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Thermo Scientific AQUAfast AQ3700, User Manual

The Thermo Scientific AQUAfast AQ3700, a cutting-edge device incorporating advanced technology, guarantees accurate and swift measurements. Enhance your experience by accessing the comprehensive and user-friendly User Manual, available for free download on our website. Maximize your product's potential with step-by-step instructions and detailed specifications.

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Table of Contents

Part 1 Methods

 ......................................................................................................7

1.1 Table of Methods

 .......................................................................................................8

Acid demand to pH 4.3 ....................................................................................................12
Alkalinity-total (Alkalinity-m, m-Value) ..............................................................................14
Alkalinity-p (p-Value) ........................................................................................................16
Aluminium, tablets ...........................................................................................................18
Aluminium, powder packs ...............................................................................................20
Ammonia, tablets ............................................................................................................22
Ammonia, powder packs .................................................................................................24
Ammonia, low range (LR) .................................................................................................26
Ammonia, high range (HR) ...............................................................................................28
Boron ..............................................................................................................................30
Bromine ...........................................................................................................................32
Chloramine (mono) and Free Ammonia ............................................................................34
Chloride ...........................................................................................................................38
Chlorine ...........................................................................................................................40
Chlorine, tablets
  differentiated determination (free, combined, total) .....................................................42
  free Chlorine ................................................................................................................44
  total Chlorine ...............................................................................................................45
Chlorine, liquid reagent
  differentiated determination (free, combined, total) .....................................................46
  free Chlorine ................................................................................................................48
  total Chlorine ...............................................................................................................49
Chlorine, powder packs
  differentiated determination (free, combined, total) .....................................................50
  free Chlorine ................................................................................................................52
  total Chlorine ...............................................................................................................53
Chlorine Dioxide ..............................................................................................................54
  in presence of Chlorine ................................................................................................56
  in absence of Chlorine .................................................................................................59
Chlorine HR (Kl) ...............................................................................................................60
COD, 
  low range (LR) ..............................................................................................................62
  middle range (MR) .......................................................................................................64
  high range (HR) ............................................................................................................66
Colour, True and Apparent (APHA) ...................................................................................68
Copper, tablets ................................................................................................................70
  differentiated determination (free, combined, total) .....................................................71
  free Copper .................................................................................................................72
  total Copper ................................................................................................................73

Summary of Contents for AQUAfast AQ3700

Page 1: ...Thermo Scientific Orion AQUAfast AQ3700 Colorimetry Meter User Guide ...

Page 2: ...Triode Minimum Stir Requirement MSR NISS Optimum Results Orion Dual Star Orion Star SAOB SMART AVERAGING SMART STABILITY Star LogR Star Navigator 21 Stat Face Triode are trademarks of Thermo Fisher Scientific Inc and its subsidiaries Guaranteed Success and The Technical Edge are service marks of Thermo Fisher Scientific Inc and its subsidiaries 2010 Thermo Fisher Scientific Inc All rights reserved...

Page 3: ... unpacking setting up or using the meter Please read the method description completely before performing the test Be aware of the risks of using the required reagents by reading the MSDS Material Safety Data Sheets Failure could result in serious injury to the operator or damage to the instrument MSDS files can be downloaded at www thermoscientific com water by entering the catalog number into the...

Page 4: ...ifferentiated determination free combined total 42 free Chlorine 44 total Chlorine 45 Chlorine liquid reagent differentiated determination free combined total 46 free Chlorine 48 total Chlorine 49 Chlorine powder packs differentiated determination free combined total 50 free Chlorine 52 total Chlorine 53 Chlorine Dioxide 54 in presence of Chlorine 56 in absence of Chlorine 59 Chlorine HR Kl 60 COD...

Page 5: ...ron powder packs 108 Iron TPTZ powder packs 110 Manganese tablets 112 Manganese LR powder packs 114 Manganese HR powder packs 116 Molybdate tablets 118 Molybdate HR powder pack 120 Nitrate 122 Nitrite tablets 124 Nitrite LR powder packs 126 Nitrogen total LR tube test 128 Nitrogen total HR tube test 130 Oxygen active tablets 132 Oxygen LR dissolved 134 Ozone 136 in presence of Chlorine 138 in abse...

Page 6: ...der packs 186 Sulfide 188 Sulfite 190 Suspended Solids 192 Turbidity 194 Urea 196 Zinc 198 1 2 Important notes 200 1 2 1 Correct use of reagents 200 1 2 2 Cleaning vials and accessories for analysis 201 1 2 3 Guidelines for photometric measurements 201 1 2 4 Sample dilution techniques 203 1 2 5 Correcting for volume additions 203 Part 2 Operating Manual 205 2 1 Operation 206 2 1 1 Set Up 206 2 1 2...

Page 7: ...e absorbance 216 2 4 Meter settings Mode Menu 217 2 4 2 Instrument basic settings 1 218 2 4 3 Printing of stored results 222 2 4 4 Recall delete stored results 228 2 4 5 User Calibration 233 2 4 6 Lab function 237 2 4 7 User operations 238 2 4 8 Special functions 248 2 4 9 Instrument basic settings 2 250 2 4 10 Instrument special functions Service 250 2 5 Data transfer 251 2 5 1 Data printing 251 ...

Page 8: ... Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide ...

Page 9: ... Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide Part 1 Methods ...

Page 10: ...enol 660 34 90 Chloride T tablet 0 5 25 mg l Cl Silver nitrate turbidity 530 34 100 Chlorine T tablet 0 01 6 mg l Cl2 DPD1 2 3 530 36 38 101 Chlorine L liquid 0 02 4 mg l Cl2 DPD1 2 3 530 36 42 110 Chlorine PP PP 0 02 2 mg l Cl2 DPD1 2 530 36 46 120 Chlorine dioxide T tablet 0 05 11 mg l ClO2 DPD Glycine1 2 530 50 105 Chlorine HR Kl T tablet 5 200 mg l Cl2 KI Acid5 530 56 130 COD LR TT tube test 0...

Page 11: ...ablet 0 2 4 mg l Mn Formaldoxime 530 104 242 Manganese LR PP PP liquid 0 01 0 7 mg l Mn PAN 560 106 243 Manganese HR PP PP liquid 0 1 18 mg l Mn Periodate oxidation2 530 108 250 Molybdate T tablet 1 50 mg l MoO4 Thioglycolate4 430 110 252 Molybdate HR PP PP 0 5 66 mg l MoO4 Mercaptoacetic acid 430 112 265 Nitrate TT tube test 1 30 mg l N Chromotropic acid 430 114 270 Nitrite T tablet 0 01 0 5 mg l...

Page 12: ...156 331 pH Value L liquid 6 5 8 4 Phenolred5 560 158 332 pH Value HR T tablet 8 0 9 6 Thymolblue 5 560 160 340 Potassium T tablet 0 7 12 mg l K Tetraphenylborate Turbidity4 430 162 350 Silica T tablet 0 05 4 mg l SiO2 Silicomolybdate 2 3 660 164 351 Silica LR PP PP 0 1 1 6 mg l SiO2 Heteropolyblue 2 660 166 352 Silica HR PP PP 1 90 mg l SiO2 Silicomolybdate 2 430 168 212 Sodium hypochlorite T tabl...

Page 13: ... from approximately half up to double the amount present in the sample itself These supplementary results make it possible to estimate the actual concentration of the original sample by comparison Literature The reagent formulations are based on internationally recognized test methods Some are described in national and or international guidelines Deutsche Einheitsverfahren zur Wasser Abwasser und ...

Page 14: ...ss ZERO key 4 Remove the vial from the sample chamber 5 Add one ALKA M METER tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key The result is shown in the display as ...

Page 15: ... AQUAfast AQ3700 Colorimeter User Guide 1 1 Methods Notes 1 The terms total Alkalinity Alkalinity m m Value and Acid demand to pH 4 3 are identical 2 For accurate results exactly 10 ml of water sample must be taken for the test ...

Page 16: ...ligned 3 Press ZERO key 4 Remove the vial from the sample chamber 5 Add one ALKA M METER tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key The result is shown in the...

Page 17: ...cal 2 For accurate results exactly 10 ml of water sample must be taken for the test 3 Conversion table Acid demand to pH 4 3 DIN 38 409 KS4 3 German dH English eH French fH 1 mg l CaCO3 0 02 0 056 0 07 0 1 Carbonate hardness reference Hydrogencarbonate anions Example 10 mg l CaCO3 10 mg l x 0 056 0 56 mg l dH 10 mg l CaCO3 10 mg l x 0 02 0 2 mmol l 4 CaCO3 dH eH fH aH ...

Page 18: ...igned 3 Press ZERO key 4 Remove the vial from the sample chamber 5 Add one ALKA P METER tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key The result is shown in the ...

Page 19: ...linity p 0 Hydrogen carbonate m Carbonate 0 Hydroxide 0 Case 2 Alkalinity p 0 and Alkalinity m 2p Hydrogen carbonate m 2p Carbonate 2p Hydroxide 0 Case 3 Alkalinity p 0 and Alkalinity m 2p Hydrogen carbonate 0 Carbonate 2m 2p Hydroxide 2p m 1 1 Methods Notes 1 The terms Alkalinity p p Value and Alkalinity to pH 8 2 are identical 2 For accurate test results exactly 10 ml of water sample must be tak...

Page 20: ... tablet using a clean stirring rod and mix to dissolve the tablet 6 Add one ALUMINIUM No 2 tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod 7 Close the vial tightly with the cap and swirl gently several times until the tablets are dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key Wait for a...

Page 21: ...is is generally insignificant unless the water has fluoride added artificially In this case the following table should be used Fluoride mg l F Displayed value Aluminium mg l Al 0 05 0 10 0 15 0 20 0 25 0 30 0 2 0 05 0 11 0 16 0 21 0 27 0 32 0 4 0 06 0 11 0 17 0 23 0 28 0 34 0 6 0 06 0 12 0 18 0 24 0 30 0 37 0 8 0 06 0 13 0 20 0 26 0 32 0 40 1 0 0 07 0 13 0 21 0 28 0 36 0 45 1 5 0 09 0 20 0 29 0 37...

Page 22: ...ter the reaction period is finished proceed as follows 5 Add the contents of one Hexamine F20 Powder Pack straight from the foil to the same water sample 6 Dissolve the powder using a clean stirring rod 7 Add 1 drop of Aluminum ECR Masking Reagent in the vial marked as blank 8 Add 10 ml of the prepared water sample to the vial this is the blank 9 Add the remaining 10 ml of the prepared water sampl...

Page 23: ...lts the sample temperature must be between 20 C and 25 C 3 A low test result may be given in the presence of Fluorides and Polyphosphates The effect of this is generally insignificant unless the water has fluoride added artificially In this case the following table should be used Fluoride mg l F Displayed value Aluminium mg l Al 0 05 0 10 0 15 0 20 0 25 0 30 0 2 0 05 0 11 0 16 0 21 0 27 0 32 0 4 0...

Page 24: ... crush the tablet using a clean stirring rod 6 Add oneAMMONIA No 2 tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod 7 Close the vial tightly with the cap and swirl several times until the tablets are dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key Wait for a reaction period of 10 minutes ...

Page 25: ...tant for full color development At a temperature below 20 C the reaction period is 15 minutes 4 Sea water samples Ammonia conditioning reagent is required when testing sea water or brackish water samples to prevent precipitation of salts Fill the test tube with the sample to the 10 ml mark and add one level spoonful of Conditioning Powder Mix to dissolve then continue as described in the test inst...

Page 26: ... the reaction period is finished proceed as follows 6 Add the contents of one Ammonia Cyanurate F10 Powder Pack straight from the foil to each sample 7 Close the vials tightly with the caps and shake to mix the contents 8 Press key Wait for a reaction period of 15 minutes After the reaction period is finished proceed as follows 9 Place the vial the blank in the sample chamber making sure that the ...

Page 27: ... the sample by performing a total Iron test b add the same iron concentration as determined to the deionized water step 1 The interference will be blanked out successfully Magnesium greater than 6000 mg l CaCO3 Nitrate greater than 100 mg l NO3 N Nitrite greater than 12 mg l NO2 N Phosphate greater than 100 mg l PO4 P Sulfate greater than 300 mg l SO4 Sulfide intensifies the color Glycine Hydrazin...

Page 28: ...rate F5 Powder Pack straight from the foil into each vial 5 Close the vials tightly with the caps and swirl several times to dissolve the powder 6 Press key Wait for a reaction period of 20 minutes After the reaction period is finished proceed as follows 7 Place the vial the blank in the sample chamber making sure that the marks are l aligned 8 Press ZERO key 9 Remove the vial from the sample cham...

Page 29: ...wn to be present add one drop of 0 1 mol l Sodium thiosulfate for each 0 3 mg l Cl2 in a one litre water sample 3 Iron interferes with the test The interferences will be eliminated as follows Determine the amount of total iron present in the water sample To produce the blank add an iron standard solution with the same iron concentration to the vial point 1 instead of deionized water 4 Conversion m...

Page 30: ...rate F5 Powder Pack straight from the foil into each vial 5 Close the vials tightly with the caps and swirl several times to dissolve the powder 6 Press key Wait for a reaction period of 20 minutes After the reaction period is finished proceed as follows 7 Place the vial the blank in the sample chamber making sure that the marks are l aligned 8 Press ZERO key 9 Remove the vial from the sample cham...

Page 31: ...nown to be present add one drop of 0 1 mol l Sodium thiosulfate for each 0 3 mg l Cl2 in a one litre water sample 3 Iron interferes with the test The interferences will be eliminated as follows Determine the amount of total iron present in the water sample Add an iron standard solution with the same concentration to the vial point 1 instead of deionized water to produce the blank 4 Conversion mg l...

Page 32: ... tablet using a clean stirring rod and dissolve the tablet 6 Add one BORON No 2 tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod 7 Close the vial tightly with the cap and swirl several times until the tablets are dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key Wait for a reaction period o...

Page 33: ... tablets must added in the correct sequence 2 The sample solution should have a pH value between 6 and 7 3 Interferences are prevented by the presence of EDTA in the tablets 4 The rate of color development depends on the temperature The temperature of the sample must be 20 C 1 C 5 B H3 BO3 ...

Page 34: ...from the sample chamber and empty it leaving a few drops remaining in the vial 5 Add one DPD No 1 tablet straight from the foil and crush the tablet using a clean stirring rod 6 Add water sample to the 10 ml mark 7 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key ...

Page 35: ...ing or shaking must be avoided The analysis must take place immediately after taking the sample 3 The DPD color development is carried out at a pH value of 6 2 to 6 5 The reagent tablet therefore contains a buffer for the pH adjustment Strong alkaline or acidic water samples must be adjusted between pH 6 and pH 7 before the reagent is added use 0 5 mol l Sulfuric acid resp 1 mol l Sodium hydroxide...

Page 36: ...Select the desired determination with the arrow keys and Confirm with key Notes 1 Full color development temperature The reaction periods indicated in the manual refer to a sample temperature between 18 and 20 C Due to the fact that the reaction period is strongly influenced by sample temperature you have to adjust both reaction periods according to the following table Sample temperature in C Reac...

Page 37: ... Monochlor FRGT Powder Pack straight from the foil into the water sample 6 Close the vial tightly with the cap and swirl several times to mix the contents approx 20 seconds 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key Wait for a reaction period of 5 minutes After the reaction period is finished the measurement starts automatically The result is sho...

Page 38: ... sample chamber making sure that the marks are aligned 3 Press ZERO key 4 Remove the vial from the sample chamber 5 Add the contents of one Monochlor FRGT Powder Pack straight from the foil into the chloramine vial 6 Close the vial tightly with the cap and swirl several times to mix the contents approx 20 seconds 7 Add 1 drop of Free Ammonia Reagent Solution into the ammonia vial Note 1 8 Close th...

Page 39: ...eriod of 5 minutes After the reaction period is finished the measurement starts automatically The result is shown in the display in mg l Monochloramine and mg l free Ammonia The reading of Monochloramine is shown as mg l Cl2 mg l NH2 Cl mg l N The reading of Ammonia is shown as N Conversion mg l NH4 mg l N 1 29 mg l NH3 mg l N 1 22 Notes 1 Hold the bottle vertically and squeeze slowly 2 To determi...

Page 40: ...t using a clean stirring rod and dissolve the tablet 6 Add one CHLORIDE T2 tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod 7 Close the vial tightly with the cap and swirl gently several times until the tablet is dissolved Note 1 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key Wait for a reaction p...

Page 41: ... Heavy shaking leads to bigger sized particles which can cause false readings 2 High concentrations of electrolytes and organic compounds have different effects on the precipitation reaction 3 Ions which also form deposits with Silver nitrate in acidic media such as Bromides Iodides and Thiocyanates interfere with the analysis 4 Highly alkaline water should if necessary be neutralised using Nitric...

Page 42: ...e with Powder Pack 0 02 2 mg l Cl2 The following selection is shown in the display for the differentiated determination of free combined and total Chlorine for the determination of free Chlorine for the determination of total Chlorine Select the desired determination with the arrow keys and Confirm with key Chlorine diff free total diff free total 0 0 1 0 1 1 0 1 1 ...

Page 43: ...justed between pH 6 and pH 7 before the reagent is added use 0 5 mol l Sulfuric acid resp 1 mol l Sodium hydroxide 5 Exceeding the measuring range Concentrations above 10 mg l Chlorine using tablets 4 mg l Chlorine using liquid reagents 2 mg l using powder packs can lead to results showing 0 mg l In this event the water sample must be diluted with water free of Chlorine 10 ml of the diluted sample...

Page 44: ...DPD No 1 tablet straight from the foil and crush the tablet using a clean stirring rod 6 Add water sample to the 10 ml mark 7 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key 10 Remove the vial from the sample chamber 11 Add one DPD No 3 tablet straight from the f...

Page 45: ...e aligned 14 Press TEST key Wait for a reaction period of 2 minutes After the reaction period is finished the measurement starts automatically The result is shown in the display in mg l free Chlorine mg l combined Chlorine mg l total Chlorine Notes See page 37 T1 accepted prepareT2 press TEST Countdown 2 00 mg l free Cl mg l comb Cl mg l total Cl ...

Page 46: ...ample chamber and empty it leaving a few drops remaining in the vial 5 Add one DPD No 1 tablet straight from the foil and crush the tablet using a clean stirring rod 6 Add water sample to the 10 ml mark 7 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key The result...

Page 47: ...DPD No 1 tablet and one DPD No 3 tablet straight from the foil and crush the tablets using a clean stirring rod 6 Add water sample to the 10 ml mark 7 Close the vial tightly with the cap and swirl several times until the tablets are dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key Wait for a reaction period of 2 minutes After the reaction per...

Page 48: ...l with drops of the same size by holding the bottle vertically and squeeze slowly 6 drops of DPD 1 buffer solution 2 drops of DPD 1 reagent solution 6 Add water sample to the 10 ml mark 7 Close the vial tightly with the cap and swirl several times to mix the contents 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key 10 Remove the vial from the sample ch...

Page 49: ...e reaction period is finished the measurement starts automatically The result is shown in the display in mg l free Chlorine mg l combined Chlorine mg l total Chlorine Notes 1 After use replace the bottle caps securely noting the color coding 2 Store the reagent bottles in a cool dry place ideally between 6 C and 10 C 3 Also see page 37 T1 accepted prepareT2 pressTEST Countdown 2 00 mg l free Cl mg...

Page 50: ...ttle vertically and squeeze slowly 6 drops of DPD 1 buffer solution 2 drops of DPD 1 reagent solution 6 Add water sample to the 10 ml mark 7 Close the vial tightly with the cap and swirl several times to mix the contents 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key The result is shown in the display in mg l free Chlorine Notes free and total Chlori...

Page 51: ...e by holding the bottle vertically and squeeze slowly 6 drops of DPD 1 buffer solution 2 drops of DPD 1 reagent solution 3 drops of DPD 3 solution 6 Add water sample to the 10 ml mark 7 Close the vial tightly with the cap and swirl several times to mix the contents 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key Wait for a reaction period of 2 minutes...

Page 52: ... the foil to the water sample 6 Close the vial tightly with the cap and swirl several times to mix the contents approx 20 seconds 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key 9 Remove the vial from the sample chamber empty the vial rinse vial and cap several times and then fill the vial with 10 ml of the water sample 10 Add the contents of one Chlo...

Page 53: ...re aligned 13 Press TEST key Wait for a reaction period of 3 minutes After the reaction period is finished the measurement starts automatically The result is shown in the display in mg l free Chlorine mg l combined Chlorine mg l total Chlorine Notes See page 37 mg l free Cl mg l comb Cl mg l total Cl T1 accepted prepareT2 pressTEST Countdown 3 00 ...

Page 54: ... ZERO key 4 Remove the vial from the sample chamber 5 Add the contents of one Chlorine FREE DPD F10 Powder Pack straight from the foil to the water sample 6 Close the vial tightly with the cap and swirl several times to mix the contents approx 20 seconds 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key The result is shown in the display in mg l free Ch...

Page 55: ...ents of one Chlorine TOTAL DPD F10 Powder Pack straight from the foil to the water sample 6 Close the vial tightly with the cap and swirl several times to mix the contents approx 20 seconds 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key Wait for a reaction period of 3 minutes After the reaction period is finished the measurement starts automatically ...

Page 56: ...2 The following selection is shown in the display for the determination of Chlorine dioxide in the presence of Chlorine for the determination of Chlorine dioxide in the absence of Chlorine Select the desired determination with the arrow keys and Confirm with key Chlorine dioxide with Cl without Cl with Cl without Cl 2 0 1 ...

Page 57: ...nalysis must take place immediately after taking the sample 3 The DPD color development is carried out at a pH value of 6 2 to 6 5 The reagent tablet therefore contains a buffer for the pH adjustment Strong alkaline or acidic water samples must be adjusted between pH 6 and pH 7 before the tablet is added use 0 5 mol l Sulfuric acid resp 1 mol l Sodium hydroxide 4 Exceeding the measuring range Conc...

Page 58: ...o 1 tablet straight from the foil and crush the tablet using a clean stirring rod 6 Fill a second clean vial with 10 ml of the water sample 7 Add one GLYCINE tablet straight from the foil and crush the tablet using a clean stirring rod 8 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 9 Transfer the contents of the second vial into the prepared vial 10 Clo...

Page 59: ... chamber 20 Add one DPD No 3 tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod 21 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 22 Place the vial in the sample chamber making sure that the marks are aligned 23 Press TEST key Wait for a reaction period of 2 minutes After the reaction period is finished ...

Page 60: ...tely 0 4 more exactly 0 38 mg l ClO2 mg l ClO2 Cl x 0 38 ClO2 Cl ClO2 Chlorine dioxide displayed as Chlorine units ClO2 Cl has its origin in swimming poolwater treatment according to DIN 19643 2 The total Chlorine result given includes the contribution of the Chlorine dioxide as Chlorine reading For true total Chlorine value subtract the Chlorine dioxide as Chlorine reading from the quoted total C...

Page 61: ... it leaving a few drops remaining in the vial 5 Add one DPD No 1 tablet straight from the foil and crush the tablet using a clean stirring rod 6 Add water sample to the 10 ml mark 7 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key The result is shown in the displa...

Page 62: ...chamber 5 Add one CHLORINE HR KI tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Add one ACIDIFYING GP tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod 7 Close the vial tightly with the cap and swirl several times until the tablets are dissolved 8 Place the vial in the sample chamber making su...

Page 63: ...61 Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide 1 1 Methods Notes 1 Oxidizing agents interfere as they react in the same way as Chlorine ...

Page 64: ... the preheated reactor at a temperature of 150 C 5 CAUTION The vials are hot Remove the tubes from the heating block and allow them to cool to 60 C or less Mix the contents by carefully inverting each tube several times while still warm Then allow the tubes to cool to ambient temperature before measuring Note 2 6 Place the vial the blank Note 3 4 in the sample chamber making sure that the marks ar...

Page 65: ... for final measurements 3 Suspended solids in the vial lead to incorrect measurements For this reason it is important to place the vials carefully in the sample chamber The precipitate at the bottom of the sample should be not suspended 4 Clean the outside of the vials with a towel Finger prints or other marks will be removed 5 Samples can be measured when the Chloride content does not exceed 1000...

Page 66: ...n the preheated reactor at a temperature of 150 C 5 CAUTION The vials are hot Remove the tubes from the heating block and allow them to cool to 60 C or less Mix the contents by carefully inverting each tube several times while still warm Then allow the tubes to cool to ambient temperature before measuring Note 2 6 Place the vial the blank Note 3 4 in the sample chamber making sure that the marks a...

Page 67: ...vial lead to incorrect measurements For this reason it is important to place the vials carefully in the sample chamber The precipitate at the bottom of the sample should be not suspended 4 Clean the outside of the vials with a towel Finger prints or other marks will be removed 5 Samples can be measured when the Chloride content does not exceed 1000 mg l 6 In exceptional cases compounds contained i...

Page 68: ...minutes in the preheated reactor at a temperature of 150 C 5 CAUTION The vials are hot Remove the tubes from the heating block and allow them to cool to 60 C or less Mix the contents by carefully inverting each tube several times while still warm Then allow the tubes to cool to ambient temperature before measuring Note 2 6 Place the vial the blank Note 3 4 in the sample chamber making sure that th...

Page 69: ...urements For this reason it is important to place the vials carefully in the sample chamber The precipitate at the bottom of the sample should be not suspended 4 Clean the outside of the vials with a towel Finger prints or other marks will be removed 5 Samples can be measured when the Chloride content does not exceed 1000 mg l 6 In exceptional cases compounds contained in the water cannot be oxidi...

Page 70: ...ame filter Keep this filter for sample measurement 1 Fill a clean vial 24 mm Ø with 10 ml of the filtered deionized water from Step A close tightly with the cap 2 Place the vial in the sample chamber making sure that the marks are aligned 3 Press ZERO key 4 Remove the vial from the sample chamber and empty it completely 5 Rinse the vial with the filtered water sample and fill with 10 ml filtered w...

Page 71: ...s chloroplatinate ion 3 The estimated detection limit is 15 mg L Pt 4 Color may be expressed as apparent or true colour The apparent colour is defined as the colour of a solution due to dissolved substances and suspended particles in the sample This manual describes the determination of true colour by filtration of the water sample To determine the apparent colour non filtered deionized water and ...

Page 72: ...n the display for the differentiated determination of free combined and total Copper for the determination of free Copper for the determination of total Copper Select the desired determination with the arrow keys and Confirm with key Note 1 If is displayed at the diffentiated test result see page 242 Copper diff free total diff free total 5 0 1 ...

Page 73: ...rl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key 9 Remove the vial from the sample chamber 10 Add one COPPER No 2 tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod 11 Close the vial tightly with the cap and swirl several times until the tablet is dissolv...

Page 74: ...Press ZERO key 4 Remove the vial from the sample chamber 5 Add one COPPER No 1 tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key The result is shown in the display i...

Page 75: ...4 Remove the vial from the sample chamber 5 Add one COPPER No 1 tablet and one COPPER No 2 tablet straight from the foil to the water sample and crush the tablets using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablets are dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key The result is shown i...

Page 76: ...mple chamber 5 Add the contents of one Cu 1 F10 Powder Pack straight from the foil to the water sample 6 Close the vial tightly with the cap and swirl several times to mix the contents Note 3 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key Wait for a reaction period of 2 minutes After the reaction period is finished the measurement starts automaticall...

Page 77: ...ved powder 4 Interferences Cyanide CN Cyanide prevents full color development Add 0 2 ml Formaldehyde to 10 ml water sample and wait for a reaction time of 4 minutes Cyanide is masked After this perform test as described Multiply the result by 1 02 to correct the sample dilution by Formaldehyde Silver Ag If a turbidity remains and turns black silver interference is likely Add 10 drops of saturated...

Page 78: ...al times to mix the contents 6 Add two level spoons No 4 grey of Cyanide 12 replace the cap tightly and invert the vial several times to mix the contents 7 Fill the vial with drops of the same size by holding the bottle vertically and squeeze slowly 3 drops of Cyanide 13 8 Close the vial tightly with the cap and invert several times to mix the contents 9 Place the vial in the sample chamber making...

Page 79: ... Cyanides that can be destroyed by Chlorine are determined by this test 2 In the present of Thiocyanate heavy metal complexes colorants or aromatic amines the cyanide must be separated out by distillation before analysis is performed 3 Store the reagents in closed containers at a temperature of 15 C to 25 C ...

Page 80: ...igned 3 Press ZERO key 4 Remove the vial from the sample chamber 5 Add one CyA TEST tablet straight from the foil to the prepared water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved Note 2 3 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key The result is...

Page 81: ...gent CyA TEST The new reagent formulation does not require hazardous labeling in the European Union EU 5 A software update from our website www thermoscientific com water on the Resources tab of the AQ3700 meter page will update the calibration curve to the new method noted as CyA for Cyanuric Acid in the methods list and the results screen The results displayed will be the correct concentration o...

Page 82: ...y and squeeze slowly 6 drops 0 25ml of DEHA solution 6 Close the vial tightly with the cap and swirl several times to mix the contents 7 Add one DEHA tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod 8 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 9 Place the vial in the sample chamber making sure that...

Page 83: ...centrations Repeat the test procedure but without adding the DEHA solution If the displayed result is above 20 μg l subtract this value from the DEHA test result Substances which reduce Iron III interfere Substances which complex iron strongly may interfere also Substances which may interfere when present in concentrations at Borate as Na2 B4 O7 500 mg l Cobalt 0 025 mg l Copper 8 0 mg l Hardness ...

Page 84: ...with the caps and swirl several times to mix the contents 5 Add 0 20 ml DEHA 2 Rgt Solution to each vial Note 4 6 Close the vials tightly with the caps and swirl several times to mix the contents 7 Press key Wait for a reaction period of 10 minutes Note 5 After the reaction period is finished proceed as follows 8 Place the vial the blank in the sample chamber making sure that the marks are aligned...

Page 85: ...rences Iron II interferes at all concentrations Repeat the test procedure but without adding the DEHA Rgt 2 solution If the displayed result is above 20 μg l subtract this value from the DEHA test result Substances which reduce Iron III interfere Substances which complex iron strongly may interfere also Substances who may interfere when present in concentrations at Borate as Na2 B4 O7 500 mg l Cob...

Page 86: ...at the marks are aligned 3 Press ZERO key 4 Remove the vial from the sample chamber 5 Add exactly 2 ml SPADNS reagent solution Note 4 to the water sample Caution Vial is filled up to the top Note 8 6 Close the vial tightly with the cap and swirl several times to mix the contents 7 Place the vial in the sample chamber making sure that the marks are aligned Press TEST key The result is shown in the ...

Page 87: ...he water samples to be tested should have the same temperature 1 C 4 As the test result is highly dependent on exact sample and reagent volumes the sample and reagent volumes should always be metered by using a 10 ml or 2 ml respectively volumetric pipette class A 5 The accuracy of the test methods decreases above a level of 1 2 mg l Fluoride Although the results are sufficiently accurate for most...

Page 88: ...chamber making sure that the marks are aligned 5 Press ZERO key Wait for a reaction period of 2 minutes After the reaction period is finished the measurement starts automatically 6 Remove the vial from the sample chamber 7 Add 2 ml of the water sample to the prepared vial Caution Vial is filled up to the top Note 4 8 Close the vial tightly with the cap and swirl several times 5x to mix the content...

Page 89: ...xide respectively 2 The tolerance of the method is increasing with higher concentrations When diluting samples this should be take into account always measuring in the first third of the range 3 This method was developed from a volumetric procedure for the determination of calcium Due to undefined conditions the deviations from the standardized method may be greater 4 It is convenient to use speci...

Page 90: ...ablet using a clean stirring rod and dissolve the tablet completely 6 Add one CALCIO H No 2 tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod 7 Close the vial tightly with the cap and swirl several times until the tablet is completely dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key Wait fo...

Page 91: ...actly 10 ml of water sample must be taken for the test 4 This method was developed from a volumetric procedure for the determination of Calcium Hardness Due to undefined conditions the deviations from the standardised method my be greater 5 The tolerance of the method is increasing with higher concentrations When diluting samples this should be taken in account always measuring in the first third ...

Page 92: ... one HARDCHECK P tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key Wait for a reaction period of 5 minutes After the reaction period is finished the measurement star...

Page 93: ... acidic water samples must be adjusted between pH 4 and pH 10 before the tablet is added use 1 mol l Hydrochloric acid or 1mol l Sodium hydroxide respectively 2 Conversion table mg l CaCO3 dH fH eH 1 mg l CaCO3 0 056 0 10 0 07 1 dH 17 8 1 78 1 25 1 fH 10 0 0 56 0 70 1 eH 14 3 0 80 1 43 3 CaCO3 dH eH fH aH ...

Page 94: ...le chamber 5 Add one HARDCHECK P tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key Wait for a reaction period of 5 minutes After the reaction period is finished the ...

Page 95: ... acidic water samples must be adjusted between pH 4 and pH 10 before the tablet is added use 1 mol l Hydrochloric acid or 1mol l Sodium hydroxide respectively 2 Conversion table mg l CaCO3 dH fH eH 1 mg l CaCO3 0 056 0 10 0 07 1 dH 17 8 1 78 1 25 1 fH 10 0 0 56 0 70 1 eH 14 3 0 80 1 43 3 CaCO3 dH eH fH aH ...

Page 96: ...5 Add 1 g HYDRAZINE test powder Note 3 to the water sample 6 Close the vial tightly with the cap and swirl several times to mix the contents 7 Press key Wait for a reaction period of 10 minutes After the reaction period is finished proceed as follows 8 The slight turbidity that occurs when the reagent is added must be removed by filtration Note 4 9 Place the vial in the sample chamber making sure ...

Page 97: ... Qualitative folded filter papers for medium precipitates are recommended 5 In order to check whether the reagent has aged if it has been stored for a lengthy period perform the test as described above using tap water If the result is above the detection limit of 0 05 mg l you should only use the reagent with reservations as there may be a major deviation in results 6 There is an option to change ...

Page 98: ...making sure that the marks are aligned 5 Press ZERO key 6 Remove the vial from the sample chamber 7 Fill the second clean vial with 10 ml of the water sample this is the sample 8 Add 1 ml Hydra 2 Rgt Solution into the vial 9 Close the vial tightly with the cap and swirl several times to mix the contents 10 Place the vial the blank in the sample chamber making sure that the marks are aligned 11 Pre...

Page 99: ... test result increases by 20 Morpholine does not interfere up to 10 mg l Highly colored or turbid samples Mix 1 part deionized water with 1 part household bleach Add 1 drop of this mixture into 25 ml water sample and mix Use 10 ml prepared sample in place of deionized water in point 1 Note at point 7 use the unprepared water sample Principle Hydrazine is oxidized by household bleach Color interfer...

Page 100: ... tip by pressing the vial against the side of the sample container The ampoule breaks at the neck and the vial fills automatically A small volume of inert gas remains in the ampoule 6 Mix the contents of the ampoule by inverting it several times allowing the bubble to move from one end to the other Dry the outside of the vial 7 Place the ampoule in the sample chamber 8 Press TEST key Wait for a re...

Page 101: ...from Thermo Scientific Orion Auto Test ampoules 2 Read the original test instruction and the MSDS before performing the test MSDS is available at www thermoscientific com water 3 There is an option to change the unit from mg l to μg l The unit mg l is rounded e g 25 μg l 0 025 mg l display 0 03 mg l mg l µg l ...

Page 102: ... in the vial 5 Add one HYDROGEN PEROXIDE LR tablet straight from the foil and crush the tablet using a clean stirring rod 6 Add water sample to the 10 ml mark 7 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key Wait for a reaction period of 2 minutes After the reac...

Page 103: ...aking must be avoided The analysis must take place immediately after taking the sample 3 The DPD color development is carried out at a pH value of 6 2 to 6 5 The reagent tablet therefore contains a buffer for the pH adjustment Strong alkaline or acidic water samples must be adjusted between pH 6 and pH 7 before the tablet is added use 0 5 mol l Sulfuric acid or 1 mol l Sodium hydroxide respectivel...

Page 104: ...m the sample chamber empty the vial leaving a view drops in 5 Add one DPD No 1 tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Add water sample to the 10 ml mark 7 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key...

Page 105: ...103 Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide 1 1 Methods Notes 1 Oxidizing reagents such as Chlorine Bromine etc interfere as they react in the same way as Iodine ...

Page 106: ...3 mg l Fe Determination of all soluble iron and most insoluble forms of iron Iron total with Powder Pack 0 02 1 8 mg l Fe Determination of all soluble iron and most insoluble forms of iron most insoluble iron oxides are recovered by the reagent This information refers to analysis of the water sample without digestion Further information can be found in the method notes 2 0 2 2 2 2 2 3 2 ...

Page 107: ... ml and mix well 10 ml of this pre treated solution is used for the following analysis Perform as described by the selected test method 2 Water which has been treated with organic compounds like corrosion inhibitors must be oxidized where necessary to break down the iron Therefore add 1 ml concentrated sulfuric acid and 1 ml concentrated nitric acid to 100 ml water sample and boil to approx half v...

Page 108: ...Add one IRON LR tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key Wait for a reaction period of 5 minutes After the reaction period is finished the measurement start...

Page 109: ...1 This method determines the total dissolved Iron as Fe2 and Fe3 2 The IRON II LR tablet is used for differentiation as described above instead of the IRON LR tablet 3 For the determination of total dissolved and undissolved iron digestion is required An example is described on page 105 ...

Page 110: ...hamber 5 Add the contents of one Ferro F10 Powder Pack straight from the foil to the water sample 6 Close the vial tightly with the cap and swirl several times to mix the contents Note 4 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key Wait for a reaction period of 3 minutes Note 5 After the reaction period is finished the measurement starts automatica...

Page 111: ... sample 2 Iron oxide requires prior digestion use mild vigorous or acid digestion e g for digestion with acid see page 105 3 Very strong alkaline or acidic water samples must be adjusted to a pH value between 3 and 5 before analysis 4 Accuracy is not affected by undissolved powder 5 Water samples containing visible rust should be allowed to react for at least five minutes ...

Page 112: ...e foil into each vial 4 Close the vials tightly with the caps and swirl several times to mix the contents 5 Press key Wait for a reaction period of 3 minutes After the reaction period is finished proceed as follows 6 Place the vial the blank in the sample chamber making sure that the marks are aligned 7 Press ZERO key 8 Remove the vial from the sample chamber 9 Place the vial the sample in the sam...

Page 113: ...st be adjusted between pH 3 and pH 8 before the reagent is added use 0 5 mol l Sulfuric acid or 1 mol l Sodium hydroxide respectively 4 Interferences When interferences occur color development is inhibited or a precipitate is formed The values below refer to a standard with an iron concentration of 0 5 mg l The following substances do not interfere when present up to the levels given Substance no ...

Page 114: ...e tablet using a clean stirring rod and dissolve the tablet 6 Add one MANGANESE LR 2 tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod 7 Close the vial tightly with the cap and swirl several times until the tablets are dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key Wait for a reaction per...

Page 115: ...113 Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide 1 1 Methods Note 1 Mn MnO4 KMnO4 ...

Page 116: ... Cyanide reagent solution 6 Close the vials tightly with the caps and swirl several times to mix the contents 7 Fill each vial with drops of the same size by holding the bottle vertically and squeeze slowly 21 drops of PAN Indicator solution 8 Close the vials tightly with the caps and swirl several times to mix the contents 9 Press key Wait for a reaction period of 2 minutes Note 4 After the react...

Page 117: ...l CaCO3 hardness after adding the Ascorbic Acid powder pack add additionally 10 drops of Rochelle Salt Solution 3 After addition of the reagent solution Alkaline Cyanide a cloudy or turbid solution may form in some water samples The turbidity should disappear after point 7 4 Water samples containing more than 5 mg l iron should be allowed to react for at least 10 minutes 5 Conversion mg l MnO4 mg ...

Page 118: ...r sample 6 Close the vial tightly with the cap and swirl several times to mix the contents 7 Add the contents of one Sodium Periodate Powder Pack straight from the foil to the same water sample 8 Close the vial tightly with the cap and swirl several times to mix the contents 9 Place the vial in the sample chamber making sure that the marks are aligned 10 Press TEST key Wait for a reaction period o...

Page 119: ...xceed the buffering capacity of the reagents and requires sample pre treatment If samples were acidified for storing adjust the pH between 4 and 5 with 5 mol l 5 N Sodium hydroxide before test Do not exceed pH 5 as manganese may precipitate 3 Interferences Interfering substance Interference level Calcium greater than 700 mg l Chloride greater than 70 000 mg l Iron greater than 5 mg l Magnesium gre...

Page 120: ...DATE HR No 1 tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 7 Add one MOLYBDATE HR No 2 tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod 8 Dissolve the tablets using a clean stirring rod 9 Rinse out the vial with the prepared water sample and then fill to the 10 ml mark 10 Close the vial tightl...

Page 121: ...Notes 1 The tablets must be added in the correct sequence 2 Under test conditions pH 3 8 3 9 iron does not interfere nor do other metals at levels likely to be found in industrial water systems 3 Conversions mg l Mo mg l MoO4 x 0 6 mg l Na2 MoO6 mg l MoO4 x 1 3 4 MoO4 Mo Na2 MoO4 ...

Page 122: ...contents 7 Add the contents of one Molybdenum HR 2 F10 Powder Pack straight from the foil to the same water sample 8 Close the vial tightly with the cap and swirl several times to mix the contents 9 Add the contents of one Molybdenum HR 3 F10 Powder Pack straight from the foil to the same water sample 10 Close the vial tightly with the cap and swirl several times to mix the contents 11 Place the v...

Page 123: ...djusted to a pH of nearly 7 with 1 mol l Nitric acid or 1 mol l Sodium hydroxide 3 Concentrations above 10 mg l Cu causes too high test values if the reaction time of 5 minutes is increased So it is very important to perform the test procedure as described 4 Substances which may interfere when present in concentrations at Aluminium 50 mg l Chromium 1000 mg l Iron 50 mg l Nickel 50 mg l Nitrite all...

Page 124: ... 4 Close the vials tightly with the caps and invert gently several times 10 x to mix the contents Note 1 5 Press key Wait for a reaction period of 5 minutes 6 After the reaction period is finished proceed as follows 7 Place the vial the blank in the sample chamber making sure that the marks are l aligned 8 Press ZERO key 9 Remove the vial from the sample chamber 10 Place the vial the sample in the...

Page 125: ...123 Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide 1 1 Methods Notes 1 Some solids may not dissolve 2 Conversion mg l NO3 mg l N x 4 43 3 N NO3 ...

Page 126: ...e NITRITE LR tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key Wait for a reaction period of 10 minutes After the reaction period is finished the measurement starts ...

Page 127: ...recipitation Antimony III Iron III Lead Mercury I Silver Chloroplatinate Metavanadate and Bismuth Copper II ions may cause lower test results as they accelerate the decomposition of the Diazonium salt It is unlikely in practice that these interfering ions will occur in such high concentrations that they cause significant reading errors 2 Conversion mg l NO2 mg l N x 3 29 3 N NO2 ...

Page 128: ...mple chamber 5 Add the contents of one Nitri 3 Powder Pack straight from the foil to the water sample 6 Close the vial tightly with the cap and swirl several times to mix the contents 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key Wait for a reaction period of 20 minutes After the reaction period is finished the measurement starts automatically The r...

Page 129: ...results Antimonous Auric Bismuth Chloroplatinate Ferric Lead Mercurous Metavanadate Silver ions interfere by causing precipitation In samples with very high concentrations of Nitrate 100 mg L N a small amount of Nitrite will be found Such high levels of Nitrate appear to undergo a slight amount of reduction to Nitrite either spontaneously or during the reaction time of the test 2 N NO2 ...

Page 130: ...d add the contents of one TN Reagent A Powder Pack to each vial Note 2 8 Close the vials with the caps and shake to mix the contents at least 15 seconds 9 Press key Wait for a reaction period of 3 minutes After the reaction period is finished proceed as follows 10 Open the digestion vials and add the contents of one TN Reagent B Powder Pack to each vial Note 2 11 Close the vials with the caps and ...

Page 131: ...m the reactor after exactly 30 minutes 8 The reagent will not completely dissolve 9 Hold the vial in a vertical position with the cap pointing up Turn the vial upside down Wait for all of the solution to flow down to the cap Return the vial to the upright position Wait for all the solution to flow to the bottom of the vial This process is one inversion 10 inversions approx 30 seconds 10 After zero...

Page 132: ...dd the contents of one TN Reagent A Powder Pack to each vial Note 2 8 Close the vials with the caps and shake to mix the contents at least 15 seconds 9 Press key Wait for a reaction period of 3 minutes After the reaction period is finished proceed as follows 10 Open the digestion vials and add the contents of one TN Reagent B Powder Pack to each vial Note 2 11 Close the vials with the caps and sha...

Page 133: ...he reactor after exactly 30 minutes 8 The reagent will not completely dissolve 9 Hold the vial in a vertical position with the cap pointing up Turn the vial upside down Wait for all of the solution to flow down to the cap Return the vial to the upright position Wait for all the solution to flow to the bottom of the vial This process is one inversion 10 inversions approx 30 seconds 10 After zero ca...

Page 134: ...one DPD No 4 tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key Wait for a reaction period of 2 minutes After the reaction period is finished the measurement starts a...

Page 135: ...ethods Notes Active Oxygen is a synonym for a common disinfectant based on Oxygen in Swimming PoolTreatment 1 When preparing the sample the escape of Oxygen gases e g by pipetting or shaking must be avoided 2 The analysis must take place immediately after taking the sample ...

Page 136: ... ampoule into the lower edge of the sample container The ampoule breaks at the neck and the vial fills auto matically A small volume of inert gas remains in the ampoule 6 Remove the ampoule point downwards from the sample container immediately As the contents of the vial has a higher density than water it is important to remove the vial from the sample container within 5 seconds to prevent any los...

Page 137: ...ser Guide 1 1 Methods Notes 1 This method is adapted from the Thermo Scientific Orion Auto Test ampoules 2 Read the original test instruction and the MSDS delivered with the test before performing the test MSDS also available at www thermoscientific com water ...

Page 138: ... 0 02 1 mg l O3 The following selection is shown in the display for the determination of Ozone in the presence of Chlorine for the determination of Ozone in the absence of Chlorine Select the desired method with the arrow keys and Confirm with key Ozon with Cl without Cl with Cl without Cl 0 0 3 ...

Page 139: ...herefore contains a buffer for the pH adjustment Strong alkaline or acidic water samples must be adjusted between pH 6 and pH 7 before the tablet is added use 0 5 mol l Sulfuric acid resp 1 mol l Sodium hydroxide 4 Turbidity can lead to errors The use of the DPD No 1 tablet in samples with high Calcium ion content and or high conductivity can lead to turbidity of the sample and therefore incorrect...

Page 140: ... using a clean stirring rod 6 Add water sample to the 10 ml mark 7 Close the vial tightly with the cap and swirl several times until the tablets are dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key Wait for a reaction period of 2 minutes After the reaction period is finished the measurement starts automatically 10 Remove the vial from the sam...

Page 141: ...15 Transfer the contents of the second vial into the prepared vial 16 Close the vial tightly with the cap and swirl several times until the tablets are dissolved 17 Place the vial in the sample chamber making sure that the marks are aligned 18 Press TEST key Wait for a reaction period of 2 minutes After the reaction period is finished the measurement starts automatically The result is shown in the...

Page 142: ... 5 Add one DPD No 1 tablet and one DPD No 3 tablet straight from the foil and crush the tablets using a clean stirring rod 6 Add water sample to the 10 ml mark 7 Close the vial tightly with the cap and swirl several times until the tablets are dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key Wait for a reaction period of 2 minutes After the r...

Page 143: ...141 Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide ...

Page 144: ...gned 3 Press ZERO key 4 Remove the vial from the sample chamber 5 Add one PHMB METER tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key The result is shown in the dis...

Page 145: ...ase clean vials and stirring rods with a laboratory detergent see chapter 1 2 2 Cleaning of vials and accessories for analysis Rinse vials and caps thoroughly with tap water and then with deionized water 3 The test result is influenced by Hardness and Total Alkalinity The calibration of this method was done using water with the following concentration Ca Hardness 200 mg l CaCO3 Total Alkalinity 12...

Page 146: ...Test 0 06 5 mg l PO4 Determination of ortho Phosphate ions Phosphate 1 ortho with Ampoules 5 40 mg l PO4 Determination of ortho Phosphate ions Phosphate 2 ortho with Ampoules 0 05 5 mg l PO4 Determination of ortho Phosphate ions Phosphate acid hydrolyzable with DigestionTubeTest 0 02 1 6 mg l P Determination of ortho Phosphate ions condensed inorganic Phosphates Phosphate total with DigestionTubeT...

Page 147: ...lysable In methods 321 and 327 the ortho Phosphate ions react with the Vanadate molybdate reagent under acid conditions to form a yellow colored product Notes only for tube tests and tests with powder packs 323 324 325 326 1 Application for water wastewater and seawater 2 Highly buffered samples or samples with extreme pH values should be adjusted between pH 2 and pH 10 before analysis with 1 mol ...

Page 148: ...and crush the tablet using a clean stirring rod 6 Add one PHOSPHATE No 2 LR tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod 7 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key Wait for a reaction period of 10 m...

Page 149: ...added in the correct sequence 3 The test sample should have a pH Value between 6 and 7 4 Interferences Higher concentrations of Cu Ni Cr III V V and W VI interfere due to their color Silicates do not interfere masked by Citric acid in the tablets 5 see also page 137 6 Conversion mg l P mg l PO4 x 0 33 mg l P2 O5 mg l PO4 x 0 75 7 PO4 P P2 O5 ...

Page 150: ... and crush the tablet using a clean stirring rod 6 Add one PHOSPHATE HR P2 tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod 7 Close the vial tightly with the cap and swirl several times until the tablets are dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 Press TEST key Wait for a reaction period of 10 ...

Page 151: ... Methods Notes 1 For samples under 5 mg l PO4 it is reccommended to analyze the water sample with method 320 Phosphate LR ortho with Tablet 2 Only ortho Phosphate ions react 3 see also page 137 4 Conversions mg l P mg l PO4 x 0 33 mg l P2 O5 mg l PO4 x 0 75 5 PO4 P P2 O5 ...

Page 152: ...Add the contents of Phosphate Rgt F10 Powder Pack straight from the foil to the water sample 6 Close the vial tightly with the cap and swirl several times to mix the contents approx 10 15 sec Note 1 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key Wait for a reaction period of 2 minutes After the reaction period is finished the measurement starts autom...

Page 153: ...cientific Orion AQUAfast AQ3700 Colorimeter User Guide 1 1 Methods Notes 1 The reagent does not dissolve completely 2 see also page 137 3 Conversions mg l P mg l PO4 x 0 33 mg l P2 O5 mg l PO4 x 0 75 4 PO4 P P2 O5 ...

Page 154: ...amber 5 Add the contents of one Phosphate Rgt F10 Powder Pack straight from the foil to the water sample Note 1 6 Close the vial tightly with the cap and swirl several times to mix the contents approx 10 15 sec Note 2 7 Place the vial in the sample chamber making sure that the l marks are aligned 8 Press TEST key Wait for a reaction period of 2 minutes After the reaction period is finished the mea...

Page 155: ...QUAfast AQ3700 Colorimeter User Guide 1 1 Methods Notes 1 Use a funnel to add the reagent 2 The reagent does not dissolve completely 3 see also page 137 4 Conversions mg l P mg l PO4 x 0 33 mg l P2 O5 mg l PO4 x 0 75 5 PO4 P P2 O5 ...

Page 156: ...sing the vial against the side of the sample container The ampoule breaks at the neck and the vial fills automatically A small volume of inert gas remains in the ampoule 6 Mix the contents of the ampoule by inverting it several times allowing the bubble to move from one end to the other Dry the outside of the vial 7 Place the ampoule in the sample chamber 8 Press TEST key Wait for a reaction perio...

Page 157: ...from Thermo Scientific Orion Auto Test ampoules 2 Read the original test instruction and the MSDS delivered with the test before performing the test MSDS also available at www thermoscientific com water 3 Only ortho Phosphate ions react 4 Sulfide Thiosulfate and Thiocyanate cause low test results 5 PO4 P P2 O5 ...

Page 158: ...ap tightly and swirl several times to mix the contents 7 Place one ampoule in the sample container Snap the tip by pressing the vial against the side of the sample container The ampoule breaks at the neck and the vial fills automatically A small volume of inert gas remains in the ampoule 8 Mix the contents of the ampoule by inverting it several times allowing the bubble to move from one end to the...

Page 159: ...from Thermo Scientific Orion Auto Test ampoules 2 Read the original test instruction and the MSDS delivered with the test before performing the test MSDS also available at www thermoscientific com water 3 Only ortho Phosphate ions react 4 Sulfide Thiosulfate and Thiocyanate cause low test results 5 PO4 P P2 O5 ...

Page 160: ...dium Hydroxide solution to the vial 6 Close the vial with the cap and invert gently several times to mix the contents 7 Place the vial in the sample chamber making sure that the l marks are aligned 8 Press ZERO key 9 Remove the vial from the sample chamber 10 Add the contents of one Phosphate Rgt F10 Powder Pack straight from the foil to the vial Note 2 11 Close the vial tightly with the cap and s...

Page 161: ... Notes 1 Appropriate safety precautions and a good lab technique should be used during the whole procedure 2 Use a funnel to add the reagent 3 The reagent does not dissolve completely 4 see also page 137 5 Conversions mg l PO4 mg l P x 3 07 mg l P2 O5 mg l P x 2 29 6 PO4 P P2 O5 ...

Page 162: ...n the cooled digestion vial and add 2 ml 1 54 N Sodium Hydroxide Solution to the vial 7 Close the vial with the cap and invert gently several times to mix the contents 8 Place the vial in the sample chamber making sure that the l marks are aligned 9 Press ZERO key 10 Remove the vial from the sample chamber 11 Add the contents of one Phosphate Rgt F10 Powder Pack straight from the foil to the vial ...

Page 163: ... Notes 1 Appropriate safety precautions and a good lab technique should be used during the whole procedure 2 Use a funnel to add the reagent 3 The reagent does not dissolve completely 4 see also page 137 5 Conversions mg l PO4 mg l P x 3 07 mg l P2 O5 mg l P x 2 29 6 P PO4 P2 O5 ...

Page 164: ...ts of one Potassium Persulfate F10 Powder Pack straight from the foil to the digestion vial 6 Close the digestion vial tightly with the cap and swirl until the reagent is dissolved 7 Insert the UV lamp into the digestion vial Note 3 4 5 CAUTION Wear UV safety goggles 8 Switch the UV lamp on and wait for a reaction period of 10 minutes 9 After the reaction period is finished switch the UV lamp off ...

Page 165: ... appropriate factor from table 2 Notes 1 Rinse all glassware with 1 1 Hydrochloric acid first and then reinse with deionized water 2 During UV digestion Phosphonates are convertd to Ortho Phosphates This step is normally completed in 10 minutes High organic loaded samples or a weak lamp can cause incomplet phosphate conversion 3 UV lamp must be purchased separately 4 While the UV lamp is on UV saf...

Page 166: ... Table 1 Expected range mg L Phosphonate Sample volume in ml Factor 0 2 5 50 0 1 0 5 0 25 0 2 0 12 5 10 0 5 0 25 5 1 0 0 125 1 5 0 Table 2 Phosphonate type Conversion factor for active phosphonate PBTC 2 840 NTP 1 050 HEDPA 1 085 EDTMPA 1 148 HMDTMPA 1 295 DETPMPA 1 207 HPA 1 490 ...

Page 167: ...opper 100 mg l Cyanide 100 mg l increase the UV digestion to 30 minutes Diethanoldithiocarbamate 50 mg l EDTA 100 mg l Iron 200 mg l Nitrate 200 mg l NTA 250 mg l Orthophosphate 15 mg l Phosphite and organophosphorus compounds reacts quantitatively Meta and Polyphosphates do not interfere Silica 500 mg l Silicate 100 mg l Sulfate 2000 mg l Sulfide interferes at all concentrations Sulfite 100 mg l ...

Page 168: ... ZERO key 4 Remove the vial from the sample chamber 5 Add one BROMOCRESOLPURPLE METER tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key The result is shown in the di...

Page 169: ...easuring range A plausibility test pH meter is recommended 3 The accuracy of the colorimetric determination of pH values depends on various boundary conditions buffer capacity of the sample salt contents etc 4 Salt error Correction of test results average values for samples with salt contents of Indicator Salt content Bromcresolpurple 1 molar 0 26 2 molar 0 33 3 molar 0 31 The values of Parson and...

Page 170: ...ss ZERO key 4 Remove the vial from the sample chamber 5 Add one PHENOL RED METER tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key The result is shown in the display...

Page 171: ... and above 8 4 can produce results inside the measuring range A plausibility test pH meter is recommended 4 The accuracy of the colorimetric determination of pH values depends on various boundary conditions buffer capacity of the sample salt contents etc 5 Salt error Correction of test results average values for samples with salt contents of Indicator Salt content Phenol red 1 molar 0 21 2 molar 0...

Page 172: ...ed 3 Press ZERO key 4 Remove the vial from the sample chamber 5 Fill the vial with drops of the same size by holding the bottle vertically and squeeze slowly 6 drops of PHENOL RED solution 6 Close the vial tightly with the cap and swirl several times to mix the contents 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key The result is shown in the display...

Page 173: ...y adding a small crystal of Sodiumthiosulfate Na2 S2 O3 5 H2 O to the sample before adding the PHENOL RED solution PHENOL RED tablets already contain Thiosulfate 2 Due to differing drop sizes results can show a discrepancy in accuracy by comparison with tablets This can be minimised by using a pipette 0 18 ml PHENOLRED solution is equivalent to 6 drops 3 After use replace the bottle cap securely 4...

Page 174: ...ess ZERO key 4 Remove the vial from the sample chamber 5 Add one THYMOLBLUE METER tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key The result is shown in the displa...

Page 175: ...asuring range A plausibility test pH meter is recommended 3 The accuracy of the colorimetric determination of pH values depends on various boundary conditions buffer capacity of the sample salt contents etc 4 Salt error Correction of test results average values for samples with salt contents of Indicator Salt content Thymolblue 1 molar 0 22 2 molar 0 29 3 molar 0 34 The values of Parson and Dougla...

Page 176: ...Press ZERO key 4 Remove the vial from the sample chamber 5 Add one PotassiumT tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key The result is shown in the display in...

Page 177: ...175 Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide 1 1 Methods Notes 1 If Potassium is present a cloudy solution will appear Single particles are not necessarily caused by Potassium ...

Page 178: ... reaction period of 5 minutes After the reaction period is finished proceed as follows 8 Add one SILICA PR tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod 9 Add one SILICA No 2 tablet straight from the foil to the same water sample and crush the tablet using a clean stirring rod 10 Close the cap tightly and swirl several times until the tablet...

Page 179: ...Methods Notes 1 The tablets must be added in the correct sequence 2 Phosphate ions do not interfere under the given reaction conditions 3 If Phosphate is known to be absent the addition of the SILICA PR tablet may be omitted 4 Conversion mg l Si mg l SiO2 x 0 47 5 SiO2 Si ...

Page 180: ...the reaction period is finished proceed as follows 5 Add the contents of one Silica CitricAcid F10 Powder Pack straight from the foil into each vial 6 Close the vials tightly with the caps and swirl several times to mix the contents 7 Press key Wait for a reaction period of 1 minute Note 3 After the reaction period is finished proceed as follows 8 Place the vial the blank in the sample chamber mak...

Page 181: ...eaction time of 8 minutes are required 3 The given reaction time of 1 minute refers to a water sample temperature of 20 C At 30 C a reaction time of 30 seconds at 10 C a reaction time of 2 minutes are required 4 Interferences Substance Interference Iron large amounts interfere Phosphate does not interfere at concentrations less than 50 mg l PO4 at 60 mg l PO4 the interference is approx 2 at 75 mg ...

Page 182: ...ck straight from the foil to the same water sample Note 2 8 Close the vial tightly with the cap and swirl several times to mix the contents 9 Press key Wait for a reaction period of 10 minutes After the reaction period is finished proceed as follows 10 Add the contents of one Silica Citric Acid F10 Powder Pack straight from the foil to the water sample Note 3 11 Close the vial tightly with the cap...

Page 183: ... at concentrations less than 50 mg l PO4 at 60 mg l PO4 the interference is approx 2 at 75 mg l PO4 the interference is approx 11 Sulfide interferes at all levels Occasionally water samples contain forms of silica which reacts very slowly with Molybdate The nature of these forms is not known A pre treatment with Sodium hydrogencarbonate and then with Sulfuric Acid will make these forms reactive to...

Page 184: ...solution slowly into a 100 ml beaker and dilute to the 100 ml mark with chlorine free water Mix thoroughly Performing test procedure 1 Fill a clean vial 24 mm Ø with 10 ml of the prepared water sample close tightly with the cap 2 Place the vial in the sample chamber making sure that the marks are aligned 3 Press ZERO key 4 Remove the vial from the sample chamber 5 Add one CHLORINE HR KI tablet str...

Page 185: ...ling sodium hypochlorite The material has a very strong alkalinity and can cause corrosion Contact with eyes skin and clothes etc has to be avoided Refer to the detailed information the producer supplied with the product 2 The tablets must be added in the correct sequence 3 This method provides a fast and simple test The test can be performed on site but the result will not be as precise as a labo...

Page 186: ... Press ZERO key 4 Remove the vial from the sample chamber 5 Add one SULFATE T tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key The result is shown in the display in...

Page 187: ...185 Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide 1 1 Methods Notes 1 If Sulfate is present a cloudy solution will appear ...

Page 188: ... chamber 5 Add the contents of one Sulpha 4 F10 Powder Pack straight from the foil to the water sample 6 Close the vial tightly with the cap and swirl several times to mix the contents 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key Wait for a reaction period of 5 minutes After the reaction period is finished the measurement starts automatically The r...

Page 189: ...187 Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide 1 1 Methods Note 1 If Sulfate ions are present a cloudy solution will appear ...

Page 190: ...e tablet using a clean stirring rod and dis solve the tablet 6 Add one SULFIDE No 2 tablet to the same water sample and crush the tablet using a clean stirring rod 7 Close the vial tightly with the cap and swirl several times until the tablets are dissolved 8 Place the vial in the sample chamber making sure that the marks are aligned 9 PressTEST key Wait for a reaction period of 10 minutes After t...

Page 191: ...r oxidizing agents which react with DPD do not interfere with the test 3 To avoid loss of Sulfide collect the sample carefully with a minimum of aeration It is essential to test the sample immediately after collection 4 The sample temperature should be 20 C A different temperature can lead to higher or lower results 5 Conversion H2 S mg l S x 1 06 6 S H2 S ...

Page 192: ...ne SULFITE LR tablet straight from the foil to the water sample and crush the tablet using a clean stirring rod 6 Close the vial tightly with the cap and swirl several times until the tablet is dissolved 7 Place the vial in the sample chamber making sure that the marks are aligned 8 Press TEST key Wait for a reaction period of 5 minutes After the reaction period is finished the measurement starts ...

Page 193: ...191 Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide 1 1 Methods Notes 1 SO3 Na2 SO3 ...

Page 194: ...ace the vial in the sample chamber making sure that the marks are aligned 3 Press ZERO key 4 Remove the vial from the sample chamber and empty the vial completely 5 Stir the blended water sample Immediately rinse the vial with the water sample and fill with 10 ml water sample 6 Place the vial in the sample chamber making sure that the marks are aligned 7 PressTEST key The result is shown in the di...

Page 195: ...uired perform a gravimetric determination of a water sample The result can be used to calibrate the colorimeter with the same water sample 3 The estimated detection limit is 20 mg L TSS 4 Collect water samples in clean plastic or glass bottles and analyse the water sample as soon as possible It is possible to store the sample at 4 C for 7 days Before measurement warm up the sample to the temperatu...

Page 196: ...3 Press ZERO key 4 Remove the vial from the sample chamber and empty the vial completely 5 Stir the water sample Immediately rinse the vial with the water sample and fill with 10 ml water sample 6 Close the vial tightly with the cap and swirl gently several times 7 Place the vial in the sample chamber making sure that the marks are aligned 8 PressTEST key The result is shown in the display in FAU ...

Page 197: ...s 20 FAU 3 Collect water samples in clean plastic or glass bottles and analyse the water sample as soon as possible It is possible to store the sample at 4 C for 48 hours Before measurement warm up the sample to the temperature at collection time Temperature differences between measurement and sample collection can effect the turbidity of the sample 4 Color interferes if light is absorbed at 530 n...

Page 198: ...e vial tightly with the cap and swirl several times to mix the contents 7 Add 1 drop of Urea Reagent 2 Urease to the same water sample Note 8 8 Close the vial tightly with the cap and swirl several times to mix the contents 9 Press key Wait for a reaction period of 5 minutes After the reaction period is finished proceed as follows 10 Add one AMMONIA No 1 tablet straight from the foil to the prepar...

Page 199: ...blets must be added in the correct sequence 4 Do not store reagent 1 below 10 C granulation is possible Store reagent 2 Urease in the refrigerator at a temperature of 4 C to 8 C 5 The AMMONIA No 1 tablet will only dissolve completely after the AMMONIA No 2 tablet has been added 6 Ammonia and chloramines are also measured during urea measurement 7 Before analysing seawater samples a measuring spoon...

Page 200: ... that the marks are aligned 5 Press ZERO key Wait for a reaction period of 5 minutes After the reaction period is finished the measurement starts automatically 6 Remove the vial from the sample chamber 7 Add one EDTA tablet straight from the foil to the prepared vial and crush the tablet using a clean stirring rod 8 Close the vial tightly with the cap and swirl several times until the tablet is di...

Page 201: ...orrect sequence 2 In the case of high levels of residual chlorine perform the analysis with a dechlorinated water sample To dechlorinate add one DECHLOR tablet to the water sample point 1 Crush and mix to dissolve the tablet Then add the COPPER ZINC LR tablet point 2 and continue with the test procedure as described above ...

Page 202: ...ter sample straight from the foil without touching them with the fingers Liquid reagents Add drops of the same size to the water sample by holding the bottle vertically and squeezing slowly After use replace the bottle caps securely noting the color coding Note recommendation for storage e g cool and dry Powder Packs Ampoules Ampoules should be stored in the dark and at room temperature For furthe...

Page 203: ...ed water 1 2 3 Guidelines for photometric measurements 1 Vials caps and stirring rods should be cleaned thoroughly after each analysis to prevent interferences Even minor reagent residues can cause errors in the test result 2 The outside of the vial must be clean and dry before starting the analysis Clean the outside of the vials with a towel Fingerprints or other marks will be removed 3 If there ...

Page 204: ...ment housing it can destroy electronic components and cause corrosion 9 Contamination of the lens in the sample chamber can result in errors Check at regular intervals and if necessary clean the light entry surfaces of the sample chamber using a moist cloth or cotton buds 10 Large temperature differences between the instrument and the environment can lead to errors e g due to the formation of cond...

Page 205: ...ribed in the test methods Caution 1 Dilution decreases accuracy 2 Do not dilute water samples for measurement of pH values This will lead to incorrect test results If Overrange is displayed use another instrument e g pH meter 1 2 5 Correcting for volume additions If a larger volume of acid or base is used to pre adjust the pH value a volume correction of the displayed result is necessary Example F...

Page 206: ...204 Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide ...

Page 207: ...205 Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide Part 2 Instrument Manual ...

Page 208: ...for 2 minutes If the change time exceeds 2 minutes all stored data and settings are lost Recommendation for replacement a screwdriver and new batteries must be available 2 1 3 Replacement of batteries See chapter 2 1 2 Saving data important notes before replacing batteries 1 Switch the instrument off 2 If necessary remove vial from the sample chamber 3 Place the instrument upside down on a clean a...

Page 209: ...in position battery compartment cover B must be fixed with the four screws 2 1 4 Instrument explosion drawing A screws B battery compartment cover C notch D batteries 4 batteries AA LR6 E seal ring F instrument back D batteries E seal ring C notch F instrument back B battery compartment cover A screws A A L R 6 A A L R 6 A A L R 6 A A L R 6 ...

Page 210: ...208 Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide ...

Page 211: ... selection of methods or previous menu Function key description in the text if key available Function key description in the text if key available Function key description in the text if key available Confirming Menu of meter settings and further functions Moving the cursor up or down Storing of displayed test result Performing Zero Performing Test Displaying date and time user countdown Decimal p...

Page 212: ...ck key The display shows time and date Press clock key The display shows Either press key to accept the last used user count down or press any number key to start entering a new value The entry comprises two digits each Enter minutes and seconds e g 2 minutes 0 seconds Shift 0 2 0 0 Confirm with key The display shows Start countdown with key After countdown has finished the meter reverts to the pr...

Page 213: ...ive 2 3 2 Selecting a method The display shows a selection There are two possibilities to select the required method a enter method number directly e g Shift 8 0 to select Bromine b press arrow key or to select the required method from the displayed list Confirm with key 2 3 2 1 Method Information F1 Use F1 key to switch between the compact and the detailed list for method selection Example Line 1...

Page 214: ...ferentiation is possible in some methods e g Chlorine The meter then requires the type of determination Press arrow key or to select the required determi nation Confirm with key 2 3 4 Performing Zero The display shows Prepare a clean vial as described in Method and place the vial in the sample chamber making sure that the marks are aligned Press ZERO key The display shows prepare Zero press ZERO Z...

Page 215: ... sample start countdown with key and proceed as described in the mode description The vial must not be placed in the sample chamber Press TEST key Prepare the water sample as described in the method description and place the vial in the sample chamber The display shows the countdown by pressing the TEST key and the countdown is started automatically After the reaction period is finished the measur...

Page 216: ...ument and will be displayed if this method is used the next time If there is the possibility to change the chemical species for a method it is described in the manual The arrows indicate the possible chemical species and are printed below the notes of the method PO4 P P2 O5 2 3 8 Storing results Press STORE key while the test result is displayed The display shows We advise you to enter a numeric c...

Page 217: ...The entire data set is printed with date time Code No method and test result Printing example 100 ChlorineT 0 02 6 mg l Cl2 Profi Mode no 2006 07 01 14 53 09 Test No 1 Code Nr 007 4 80 mg l Cl2 The test No is an internal number that is set automatically if a test result is stored It appears only on the print out 2 3 10 Perform additional measurements To perform additional tests using the same meth...

Page 218: ...20 mAbs 560 nm 930 mAbs 580 nm 940 mAbs 610 nm 950 mAbs 660 nm Select the desired wavelength from the method list or by entering the corresponding method number directly The display shows e g Always carry out zeroing using a filled e g deionized water vial The display shows Carry out measurement of the sample The display shows e g TIP To ensure complete reaction times the user countdown may be hel...

Page 219: ...ching on all methods 223 M list all off 62 User method list switching off all methods 223 Print 20 Printing all stored results 206 Print code no 22 Print only results of a selected Code No range 208 Print date 21 Print only results of a selected time period 207 Print method 23 Print only results of one selected method 209 Printing parameters 29 Setting of printing options 210 Profi Mode 50 Switchi...

Page 220: ... concentration 64 Entering the data necessary to run a user concentration method 224 User polynoms 65 Entering the data necessary to run a user polynomial 226 User methods clear 66 Delete all data of a user polynomial or of a concentration method 229 User methods print 67 Print out all data stored with mode 64 concentration or mode 65 polynomial 230 User methods init 69 Initialise the user method ...

Page 221: ... seconds of the countdown even if the key beep is switched off Setting date and time Press MODE Shift 1 2 keys Confirm with key The display shows The entry comprises two digits each Enter year month and day e g 14 May 2006 Shift 0 6 0 5 1 4 Enter hours and minutes e g 3 07 p m Shift 1 5 0 7 Confirm with key Note While confirming date and time with key the seconds are adjusted to zero automatically...

Page 222: ...th key The display shows Press Shift 0 key to switch the countdown off Press Shift 1 key to switch the countdown on Confirm with key Notes 1 It is possible to interrupt the working countdown by pressing the key application e g serial analysis The user countdown is also available if the countdown is switched off 2 If the countdown function is switched off the operator is responsible for ensuring th...

Page 223: ... a short beep Press MODE Shift 1 4 keys Confirm with key The display shows Press Shift 0 key to switch the signal beep off Press Shift 1 key to switch the signal beep on Confirm with key Note In the case of methods with reaction periods an acoustic signal still sounds during the last 10 seconds of the countdown even if the key beep is switched off Signal Beep ON 1 OFF 0 0 Mode 4 1 1 ...

Page 224: ...0 keys Confirm with key The display shows Press key for printing out all stored test results The display shows e g After printing the meter goes back to Mode Menu automatically Note It is possible to cancel the entry by ESC All stored data are printed out See chapter 2 5 1 Data Printing Print Print all Data Start cancel ESC Test No Mode 0 2 ...

Page 225: ... month and day for the last day of the required period e g 19 May 2006 Shift 0 6 0 5 1 9 Confirm with key The display shows Press key and all stored results in the selected date range are printed After printing the meter goes back to mode menu auto matically Note It is possible to cancel the entry by ESC If you want to print only results of one day enter the same date twice to determine the period...

Page 226: ...for the last required Code No e g Shift 1 0 Confirm with key The display shows Press key and all stored results in the selected code number range are printed After printing the meter goes back to mode menu auto matically Note It is possible to cancel the entry by ESC If you want to print only results of one code number enter the same code number twice If you want to print all results without code ...

Page 227: ...od number directly Confirm with key In case of differentiated methods select the required kind of determination and confirm with key The display shows Press key and all stored results of the selected method are printed After printing the meter goes back to mode menu auto matically Note It is possible to cancel the entry by ESC Print 20 Acid demand 30 Alkalinity tot 40 AluminiumT Print method 30 Al...

Page 228: ...play shows Press arrow key or to select the required Protocol Xon Xoff no control Confirm with key Finish with ESC key Flow Control will be set to the selection displayed at is Press Shift 2 key to select Baud rate The display shows printing parameter 1 Flow control 2 Baud rate cancel ESC Flow Control is Xon Xoff select save cancel ESC Baud rate is 19200 select save cancel ESC 2 Mode 9 2 1 Esc ...

Page 229: ...t 3 0 keys Confirm with key The display shows The stored data sets are displayed in chronological order starting with the latest stored test result Press key and all stored results are displayed Press F3 key to print the displayed result Press F2 key to print all results End with ESC Press arrow key to display the following test result Press arrow key to display the previous test result If there a...

Page 230: ... of the required period e g 19 May 2006 Shift 0 6 0 5 1 9 Confirm with key The display shows Press key and all stored results in the selected date range are displayed Press F3 key to print the displayed result Press F2 key to print all selected results End with ESC Note It is possible to cancel the entry by ESC If you want to recall only results of one day enter the same date twice to determine th...

Page 231: ... g Shift 1 0 Confirm with key The display shows Press key and all stored results in the selected Code No range are displayed Press F3 key to print the displayed result Press F2 key to print all selected results End with ESC Note It is possible to cancel the entry by ESC If you want to recall only results of one code number enter the same code number twice If you want to recall all results without ...

Page 232: ...directly Confirm with key In case of differentiated methods select the required kind of determination and confirm with key The display shows Press key and all stored results of the selected method are displayed Press F3 key to print the displayed result Press F2 key to print all selected results End with ESC Storage 20 Acid demand 30 Alkalinity tot 40 AluminiumT Storage method 30 Alkalinity tot St...

Page 233: ...r cancel without deleting data by pressing ESC key Note All stored test results are deleted 2 4 5 Calibration Fluoride Calibration Caution See notes Press MODE Shift 4 0 keys Confirm with key The display shows 1 Fill a clean vial 24 mm Ø with exactly 10 ml of deionised water close tightly with the cap 2 Place the vial in the sample chamber making sure that the marks are aligned Delete data Delete ...

Page 234: ...d Caution Vial is filled up to the top 11 Place the vial in the sample chamber making sure that the marks are aligned 12 Press TEST key The display shows Confirm with key Back to method selection with ESC key Select Fluoride method with keys Shift 1 7 0 Note The same batch of SPADNS reagent solution must be used for adjustment and test The adjustment process needs to be performed for each new batc...

Page 235: ...actory calibration If the user calibration is deleted the factory calibration is automatically activated Remarks The Fluoride method cannot be calibrated with mode 45 since the test requires a calibration related to the batch of the liquid reagent SPADNS mode 40 chapter calibration fluoride Table No Method Recommended range for user calibration 20 Acid demand 1 3 mmol l 35 Alkalinity p 100 300 mg ...

Page 236: ...Manganese HR PP 4 6 mg l Mn 250 Molybdate T 5 15 mg l Mo 252 Molybdate HR PP 10 30 mg l Mo 265 Nitrate TT 10 mg l N 270 Nitrite T 0 2 0 3 mg l N 272 Nitrite LR PP 0 1 0 2 mg l N 280 Nitrogen total LR 10 mg l N 281 Nitrogen total HR 50 100 mg l N 300 Ozone DPD Calibration with basic test 100 Chlorine free 290 Oxygen active Calibration with basic test 100 Chlorine free 292 Oxygen dissolved possible ...

Page 237: ...irm with key to store the new calibration factor Cancel user calibration by pressing ESC key The display shows Now the method name is displayed inverse and the test result is calculated with the new calibration factor 100 ChlorineT 0 02 6 mg l Cl2 0 90 mg l free Cl2 user calibration 100 ChlorineT 0 02 6 mg l Cl2 0 90 mg l free Cl2 up down save Jus Factor saved 100 ChlorineT 0 02 6 mg l Cl2 1 00 mg...

Page 238: ...ad of zeroing the instrument press MODE Shift 4 6 keys and confirm with key The display shows Press Shift 1 key to delete user calibration Press Shift 0 key to keep the valid user calibration The instrument goes back to Zero query automatically user calibration 100 ChlorineT 0 02 6 mg l Cl2 clear user calibration YES 1 NO 0 100 ChlorineT 0 02 6 mg l Cl2 prepare ZERO press ZERO Mode 6 4 1 0 ...

Page 239: ...tive the meter provides only a minimum of operator instructions The criteria specified above in d e f are no longer included Press MODE Shift 5 0 keys in succession Confirm with key The display shows Press Shift 0 key to switch the Profi Mode off Press Shift 1 key to switch the Profi Mode on The display shows Confirm with key Note Storage of test results is possible When results are stored the dis...

Page 240: ... complete method list is displayed Methods with a point behind the method number will be displayed in the method selection list Methods without a point will not be displayed in the method selection list Press key or to select the required method from the displayed list Switch with F2 key between active and inactive Select next method activate or inactivate it and continue Confirm with key Cancel w...

Page 241: ...lection list The instrument goes back to mode menu automatically User method list switch all methods off The program structure requires that the method list must have at least one active switched on method For this reason the instrument activates one method automatically Press MODE Shift 6 2 keys Confirm with key The display shows Press Shift 1 key to display only one method in the method selectio...

Page 242: ...nge The operation range should be within this range to achieve best results 1000 mAbs 1 Abs 1 E displayed Entering a User Concentration Press MODE Shift 6 4 keys Confirm with key Entry Procedure The display shows Enter a method number in the range from 850 to 859 e g Shift 8 5 0 Confirm with key Note if the entered number has already been used to save a concentration the display shows the query Pr...

Page 243: ...isplay shows Enter the concentration of the first standard e g Shift 0 0 5 One step back with ESC Press F1 key to reset numerical input Confirm with key The display shows Prepare the first standard and press Test key The display shows the input value and the measured absorption value Confirm with key Enter the concentration of the second standard e g Shift 0 1 One step back with ESC Press F1 key t...

Page 244: ... and press Test key The display shows the input value and the measured absorption value Confirm with key Note Perform as described above to measure further standards The minimum of measured standards is 2 The maximum of measured standards is 14 S1 to S14 If all required standards or the maximum value of 14 standards are measured press Store key The display shows The instrument goes back to the mod...

Page 245: ... sign Enter the exponent of the coefficient A e g Shift 3 Confirm with key Successively the instrument queries the data for the other coefficients B C D E and F Note If zero 0 is entered for the value of the coefficient the input of the exponent is omitted automatically Confirm every input with key Enter measurement ranges from 2600 to 2600 mAbs Press or key to change between plus and minus sign E...

Page 246: ...0 1 1000 9999 1 The display shows The instrument goes back to the mode menu automati cally Now the polynomial is stored in the instrument and can be recalled by entering its method number or selecting it from the displayed method list TIP Save all your polynomial data in a written form because in case of power outage e g changing the battery all polynomial data will be lost and must be entered aga...

Page 247: ...method selection list Press MODE Shift 6 6 keys Confirm with key The display shows Enter the number of the User Method you want to delete in the range from 800 to 824 or 850 to 859 e g Shift 8 0 0 Confirm with key The query is displayed Press Shift 1 key to delete the selected User Method Press Shift 0 key to keep the valid User Method The instrument goes back to mode menu automatically User m cle...

Page 248: ...stored user polynomials and concentration methods can be printed out or transferred with HyperTerminal to a PC Press MODE Shift 6 7 keys Confirm with key The display shows Press key to print out the data e g wavelength unit of all stored User Methods The display shows e g After data transfer the meter goes back to mode menu automatically M800 M803 User m print Start Mode 7 6 ...

Page 249: ...n to set it to a predefined state ATTENTION All stored user methods polynomial concentration are deleted with initialisation Press MODE Shift 6 9 keys Confirm with key The display shows Confirm with key The query is displayed Press Shift 1 key to start initialisation Press Shift 0 key to to cancel without initialisation The instrument goes back to mode menu automatically User m init Start Initiali...

Page 250: ... Confirm with key The display shows Enter the temperature value T in the range between 3 and 53 C and confirm with key If F was selected enter the temperature value in the range between 37 and 128 F The display shows Enter the value for Calcium hardness CH in the range between 50 and 1000 mg l CaCO3 and confirm with key The display shows Enter the value for Total Alkalinity TA in the range between...

Page 251: ...nfirm display message with key and enter a value in the defined range Selection of temperature unit Entering the temperature value is possible in degree Celsius or degree Fahrenheit Therefore the following preselection is once required Press MODE Shift 7 1 keys Confirm with key The display shows Press Shift 1 key to select degree Celsius Press Shift 2 key to select degree Fahrenheit The instrument...

Page 252: ...D contrast 2 4 10 Instrument special functions service Meter Information Press MODE Shift 9 1 keys Confirm with key This method informs you about the current software version about the current detected mains power supply about the number of performed tests and free memory capacity Press arrow key to display the number of performed tests and free memory capacity Finish with ESC key System Info Soft...

Page 253: ...d area 2 5 3 Internet Updates To connect the instrument to the serial interface of a computer the optional connection cable with integrated electronic system is required It is possible to update new software applications and additional languages via the internet Please find detailed information at our homepage in the download area as soon as available How to open and close the battery compartment ...

Page 254: ...252 Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide ...

Page 255: ...253 Thermo Scientific Orion AQUAfast AQ3700 Colorimeter User Guide Part 3 Enclosure ...

Page 256: ...Standard contents for Orion AQ3700 1 Meter in plastic case 4 batteries Type AA LR 6 1 Instruction manual 1 Guarantee declaration 1 Certificate of compliance Adapter for 16 mm Ø vials Adapter for 13 mm Ø vials Round vials with cap height 48 mm Ø 24 mm Round vials with cap height 90 mm Ø 16 mm Cleaning brush Stirring rod plastic Reagent sets IRIM module and connection cable with integrated electroni...

Page 257: ...1 m Operation Acid and solvent resistant touch sensitive keyboard with integral beeper as acoustic indicator Power supply 4 batteries Type AA LR 6 lifetime approx 26 hours continuous use or 3500 tests Auto off 20 minutes after last function 30 seconds acoustical signal before switch off Dimensions approx 210 x 95 x 45 mm unit approx 395 x 295 x 106 mm case Weight unit approx 450 g Working conditio...

Page 258: ... ppth gram per litre KI Potassium iodide KS 4 3 Acid demand to pH 4 3 this method is similar to Total Alkalinity but converted into the unit mmol l as the German DIN 38409 demand TDS Total Dissolved Solids LR Low Range MR Medium Range HR High Range C Reagents from Chemetrics L Liquid reagent P Powder reagent PP Powder Pack T Tablet TT Tube Test DEHA N N Diethylhydroxylamine DPD Diethyl p phenylend...

Page 259: ... full capacity warning signal every 3 minutes warning signal every 12 seconds warning signal the instrument switches itself off capacity of the battery is too low change the batteries Jus Overrange E4 The user calibration is out of the accepted range Please check the standard reaction time and other possible faults Repeat the user calibration Jus Underrange E4 Overrange E1 The concentration of the...

Page 260: ...e are different but considering the tolerances of each reading they are the same For this reason the combined Chlorine is most likely zero Example 2 The reading for free Chlorine is under the detection limit The instrument is not able to calculate the combined Chlorine In this case the combined Chlorine is most likely the same as the total Chlorine Example 3 The reading for total Chlorine is excee...

Page 261: ...Chlorine test there is no selection between differentiated free or total Profi Mode is switched on Switch Profi Mode off with Mode 50 The pre programmed countdown is not displayed Countdown is not activated and or the Profi Mode is activated Switch the countdown on with Mode 13 and or switch the Profi Mode off with Mode 50 It seems that a method is not available Method is not activated in the user...

Page 262: ...rly MA 01915 USA Hereby declares that the following product AQUAfast AQ3700 Colorimeter Conforms to the following standards EMC Emission EN 61326 1997 A1 1998 A2 2001 A3 2003 Devices for class B Immunity EN 61326 1997 A1 1998 A2 2001 A3 2003 Requirements according to table A1 industrial environment Applicable standards 61000 4 3 1996 A1 2002 This product conforms to the regulations of the directiv...

Page 263: ......

Page 264: ... water thermo com Netherlands Tel 31 033 2463887 info water uk thermo com India Tel 91 22 4157 8800 wai asia thermofisher com Japan Tel 81 045 453 9175 wai asia thermofisher com China Tel 86 21 68654588 wai asia thermofisher com Singapore Tel 65 6778 6876 wai asia thermofisher com www thermoscientific com water 2010 Thermo Fisher Scientific Inc All rights reserved ...

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