Liquid analyzers are used for monitoring process chemistry including water quality, providing process optimization and control. Common measurements include pH, ORP, conductivity, resistivity, percent concentration and dissolved oxygen.
Liquid analysis is essential for protecting capital assets including boilers and cooling towers, by preventing corrosion, minimizing maintenance, and maximizing uptime.
Yokogawa is a recognized world leader for reliable liquid analytical equipment, providing accurate and repeatable solutions for maintaining and controlling even the most demanding process applications with unparalleled ease of operation.
Liquid Analytical Sensor Wiring
Use our Liquid Analyzer Sensor Wiring Guide to easily find the correct wiring for your liquid analyzer sensor.
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SENCOM™ SMART Digital Sensors
Yokogawa’s SENCOM SMART Sensor Platform is an innovative analyzer platform that optimizes maintenance, reduces configuration time, and simplifies in-field maintenance and calibration.
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pH and ORP Analyzers
pH and ORP meters, analyzers and transmitters are used for continuous process monitoring of pH and ORP to ensure water/product quality, monitor effluent discharge, batch neutralization, pulp stock, scrubbers, cooling towers, chemical, water/wastewater treatment and many other applications.
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pH and ORP Sensors
pH electrodes and sensors are the sensing portions of a pH measurement. Various installation options including retractable, flow thru, immersion, and direct insertion. Proper pH electrode/sensor selection is critical for optimal measurement results.
- All-in-One pH/ORP Sensor Series FU20 and FU24
- pH/ORP Sensors PH8EFP, PH8ERP, OR8EFG, OR8ERG
- 12mm pH Sensor SC25V
- Differential pH/ORP Sensors
- Industrial pH/ORP Electrodes
- Pure Water pH and ORP Sensors
- pH Sensor for High Purity Water PH8EHP
- pH and ORP Sensors PH4/OR4 Sensor Series
- Portable pH Meter PH91, Portable pH/ORP Meter PH92
- Sensor Holders for pH/ORP, DO and MLSS Analyzers
- pH/ORP Buffer Calibration Solutions
- Wide Body Sensor for Water and Wastewater PH21
- Product Finder
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Conductivity Analyzers
Conductivity meters, analyzers and transmitters are used for continuous process measurement and monitoring of conductivity, resistivity, WIFI, demineralizer water, RO water, percent concentration, boiler blowdown and TDS.
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Conductivity Sensors
Conductivity sensors and electrodes are used to measure process conductivity, resistivity, WIFI, demineralizer water, RO water, percent concentration, boiler blowdown and TDS. Various installation options including retractable, flow thru, immersion, and direct insertion. Proper electrode/sensor selection is critical for optimal measurement results.
- Contacting Conductivity Sensors SC42/SC4A(J)
- Pure Water (Low) Conductivity sensors SC4A(J)/SC42
- High Pressure/ High Temperature Conductivity Sensor SC42/SX42
- Conductivity Sensor SC210G
- Conductivity Sensor SC8SG
- Conductivity Sensor SC4AJ
- Inductive (Torodial, Electrodeless) Conductivity Sensor ISC40
- Percent Concentration Sensors ISC40
- Portable Conductivity Meter SC92
- High Conductivity Sensors ISC40/SC42
- Product Finder
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Dissolved Oxygen Analyzers
Dissolved Oxygen (DO) meters, analyzers and transmitters are used for continuous process measurement and monitoring of milligrams per liter (mg/l),parts per million (ppm), parts per billion (ppb), or % saturation.
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Dissolved Oxygen Sensors
Dissolved Oxygen (DO) electrodes and sensors are the sensing portions of a DO measurement. There are three common technologies for dissolved oxygen measurements: polographic, galvanic and optical. Various installation options including floating ball, retractable, flow thru, immersion, and direct insertion.
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Turbidity Analyzers
Yokogawa's Turbidity analyzers have been providing reliable turbidity measurement in Water Treatment Plants since 1959. The TB820D and TB830D are next-generation digital Turbidity analyzers that connect to FLXA402T. These are equipped with LED and new diagnostic functions, etc. to significantly reduce maintenance time.
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Chlorine Analyzers
You can find the best solution to meet the application needs, a non-reagent type chlorine analyzer for measuring free chlorine and a reagent type chlorine analyzer for measuring free chlorine or residual chlorine (total chlorine) are available.
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MLSS Analyzers
The SS400 MLSS Analyzer is a measuring system best suited to continuously and consistently measure the concentration of mixed liquor suspended solids (MLSS) in an activated-sludge treatment process found in sewage or industrial wastewater treatment facilities.
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Liquid Density Analyzer
The DM8 liquid density analyzer measures liquid density of general process liquids with high sensitivity and excellent stability. It has a measuring density range of 0 to 2.0 g/cm3, and unaffected by flow rate and viscosity. Besides general-purpose sensor, sanitary and explosionproof sensor are also available.
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Fourier Transform Near-Infrared Analyzer (FTNIR)
An FTNIR allows for a real-time continuous measurement of multiple component concentrations in a variety of processes.
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Liquid Analyzer Sensor Wiring Guide
The sensor wiring guide incorporates Yokogawa designed and supported sensors and analyzers across the entire liquid measurement product line.
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Wet Chemistry Analyzers
Yokogawa's wet chemistry analyzers are reliable and used for water analysis of sodium, silica, hydrazine and phosphate, so operators can minimize the increased risk of corrosion and associated component failure It can be reduced and mitigated.
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Product Finder
This web tool makes it easier to find products according to the application, measurement conditions and required specifications.
Resources
Water Supply Treatment
FAST/TOOLS, STARDOM, Flowmeters, Liquid Analyzers
- Bali's water treatment plant decided to employ the latest reliable control system in order to increase availability and quality of operation.
- Centralized control system using FAST/TOOLS provides the sophisticated and flexible operation.
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
After extraction from sugar cane or sugar beets, juice must be purified to remove the many other organics and minerals that accompany it. The processing to accomplish this is heavily dependent on reliable pH measurement and control as illustrated.
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
Brochures
- Product Solution Catalog (5.3 MB)
- Liquid Analyzer Sensors and Fittings (5.9 MB)
- Process Analyzers Analytical Instruments and Systems Overview
- Product Solution Catalog Applications (2.8 MB)
- Electrolyzer Solution Instruments and Solution for Ion-Membrane Electrolyzer Plant Application (3.4 MB)
- FLXA402 4-Wire Liquid Analyzer, SA11 SENCOM Smart Adapter (2.9 MB)
Instruction Manuals
- FLXA202 / FLXA21 2-Wire Analyzer Start-up Manual with Supplement (1.5 MB)
- Model PF20, PS20 and PD20 Compact pH probe (2.1 MB)
- FLXA202 / FLXA21 2-Wire Analyzer Safety Precautions with Supplement (5.3 MB)
- Model FF20 Flow fittings Model FS20 Subassembly flow fittings Model FD20 immersion fitting (3.4 MB)
- PH8HG Drop-in Sensor Guide Holder (508 KB)
- Model FU24F pH/ORP SENCOMR sensor (1.3 MB)
- Model PH202SJ [Style: S2] 2-wire pH/ORP Transmitter (293 KB)
- Electrodes - Instructions for placing colour code marks (87 KB)
- ISC202SJ [Style: S1] 2-wire Inductive Conductivity Transmitter with Supplement (371 KB)
- SC202SJ [Style: S2] 2-wire Transmitter for Conductivity or Resistivity with Supplement (1.3 MB)
- FLXA21 2-Wire Analyzer PROFIBUS PA Communication (1.8 MB)
- SS400G MLSS Converter (3.7 MB)
- PH8USF ULTRASONIC OSCILLATOR (Explosionproof Type) and PH8AL ALARM BOX (889 KB)
- Solid Electrolyte (Xerolyt) pH Sensor with Temperature Element (488 KB)
- OR8AX Accessory Set for ORP Meter (477 KB)
- pH Electrode for Fermentation Use (100 KB)
- Wiper-Washing Controller (263 KB)
General Specifications
Technical Information
- pH/ORP Analyzer Selection Guide (726 KB)
- FLXA202/FLXA21 2-Wire Analyzer HART Communication (1.8 MB)
- Accuracy, Repeatability, and Linearity
- FLEXA/EXA PH Series Process pH Meters Basic and Products (1.2 MB)
- Contacting Conductivity sensor selection guide (1.6 MB)
- Cation Differential Quick Start Guide (1.4 MB)
- Conductivity Analyzer Guide (992 KB)
- Process Liquid Analyzer Sensor Wiring Guide
Certificates
- ATEX ISC40 11ATEX0063X-Issue 1
- IECEx_DEK_14_0032X_Issue 0 SC4A, SC42 and SX42
- CAN/CSA Certificate of Compliance 70037798 (77.5 KB)
- EU_UK Declaration of Conformity SC21 2022-11-14 (146.1 KB)
- IECEx for ISC40 DEK 11.0028X-Issue 0
- DEKRA 14ATEX0074X-Issue 1 SC4A, SC42 and SX42
- DEKRA 14ATEX0074X-Issue 2 -E SC4A, SC42 and SX42 (309.0 KB)
- IECEx_DEK_14_0032X_Issue 0 SC4A, SC42 and SX42
- CAN/CSA Certificate of Compliance 70037798 (77.5 KB)
- EU_UK Declaration of Conformity PR10 2022-11-14 (139.5 KB)
- CAN/CSA Certificate of Compliance 2447837 (38.8 KB)
- EU_UK Declaration of Conformity SM23 2022-11-14 (121.1 KB)
- CAN/CSA Certificate of Compliance Supplement 70037798 (66.5 KB)
- EU_UK Declaration of conformity SX42 2022-11-14 (152.2 KB)
- FM Certificate of Conformity FM21US0083X (330.1 KB)
- EU_UK Declaration of conformity SC42 2022-11-14 (158.4 KB)
- FM Certificate of Compliance FM22CA0012X (311.0 KB)
- EU_UK Declaration of Conformity SC29 2022-11-14 (146.1 KB)
- EU_UK Declaration of Conformity DO71 2022-11-14 (149.7 KB)
- EU_UK Declaration of Conformity SC21 2022-11-14 (146.1 KB)
- EU_UK Declaration of Conformity DO72 2022-11-14 (150.2 KB)
- EU_UK Declaration of conformity SC4A 2022-11-14 (166.2 KB)
- EU_UK Declaration of Conformity ISC40G 2022-11-14 (195.2 KB)
- EU_UK Declaration of Conformity ISC40S 2022-11-14 (195.2 KB)
- EU_UK Declaration of conformity SC41 2022-11-14 (119.8 KB)
- EU_UK Declaration of conformity SC49 2022-11-14 (104.1 KB)
- EU_UK Declaration of Conformity SM21 2022-11-14 (121.1 KB)
- EU_UK Declaration of Conformity SB20 2022-11-14 (146.7 KB)
- EU_UK Declaration of Conformity SM29 2022-11-14 (146.7 KB)
- EU_UK Declaration of Conformity SM60 2022-11-14 (146.7 KB)
- EU_UK Declaration of Conformity SR20 2022-11-14 (146.7 KB)
MSDS/SDS
- SAFETY DATA SHEET K1500GG / K1520VN (93.2 KB)
- SAFETY DATA SHEET K1500GF / K1520VA (93.4 KB)
Videos
SENCOM- The Next Generation in SMART Liquid Analyzers
Yokogawa’s SENCOM SMART Sensor Platform is an innovative analyzer platform that optimizes maintenance, reduces configuration time, and simplifies in-field maintenance and calibration. Yokogawa is a recognized world leader for reliable liquid analytical equipment, providing accurate and repeatable solutions for maintaining and controlling even the most demanding process applications.
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