pH-Elektroden und -Sensoren sind die detektierenden Elemente bei der Messung des pH-Werts. Die verschiedenen Installationsoptionen schließen u. a. Wechsel-, Durchfluss- und Eintaucharmaturen sowie den direkten Einbau ein. Die richtige Auswahl von pH-Elektroden und Sensoren ist für optimale Messergebnisse von entscheidender Bedeutung.
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pH/ORP-Universalsensor der Serie FU20 und FU24
Die Universalsensoren FU20 und FU24 für pH und ORP (Redox) zeigen, wie Yokogawa das Motto „einfach ist am besten“ auf Sensortechnologie anwendet.
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pH/ORP Sensors PH8EFP, PH8ERP, OR8EFG, OR8ERG
Yokogawa's pH and ORP analyzers are highly reliable. They feature advanced functions and are useful for a wide variety of applications including water quality management in a broad range of production processes and in medium-sized wastewater treatment plants, or as general pH and ORP control systems.
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12 mm pH-Sensor SC25V
Der SC25V ist ein pH-Sensor im 12 mm-Design, der über ein integriertes Temperaturelement und eine Flüssigkeitserde-Elektrode verfügt.
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Differenz-pH-/ORP-Sensoren
Die Kationen-Differenz-pH- und ORP-Sensoren wurden für schwierige Anwendungen entwickelt, bei denen herkömmliche Sensoren nicht effektiv sind. Dazu gehören Messungen in Solelösungen bis hin zu so diversen Anwendungen wie Elektrolyseverfahren und der Käseproduktion.
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Industrieelektroden für pH/Redox-Messungen
Das Herzstück einer pH-Messschleife ist das Elektrodensystem. Yokogawa hat ein umfangreiches Sortiment von Elektroden entwickelt, die dafür sorgen, dass dieses Herz auch unter den schwierigsten Bedingungen weiter schlägt.
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pH- und ORP-Sensoren für Reinwasser
Mit einem traditionellen pH-Analysator genaue und verlässliche Messwerte zu erzielen ist eine Herausforderung, aber mit der richtigen Ausrüstung lassen sich stabile und präzise Reinwasser-pH-Messungen erreichen. Der spezielle Bellomatic-pH-Sensor von Yokogawa ist eine bewährte optimale Lösung für Reinstwasseranwendungen. Für Anwender, die sich die Wartung von Nachfüllsensoren ersparen möchten, ist der FU24 mit dem erfolgreichen, patentierten und in das All-in-One-Gehäuse integrierten Faltenbalgsystem die ideale Lösung.
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Portable pH Meter PH91, Portable pH/ORP Meter PH92
Tough, easy-to-use handheld pH/ORP meter that can be carried anywhere.
It can measure pH and ORP stably and accurately.
As your daily measurement partner. -
Handmessgerät PH71/PH72
Das Messgerät PH71/PH72 für pH und/oder ORP (Redox) ist kompakt, benutzerfreundlich, wasserdicht und ideal für den Feldeinsatz. Mit „One-Touch-Kalibrierung“ und Temperaturkompensation. Intelligente pH-Messgeräte in Laborqualität – preiswert, im tragbaren Taschenformat
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Durchfluss/NPT-Armaturen FF20/FS20
Yokogawa hat viel Aufwand und Zeit in die Entwicklung einer breiten Palette von Armaturen investiert. Ein besonderer Schwerpunkt lag dabei auf der Senkung von Installations- und Wartungskosten und somit günstigeren Betriebskosten.
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Eintaucharmatur FD20
Die Eintaucharmaturen sind für pH- oder ORP (Redox)-Messungen in Tanks, offenen Behältern oder Drainagen vorgesehen. Sie verfügen über eine Halteschlaufe zum Herausziehen für eine einfache Wartung.
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Wechselarmatur PR10
Online-Messungen stellen oft eine besondere Herausforderung dar, insbesondere wenn Routinewartung erforderlich ist. Die PR10 ist ideal geeignet für Anwendungen, bei denen die Sensoren entfernt werden müssen, ohne den Prozess zu unterbrechen oder abzustellen. Ohne irgendwelche Spezialwerkzeuge kann die PR10 bei Drücken von bis zu 5 bar (72 psi) sicher aus dem Prozess gezogen werden. Mit der PR10 kann jeder beliebige Gelöstsauerstoffsensor mit PG13.5-Anschluss in eine Wechselarmatur eingesetzt werden.
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Verlängerungs-Anschlussbox BA10/WTB10
Bei größeren Entfernungen zwischen der Messstelle und dem Analysator, insbesondere wenn die Entfernung die Länge der Standard-Elektrodenkabel überschreitet, bietet dieses Anschlusszubehör eine zweckmäßige Möglichkeit zum Anschluss der Sensorkabel an das Messinstrument.
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EXAtrac RF20 Pneumatische Wechselarmatur
Die pneumatische Wechselarmatur EXAtrac RF 20 (Extrac 810 und 820) ist für die Installation von 12mm-Sensoren an Tanks oder Rohrleitungen vorgesehen, wo der Sensor ohne Unterbrechung oder Abschaltung des Prozessstroms entfernt werden muss und für schwierige Anwendungen, bei denen eine häufige Reinigung für eine gute pH-Messung von entscheidender Bedeutung ist.
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EXA Compact
EXA Compact ist erhältlich mit Durchfluss-, Einbau- und Eintaucharmaturen. Durch die große Palette lieferbarer Prozessanschlüsse gestaltet sich die Installation in einem Tank, einem offenen Behälter oder einer Rohr- bzw. Bypass-Leitung sehr einfach. Dank der sorgfältigen Auswahl chemisch beständiger Materialien eignen sich die Sensoren für die meisten Prozesse.
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pH/ORP-Pufferkalibrierlösungen
Pufferlösungen sind erforderlich als unverzichtbares Werkzeug zur Aufrechterhaltung genauer pH -Messungen. Pufferlösungen dienen als Referenzpunkte für die Kalibrierung und Justierung von pH -Messungen zur Kompensation von Alterung und Verschleiß.
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WU10 Kabel
Universelles Sensorkabel zur zuverlässigen Übertragung analoger Signale, das speziell für die Installation in Schwerindustrieumgebungen konzipiert wurde.
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Wide Body-Sensor für Wasser und Abwasser PH21
Der PH21 ist der neueste Wide Body-Sensor im Yokogawa-Sortiment für den Wasser- und Abwassermarkt.
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Produktfinder
Der "Product Finder" ist ein Web-Tool, das es Ihnen ermöglicht Produkte hinsichtlich ihrer Anwendung, Messbedingungen und erforderlichen Spezifikationen zu filtern.
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Digitaler 12mm SMART pH-Sensor SC25F
Der SC25F ist ein digitaler SMART pH-Sensor im 12 mm-Design, der über ein integriertes Temperaturelement und eine Flüssigkeitserde-Elektrode verfügt.
Publikationen
- 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.
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.
Wet scrubbers are used in utilities, paper mills, and chemical plants to remove sulfur dioxide (SO2) and other pollutants from gas streams. Undesirable pollutants are removed by contacting the gases with an aqueous solution or slurry containing a sorbent. The most common sorbents are lime, Ca(OH)2, and limestone, CaCO3.
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
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
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
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.
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.
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.
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
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
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
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.
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.
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.
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
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.
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.
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.
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.
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.
Downloads
Bulletins
- Portable pH Meter, pH/ORP Meter, Conductivity Meter (4.7 MB)
- Electrolyzer Solution Instruments and Solution for Ion-Membrane Electrolyzer Plant Application (3.4 MB)
- Liquid Analyzer Sensors and Fittings (5.9 MB)
- Model FU24 Challenging and harsh applications widebody type pH and ORP sensors (8.3 MB)
- PH71/PH72/SC72 Personal pH, pH/ORP, Conductivity Meters (1.8 MB)
- FLXA402 4-Wire Liquid Analyzer, SA11 SENCOM Smart Adapter (2.9 MB)
- Yokogawa in the water industry (17.1 MB)
Bedienungsanleitungen
- Model PR10 Manual Retractable Fitting (5.4 MB)
- Model WU10, WF10 and WE10 - VP cable and extension cable
- Model FF20 Flow fittings Model FS20 Subassembly flow fittings Model FD20 immersion fitting (3.4 MB)
- Model SC25F pH SENCOMR sensor (1.1 MB)
- PUS400G Ultrasonic Oscillator (1.3 MB)
- Model FU24F pH/ORP SENCOMR sensor (1.3 MB)
- Solid Electrolyte (Xerolyt) pH Sensor with Temperature Element (488 KB)
- PH8ECP KCl Filling Type pH Sensor (for electrolysis plant) (481 KB)
- PH8HH pH Holder for High Purity Water (617 KB)
- PH8ERP KCl Refillable type pH Sensor (715 KB)
- PH4/OR4 Sensor Series pH and ORP Sensors (679 KB)
- SPS24 SENCOM Software (1.2 MB)
- PH4B pH Sensor for Small Culture Tank (330 KB)
- PH8AX Accessory Set for pH Meter (583 KB)
- KCl Replenish-free ORP Sensor, OR10RP (136 KB)
- KCl Refillable ORP Sensor, OR10FP (121 KB)
Datenblätter
- Model PF20, PD20 and PS20 EXA Compact pH Probes (1.3 MB)
- Model WU11 Interconnection/Extension Cable for SENCOM Products (694 KB)
- Model BA11 Active Junction Box (894 KB)
- Model SM21 Industrial pH Electrodes (740 KB)
- Model SR20 Single reference electrode (pH) (2.3 MB)
- SM60 Industrial electrodes for temperature measurement (805 KB)
- SM23 Industrial electrodes for single pNa measurement (931 KB)
- Model SC29 Industrial Redox Electrodes (930 KB)
- PH4/OR4 Sensor Series pH and ORP Sensors (718 KB)
- Model SC21 Industrial pH Electrodes (950 KB)
- pH and ORP Sensors (1.6 MB)
- EXA Series Compact pH Probes (622 KB)
- *Discontinued: SENCOM FU20F / FU24F / SC25F Digital pH/ORP-sensor (3.7 MB)
- Chemical Cleaning pH Measuring System (971 KB)
- FLXA402 4-Wire Converter (1.4 MB)
- Sensor Holders (3.2 MB)
- EXAtrac Series Retractable Holder (1.0 MB)
Technische Dokumentationen
Zertifikate
Sicherheits-datenblätter
- Safety Data Sheet K1220QT / Electrolyte for individual and combined pH and ORP sensors
- K1520BK - Sodium buffer solution pH 9.00 (+/-0.02) natural (240 KB)
- K1520BG - Buffer solution NA pH 2.00 (+/-0.02) natural (254 KB)
- K1520BH - Sodium buffer solution pH4.00(+/-0.02) naturel (243 KB)
- K1520BJ - Buffer solution NA pH 7.00 (+/-0.02) natural (219 KB)
- K1520BE - Standard buffer pH 9.18 kit, yellow (233 KB)
- K1520BD - Buffer solution pH 6.87 kit, orange/yellow (231 KB)
- K1520BC - Buffer solution pH 4.01 kit, red/pink 3 x 500 ml (220 KB)
- K1520BB - Buffer solution pH 1.68 kit, green/blue 3 x 500ml (240 KB)
- K9220XE / K9084KG / K9084LM - pH7 Standard solution (165 KB)
- K9020XU / K9146CA / K9142UT - KCl powder (458 KB)
- K9020XA / Powder for buffer solution (pH4) (280 KB)
- K9220XD / K9084KF / K9084LL - pH4 Standard solution (180 KB)
- K9020XB / Powder for buffer solution (pH7) (281 KB)
- K9020XC / Powder for ph9 standard solution (251 KB)
- K9084KH, K9084LN / pH9 standard solution (189 KB)
- K9024ED / Reagent for ammonium iron sulfate solution (173 KB)
- K9220XH/ K9084KQ/ K9084KS/ K9084LP / 3.3M KCl solution (182 KB)
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