Electromagnetic flowmeter consists of two parts: sensor and converter. It is based on Faraday's law of electromagnetic induction, used to measure the volumetric flow rate of conductive liquids with conductivity greater than 5μS/cm. It is an inductive instrument for measuring the volume flow of conductive media. In addition to measuring the volumetric flow of general conductive liquids, it can also be used to measure the volumetric flow of highly corrosive liquids such as strong acids and alkalis and even liquid-solid two-phase suspension liquids such as mud, pulp, and pulp. Electromagnetic flowmeter is widely used in petroleum, chemical, metallurgy, textile, paper, environmental protection, food and other industrial sectors and municipal management, water conservancy construction, river dredging and other areas of flow measurement.
Electromagnetic flow meter IP65 degree of protection under normal circumstances, according to the national standard GB4208-84 and the International Electrotechnical Commission standard IEC529-76 on electrical products, electrical enclosure rating is required standards:
A, IP65: For the spray-proof type, the electromagnetic flowmeter sensor housing allows the faucet to spray water from the sensor of the electromagnetic flowmeter in any direction, the pressure of the spray water is 30Kpa, the water output is 12.5L/S, and the distance is 3 meters. .
B, IP67: Electromagnetic flowmeter sensor can be used to soak in water for a short time.
C, IP68: For submersible type, suitable for long-term work in water or underground under certain pressure, at this time, the sensor and display part of the electromagnetic flowmeter are separated, and the electromagnetic flowmeter is to be composed, but the protection of the electromagnetic flowmeter must be emphasized. Grade requirements.
Under normal circumstances, the degree of protection should be selected according to the actual situation, the sensor requires to be installed below the ground, often under flooding conditions should choose IP68, sensor installed above the ground should choose IP65, IP67. In any case, the display area of ​​the electromagnetic flowmeter cannot be used or entered the water, and this may cause damage to the electromagnetic flowmeter.
Agricultural grade phosphate refers to a type of phosphate fertilizer that is specifically formulated for use in agriculture. Phosphate is an essential nutrient for plant growth and is necessary for various biological processes, such as photosynthesis, energy transfer, and cell division.
Agricultural grade phosphate is typically derived from phosphate rock, which is a naturally occurring mineral that contains high levels of phosphorus. This rock is processed to extract the phosphorus and convert it into a form that is readily available for plants to absorb.
The main benefit of using agricultural grade phosphate is that it helps to replenish phosphorus levels in the soil, which can become depleted over time due to plant uptake and erosion. Phosphorus is an essential nutrient for crop production, and a deficiency can lead to reduced yields and poor plant health.
Agricultural grade phosphate is available in various forms, including granules, powders, and liquids. It can be applied to the soil through methods such as broadcasting, banding, or fertigation. The application rate and timing will depend on the specific crop, soil conditions, and nutrient requirements.
It is important to note that the use of agricultural grade phosphate should be based on soil testing and nutrient management planning to ensure proper application and avoid overuse, which can lead to environmental pollution. Additionally, some countries have regulations in place regarding the use of phosphate fertilizers to protect water quality and prevent excessive nutrient runoff.
Overall, agricultural grade phosphate is a valuable tool for farmers to improve soil fertility and promote healthy plant growth.
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