FLXA21是兩線模組式液體分析儀,最多可連接兩個偵測器,包括pH/ORP計、導電率計、感應式電導率計和溶氧計。
透過連接兩個相同類型的探測器,可以建構更可靠的系統作為高精度雙工系統。
不斷測量偵測器的阻抗、不對稱電位、斜率等,持續診斷電極髒污、損壞、斷裂、測量液位低等狀態。
偵測器的自我診斷功能可降低維護成本並提高營運成本。
關於OpreX
OpreX是橫河電機工業自動化(IA)和控制業務的綜合品牌,代表相關技術和解決方案的卓越性。本產品屬於 OpreX 分析儀系列,屬於 OpreX 測量類別。
Details
FLXA21的特色
兩個探測器具有高可靠性,並透過數位通訊降低維護和儀器成本
- pH/ORP、導電率和溶氧檢測器可以連接到兩個相同類型的檢測器
- 具有兩個偵測器的備用系統,可實現更高可靠性的測量
- 透過測量兩個不同的點,降低了安裝成本並節省了空間
- 兩個偵測器可在維護期間不間斷地進行連續測量
- 透過 HART 通訊降低維護/儀表成本
透過模組化結構提高可擴展性
- 模組化結構豐富的系統建構
配備各種進階功能
- 偵測器自診斷功能
不斷測量探測器的阻抗、不對稱電位、斜率等 - 健康與維護時間預測
儲存最新的五次校準結果並預測未來的維護和校準時間 - 內建快速設定
螢幕說明(指南)可輕鬆進行最小設定
觸控螢幕提高可操作性並增強操作螢幕
- 與螢幕互動時操作可靠、友善
- 多種顯示模式可供選擇,選擇自由度高。
適合廣泛應用的感測器
- 可連接各類pH/ORP、導電率、電磁導率、溶氧檢測儀
可選擇 12 種語言
- 日文、英文、中文、韓文、德文、法文、俄文、義大利文、西班牙文、捷克文、波蘭文、葡萄牙文
相容於KOSHA、ATEX等各種防爆型
- 本質安全型 ATEX、IECEx、FM、CSA 和 NEPSI,非易燃型 FM 和 CSA。
支援通信
- HART, Profibus, FieldBus
通用規格
Area Classification | General Purpose Class I Div II (without the use of IS Barrier) Class I Div I (with the use of IS Barrier) |
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Enclosure Material | Plastic (Polycarbonate) |
Housing Rating | IP66/ NEMA 4A/ CSA 3S |
Power Supply | 2-wire 24 VDC Loop Powered |
Output Signal | Bi-directional HART digital communication, superimposed on mA (4-20 mA) signal Optional FF (FOUNDATION Fieldbus) and PF (Profibus) communication |
Intrinsically safe type | ATEX, IECEx, FM, CSA and NEPSI, and nonincendive of FM and CSA. |
pH 和 ORP 測量的特點
內建校正標準表,具有溫度補償功能和穩定性檢查功能,實現高精度pH測量。
除了 pH 測量外,還可以測量溫度和氧化還原電位 (ORP)。
作為偵測器的診斷功能,不斷測量阻抗、不對稱電位、斜率等,以連續診斷偵測器的狀態,例如電極的污垢/損壞、斷線和測量液位降低。此外,還儲存最新的五次校準結果,以預測未來的維護和校準時間。
pH 和 ORP 測量規範
Input Range | pH: -2 to 16 pH (with option /K: 0 to 14 pH) ORP: -1500 to 1500 mV rH: 0 to 100 rH Temperature: Pt1000, Pt100, 6.8k, PTC10k, 3k Balco, PTC500: -30 to 140 ºC, NTC 8k55: -10 to 120 ºC | |
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Performance (The specifications are expressed with simulated inputs.) | pH | Linearity: ±0.01 pH, Repeatability: ±0.01 pH, Accuracy: ±0.01 pH |
ORP | Linearity: ±1 mV, Repeatability: ±1 mV, Accuracy: ±1 mV | |
Temperature | with Pt1000, PTC500, 6.8k, PTC10k, NTC 8k55, 3k Balco Linearity: ±0.3 ºC, Repeatability: ±0.1 ºC, Accuracy: ±0.3 ºC | |
with Pt100 Linearity: ±0.4 ºC, Repeatability: ±0.1 ºC, Accuracy: ±0.4 ºC | ||
Performance (When combined with a pH detector) | Repeatability | ±0.05 pH |
Responsiveness | 10 seconds (90% response time, temperature-equilibrium pH detector at 20 ºC and standard solution, well agitated) | |
Accuracy | ± 0.1 pH (when using PH8EFP, PH8EHP) ± 0.15 pH (when using our standard detector other than the above) |
導電率測量的特點
內建溫度補償功能和校準標準表,可監控槽池的污染情況,以實現更高精度的電導率測量。
提供高度通用的電池常數從 0.005 到 50 cm-1、兩路和四路偵測器。
支援五種溫度探測器,實現精確的溫度補償。
在軟化水、蒸氣、冷凝水和鍋爐水的分析中進行純水補償。對於製藥業純水的監測,可以根據USP第<645>項(請參閱USP23條第645項)指南(USP)的水質標準來監測製程液體品質。
導電率測量規範
Input Specification | Two or four electrodes measurement with square wave excitation, using max 60m (200ft) cable (WU40/WF10) and cell constants from 0.005 to 50.0 cm-1 | |
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Display range | Conductivity | min. 0.01 µS/cm, max. 2000 mS/cm (max 90% zero suppression) |
Resistivity | min. 0.001 kΩ x cm, max. 1000 MΩ x cm (max 90% zero suppression) | |
Temperature | min. span 25 ºC, max. span 270 ºC | |
Performance (Accuracy) (The specifications are expressed with simulated inputs.) | Conductivity | 2 µS x K cm-1 to 200 mS x K cm-1: Accuracy: ±0.5%F.S. 1 µS x K cm-1 to 2 µS x K cm-1: Accuracy: ±1%F.S. |
Resistivity | 0.005kΩ / K cm-1 to 0.5MΩ /K cm-1: Accuracy: ±0.5%F.S. 0.5MΩ / K cm-1 to 1MΩ /K cm-1: Accuracy: ±1%F.S. | |
Temperature | with Pt1000, Pb36, Ni100: Accuracy: ±0.3 ºC with Pt100, NTC 8k55: Accuracy: ±0.4 ºC | |
Temperature compensation | NaCl table: ±1 % Matrix: ±3 % | |
Temperature | 90 % (< 2 decades) in 7 seconds |
電磁測量的特點
基於電磁感應測量原理的非接觸式測量,可用於多種應用中的導電率測量,從酸鹼溶液到含鹽溶液,作為化學工業的液位監測,例如食品和化學工業、電鍍和表面處理工業以及造紙和紙漿工業。它還具有矩陣補償和輸出線性化功能,可精確分析強酸和強鹼溶液。只能連接一個感測器。
電磁測量規範
Input Specification | Compatible with the Yokogawa inductive conductivity ISC40 series with integrated temperature sensor: NTC30k or Pt1000. | |
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Input Range | Conductivity | 0 to 2000 mS/cm at 25 ºC reference temperature. |
Temperature | -20 to 140 ºC | |
Cable length | max. 60 meters total length of fixed sensor cable + WF10(J) extension cable. Influence of cable can be adjusted by doing an AIR CAL with the cable connected to a dry cell. | |
Performance (The specifications are expressed with simulated inputs.) | Conductivity | Linearity: ±(0.4 %F.S. + 0.3 µS/cm) Repeatability: ±(0.4 %F.S. + 0.3 µS/cm) |
Temperature | ±0.3 ºC | |
Step response | 90 % (< 2 decades) in 8 seconds |
溶氧測量的特點
具高功能、高可靠性和減少維護的特點。適合現場安裝,可在惡劣環境條件下使用。
不僅可以使用電流感測器,還可以使用極譜檢測器。
溶氧濃度的顯示單位有mg/L、ppm、%飽和度單位。此外,為了獲得最佳測量精度,也會根據海拔高度等的不同,對氣壓、水中鹽度、溫度等的變化進行修正。
溶氧測量規範
Input Specification | FLXA202 接受覆膜溶氧傳感器的輸出,原電池型,傳感器產生自己的驅動電壓;極譜型,感測器使用來自轉換器的外部驅動電壓。 | |
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Measurement Range | DO Sensors | Dissolved Oxygen: 0 to 50 mg/l (ppm) Temperature: -20 to 150 ºC |
DO30G | Measurement range: 0 to 20 mg/l (ppm) Temperature: 0 to 40 ºC | |
Performance (Accuracy) (Performance in ppm mode) | Linearity | ±0.05 ppm or ±0.8% F.S., whichever is greater |
Repeatability | ±0.05 ppm or ±0.8% F.S., whichever is greater | |
Accuracy | ±0.05 ppm or ±0.8% F.S., whichever is greater | |
Temperature | Linearity: ±0.3 ºC Repeatability: ±0.1 ºC Accuracy: ±0.3 ºC |
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Extension Terminal Junction Box BA10/WTB10
Between measuring plant and control rooms, especially when the distance between these places is greater than the length of the standard appropriate electrode cables, the connecting equipment can be an expedient method for connecting sensor cables to a measuring instrument.
參考
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
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.
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.
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.
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
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.
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
For safe and efficient operation, the quality of feedwater, steam, and condensate in boiler plants must be controlled and maintained in the most favorable conditions.
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.
Control of sodium chloride (NaCl) concentration at a salt dissolver where solid salt is dissolved in water, is highly important because of the electrolysis efficiency. A conventional way of measuring the concentration of supersaturated NaCl solution had been performed by using non-contact type sensors (e.g., γ-ray density meter) since NaCl, impurities, and precipitates are in the solution.
In a semiconductor plant, a variety of chemicals are used in various manufacturing processes. The chemicals used for specific purposes are produced by diluting raw liquid with demineralized water using in diluting equipment, and the control of the concentration at this point is performed by conductivity measurement.
In the manufacturing process of Pharmaceutical, Chemical and Food & Beverage industries, the cleaning and sterilization of tanks and piping are done with various cleaning solutions, fresh or hot water and steam after manufacturing products. Clean-In-Place (CIP) is the system designed for automatic cleaning and disinfecting.
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.
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
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
Removal of free oil and grease from a wastewater stream reduces the potential for equipment problems to occur further downstream. There are three forms of oil encountered in wastewater treatment at a refinery.
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.
Seawater leak detection is the post-condensation water quality management processes. Damage to the ion exchange resin, which deionizes the supplied water, is also monitored during this process, and both of these applications are executed by a conductivity analyzer. (AN10D01P01-01E)
In the past, the boiler feed tank systems in sugar factories had to be checked several times a day to make sure there were no sugar solution leaks. This was a very laborious process and, as continuous monitoring was not possible, monitoring results were not reliable. When a leak occurred, recovery operations were very costly and time-consuming. (AN10D01K01-02E)
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
To defray energy costs, many industrial plants have their own boilers to generate steam in order to produce a portion of their energy needs. In addition to generating power, the steam may also be used directly in plant processes or indirectly via heat exchangers or steam jacketed vessels.
Fish perform all their bodily functions in water. Because fish are totally dependent upon water to breathe, feed and grow, excrete wastes, maintain a salt balance, and reproduce, understanding the physical and chemical qualities of water is critical to successful aquaculture. To a great extent water determines the success or failure of an aquaculture operation.
In stable dispersion of fine particles is the pre-requisite for the selective flocculation technique involving separation of ultra-fine valuable particles from the gangue. Among mineral processing techniques selective flocculation technique is known to have outstanding potential of capturing the particles of particular mineral in slurry of mixed mineral system by selective adsorption of water soluble polymers known as flocculants.
Yokogawa has been offering the EXA200 series two- wire liquid analyzer for processes since 1990. This analyzer has been used in various fields including the quality control of raw materials in process plants in the electric power and petrochemical industries, reaction management of products, quality control in waste water facilities, and quality monitoring of river water and tap water.
下載
產品型錄
- FLXA21 2-Wire Liquid Analyzer (1.3 MB)
操作手冊
- FLXA202 / FLXA21 2-Wire Analyzer Installation and Wiring (Introduction and General Description) (4.5 MB)
- FLXA202 / FLXA21 2-Wire Analyzer Operation of pH/ORP (1.1 MB)
- FLXA202 / FLXA21 2-Wire Analyzer Operation of SC (1.2 MB)
- FLXA202 / FLXA21 2-Wire Analyzer Operation of ISC (1.1 MB)
- FLXA202 / FLXA21 2-Wire Analyzer Operation of DO (989 KB)
- FLXA202/FLXA21 Setting Table (171 KB)
- WTB10-DO1,-DO2,-DO3,-DO4 Terminal Box (687 KB)
- FLXA21 2-Wire Analyzer PROFIBUS PA Communication (1.8 MB)
- WTB10-PH# Terminal Box (823 KB)
產品規格
軟體下載
- Yokogawa DTM FOUNDATION Fieldbus
- PROFIBUS GSD file - pH/ORP Converter FLXA21 (3 KB)
- PROFIBUS GSD file - SC Converter FLXA21 (3 KB)
- PROFIBUS EDD file - pH/ORP Converter FLXA21 (217 KB)
- PROFIBUS EDD file - SC Converter FLXA21 (224 KB)
- Fieldbus DD/CF file - pH/ORP Converter FLXA21
- Fieldbus DD/CF file - SC Converter FLXA21
- HART DD file - ISC Converter FLXA21 [DevRev 1]
- Yokogawa DTM HART
- HART DD file - SC Analyzer FLXA21 [DevRev 1]
- HART DD file -DO Converter FLXA202/FLXA21 [DevRev 2]
- Yokogawa DTM PROFIBUS
- HART DD file -DO Converter FLXA21 [DevRev 1]
- HART DD file -ISC Converter FLXA202/FLXA21 [DevRev 2]
- HART DD file -SC Converter FLXA202/FLXA21 [DevRev 2]
- HART DD file -pH/ORP Converter FLXA202/FLXA21 [DevRev 2]
- HART DD file -pH/ORP Converter FLXA21 [DevRev 1]
技術訊息
- FLEXA/EXA PH Series Process pH Analyzers Measurement System and Applications (2.4 MB)
- Cation Differential Quick Start Guide (1.4 MB)
- FLXA202/FLXA21 2-Wire Analyzer HART Communication (1.9 MB)
- FLXA21 Coating Procedure (235 KB)
- Conductivity Analyzer Guide (992 KB)
- Contacting Conductivity sensor selection guide (1.6 MB)
產品外型圖
- FLXA21 2-Wire Analyzer (377 KB)
- FLXA21-D-S, FLXA21-D-U, FLXA21-D-E 2-Wire Analyzer Stainless steel Housing (316 KB)
- PH201G Distributor (214 KB)
- PH201G /TB Distributor (with /TB Terminal for power connection) (315 KB)
- Cable for pH Electrode (connect to PH202, FLXA202, FLXA21) K9148VA,K9148VB,K9148VC,K9148VD,K9148VE,K9148VF (176 KB)
- Operating Unit for Chemical Cleaning System PH8SM3-F, -G (FLXA21, FLXA202) (320 KB)
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