pH и ОВП сенсоры
Анализаторы жидкости

pH/ОВП сенсоры являются чувствительной частью всей системы, правильный выбор модели играет решающую роль для получения надежных и точных результатов измерения. Также немаловажно правильно установить датчик в процесс, для чего доступны различные дополнительные приспособления: фитинги для прямого монтажа, а также выдвижной, погружной и проточный адаптеры.

  • pH/ОВП-сенсоры PH8EFP, PH8ERP, OR8EFG, OR8ERG

    pH/ОВП-анализаторы Yokogawa отличаются высокой надёжностью. Они включают в себя расширенные функции и могут использоваться в самых разных практических задачах, включая контроль качества воды во многих производственных процессах и на небольших установках очистки сточных вод, а также в качестве общих систем регулирования pH/ОВП

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  • Дифференциальные pH/ОВП сенсоры

    Дифференциальные pH/ОВП-сенсоры были разработаны для сложных условий эксплуатации, где обычные датчики неэффективны. Они предназначены для измерения РН в солевых растворах, например, в процессе электролиза, производстве сыра и многих других.

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  • Промышленные pH/ОВП сенсоры

    Основным элементом системы измерения pH являются сенсоры. Компания Yokogawa предлагает большое количество моделей, способных работать в самых различных технологических процессах.

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  • pH/ОВП-сенсоры для чистой воды

    Получение точных и надежных показаний при использовании традиционного анализатора pH является сложной задачей, однако с правильно подобранным оборудованием можно обеспечить стабильные и точные измерения pH в чистой воде. Специализированный сенсор pH от Yokogawa является лучшим решением для анализа воды с высокой степенью чистоты. Если требуется исключить необходимость обслуживания заправляемых датчиков, идеальным решением является установка датчика FU24, в котором используется запатентованная система сильфонов в универсальном корпусе.

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  • pH/ОВП-сенсоры серии PH4OR4

    pH/ОВП-сенсоры серии PH4/OR4 предназначены для работы в тяжелых условиях, например, при сильном загрязнении технологической жидкости или содержании в ней сульфидов. Сенсоры серии PH4/OR4 отвечают требованиям к простому оборудованию

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  • Персональный портативный pH/ОВП-метр PH71/PH72

    PH71/PH72 – это компактный, простой в использовании и водонепроницаемый pH/ОВП-метр, идеально подходящий для работы в полевых условиях. Прибор может осуществлять калибровку в одно касание и имеет функцию температурной компенсации. PH71/PH72 – это pH/ОВП-метры лабораторного класса, воплощающие в себе идеальный баланс габаритных размеров и стоимости

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  • Держатели датчиков для анализаторов pH/ОВП-сенсоров, датчиков растворенного кислорода и взвешенных веществ

    Yokogawa предлагает несколько типов держателей, в которые может быть встроено устройство очистки, что позволяет заказчику сконструировать надежные и простые в обслуживании измерительные системы в соответствии с условиями применения.

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  • Буферные растворы для калибровки pH/ОВП-сенсоров

    Буферные растворы являются обязательным инструментом для получения точных pH измерений. Данные реагенты используются в качестве эталона для калибровки и корректировки измерений pH, для компенсации старения и износа pH-чувствительной стеклянной мембраны.

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Файлы

Обзор:
  • More than 1,000 field devices designed to the PROFIBUS specifications installed in the state-of-the-art water reclamation plant.
  • The high reliability and accuracy of our field devices contributes to the minimization of maintenance costs over the entire plant lifecycle.
Application Note
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For control of batch neutralization, a pH measurement coupled with a timer-controlled chemical feed scheme provides very satisfactory results.

This system can be adapted for either acid waste or alkaline waste neutralization.

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There are a number of suppliers of oil and fat products used for edible purposes. These products include, but are not limited to olive oil, peanut oil, soybean oil, sunflower oil, lard, shortening, butter, and margarine. The raw materials for these products include animal by-products, fleshy fruits (palm and olive), and oilseeds. 

Industry:Food and Beverage

Обзор:

One of the primary applications for high purity water is for boiler feed water. The measurement of pure water pH can be one of the quickest indicators of process contamination in the production or distribution of pure water. Effective chemical treatment of the feed water is vital in maintaining the useful operating life and minimizing maintenance costs of the boiler.

Industry:Power, Pharmaceutical, Common

Обзор:

The proliferation of microorganisms and the resultant formation of slime is a problem which commonly occurs in aqueous systems. Problematic slime producing microbes may include bacteria, fungi and/or algae. Slime deposits typically occur in many industrial aqueous systems including cooling water systems, pulp and paper mill systems, petroleum operations, clay and pigment slurries, recreational water systems, air washer systems, decorative fountains, food, beverage, and industrial process pasteurizers, sweetwater systems, gas scrubber systems, latex systems, industrial lubricants, cutting fluids, etc.

Industry:Refining, Food and beverage, Power, Oil and Gas, Pulp and Paper, Chemical

Обзор:

Process liquid analyzers such as pH meters, conductivity meters, ORP meters, and density meters play an important role at electrolysis plants in the control of concentrations of various process solutions. This requires both precision and stability under harsh conditions that include highly corrosive substances, high temperatures, and many impurities.

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Most zinc are produced at hydrometallurgically, where a high-grade zinc product can be obtained and valuable metals mixed in the raw material can be recovered. In the hydrometallurgy, the raw material of zinc concentrate is roasted and then dissolved in sulfuric acid to remove impurities. The process called leaching and pH control of the leachate is important.

Industry:Chemical, Power

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The control of the world's water resource is arguably one of the most important issues. Water demand from industry and domestic users is set to rise throughout the industrialized world. Yokogawa has been applying minimized maintenance measurement systems.

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Cyanide-bearing wastewater from mining and electroplating facilities and certain types of chemical plants is toxic and must be treated by oxidation with chlorine or chloride to bring the cyanide concentration within regulatory limits.

Industry:Electrical and Electronics

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In flue gas desulfurization systems that use magnesium hydroxide (Mg(OH)2) slurry, the consumption of the desulfurization agent (Mg(OH)2) is controlled by using online pH analyzers. A great concern in the pH measurement is heavy staining of the pH electrodes by the Mg(OH)2 slurry. To ensure accurate measurement, frequent cleaning of the electrodes with an acid is required, adding to both maintenance workload and cost.

Industry:Chemical, Power

Обзор:

Caustic soda and hydrochloric acid, produced in electrolyzer plants, are fundamental materials used in varieties of industries; chemicals, pharmaceuticals, petrol-chemicals, pulp and papers, etc. Profit is the result of the effective production with minimized running / maintenance cost. Proper control of the process brings you stabilized quality of products with the vast operational profit.

Отрасли:
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The treatment of wastewater from pulp and paper plants is a serious environmental concern. Yokogawa's submersion holder with an ultrasonic+air-jet cleaner (customized product) can reduce the manual cleaning frequency to just once every one or two months.

Industry:Pulp & Paper

Обзор:

Continuous technology improvement is ongoing in the pulp & paper industry to obtain the best possible performance. Problems at the wet end (stock preparation) can rarely be corrected downstream. That is why monitoring and controlling pH in pulp stock is critical to the paper making process. Essentially, at every stage in the manufacture of paper, correct pH values play a vital role.

Обзор:

Reverse osmosis (RO) is a separation process that uses pressure to force a solution through a membrane that retains the solute on one side and allows the pure solvent to pass to the other side. More formally, it is the process of forcing a solvent from a region of high solute concentration through a membrane to a region of low solute concentration by applying a pressure in excess of the osmotic pressure.

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Continuous technology improvement is ongoing in the pulp & paper industry to obtain the best possible performance. The improved plant performance translates to the higher quality improvement and lower cost, and simultaneously environmental friendly plant operation.

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Wastewater from electroplating facilities and certain types of chemical plants contains toxic forms of hexavalent chromium such as chromate and dichromate. The hexavalent chromium in this wastewater must be reduced before the water can be discharged. This requires a two-step process: hexavalent chromium (CR6) is reduced to trivalent chromium (CR3); and CR3 is precipitated as chromium hydroxide.

Industry:Electrical and Electronics

Обзор:

Sour Water is the wastewater that is produced from atmospheric and vacuum crude columns at refineries. Hydrogen sulfide and ammonia are typical components in sour water that need to be removed before the water can be reused elsewhere in the plant. Removal of these components is done by sending the sour water from the process to a stripping tower where heat, in the form of steam, is applied.

Обзор:

Power plant boiler houses designed to burn coal or high sulfur oil are required by Federal and State pollution regulations to "scrub" (remove) sulfur dioxide from flue gasses to meet emission limits. SO2 in flue gasses is known to be harmful to the environment, as it is one contributor to the formation of acid rain. pH control is critical for the proper functioning of the scrubber system.

Application Note
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Wastes have been considered to be a serious worldwide environmental problem in recent years. Because of increasing pollution, these wastes should be treated. However, industrial wastes can contain a number of valuable organic components. Recovery of these components is important economically. Using conventional distillation techniques, the separation of acetic acid and water is both impractical and uneconomical, because it often requires large number of trays and a high reflux ratio. In practice special techniques are used depending on the concentration of acetic acid. 

Отрасли:
Обзор:

Optimizing four key factors will decrease pH sensor costs and optimize process control and overall plant efficiency.

White Paper
Обзор:

ORP (Oxidation-Reduction Potential) is the measurement, in millivolts, of a solution's capacity for electron transfer (oxidation or reduction). ORP measurement may also be called REDOX for REDuction OXidation. The name reflects that fact that within a chemical reaction reduction and oxidation are complementary; one cannot occur without the other.

Обзор:

To facilitate the accurate measurement of pH, and its presentation as a scale, a range of "standard liquids" or "buffer solutions" are used. These liquids, whose constituents are accurately defined, have known stable values. Although in the preceding text the relationship to hydrogen ions has been made, research has shown, that the activity of hydroxonium ions (H30+) is more relevant.

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