Submersible flowmeter

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1. Ultrasonic flowmeter parameters

The core parameters of an ultrasonic flowmeter include measurement accuracy, repeatability, measurement range, flow rate range, operating temperature, pressure level, signal output, and communication protocol. These parameters directly affect the performance and applicable scenarios of the instrument. 1. Performance parameter measurement accuracy: usually ± 0.5%~± 1.0%, high-precision models can reach ± 0.2% repeatability: generally ± 0.1%~± 0.3%, better than accuracy indicators measurement range: pipe diameter covers DN15~DN6000, suitable for various pipeline sizes flow rate range: -32m/s~0~+32m/s (two-way measurement first band), specific models can reach 40m/s. 2. Operating parameters working temperature: -40 ℃~+200 ℃ (standard type), high temperature type can reach+400 ℃ Pressure level: PN16~PN420, high pressure type supports 25MPa or more Protection level: IP65 (Xiqin Qing dustproof and waterproof), IP67 (anti immersion), IP68 (submersible type) Medium requirements: turbidity<10000mg/L, bubble content<2% (Affects measurement accuracy) 3 Output and communication signal output: 4-20mA analog output, pulse/frequency output, switch alarm output Communication interfaces: RS-485 (Modbus, HART), PROFIBUS-DP, Ethernet interface Power supply: DC 8-36V or AC 85-265V, low-power battery power supply up to 5 years Installation and environmental sensor types: external clamp type (non-contact), plug-in type (drilling installation), pipe section type (flange connection). Installation requirements: The front and rear straight pipe sections must meet the requirements of front 10D and rear 5D (D is the pipe diameter). Environmental temperature: -30 ℃~+70 ℃ (working temperature of electroni

2. What brand of flowmeter is used for municipal drainage? Electromagnetic flow meters, turbine flow meters, and ultrasonic flow meters can all be used to treat sewage. Electromagnetic flow meters are easy to adapt to the complex working conditions of sewage treatment, and whether they contain corrosion or not, it will not affect the use of electromagnetic flow meters. The selection of electromagnetic flowmeter types: Electromagnetic flowmeters are divided into two types based on their structural shape: split type and integrated type. The basic principle for choosing between modular and integrated flow meters is that when the flow meter is used in complex environmental conditions such as high-temperature fluids, explosive gases, places with severe vibrations, and places where water may submerge, a modular structure should be selected. Under generally good environmental conditions, an integrated electromagnetic flowmeter can be used. According to the fluid being measured, an electromagnetic flowmeter can only be used to measure conductive liquids and cannot measure non-conductive fluids such as gases, oils, and organic chemicals. For fluids with a conductivity of 5 S/cm or higher, a general type of instrument can be selected. For liquids with a conductivity of 0.01 S/cm or higher, as well as slurry fluids containing so

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