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The tuning fork level switch is a control switch specifically designed for measuring the level of liquids such as hydrochloric acid, sulfuric acid, nitric acid, alkalis, industrial wastewater, syrups, and pharmaceutical solutions. It has a wide range of applications: it can be used for measuring the level in large containers like tanks and vats, as well as in narrow containers such as pipes. However, due to the varying conditions at different sites and differences in the corrosiveness of the media being measured, special attention should be paid to providing relevant parameters to the manufacturer when purchasing level switches, so as to obtain products with the most suitable performance characteristics. I. Selection based on the characteristics of the medium to be measured and the operating conditions on site: It is necessary to understand the nature of the medium being measured as well as the operating conditions at the site, and choose the appropriate model of fork-type level switch according to these actual conditions. 1. Due to the varying corrosivity and corrosion strength of different liquids, it is necessary to provide the manufacturer with information on the specific medium in question first. Currently, most manufacturers in China use 304 or 316L stainless steel for the prongs of their fork-type level switches; stainless steel can be used to measure most liquids, but it is not resistant to acids such as aqua regia, hydrochloric acid, nitric acid, oxalic acid, and sulfuric acid. In such cases, the fork-type level switch should be coated with ECTFE or PFA. If it is used for measuring beverage liquids, a food-grade fork-type level switch can be selected. If it is to be used in corrosive environments, an anti-corrosion fork-type level switch can be selected. If it is to be used in corrosive environments, an anti-corrosion fork-type level switch can be selected. 2. If there are flammable and explosive hazards at the site, a fork-type level switch with explosion-proof capabilities should be selected. When the liquid medium is petroleum, crude oil, gasoline, lubricating oil, etc., it is necessary to take adequate explosion-proof measures and use explosion-proof fork-type level switches. II. Selection of instruments should be based on factors such as storage and installation conditions at the work site, as well as the temperature and pressure of the medium. Given the varying pressures, temperatures, and densities of the media at the work site, corresponding fork-type level switches must be chosen to suit these conditions. The more the technical parameters of the tuning fork level switch match the characteristics of the actual operating conditions, the more accurate the measurement results will be. Therefore, when selecting a fork-type level switch, it is essential to ensure that the switch is suitable for the conditions in the actual operating environment. 1. Liquids are generally stored in storage tanks or pressure vessels; it is necessary to clarify with the manufacturer whether there are any explosion-proof requirements for the instruments at the site, and if so, what level of explosion protection is required. The on-site pressure and medium temperature should also be described in detail to the manufacturer; if it is a high-temperature environment, a high-temperature fork-type level switch should be used. 2. Depending on the on-site installation conditions, it is necessary to clearly specify whether threaded or flanged process connections will be used, as well as the exact model specifications for those connections; otherwise, the instruments may not be able to be installed in conjunction with the on-site equipment. For some applications with limited conditions or those that require special equipment on site, it is necessary to confirm with the manufacturer the insertion depth of the prongs of the fork-type level switch. If the prongs are too long, they cannot be installed on site; if they are too short, it becomes difficult to obtain accurate measurements of the liquid level. Therefore, the depth to which the prongs penetrate into the tank must be agreed upon in advance. The tuning fork level switch is a widely used instrument for level measurement, and it can be found in both large containers and small pipelines. Although fork-type level switches are highly practical, given the great variety of field conditions and the different media being measured, it is a challenging task for purchasers to find a fork-type level switch that is more suitable for the specific conditions in their particular application. To learn more about tuning fork level switch products, please visit the official Huike Instruments website at www.huikeyb.com or call us; we will assign professional technical staff to assist you.