose, the matching PTFE/metal sealing gasket is not deformed or damaged, and the signal cable meets the on-site explosion-proof/protection level requirements. The conventional model protection level of this brand is IP65, and the explosion-proof type is Exd II BT4. 3. Confirm that the preamplifier installation position of the split flowmeter is far away from strong electromagnetic interference sources such as frequency converters and high-power motors. （2） Condition matching verification 1 Verify the tested medium: Kaifeng and Xinxin vortex street flow meters are only suitable for clean gases, liquids, and steam. For media containing particulate impurities, a pre filter
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