1、 Overview:
The ARSLDE sanitary electromagnetic flowmeter adopts a new type of sanitary lining material and lining process, which meets the hygiene requirements of the food industry. At the same time, it adopts flange connection, which facilitates the quick disassembly and cleaning of the electromagnetic flowmeter. The ARSLDE sanitary electromagnetic flowmeter is not easily contaminated during use and can be widely used in the production and manufacturing process of food such as mineral water, soy sauce, jam, beer, juice, rice wine, milk, as well as in the fields of hygiene, chemical industry, etc.
2、 Characteristics:
·The use of new sanitary lining materials prevents the accumulation of residual measuring media in the measuring tube;
·Measurement is not affected by changes in fluid density, viscosity, temperature, pressure, and conductivity;
·Adopting a fast flange connection scheme for easy disassembly, maintenance, and cleaning;
·The converter can be integrated or separated from the sensor;
·The converter adopts a 16 bit high-performance microprocessor, 2 × 16 LCD display, convenient parameter setting, and reliable programming;
·Fully digital processing, strong anti-interference ability, reliable measurement, high accuracy and other characteristics.
3、 Main technical parameters:
·Nominal diameter: DN10 to DN600mm;
·Nominal pressure: 0.6-4.0MPa;
·Accuracy: ± 0.5%; ±0.3% ；
·Measurement range: 0.3-15m/s (flow velocity);
·Lining material: sanitary polytetrafluoroethylene;
·Electrode materials: stainless steel containing molybdenum, titanium (Ti), tantalum (Ta), Hastelloy (H), platinum (Pt) or other special electrode materials;
·Shell material: stainless steel;
·Medium temperature: -30 ℃ to+1000 ℃;
·Environmental temperature: -25 ℃~+60 ℃
·Power supply: 220V AC or 24V DC
4、 Working principle:
The working principle of ARSLDE sanitary electromagnetic flowmeter is based on Faraday's law of electromagnetic induction. In an electromagnetic flowmeter, the conductive medium inside the measuring tube is equivalent to a conductive metal rod in Faraday's test, and the two electromagnetic coils at the upper and lower ends generate a constant magnetic field. When a conductive medium flows through, an induced voltage is generated. The induced voltage generated by measuring the two electrodes inside the pipeline. The measuring pipeline achieves electromagnetic isolation from the fluid and measuring electrodes through non-conductive lining (rubber, Teflon, etc.).
5、 Performance characteristics:
·The instrument structure is simple, reliable, without moving parts, and has a long working life.
·No flow blocking components, no pressure loss or fluid blockage.
·No mechanical inertia, fast response, good stability, can be applied to automatic detection, adjustment, and program control systems.
·The measurement accuracy is not affected by the type of measured medium and its physical parameters such as temperature, viscosity, density, pressure, etc.
·Different combinations of PTFE lining and molybdenum containing stainless steel, titanium (Ti), tantalum (Ta), Hastelloy (H), platinum (Pt) or other special electrode materials can be used to meet the needs of different media.
·It has two types: integrated and separated.
6、 Main advantages:
1) The sensor structure of ARSLDE sanitary electromagnetic flowmeter is simple, with no movable parts inside the measuring tube and no throttling components that hinder fluid flow. So when the fluid passes through the flowmeter, it will not cause any additional pressure loss, making it one of the flow meters with the lowest operating energy consumption.
2) It can measure the flow rate of contaminated media, corrosive media, and suspended liquid-solid two-phase flow. This is because there are no obstructing flow components inside the instrument measuring tube, and only the inner lining and electrodes of the measuring tube are in contact with the measured fluid. The material can be selected according to the properties of the measured fluid. For example, using polytetrafluoroethylene or polytetrafluoroethylene as lining can measure various corrosive media such as acids, alkalis, salts, etc; The use of wear-resistant rubber as an inner lining is particularly suitable for measuring liquid-solid two-phase flows such as slurry and cement slurry with solid particles and high wear, as well as various suspended liquids such as fibrous liquids and pulp.
3) ARSLDE sanitary electromagnetic flowmeter is a volumetric flow measurement instrument that is not affected by the temperature, viscosity, density, or conductivity (within a certain range) of the measured medium during the measurement process. Therefore, after being calibrated with water, the electromagnetic flowmeter can be used with confidence to measure the flow rate of other conductive liquids.
4) The output of ARSLDE sanitary electromagnetic flowmeter is only proportional to the average flow velocity of the measured medium, and is independent of the flow state under symmetrical distribution (laminar or turbulent). So the range of electromagnetic flow meters is extremely wide, with a measurement range of up to 100:1, and some even have an operational flow range of up to 1000:1.
5) ARSLDE sanitary electromagnetic flowmeter has no mechanical inertia, sensitive response, can measure instantaneous pulsating flow, and can also measure flow in both positive and negative directions.
7、 Selection of electromagnetic flowmeter: