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Introduction Trace Contamination Measurement

Long-term efficient power generation requires careful surveillance to guard against corrosive and depositing conditions and to assure conformance with EPRI, VGB or other guidelines.

Our sodium and silica analyzers pro-vide highly sensitive monitoring of steam quality to prevent corrosion and deposition on turbines. These analyz-ers are also excellent for detecting con-denser leaks and condensate polisher breakthroughs.

Sodium AnalyzersThe Thornton 2300Na and 2301Na Sodium Analyzers offer a new design for a traditional measurement for pure water treatment and power cycle chem-istry monitoring, providing assurance of water purity to minimize corrosion. Early detection of trace contamination is enabled with minimal operator supervi-sion. The sample passes through an overflow assembly that assures precise pressure and flow regulation. The flow-rate is set by a needle valve and rota-meter at only 40 mL/min, saving pure water and reagent. DIPA vapor diffuses into the sample without contamination through gas-permeable tubing. The reagent raises the pH of the sample to approximately 11 pH to enable the ion-selective electrode to respond only to sodium ion concentration. The 2301Na Analyzer enables use of either DIPA or Ammonium hydroxide for this purpose. The sample passes through the sodium sensor flow tube and into

the larger flow chamber containing a combination probe including the refer-ence electrode, a pH electrode and temperature compensator. The pH measurement is always displayed, providing in-process confirmation that the correct amount of reagent has been added to the sample. The reference and temperature compensator are shared with the sodium measurement. The sample then passes to drain. Electrodes incorporate Intelligent Sen-sor Management™ capability which stores all identification, calibration, and real-time predictive maintenance data within the sensor.

Sodium and Silica MeasurementsReduce Corrosion and Deposition

2300Na Sodium AnalyzerThe 2300Na provides automatic, walk-away calibration with automatic sensor conditioning which saves time and assures reliable operation. A choice of enclosures are available to keep con-trols protected in dirty environments or conveniently accessible in clean areas.

2301Na Sodium AnalyzerThe 2301Na Sodium Analyzer offers a panel-mounted design with available feature options such as grab sample, filtration, and analyzer enclosure allow-ing the user to select those that best fit their need. The 2301Na also allows for either DIPA or ammonium hydroxide to be used as a reagent to comply with your plant operations and safety needs.

2300Na Sodium Analyzer

2301Na Sodium Analyzer

Measurement Range 0.001-100,000 ppb 0.01-100,000 ppb

Grab Sample Yes Add-on Option

Calibration Unattended, Automatic Manual

Automatic Na Sensor Conditioning Yes No

pH Check* Yes Yes

Low Electrode Etching Frequency Yes Yes

Low Reagent Consumption Yes Yes

Reagent Used DIPA DIPA or NH4OH

Accuracy ±10% of reading; ±0.05ppb DIPA

±10% of reading; ±0.1ppb DIPA

±10% of reading; ±0.1ppb NH4OH

Enclosure Fully enclosed, Full or Half Door models

Full enclosure or Panel assembly models

*pH Check assures reagent addition is taking place for interference- free measurement

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2800Si Silica AnalyzerThe Thornton 2800Si Silica Anaylzer is a reliable on-line instrument designed specifically for pure water treatment and power cycle chemistry monitoring. This Analyzer provides assurance of water purity to optimize ion exchange production of pure water and to minimize silica deposition in turbines. Early detection of trace contamina-tion is enabled with minimal operator supervision. The analyzer allows sample to pass through an overflow assembly ensuring that a fresh sample is available to start each measure-ment cycle. A rinse period purges the previous sample from the reaction/measurement chamber and fills it with the fresh sample. The measurement is zeroed. Then, reagents are metered in and reaction time allowed to produce a color change proportional to silica concentration. Where phosphates are present, an additional reagent is included to minimize interference. The measurement is made, the display and outputs are updated and the cycle repeats. The operator can configure the measurement interval to optimize the tradeoff of response time vs. rea-gent consumption. The 2800Si con-forms to ASTM Test Method D7126.

2300NaSodium Analyzer

2301NaSodium Analyzer

2800SiSilica Analyzer

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SpecificationsMeasurements Range, sodium 0.001 – 100,000 ppb or equivalent ppm, auto – rangingResolution, sodium 4 digits with decimal, autoranging; 0.001 ppb in lowest rangeAccuracy, sodium 0 % of reading ± 0.05 ppbResponse time (90 %) 5 minUpdate rate once per secondReagent consumption diisopropylamine, DIPA, approximately 1 L per 3 months; more at higher temperatures and for cation exchange samplesSample pH 2.5 – 12Sample flowrate > 40 mL / min (> 20 mL / min for cation exchange samples) excess to drainSample temperature 10 to 45 ̊C (50 – 113 ̊F)Sample pressure 0.3 – 7 bar(g) (5 – 100 psig)Calibration Automatic, unattended 3–point known addition; manual 1 – or 2 – pointElectrode conditioning Part of auto – cal sequenceGrab sample measurement IncludedRange, pH 0.00 – 14.00 pH, reagent conditioned sampleRange, temperature (Ambient) 5 – 50.0 °C (41 – 122.0 °F)

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2300NaTrace Sodium Sensitivity, Low Maintenance, Fully Automated

The METTLER TOLEDO Thornton 2300Na Sodium Analyzer offers a new approach for a traditional measurement in pure water treatment and power cycle chemistry monitor-ing. This Analyzer provides assurance of water purity to minimize corrosion and maxi-mize water production. Early detection of trace contamination is enabled with minimal operator supervision.

Features/Benefits– Fully automatic, unattended calibration – assures reliable operation while saving technician time – Reagent addition confirmation by pH – assures consistent measurement results – Convenient grab sample measurement – for additional samples and QC checks for

other areas of the plant– Slow and complete reagent consumption – saves reagent costs and eliminates waste disposal issues– Simultaneous display of sodium, adjusted pH, temperature and calibration progress provides convenient analyzer and sample status at a glance, saving operator time– Automated electrode conditioning with each calibration – minimizes the need for electrode etching– Choice of two enclosures: full locking door for dirty plant environments or with controls conveniently accessible for clean sample rooms– Four analog outputs for sodium, pH and temperature with choice of scaling – enables full integration into data acquisition or control systems

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Microelectr.

Power

Ordering InformationDescription Order No.2300Na Sodium Analyzer, with partial door for clean sample room 58 042 0012300Na Sodium Analyzer, with full dust & water resistant enclosure 58 042 002Required Startup Kit for 2300Na 58 091 233Includes 1 L of 100 ppm sodium calibration standard solution, 250 mL of 7 and 10 pH buffer solutions and etch solutions, for 6 months of operation.

(Diisopropylamine {DIPA} reagent must be sold separately)

Diisopropylamine (DIPA) reagent, 2L 58 140 017**(for 6 months normal operation; less time at elevated temperature or for cation exchange application)

Service, Sodium Analyzer Startup* 58 092 332

Service, Spare Parts and AccessoriesConsumables kit 1 year - Includes sodium and pH/reference electrode, air filters, sample filter, diffusion 58 091 200tubing, 4L of 100 ppm calibration standard, etch solution, 250 mL of 7 and 10 pH buffer solutionReplacement sodium electrode 52 003 944Replacement pH/reference electrode 52 003 943Solution, 1L of 100 ppm calibration standard 58 078 010Solution, 4L of 100 ppm calibration standard 58 078 011Standard solution are 100 ppm as sodium, using sodium chloride* METTLER TOLEDO strongly recommends that all sodium analyzer quotes include startup service** Part number available only in the USA. In other countries consult your local METTLER TOLEDO pure water analytics representative for local sourcing

� 17.8 mm (� 0.7")

� 20.5 mm (� 0.81")

� 20.5 mm (� 0.81")

� 39.9 mm (� 1.57")

184 mm (7.25")

79 mm (3.11")49 mm (1.93")

19 mm (0.75")

17 mm (0.67")

� 38.1 mm (� 1.50")

69.8 mm (2.75")50.8 mm (2.00")

168.9 mm (6.65")

63.1 mm (2.48")

Typical Applications– Ultrapure water monitoring at sub-ppb sodium levels– Pure water treatment cation exchange monitoring detects the first

break through of sodium– Power steam quality monitoring protects turbines from sodium

attack– Power condensate monitoring detects small leaks early to allow

time to plan corrective action

Bottom Dimensions

* 190 [7.50"] for 58 042 001, as shown dotted

OutputsAnalog outputs For sodium, conditioned pH, temperature; four powered 0/4 – 20 mA, 22 mA alarm, 500 ohm max load, not for use with externally powered circuitsAnalog output scaling Linear, bi – linear, logarithmic (1,2,3 or 4 decades) or auto rangingAnalog output accuracy ± 0.05 mARelay contacts two unpowered, SPDT, 250 VAC/30VDC, 3 A resistive freely assignable to setpoints for sodium, pH, tem- perature or calibration indication for sample sequencer; other relays used for auto – calInstallation/Power/EnclosureOperator interface 4 – line backlit LCD, 5 tactile keys; simultaneous display of sodium, conditioned pH, auto – cal status (temperature optional)Connections Sample inlet: 1 / 4" or 6 mm OD tube SS compression fitting Drain hose: 19 × 25.4 mm (¾ × 1"), 2 m (6 ft) length includedPower 100 – 240 VAC, 50 – 60 Hz, 25 W; on power loss all settings are retained Dimensions HWD Enclosures: 900 × 450 × 190 mm (35.4 × 17.7 × 7.5")Weight 27 kg (60 lbs)Ambient operating temperature 5 – 50 °C (41 – 122 °F)Humidity 10 – 90 % non – condensingRatings/approvals CE, cULus pending

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SpecificationsMeasurements Range, sodium 0.01 – 100,000 ppb or equivalent ppm, auto – rangingResolution, sodium 4 digits with decimal, autoranging; 0.001 ppb in lowest rangeAccuracy, sodium ± 10% of reading ± 0.1 ppb, typical; using DIPA as reagent ± 10% of reading ± 1 ppb, typical; using ammonium hydroxide as reagentResponse time (90 %) 5 minUpdate rate once per secondReagent consumption diisopropylamine (DIPA), or ammonium hydroxide, approxi- mately 0.7 L fillings per 2 months; more at higher temperatures and for cation exchange samplesSample pH 2.5 – 12Sample flowrate > 40 mL / min (> 20 mL / min for cation exchange samples) excess to drainSample temperature 5-50 ̊C (41 – 122 ̊F)Sample pressure 0.3 – 7 bar(g) (5 – 100 psig)Calibration Manual 3–point known addition; manual 1 – or 2 – pointGrab sample measurement Available optionRange, pH 0 – 14 pH, reagent conditioned sampleRange, temperature 0– 100°C (32 – 212 °F)

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NEW! 2301NaTrace Sodium Sensitivity, Reliable Measurement, Solid Value

The METTLER TOLEDO Thornton 2301Na Sodium Analyzer offers a panel-mounted design for sodium measurement in pure water treatment and power cycle chemistry monitoring. With key technological advances, this analyzer ensures reliable measurement of water purity to minimize corrosion. The 2301Na Analyzer offers solid value and add-on fea-tures to enhance capabilities according to your needs.

Features/Benefits– Wide measurement range: 0.07ppb-100,000ppb assures early detection of trace contamination – Choice of reagent, DIPA or Ammonium Hydroxide to better comply with plant safety requirements – pH check verifies reagent delivery assuring reliability of measurement– Two models available, a panel-mounted assembly or lockable full-door enclosure– Controlled, efficient reagent consumption eliminates waste disposal issues– Low maintenance ensures low cost of ownership– Grab Sample capability is available as an add-on option for testing samples in other areas fo the plant

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? Did You KnowThe 2300 Sodium Analyzer provides

walk-away calibration and automatic sensor calibration

Key Power Applications– Make Up Water: Detects cation breakthroughs of sodium ions signaling exhaus-

tion of cation resin.– Condenser and Polisher: Warns of cation breakthrough and condenser leakage.– Economizer: Detects sodium carryover into inlet water before it enters the boiler.– Superheater: Detects sodium carryover into steam to protect turbines.

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Ordering InformationDescription Order No.2301Na Sodium Analyzer panel assembly 58 042 0032301Na Sodium Analyzer with full door enclosure 58 042 004Accessories and ConsumablesConsumables kit 1 year - Includes sodium and pH electrodes, air filters, sample filter, diffusion 58 091 111tubing, calibration kit, 7 and 10 pH buffer solutionsCalibration kit 1 year - Includes 120mL of 100ppm calibration standard, 60 mL of conditioning 58 091 108solution, etch kitDiisopropylamine (DIPA) 58 140 017Ammonium Hydroxide 30% 58 091 114

OutputsAnalog outputs For sodium, conditioned pH, temperature; four powered 0/4 – 20 mA, 22 mA alarm, 500 ohm max load, not for use with externally powered circuitsAnalog output scaling Linear, bi – linear, logarithmic (1,2,3 or 4 decades) or auto rangingAnalog output accuracy ± 0.05 mARelay contacts two unpowered, SPDT, 250 VAC/30VDC, 3 A resistive freely assignable to setpoints for sodium, pH, temperatureRange, temperature 0– 100°C (32 – 212 °F)Resolution, temperature Adjustable 0.01 to 1°C/°FInstallation/Power/EnclosureOperator interface 4 – line backlit LCD, 5 tactile keys; simultaneous display of sodium, conditioned pH, cal status (temperature optional)Connections Sample inlet: 1 / 4" or 6 mm OD tube PP compression fitting Drain hose: 19 x 25.4 mm (¾ x1"), 2 m (6 ft) length includedPower 100 – 240 VAC, 50 – 60 Hz, 25 W; on power loss all settings are retained without bat- teriesDimensions HWD 851 x 450 x165 mm (33.5 x 15.75 x 6.5")Weight 4.5 kg (10 lbs)Ambient operating temperature 5 – 50 °C (41 – 122 °F)Humidity 10 – 90 % non – condensingRatings/approvals CE, UL, IP65