Electromagnetic flow meter installation environment

Abstract: Electromagnetic flow meter installation environment information is provided by excellent flow meter and flow meter production and quotation manufacturers. Electromagnetic flowmeter installation environment 1. Selection of electromagnetic flowmeter sensor installation environment The electromagnetic flowmeter sensor shell protection grade is generally IP65 (international GB4208 shell protection grade dustproof and water proof), and the selection of its installation place. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the details of the installation environment of electromagnetic flowmeters. Electromagnetic flowmeter installation environment 1. Selection of electromagnetic flowmeter sensor installation environment The electromagnetic flowmeter sensor shell protection level is generally IP65 (international GB4208 shell protection level——Dust proof and water proof), please refer to Chapter 5, Section 5 for the selection of the installation site. The main requirements of the installation environment are: (1) The sensor should be installed in a dry and ventilated place, avoid places that are humid and prone to flooding, and should also try to avoid direct sunlight and direct rain. (2) It should be avoided as much as possible to install in places where the ambient temperature is too high. The electromagnetic flowmeter of the integrated structure is also subject to the ambient temperature of the electronic components, which is lower. (3) There should be no strong leakage current on the pipeline where the sensor is installed, and it should be kept away from equipment with strong electromagnetic fields as far as possible, such as large electromechanical, large transformers, etc., so as not to cause electromagnetic field interference; (4) The pipeline or ground where the sensor is installed should not be There should be strong vibration, especially the integrated instrument; (5) The location where the sensor is installed should consider the space for on-site maintenance by the staff. 2. Selection of the installation environment of the electromagnetic flowmeter converter The converter is used as a field installation instrument for on-site indication, and its installation site should generally be selected: the ambient temperature is between -10 and 45 °C; the relative humidity of the air≤85%; there is no strong vibration at the installation site; the surrounding air does not contain corrosive gases; the converter should be installed indoors as much as possible. When installed outdoors, measures to prevent sun and rain should also be taken. 3. Correct selection of electromagnetic flowmeter: The selection of the instrument is a very important work in the application of the instrument. According to relevant data, 2/3 of the failures of the instrument in practical applications are caused by the wrong selection and installation of the instrument Yes, pay special attention. 4. Collect data ①Name of the fluid to be measured; ②Maximum flow, minimum flow; ③Working pressure; ④Temperature, minimum temperature.·The fluid to be tested must have a certain conductivity, conductivity≥5uS/cm.·The maximum flow and minimum flow must conform to the numbers in the table below. (Extended process range 0.1 ~ 15m/s) 5. Features of electromagnetic flowmeter: 1. The measurement is not affected by changes in fluid density, viscosity, temperature, pressure and conductivity; 2. There are no obstructions to flow parts in the measuring tube, no pressure loss , The requirements for straight pipe sections are lower; 3. The nominal diameter of the series is DN15 ~ DN3000. There are various options for sensor lining and electrode materials; 4. The converter adopts a novel excitation method, with low power consumption, stable zero point and high accuracy. The flow range can reach 1500:1; 5. The converter can be integrated with the sensor or separate; 6. The converter adopts a 16-bit high-performance microprocessor, 2x16LCD display, convenient parameter setting and reliable programming; 7. Flow rate The meter is a two-way measurement system, with three built-in totalizers: forward total, reverse total and difference total; it can display . ;8. The converter adopts surface mounting technology (SMT), with self-checking and self-diagnosing functions; 6. The protection level is in accordance with the national standard GB4208-84 and the International Electrotechnical Commission standard IEC529-76 regarding the enclosure protection level:·IP65: Waterproof type, allowing the faucet to spray water on the sensor from any direction, the water spray pressure is 30kPa, the water output is 2.5L/s, and the distance is 3m.·IP68: diving type, long-term work in the water. The protection level should be selected according to the actual situation. If the sensor is installed below the ground and is often flooded, IP68 should be selected. If the sensor is installed above the ground, IP65 should be selected. Seven, additional functions The basic type of LDE electromagnetic flowmeter has functions such as display, output 4~20mA and 0~1kHz alarm, and other additional functions can be added according to the actual situation.·Split installation: The sensor needs to be installed below the ground or for other reasons, and the split installation method should be selected.·RS-485 communication requires sensors and other devices to communicate, and RS-485 communication function is required. Compared with other similar products abroad: LDE type intelligent electromagnetic flowmeter adopts a wide temperature dot matrix LCD display with backlight, all displays are in Chinese, with multiple functions and practical, especially convenient for users to operate, reducing unnecessary troubles and errors. Fast delivery, low cost and easy maintenance. 8. Compared with other similar products in China: LDE type intelligent electromagnetic flowmeter is designed by our company using the principle of full intelligence. Compared with the old-fashioned or fake intelligent electromagnetic flowmeters produced by some domestic enterprises, the measurement accuracy, function, There is a big difference in reliability and service life. The service life of the electromagnetic flowmeter should be more than 10-20 years, so we fully consider this point in the design, we are very careful in every detail from the sensor to the converter, from design, material selection, process, production We are very particular about every link such as testing, etc. We design and customize the current domestic production line of special and electromagnetic flowmeters to ensure the long-term quality of products.
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