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Liquid Analyzers

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

YOKOGAWA Liquid Sensor Wiring GuideUse our Liquid Analyzer Sensor Wiring Guide to easily find the correct wiring for your liquid analyzer sensor.

Download the guide.

  • 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.

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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.

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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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  • 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.

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Resources

Overview:

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.
Application Note
Monitoring pH at the Headbox
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Industries:
Overview:

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.

Overview:

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
  • Liquid Analyzer Sensors and Fittings (5.9 MB)
  • Product Solution Catalog (5.3 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)
  • FLXA202 / FLXA21 2-Wire Analyzer Safety Precautions with Supplement (5.0 MB)
  • Model PF20, PS20 and PD20 Compact pH probe (2.1 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)
  • 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)
  • FLXA21 2-Wire Analyzer PROFIBUS PA Communication (1.8 MB)
  • pH Electrode for Fermentation Use (100 KB)
  • Wiper-Washing Controller (263 KB)
General Specifications
  • FLXA21 2-Wire Analyzer FOUNDATION Fieldbus Communication (835 KB)
  • Model WU11 Interconnection/Extension Cable for SENCOM Products (694 KB)
  • Model BA11 Active Junction Box (894 KB)
  • FLXA21 2-Wire Analyzer PROFIBUS PA Communication (825 KB)
  • FLXA402 4-Wire Converter (1.4 MB)
Technical Information
Certificates
  • ATEX ISC40 11ATEX0063X-Issue 1
  • 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 KB)
  • CAN/CSA Certificate of Compliance 70037798 (77 KB)
  • IECEx_DEK_14_0032X_Issue 0 SC4A, SC42 and SX42
  • CAN/CSA Certificate of Compliance 2447837 (39 KB)
  • CAN/CSA Certificate of Compliance Supplement 70037798 (66 KB)
  • FM Certificate of Conformity FM21US0083X (330 KB)
  • FM Certificate of Compliance FM22CA0012X (311 KB)
  • EU_UK Declaration of Conformity DO71 2022-11-14 (150 KB)
  • EU_UK Declaration of Conformity DO72 2022-11-14 (150 KB)
  • EU_UK Declaration of Conformity PR10 2022-11-14 (140 KB)
  • EU_UK Declaration of conformity SC4A 2022-11-14 (166 KB)
  • EU_UK Declaration of Conformity ISC40G 2022-11-14 (195 KB)
  • EU_UK Declaration of Conformity ISC40S 2022-11-14 (195 KB)
  • EU_UK Declaration of conformity SC41 2022-11-14 (120 KB)
  • EU_UK Declaration of conformity SC49 2022-11-14 (104 KB)
  • EU_UK Declaration of Conformity SM21 2022-11-14 (121 KB)
  • EU_UK Declaration of Conformity SM23 2022-11-14 (121 KB)
  • EU_UK Declaration of conformity SX42 2022-11-14 (152 KB)
  • EU_UK Declaration of conformity SC42 2022-11-14 (158 KB)
  • EU_UK Declaration of Conformity SB20 2022-11-14 (147 KB)
  • EU_UK Declaration of Conformity SM29 2022-11-14 (147 KB)
  • EU_UK Declaration of Conformity SM60 2022-11-14 (147 KB)
  • EU_UK Declaration of Conformity SR20 2022-11-14 (147 KB)
  • EU_UK Declaration of Conformity SC29 2022-11-14 (146 KB)
  • EU_UK Declaration of Conformity SC21 2022-11-14 (146 KB)
MSDS/SDS
  • SAFETY DATA SHEET K1500GG / K1520VN (93 KB)
  • SAFETY DATA SHEET K1500GF / K1520VA (93 KB)

Videos

Overview:

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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