BENEFITS - Teledyne Analytical Instrs

1 6800 process Alkalinity AnalyzerModelFEATURES Alkalinity/Direct Detection Avoids Titrimetric/Colorimetric Procedures Reports Total Alkalinity Requires No Probes Windows CE Interface lntegrates with Teledyne TOC Platform lnterference Free Analysis Completely Automatic Rapid ResponseBENEFITS Cooling Towers Method Boiler/Steam Generators Chemical process Drinking Water Waste Water Foods & Beverages2 MODEL 6800 - process Alkalinity AnalyzerTeledyne Model 6800 Alkalinity Analyzer utilizes a direct measurement of Alkalinity measurement. Unlike titration method, the 6800 measures the CO2 Concentrations derived from analysis of Total Inorganic Carbon (TIC), using interference-free infrared technology.

2 Both methods are compatible, since each uses the same stochiometric relationships. For convenience in relating the technologies, phenolphthalein alkalinity is determined. Proven Analyzer PlatformBy integrating Teledyne s Non-dispersive Infrared Sensor with our field-proven Series TOC platform, the user achieves highly reliable control of their process . Alkalinity/Direct Detection Methodovercomes the limitations of traditional alkalinity tests involving multiple end point determinations of titration and colorimetric measurements. Burettes, multiple standards, complicated and troublesome rotary valves dispensing metered volumes, etc. are avoided. This method uses direct analysis of CO2 and continuously measures the following: Total Alkalinity, mg/L as CaCO3 Hydroxide Alkalinity, mg/L as CaCO3 Carbonate Alkalinity, mg/L as CaCO3 Bicarbonate Alkalinity, mg/L as CaCO3 Free Carbon Dioxide, mg/L as C02 The sample is delivered into a reaction chamber and mixed with acid to lower the pH to 2 3, at which point the species listed above are converted to C02.

3 The C02 is measured by the non-dispersive Infrared Analyzer and displayed as Total Alkalinity and Phenolphthalein Alkalinity. Method for Computing Alkalinity Based On Total Inorganic Carbon (TIC) and Related Data Standard Methods has a procedure using nomographs for estimating C02 concentrations (Method 4500-CO2-B) based on total alkalinity titrations. The method presented here reverses that process by computing alkalinity based on TIC measurements using infrared technology. These two methods are demonstrated to be compatible, which is not surprising since they use the same stoiciometric Total Inorganic Carbon, mgC/I Sample Water Temperature C (Manual or Automatic) Sample Water pH (ecternal) Manual Input of Nominal TDS value TDS, mgC/I (Manual or Automatic) OUTPUTS Total Alkalinity, mg/I as CaCO3 Other outputs (consult Factory) Hydroxide Alkalinity, mg/I as CaCO3 Carbonate Alkalinity, mg/I as CaCO3 Bicarbonate Alkalinity, mg/I as CaCO3 Free Carbon Dioxide, mg/I as C02 Standard Windows CE Computer Touch Pad The equilibrium model for C02 in water accounts for both ionic and non-ionic species.

4 C02 + H20 <===> H2C03 <===> H+ + HCO3- <===> 2H+ + C03-2 H2O <===> Hi- + OH- The dissociation constants for these reactions may be corrected for temperature and ionic strength. Equilibrium equations then provide constituent concentrations based on electrical neutrality and mass balance: Alkalinity = [HCO3-] + 2[CO3-2] + [OH-] - [H+] Total Inorganic Carbon = [H2CO3*] + [HCO3-] + [CO3-2] Based on above relationships specific equations for computing alkalinity values are derived and correlation of alkalinity and TIC is 6800 - process Alkalinity Analyzer16830 Chestnut StreetCity of Industry, CA 91748, USATEL: (626) 934-1500 or (888) 789-8168 FAX: (626) 934-1651E-MAIL: is warranted for one year against defects inmaterial or workmanshipNOTE: Specifications and features will vary with application.

5 The above are established and validated during design, but are not to be construed as test criteria for every product. All specifications and features are subject to change without : 1 to 1000 mg/L as CaCO3 Sample Temperature: 5 to 50 deg C Grab Sample Volume: 10 mL MinimumSample Flow Rate: 10 mL/min (Minimum)Sample Pressure: Atmospheric to Psi Response time: Less than 4 Mins Repeatability: Better than 2% of Reading Or mg/LAccuracy: Better than 5% of reading Or mg/LSignal output: 4-20 mADC Sensor Technology: Infrared SensorDisplay / Computer: LCD, operator menu prompting (standard) OR optional Windows CE Power supply: 110/220 VAC 10 amp service recommendedSPECIFICATIONS:Model 6800 Windows CE display showing CaCO3 parameter