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1. Selection and advantages of HSD series electromagnetic flowmeter
The selection of HSD series electromagnetic flowmeter needs to be comprehensively considered based on flow range, measuring medium, pressure level, installation form and configuration requirements. Its advantages include low pressure loss, high measurement accuracy, wide range and bidirectional measurement capability. The specific explanation is as follows:
1. The selection points of HSD series electromagnetic flowmeter should be based on the flow range. When selecting the diameter, it is necessary to clarify the maximum, minimum, and commonly used flow values of the conductive liquid in the pipeline. Combined with the flow diameter comparison table of the flowmeter, choose a diameter that can cover the actual working conditions and reserve appropriate margin to avoid a decrease in measurement sensitivity caused by a large diameter or fluid blockage caused by a small diameter. According to the measurement medium, the electrode material and lining material should be selected. The electrode material should consider the corrosiveness, conductivity, and presence of solid particles in the medium. For example, corrosion-resistant electrodes such as Hastelloy and titanium alloys can be used for highly corrosive media such as acid and alkali solutions; Stainless steel electrodes can be selected for ordinary aqueous solutions. Lining material: It needs to match the temperature, pressure, and chemical properties of the medium. For example, rubber lining is suitable for low-temperature, low-pressure aqueous solutions; Polytetrafluoroethylene (PTFE) lining can withstand high temperatures and strong corrosive media; Polyurethane lining is suitable fo
6, PN2.
5, PN4.0, etc.) to ensure the sealing and safety of the connection between the flowmeter and the pipeline. Choose a split type or integrated flow meter according to the working conditions: the sensor and converter are integrated, easy to install, and suitable for environments with dry conditions and no strong electromagnetic interference. Split type flowmeter: The sensor and converter are separated and connected by cables, suitable for working conditions such as high temperature, humidity, strong corrosion, or limited space (such as buried pipelines, high-temperature furnace outlets). Select power supply, signal and protection level according to configuration requirements: AC 220V, DC 24V or battery power supply can be selected to adapt to different on-site power conditions. Output signal: Supports 4-20mA current signal, RS485 digital signal or pulse signal, easy to integrate with PLC, DCS and other systems. Explosion proof protection level: Explosion proof type (such as ExiaICT4) should be selected for flammable and explosive places, and IP65/IP68 protection level should be selected for outdoor or humid environments.
2. The core advantage of HSD series electromagnetic flowmeter is the absence of resistance components, low pressure loss, and accurate measurement data based on Faradays law of electromagnetic induction. There is no throttling device (such as ori
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