Process Analytical SolutionsOptimizing Power Plant Chemistry

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METTLER TOLEDO Group

Our company specializes in providing precision instrument equipment and related services to industrial customers. In 2012, METTLER TOLEDO generated revenues of US$ 2.3 billion. The company’s stock has been publicly traded on the New York Stock Exchange since 1997.

METTLER TOLEDOCommitment to Innovation and Quality

Worldwide presenceWe have a worldwide distributor network and a workforce of more than 12,400 employees. We sup-port our customers in industry by providing comprehensive solutions for each step of their manufacturing processes – from receipt of materi-als throughout all manufacturing stages with in-line process mea-surement, through to final packag-ing control, logistics and shipping.

METTLER TOLEDO instruments are used in research and development,

manufacturing process control and for quality control. The pharmaceu-tical, biotech, chemical, food and beverage, power, and cosmetic in-dustries are among the principal users.

Innovation and quality Our company enjoys an excellent reputation as an innovator demon-strated by R&D expenditures above the average for the industry. We make every effort to achieve the highest level of quality, by applying Total Quality Management at both

the product and process level, par-ticularly as part of the support we provide to our customers to help them comply with international guidelines.

Process Analytics DivisionWithin the METTLER TOLEDO Group, the Process Analytics Division concentrates on in-line analytical system solutions for industrial man-ufacturing processes. The Division consists of two business units, Ingold and Thornton, both interna-tionally recognized leaders in their respective markets and technologies.

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Industry LeadershipThornton technology leadership isbased on an in-depth knowledgeof critical ultrapure water (UPW)measurement technology andextensive application expertise.Our innovative multi-parameterinstruments and sensors arespecified to monitor UPW systemsworldwide. Expansive measurement capabil-ities allow our instruments to beutilized throughout the entire watercycle: from makeup water to cyclechemistry to cooling to waste water,reclaim and recycle.

As part of the METTLER TOLEDOProcess Analytics Group, Thorntonhas developed world-class techno-logy in the areas of conductivity, sodium, silica, pH, ORP, dissolved oxygen and total organic carbonmeasurement. We continue to pro-vide innovative solutions with ex-panded measurement capabilitiesto meet the demanding requirements of the thermal power generationindustry.

Our extensive global support infra-structure provides local sales andservice for all METTLER TOLEDO Thornton products in most regions of the world.

Industry ParticipationAs a technical leader in ultrapurewater measurements, our staffmembers lead or participate in thefollowing power-related organizations and conferences:

Thornton – Leading Pure Water AnalyticsOver forty-five years ago, Thornton designed and manufactured the original analog resistivity/conductivity meters for ultrapure water. As a leader, we helped refine the data for pure water conductivity properties and became the measurement standard in the microelectronics industry, while gaining wide acceptance in makeup water treatment for the power industry.

• ASTM D19 Water Committee, Task Group Chairman

• Ultrapure Water Conference, Participant and featured Industry Expert

• EPRI, VGB, Eskom and other power industry conferences

• International Water Conference, papers and presentations

• International Association for the Properties of Water and Steam, member

Makeup PureWater Treatment

(pages 6-7)

WastewaterTreatment

(pages 12-13)

Cycle ChemistryMonitoring(pages 8-9)

Water Source Environment

AuxiliaryProcesses

(pages 10-11)

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• Multi-parameter capability reduces inventory

• Plug and Measure simplicity with ISM for

rapid start up

• One or two channels of measurement

• Up to four channels of measurement

• iMonitor screen provides real-time evaluation

of sensor condition

• Predictive diagnostics to proactively plan

sensor maintenance

Intelligent Sensor Management (ISM®) is a proven technology embedded in a sensor, which outputs a robust digital signal, retains unique factory and current calibration data and predicts a sensor’s need for maintenance, calibration or replacement. ISM provides improved accuracy, reliability, and safety for critical applications.

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Predictive Diagnostics

• Real-time diagnostic algorithms in the sensor ensure online performance optimization.

• Predictive maintenance information with the Dynamic Lifetime Indicator (DLI), Time to Maintenance (TTM) and Adaptive Calibration Timer (ACT) functions.

ISM offers unique and comprehen-sive product solutions rangingfrom pH, dissolved oxygen and conductivity to sodium, silica and TOC. Digital sensor technology pro-vides easy handling with pre-cali-brated Plug and Measure sensors, enhanced sensor performance and built-in diagnostics.

Proactive Maintenance• Optimize maintenance schedules to reduce costs and avoid un- planned downtime.

• ISM provides predictive service notifications, saving time and expenditure.

• Predictive maintenance reduces sensor lifecycle costs.

Innovative Measurement Solutions For Advanced Process Analytics

M300 Multi-parameter Transmitter

M800 Multi-parameter Transmitter

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• Certified, unique calibration data stored

in memory

• ISM technology provides higher accuracy

with greatly extended measurement range

• Robust digital signal directly from the sensor

• Reliable measurement based on

chemiluminescence

• Low maintenance with no membrane,

electrolyte or electrodes

• No hydrogen interference in stator

cooling monitoring

Wide Range UniCond® Conductivity Sensors

Fast Responding Optical Dissolved Oxygen Sensor

Controlling high purity water treatment requires sensitive and accurate analytical instru-mentation. As a leader in meeting stringent deionized water quality requirements, METTLER TOLEDO Thornton measurements are the accepted standard for water quality in many contract makeup water treatment systems.

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For Makeup Water Treatment

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METTLER TOLEDO Thornton multi-parameter transmitters and sensors provide a convenient platform for measurements throughout the makeup water system, from pre-treatment to final deionized water storage.

Reverse osmosis system operation demands continuous monitoring to detect and correct abnormal oper-ating conditions and prevent damage to costly membranes.

Our instrument platforms include measurements of pH and ORP to protect membranes. The same plat-forms measure conductivity, tem-perature and flowrate for close sur-veillance of membrane performance.

Efficient operation and regeneration of ion exchangers also depend on continuous monitoring of key parameters. Our UniCond conduc-tivity, 2300Na sodium, 2800Si silica and 5000TOCi total organic

carbon (TOC) analyzers provide a complete picture of water quality with real-time information to take corrective action when needed.

Measurement Parameters

• pH/ORP• Conductivity• % Rejection• % Recovery• Flow• Sodium• Silica• Dissolved Oxygen• TOC

• Up to four channels of measurement

• iMonitor screen provides real-time evaluation

of sensor condition

• Predictive diagnostics to proactively plan sen-

sor maintenance

M800 Multi-parameter Transmitter

• pH and ORP measurement from a single probe

• Digital signal reliability

• Predictive maintenance enabled with ISM

Compact pH/ORP Sensors

Visit the competence center www.mt.com / pro_power

Leading Analytical Measurements For Makeup Water Treatment

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• Plug and Measure simplicity with highest

factory calibration accuracy

• Wide range, covers entire makeup treatment

system with one model

• Digital signal reliability

• Warns of organic fouling of anion exchange resin

• Detects ppb organics in cogeneration

condensate return

• Up to four TOC sensors on a single M800 transmitter

Wide Range UniCond® Conductivity Sensor

Continuous Reading 5000TOCi Total Organic Carbon Sensor

• Minimal operator supervision

• Unattended automatic electrode conditioning

and calibration

• Convenient grab sample capability

• Plug and Measure capability with ISM

• Excellent long-term stability

• Low maintenance without membrane,

electrolyte or electrodes

Fully Automatic 2300Na Sodium Analyzer

Fast Responding Optical Dissolved Oxygen Sensor

Long-term efficient power generation requires careful surveillance to guard against corro-sive and depositing conditions and to assure conformance with EPRI, VGB or other guide-lines. METTLER TOLEDO Thornton expertise for these measurements includes intuitive multi-parameter transmitters and sensors. Especially low-volume sensor housings ensure timely response by preventing accumulation of corrosion products around sensing elements.

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Reliable MeasurementsReduce Corrosion and Deposition

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The UniCond conductivity sensor produces highest accuracy cation and degassed cation conductivity measurements, due to the system calibration of a built-in measuring circuit, cell constant and tempera-ture sensor. From these accurate conductivity measurements, calcu-lated pH is available in all of our transmitter platforms.

The pHure Sensor gives reliable di-rect pH measurement with minimal maintenance. This backup mea-

surement is useful if upset cycle chemistry conditions go outside the limits for accurate pH calculation.

METTLER TOLEDO Thornton offers several options for measuring dis-solved oxygen to achieve control at ppb levels appropriate for the cycle chemistry treatment used.

Our sodium and silica ana- lyzers provide highly sensitivemonitoring of steam quality toprevent corrosion and deposition

on turbines. These analyzers are also excellent for detecting con-denser leaks and condensate pol-isher breakthrough.

Measurement Parameters

• Specific and cation conductivity• Calculated pH• pH/ORP by electrode• Dissolved oxygen• Sodium• Silica• TOC

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• Highest accuracy pH measurement due to flowing

liquid electrolyte

• Wide conductivity electrode spacing prevents fouling

• Precise temperature compensation for specific and

cation conductivity samples

• Adjustable measurement interval for reagent

savings

• Unattended automatic span calibration

• Zero calibration with each measurement

pHure pH and UniCond® Sensors Optimized for Pure Waters

Low Maintenance 2800Si Silica Analyzer

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• Multi-parameter capability reduces inventory

• Plug and Measure simplicity with ISM for

rapid start up

• Durable pH sensors provide long life under

extreme conditions

• pH and ORP measurement with a single probe

• Measurement electronics in the sensor

results in higher accuracy and enables

predictive diagnostics

High Visibility M300 Transmitter

Compact pH/ORP Sensors

Cooling water must be monitored closely to minimize scaling, biofouling and corrosion. Thornton sensors for conductivity, pH and ORP allow reliable measurement even under fouling conditions.

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Balance of Plant Water UseDepends on Reliable Analytics

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In cooling towers, conductivity is used to control blow down of ex-cess mineral build up. Measuring and controlling pH helps prevent scaling and optimizes conditions for water treatment effectiveness. ORP can be used to monitor oxidizing biocides. With METTLER TOLEDO Thornton multi-parameter transmitters and sensors these three measurements are efficiently combined.

Another use of METTLER TOLEDO Thornton pH sensors is in the con-trol of limestone slurry dosing in flue gas desulfurization wet scrub-bers. In this process careful control of pH is essential to achieve effi-cient removal of SOx and obtain satisfactory gypsum slurry properties.

Other applications such as genera-tor stator cooling present chal-lenges in maintenance of sensors while minimizing corrosion. Chal-lenges that our sensors and auto-mated cleaning systems easily meet.

Measurement Parameters

• Conductivity• pH/ORP• Dissolved oxygen

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• High range measurement for deionizer

regeneration

• Controls accurate acid/caustic dilution

• Enables direct concentration readout

• High temperature/pressure ratings for

un-cooled samples

• Suitable for auxiliary boiler blowdown and

other modest hot samples

• Wide range temperature compensation

Chemical Resistant 4-Electrode Conductivity Sensors

Robust Boiler Conductivity Sensor

Visit the competence center www.mt.com / pro_power

Balance of Plant Water UseDepends on Reliable Analytics

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Measurement Parameters

• pH/ORP • Conductivity

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Single probe pH sensors combining measuring, reference, temperature and solution ground elements en-able straightforward insertion and removal for cleaning and calibra-tion. This can be accomplished either manually or automatically using EasyClean™ sensor cleaning and calibration systems. For waste-

water neutralization, METTLER TOLEDO Thornton transmitters in-clude built-in PID control with out-put signals compatible with all types of control valves and meter-ing pumps. This can be especially convenient when a PLC or other

control system is not available in the area.

Waste streams are treated to remove contaminants and to satisfy environmental regula-tions. METTLER TOLEDO offers a wide selection of pH electrodes and cleaning techniques to reduce maintenance in these applications.

• Unattended cleaning and calibration

• Ensures maximum sensor performance

and availability

EasyClean Sensor Cleaning and Calibration System

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• Multi-channel transmitters with multi-parameter

measurement flexibility

• Plug and Measure simplicity with ISM

• Manually or pneumatically controlled

retraction

• Choice of process fittings and materials

M300 and M800 Multi-parameter Transmitters

Labor-saving pH/ORP Sensor Housings

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Product Service Offeringsfor End Users and Project Engineers

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METTLER TOLEDO embraces the complete spectrum of service offerings ranging from product selection guidance, to installation and service contracts.

A Wide Spectrum of Services We offer comprehensive services from product consultation and ap-plication support to installation and after market service contracts. Our sales consultants and high level of technical service capabilities have established METTLER TOLEDO as a competent partner for our global users across the world. Many lead-ing manufacturing companies rely on our expertise and long-standing experience to leverage their mainte-nance programs.

Traceability Lineage

Thornton Meters

Calibration Lab

Thornton Calibrators

National Institueof Standards &

Technology (NIST)

PrecisionMulti-meter

ThorntonSensors

Thornton Reference Sensors

American Society ofTesting & Materials(ASTM) Solutions

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Visit the competence center www.mt.com / pro_power

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Global ReachBased from several global prod-uction sites, with more than 40market organizations and numer-ous international sales offices, METTLER TOLEDO maintains a worldwide distribution and service network to support our global cus-tomer base.

Superior Application SupportConsultative applications supportsaves time and money. We offerdetailed technical product documen-tation together with local support during specification, installationand commissioning, contributing toon schedule project realization.

Superior Services • Repair at service depot • Sensor refurbishment • Installation/commissioning • Training/seminars/webinars • Maintenance contracts • Factory re-calibration • On-site qualification/verification • Quality documentation • Validation support • Support in compiling SOPs

Visit us online to discover how METTLER TOLEDO products and solutions can improve measurements in your plant. • product information• white papers• application notes• on-demand webinars• videos

4www.mt.com/pro_power

Power Competence Center The Latest News on Applications and Products

www.mt.com/thornton

Mettler-Toledo Thornton, Inc.900 Middlesex Turnpike, Bldg. 8 Billerica MA, 01821 USAPhone +1 781 301 8600Fax +1 781 301 8701Toll-free +1 800 510 PURE (US & Canada only)thornton.info@mt.com

Subject to technical changes© 10/13 Mettler-Toledo Thornton, Inc. 58 087 010 Rev H 10/13

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