Page 1 Photometer System Instruction manual...
Page 3: Safety Precautions
Safety precautions CAUTION Reagents are formulated exclusively for chemical analysis and must not be used for any other purpose. Reagents must not get into the hands of children. Some of the reagents contain substances which are not entirely harmless environmentally. Be aware of the ingredients and take proper care when disposing of the test solution.
Page 4: Table Of Contents
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 with tablets ....................18 Aluminium (powder pack) ....................20 Ammonia with tablet ......................
Page 5 free Copper ........................ 72 total Copper ....................... 73 Copper (powder pack) ....................74 Cyanide .......................... 76 Cyanuric acid ........................78 DEHA T ........................... 80 DEHA PP ......................... 82 Fluoride .......................... 84 Hardness, Calcium with Calcheck tablet ................86 Hardness, Calcium with Calcio tablet ................88 Hardness, total ........................
Page 6 Phosphate, ortho (powder pack) ................150 Phosphate, ortho (tube test) ..................152 Phosphate 1, ortho C ....................154 Phosphate 2, ortho C ....................156 Phosphate, hydrolyzable (tube test) ................158 Phosphate, total (tube test) ..................160 Phosphonates ....................... 162 pH value LR with tablet ....................166 pH value with tablet ......................
Page 7 Overview of function keys ............... 209 2.2.1 Overview ...................... 209 2.2.2 Displaying time and date ................210 2.2.3 User countdown ................... 210 Operation mode ..................211 2.3.1 Automatic switch off ..................211 2.3.2 Selecting a method ..................211 2.3.2.1 Method Information (F1) ................211 2.3.2.2 Chemical Species Information ...............
Page 8 Part 3 Enclosure ....................257 Unpacking ....................258 Delivery contents ..................258 blank because of technical requirements Technical data ....................259 Abbreviations ....................260 Troubleshooting ................... 261 3.6.1 Operating messages in the display / error display .......... 261 3.6.2 General ......................263 Declaration of CE-Conformity ...............
Page 9: Part 1 Methods
Part 1 Methods MaxiDirect_2c 03/2010...
Page 10: Table Of Methods
1.1 Methods 1.1 Table of Methods No. Analysis Reagent Range Displayed Method Page [nm] 20 Acid demand tablet 0.1-4 mmol/l Acid/Indicator 610 12 1,2,5 to pH 4.3 T 30 Alkalinity, total T tablet 5-200 mg/l CaCO Acid/Indicator 610 14 1,2,5 35 Alkalinity-p T tablet 5-300...
Page 11 1.1 Methods 1.1 Table of Methods No. Analysis Reagent Range Displayed Method Page [nm] 191 Hardness, tablet 0-500 mg/l CaCO Murexide 560 88 Calcium 2T 200 Hardness, total T tablet 2-50 mg/l CaCO Metallphthalein 560 90 201 Hardness, total tablet 20-500 mg/l CaCO Metallphthalein...
Page 12 1.1 Methods 1.1 Table of Methods No. Analysis Reagent Range Displayed Method Page [nm] 321 Phosphate, tablet 1-80 mg/l PO Vanando- 430 144, ortho HR T molybdate 323 Phosphate, PP 0.06-2.5 mg/l PO Ascorbic acid 660 144, ortho 324 Phosphate, tube test 0.06-5 mg/l PO...
Page 13 1.1 Methods The precision of Lovibond Reagent Systems (tablets, powder packs and tube tests) is identical ® to the precision specified in standards literature such as American Standards (AWWA), ISO etc. Most of the data referred to in these standard methods relates to Standard Solutions.
Page 14: Acid Demand To Ph 4.3
1.1 Methods Acid demand to pH 4.3 with Tablet 0.1 – 4 mmol/l 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 15 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. MaxiDirect_2c 03/2010...
Page 16: Alkalinity-Total (Alkalinity-M, M-Value)
1.1 Methods Alkalinity, total = Alkalinity-m = m-Value with Tablet 5 – 200 mg/l CaCO 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 17 1.1 Methods Notes: 1. The terms total Alkalinity, Alkalinity-m, m-Value and Alkalinity to pH 4.3 are identical. 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 German English French...
Page 18: Alkalinity-P (P-Value)
1.1 Methods Alkalinity-p = p-value with Tablet 5 – 300 mg/l CaCO 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 19 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 taken for the test. 3. This method was developed from a volumetric procedure for the determination of Alkalinity-p.
Page 20: Aluminium With Tablets
1.1 Methods Aluminium with Tablet 0.01 – 0.3 mg/l Al 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 21 1.1 Methods Notes: 1. Before use, clean the vials and the measuring beaker with Hydrochloric acid (approx. 20%). Rinse them thoroughly with deionised water. 2. To get accurate results 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.
Page 22: Aluminium (Powder Pack)
1.1 Methods Aluminium with Vario Powder Pack 0.01 – 0.25 mg/l Al Use two clean vials (24 mm Ø) and mark one as blank for zeroing. 1. Fill 20 ml of the water sample in a 100 ml beaker. 2. Add the contents of one Vario Aluminum ECR F20 Powder Pack straight from the foil to the water sample.
Page 23 1.1 Methods After the reaction period is finished proceed as follows: 12. Place the vial (the blank) in the sample chamber making sure that the marks are aligned. prepare Zero 13. Press ZERO key. press ZERO 14. Remove the vial from the sample chamber. 15.
Page 24: Ammonia With Tablet
1.1 Methods Ammonia with Tablet 0.02 – 1 mg/l N 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 25 1.1 Methods Notes: 1. The tablets must be added in the correct sequence. 2. The AMMONIA No. 1 tablet will only dissolve completely after the AMMONIA No. 2 tablet has been added. 3. The temperature of the sample is important for full colour development. At a temperature below 20°C the reaction period is 15 minutes.
Page 26: Ammonia (Powder Pack)
1.1 Methods Ammonia with Vario Powder Pack 0.01 – 0.8 mg/l N Use two clean vials (24 mm Ø) and mark one as blank for zeroing. 1. Fill a clean vial (24 mm Ø) with 10 ml of deionised water (this is the blank). 2.
Page 27 1.1 Methods Notes: 1. Extremely basic or acidic water samples should be adjusted with 0.5 mol/l (1 N) Sulfuric acid solution or 1 mol/l (1 N) Sodium hydroxide solution to pH 7. 2. Interferences: Interfering substance Interference levels and treatments Calcium greater than 1000 mg/l CaCO Iron...
Page 28: Ammonia, Low Range (Lr)
1.1 Methods Ammonia LR with Vario Tube Test 0.02 – 2.5 mg/l N Insert the adapter for 16 mm Ø vials. 1. Open one white capped reaction vial and add 2 ml deionised water (this is the blank). 2. Open another white capped reaction vial and add Ø...
Page 29 1.1 Methods Notes: 1. Strong alkaline or acidic water samples must be adjusted to approx. pH 7 before analysis (use 1 mol/l Hydrochloric acid resp. 1 mol/l Sodium hydroxide). 2. If chlorine is known to be present, add one drop of 0.1 mol/l Sodium thiosulfate for each 0.3 mg/l Cl in a one litre water sample.
Page 30: Ammonia, High Range (Hr)
1.1 Methods Ammonia HR with Vario Tube Test 1 – 50 mg/l N Insert the adapter for 16 mm Ø vials. 1. Open one white capped reaction vial and add 0.1 ml deionised water (this is the blank). 2. Open another white capped reaction vial and add Ø...
Page 31 1.1 Methods Notes: 1. Strong alkaline or acidic water samples must be adjusted to approx. pH 7 before analysis (use 1 mol/l Hydrochloric acid resp. 1 mol/l Sodium hydroxide). 2. If chlorine is known to be present, add one drop of 0.1 mol/l Sodium thiosulfate for each 0.3 mg/l Cl in a one litre water sample.
Page 32: Boron
1.1 Methods Boron with Tablet 0.1 – 2 mg/l B 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 33 1.1 Methods Notes: 1. The 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 colour development depends on the temperature. The temperature of the sample must be 20°C ±...
Page 34: Bromine
1.1 Methods Bromine with Tablet 0.05 – 13 mg/l Br 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 35 1.1 Methods Notes: 1. Vial cleaning: As many household cleaners (e.g. dishwasher detergent) contain reducing substances, the subsequent determination of Bromine may show lower results. To avoid any measurement errors, only use glassware free of Chlorine demand. Preparation: Put all applicable glassware into Sodium hypochlorite solution (0.1 g/l) for one hour, then rinse all glassware thoroughly with deionised water.
Page 36: Chloramine (Mono) And Free Ammonia
1.1 Methods Chloramine (Mono) and Free Ammonia with Vario Powder Pack and Liquid Reagent 0.04 – 4.50 mg/l Cl Chloramine (Mono) The following selection is shown in the display: >> with without NH4 for the determination of Monochloramine and free Am- >>...
Page 37 1.1 Methods Chloramine (Mono) with Vario Powder Pack 0.04 – 4.50 mg/l Cl 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 38 1.1 Methods Chloramine (Mono) and Free Ammonia with Vario Powder Pack and Liquid Reagent 0.04 – 4.50 mg/l Cl 0.01 – 0.50 mg/l NH Use two clean vials (24 mm Ø) and mark one as the chloramine vial, the other as the ammonia vial. 1.
Page 39 1.1 Methods 13. Close the vial tightly with the cap and swirl several times to mix the contents (approx. 20 seconds). 14. Place the ammonia vial in the sample chamber making sure that the marks are aligned. T1 accepted prepare T2 15.
Page 40: Chloride
1.1 Methods Chloride with Tablet 0.5 – 25 mg/l Cl 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 41 1.1 Methods Notes: 1. Ensure that all particles of the tablet are dissolved – Chloride causes an extremely fine distributed turbidity with a milky appearance. 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.
Page 42: Chlorine
1.1 Methods Chlorine with Tablet 0.01 – 6 mg/l Cl Chlorine with Liquid Reagent 0.02 - 4 mg/l Cl Chlorine with Vario Powder Pack 0.02 - 2 mg/l Cl Chlorine >> diff The following selection is shown in the display: free total for the differentiated determination of free, combined and...
Page 43 1.1 Methods Notes: 1. Vial cleaning: As many household cleaners (e.g. dishwasher detergent) contain reducing substances, the subsequent determination of Chlorine may show lower results. To avoid any measurement errors, only use glassware free of Chlorine demand. Preparation: Put all applicable glassware into Sodium hypochlorite solution (0.1 g/l) for one hour, then rinse all glassware thoroughly with deionised water.
Page 44: Differentiated Determination (Free, Combined, Total)
1.1 Methods Chlorine, differentiated determination with Tablet 0.01 – 6 mg/l Cl 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 45 1.1 Methods 13. Place the vial in the sample chamber making sure that marks are aligned. T1 accepted 14. Press TEST key. prepare T2 Wait for a reaction period of 2 minutes. press TEST Countdown 2:00 After the reaction period is finished the measurement starts automatically.
Page 46: Free Chlorine
1.1 Methods Chlorine, free with Tablet 0.01 – 6 mg/l Cl 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 47: Total Chlorine
1.1 Methods Chlorine, total with Tablet 0.01 – 6 mg/l Cl 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 48: Chlorine With Liquid Reagent
1.1 Methods Chlorine, differentiated determination with Liquid Reagent 0.02 – 4 mg/l Cl 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 49 1.1 Methods 13. Place the vial in the sample chamber making sure that marks are aligned. T1 accepted prepare T2 14. Press TEST key. press TEST Wait for a reaction period of 2 minutes. Countdown 2:00 After the reaction period is finished the measurement starts automatically.
Page 50: Free Chlorine
1.1 Methods Chlorine, free with Liquid Reagent 0.02 – 4 mg/l Cl 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 51: Total Chlorine
1.1 Methods Chlorine, total with Liquid Reagent 0.02 – 4 mg/l Cl 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 52: Differentiated Determination (Free, Combined, Total)
1.1 Methods Chlorine, differentiated determination with Vario Powder Pack 0.02 – 2 mg/l Cl 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 53 1.1 Methods 12. Place the vial in the sample chamber making sure that marks are aligned. T1 accepted prepare T2 13. Press TEST key. press TEST Wait for a reaction period of 3 minutes. Countdown 3:00 After the reaction period is finished the measurement starts automatically.
Page 54: Free Chlorine
1.1 Methods Chlorine, free with Vario Powder Pack 0.02 – 2 mg/l Cl 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 55: Total Chlorine
1.1 Methods Chlorine, total with Vario Powder Pack 0.02 – 2 mg/l Cl 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 56: Chlorine Dioxide
1.1 Methods Chlorine dioxide with Tablet 0.05 – 11 mg/l ClO Chlorine dioxide >> with Cl The following selection is shown in the display: without Cl for the determination of Chlorine dioxide in the presence >> with Cl of Chlorine. for the determination of Chlorine dioxide in the absence >>...
Page 57 1.1 Methods Notes: 1. Vial cleaning: As many household cleaners (e.g. dishwasher detergent) contain reducing substances, the subsequent determination of Chlorine dioxide may show lower results. To avoid any measurement errors, only use glassware free of Chlorine demand. Preparation: Put all applicable glassware into Sodium hypochlorite solution (0.1 g/l) for one hour, then rinse all glassware thoroughly with deionised water.
Page 58: In Presence Of Chlorine
1.1 Methods Chlorine dioxide in the presence of Chlorine with Tablet 0.05 – 11 mg/l ClO 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 59 1.1 Methods 13. Remove the vial from the sample chamber, empty the vial, rinse vial and cap several times. Fill with a few drops of the water sample. 14. Add one DPD No. 1 tablet straight from the foil and crush the tablet using a clean stirring rod.
Page 60 1.1 Methods Notes: (Chlorine dioxide in the presence of Chlorine) 1. The conversion factor to convert Chlorine dioxide as Chlorine to Chlorine dioxide as ClO is approximately 0.4 (more exactly 0.38). mg/l ClO = mg/l ClO [Cl] x 0.38 [Cl] (Chlorine dioxide displayed as Chlorine units ClO [Cl] has its origin in swimming poolwater treatment according to DIN 19643.)
Page 61: In Absence Of Chlorine
1.1 Methods Chlorine dioxide in absence of Chlorine with Tablet 0.05 – 11 mg/l ClO 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 62: Chlorine Hr (Ki)
1.1 Methods Chlorine HR (Kl) with Tablet 5 – 200 mg/l Cl Insert the adapter for 16 mm Ø vials. 1. Fill a clean vial (16 mm Ø) with 8 ml of the water sample, close tightly with the cap. Ø...
Page 63 1.1 Methods Notes: 1. Oxidizing agents interfere as they react in the same way as Chlorine. MaxiDirect_2c 03/2010...
Page 64: Cod, Low Range (Lr)
1.1 Methods COD LR with Vario Tube Test 0 – 150 mg/l O Insert the adapter for 16 mm Ø vials. 1. Open one white capped reaction vial and add 2 ml deionised water (this is the blank (Note 1)). 2.
Page 65 1.1 Methods Notes: 1. Run samples and blanks with the same batch of vials. The blank is stable when stored in the dark and can be used for further measurements with vials of the same batch. 2. Do not place the hot vials in the sample chamber. Cool the vials to room temperature for final measurements.
Page 66: Cod, Middle Range (Mr)
1.1 Methods COD MR with Vario Tube Test 0 – 1500 mg/l O Insert the adapter for 16 mm Ø vials. 1. Open one white capped reaction vial and add 2 ml deionised water (this is the blank (Note 1)). 2.
Page 67 1.1 Methods Notes: 1. Run samples and blanks with the same batch of vials. The blank is stable when stored in the dark and can be used for further measurements with vials of the same batch. 2. Do not place the hot vials in the sample chamber. Cool the vials to room temperature for final measurements.
Page 68: Cod, High Range (Hr)
1.1 Methods COD HR with Vario Tube Test 0 – 15 g/l O 0 – 15 000 mg/l O Insert the adapter for 16 mm Ø vials. 1. Open one white capped reaction vial and add 0.2 ml deionised water (this is the blank (Note 1)). 2.
Page 69 1.1 Methods Notes: 1. Run samples and blanks with the same batch of vials. The blank is stable when stored in the dark and can be used for further measurements with vials of the same batch. 2. Do not place the hot vials in the sample chamber. Cool the vials to room temperature for final measurements.
Page 70: Colour, True And Apparent
1.1 Methods Colour, true and apparent (APHA Platinum-Cobalt Standard Method) 0 – 500 Pt-Co units (mg/l Pt) Sample preparation (Note 4): Step A Filter approx. 50 ml deionised water through a membrane filter with a pore width of 0.45 μm. Discard the filtrate.
Page 71 1.1 Methods Notes: 1. This colour scale was originally developed by A. Hazen as a visual comparison scale. It is therefore necessary to ascertain whether the extinction maximum of the water sample is in the range from 420 to 470 nm, as this method is only suitable for water samples with yellowish to yellowish-brown coloration.
Page 72: Copper With Tablet
1.1 Methods Copper with Tablet 0.05 – 5 mg/l Cu Copper The following selection is shown in the display: >> diff free total for the differentiated determination of free, combined and >> diff total Copper. >> free for the determination of free Copper. for the determination of total Copper.
Page 73: Differentiated Determination (Free, Combined, Total)
1.1 Methods Copper, differentiated determination with Tablet 0.05 – 5 mg/l Cu 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 74: Free Copper
1.1 Methods Copper, free with Tablet 0.05 – 5 mg/l Cu 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 75: Total Copper
1.1 Methods Copper, total with Tablet 0.05 – 5 mg/l Cu 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 76: Copper (Powder Pack)
1.1 Methods Copper, free (Note 1) with Vario Powder Pack 0.05 – 5 mg/l Cu 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 77 1.1 Methods Notes: 1. For determination of total Copper digestion is required. 2. Extremely acid water samples (pH 2 or less) must be adjusted between pH 4 and pH 6 before the reagent is added (with 8 mol/l Potassium hydroxide solution KOH). Caution: pH values above 6 can lead to Copper precipitation.
Page 78: Cyanide
1.1 Methods Cyanide with Reagent Test 0.01 – 0.5 mg/l CN 1. Fill a clean vial (24 mm Ø) with 2 ml of the water sample and 8 ml of deionised water, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 79 1.1 Methods Notes: 1. Only free Cyanide and 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.
Page 80: Cyanuric Acid
1.1 Methods Cyanuric acid with Tablet 2 – 160 mg/l Cys 1. Fill a clean vial (24 mm Ø) with 5 ml of the water sample and 5 ml deionised water (Note 1), close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 81 1.1 Methods Notes: 1. Use deionised water or tap water free of Cyanuric acid. 2. If Cyanuric acid is present a cloudy solution will occur. Small single particles are not necessarily caused by Cyanuric acid. 3. Dissolve the tablet completely (therefore swirl the vial approx. 1 minute). Un-dissolved particles of the tablet can cause results that are too high.
Page 82: Deha T
1.1 Methods DEHA (N,N-Diethylhydroxylamine) with Tablet and Liquid Reagent 20 – 500 μg/l DEHA / 0.02 – 0.5 mg/l DEHA 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap (Note 2). 2.
Page 83 1.1 Methods Notes: 1. Application: Testing of residual corrosion inhibitors (Oxygen scavengers) in boiler feed water or condensate. 2. Before using clean the vials with Hydrochloric acid (approx. 20%). Rinse thoroughly with deionised water. 3. Keep the sample dark during colour development time. UV-light (sunlight) causes high measurement results.
Page 84: Deha Pp
1.1 Methods DEHA (N,N-Diethylhydroxylamin) with Vario Powder Pack and Liquid Reagent 20 – 500 μg/l DEHA / 0.02 – 0.5 mg/l DEHA Use two clean vials (24 mm Ø) and mark one as blank for zeroing (Note 2). 1. Fill a clean vial with 10 ml deionised water (this is the blank).
Page 85 1.1 Methods Notes: 1. Application: Testing of residual corrosion inhibitors (Oxygen scavengers) in boiler feed water or condensate. 2. Before using clean the vials with Hydrochloric acid (approx. 20%). Rinse thoroughly with deionised water. 3. Ideally temperature for full colour development is 25°C ± 3 °C. 4.
Page 86: Fluoride
1.1 Methods Fluoride with Liquid Reagent 0.05 – 2 mg/l F Caution: See notes! 1. Fill a clean vial (24 mm Ø) with exactly 10 ml of water sample (Note 4), close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 87 1.1 Methods Notes: 1. The same batch of SPADNS reagent solution must be used for adjustment and test. The adjustment process needs to be performed for each new batch of SPADNS reagent solution (see Standard Methods 20th, 1998, APHA, AWWA, WEF 4500 F D., S. 4-82). The procedure is described in chapter 2.4.5 “Calibration –...
Page 88: Hardness, Calcium With Calcheck Tablet
1.1 Methods Hardness, Calcium with Tablet 50 – 900 mg/l CaCO 1. Fill a clean vial (24 mm Ø) with 10 ml deionised water. 2. Add one CALCHECK tablet straight from the foil to the deionised water and crush the tablet using a clean stirring rod.
Page 89 1.1 Methods Notes: 1. Strong alkaline or acidic water samples must be adjusted between pH 4 and pH 10 before the tablet is added (use 1 mol/l Hydrochloric acid resp. 1mol/l Sodium hydroxide). 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.
Page 90: Hardness, Calcium With Calcio Tablet
1.1 Methods Hardness, Calcium 2T with Tablet 0 – 500 mg/l CaCO 1. Fill a clean vial (24 mm Ø) with 10 ml of water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 91 1.1 Methods Notes: 1. To optimise the readings an optional batch related calibration can be performed using Mode 40, see page 232. 2. Strong alkaline or acidic water samples must be adjusted to a pH-value between pH 4 and 10 before the tablets are added (use 1 mol/l Hydrochloride acid resp. 1 mol/l Sodium hydroxide).
Page 92: Hardness, Total
1.1 Methods Hardness, total with Tablet 2 – 50 mg/l CaCO 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 93 1.1 Methods Notes: 1. Strong alkaline or acidic water samples must be adjusted between pH 4 and pH 10 before the tablet is added (use 1 mol/l Hydrochloric acid resp. 1mol/l Sodium hydroxide). 2. Conversion table: mg/l CaCO °dH °fH °eH 1 mg/l CaCO ----...
Page 94: Hardness, Total Hr
1.1 Methods Hardness, total HR with Tablet 20 – 500 mg/l CaCO 1. Fill a clean vial (24 mm Ø) with 1 ml of the water sample and 9 ml of deionised water, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 95 1.1 Methods Notes: 1. Strong alkaline or acidic water samples must be adjusted between pH 4 and pH 10 before the tablet is added (use 1 mol/l Hydrochloric acid resp. 1mol/l Sodium hydroxide). 2. Conversion table: mg/l CaCO °dH °fH °eH 1 mg/l CaCO ----...
Page 96: Hydrazine
1.1 Methods Hydrazine with Powder Reagent 0.05 – 0.5 mg/l N / 50 – 500 μg/l N 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample (Note 1, 2), close tightly with the cap. 2.
Page 97 1.1 Methods Notes: 1. If the water sample is cloudy, you must filter it before performing the zero calibration. 2. The temperature of the water sample should not exceed 21°C. 3. Using the Hydrazine spoon: 1 g is equivalent to one level spoon. 4.
Page 98: Hydrazine With Liquid Reagent
1.1 Methods Hydrazine with Vario Liquid Reagent 0.005 – 0.6 mg/l N / 5 – 600 μg/l N Use two clean vials (24 mm Ø) and mark one as blank for zeroing. 1. Fill a clean vial with 10 ml deionised water (this is the blank).
Page 99 1.1 Methods Notes: 1. Samples cannot be preserved and must be analysed immediately. 2. Sample temperature should be 21°C ± 4 °C. 3. The blank may develop a faint yellow colour due to the reagent. 4. Interferences: • Ammonia causes no interferences up to 10 mg/l. At a concentration of 20 mg/l it is possible that the test result increases by 20%.
Page 100: Hydrazine With Vacu-Vials
1.1 Methods Hydrazine with Vacu-vials K-5003 (see Notes) ® 0.01 – 0.7 mg/l N / 10 – 700 μg/l N Insert the adapter for 13 mm Ø vials. 1. Place the blank in the sample chamber. The blank is part of the test kit.
Page 101 1.1 Methods Notes: 1. This method is adapted from CHEMetrics. 2. Read the original test instruction and the MSDS (delivered with the test) before performing the test. MSDS also available at www.chemetrics.com. 3. Vacu-vials is a registered trade mark of the company CHEMetrics, Inc. / Calverton, ®...
Page 102: Hydrogen Peroxide
1.1 Methods Hydrogen peroxide with tablet reagent 0.03 – 3 mg/l H 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 103 1.1 Methods Notes: 1. Vial cleaning: As many household cleaners (e.g. dishwasher detergent) contain reducing substances, the subsequent determination of Hydrogen peroxide may show lower results. To avoid any measurement errors, only use glassware free of Chlorine demand. Preparation: Put all applicable glassware into Sodium hypochlorite solution (0.1 g/l) for one hour, then rinse all glassware thoroughly with deionised water.
Page 104: Iodine
1.1 Methods Iodine with Tablet 0.05 – 3.6 mg/l I 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 105 1.1 Methods Notes: 1. Oxidizing reagents, such as Chlorine, Bromine, etc. interfere as they react in the same way as Iodine. MaxiDirect_2c 03/2010...
Page 106: Iron
1.1 Methods Iron with Tablet 0.02 – 1 mg/l Fe *Determination of total dissolved Iron Fe and Fe Iron with Vario Powder Pack 0.02 – 3 mg/l Fe *Determination of all dissolved iron and most undissolved forms of iron. Iron, total with Vario Powder Pack 0.02 –...
Page 107 1.1 Methods Notes: Iron Determination dissolved and dissolved Iron undissolved Iron Filtration Digestion + Fe + Fe IRON LR IRON (II) LR methods tablet tablet 220, 222, 223 result A result B minus = Fe Digestion procedure for the determination of total dissolved and undissolved iron. 1.
Page 108: Iron With Tablet
1.1 Methods Iron (Note 1) with Tablet 0.02 – 1 mg/l Fe 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 109 1.1 Methods Notes: 1. This method determines the total dissolved Iron as Fe and Fe 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: Iron (Powder Pack)
1.1 Methods Iron (Note 1) with Vario Powder Pack 0.02 – 3 mg/l Fe 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that the marks are aligned.
Page 111 1.1 Methods Notes: 1. The reagent reacts with all dissolved iron and most undissolved forms of iron in the water sample. 2. Iron oxide requires prior digestion: use mild, vigorous or Digesdahl digestion (e.g. for digestion with acid see page 105). 3.
Page 112: Iron Tptz (Powder Pack)
1.1 Methods Iron, total (TPTZ, Note 1) with Vario Powder Pack 0.02 – 1.8 mg/l Fe Use two clean vials (24 mm Ø) and mark one as blank for zeroing. 1. Fill a clean vial with 10 ml deionised water (this is the blank).
Page 113 1.1 Methods Notes: 1. For determination of total Iron digestion is required. TPTZ reagent recovers most insoluble iron oxides without digestion. 2. Rinse all glassware with 1:1 Hydrochloric acid solution first and then rinse with deionised water to remove iron deposits that can cause slightly high results. 3.
Page 114: Manganese With Tablet
1.1 Methods Manganese with Tablet 0.2 – 4 mg/l Mn 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 115 1.1 Methods Note: KMnO MaxiDirect_2c 03/2010...
Page 116: Manganese Lr (Powder Pack)
1.1 Methods Manganese LR with Vario Powder Pack 0.01 – 0.7 mg/l Mn Use two clean vials (24 mm Ø) and mark one as blank for zeroing (Note 1). 1. Fill a clean vial with 10 ml of deionised water (this is the blank).
Page 117 1.1 Methods Notes: 1. Rinse all glassware with 1:1 Nitric acid solution first and then rinse with deionised water. 2. Water samples that contain more than 300 mg/l CaCO hardness: after adding the Vario Ascorbic Acid powder pack add additionally 10 drops of Rochelle Salt Solution. 3.
Page 118: Manganese Hr (Powder Pack)
1.1 Methods Manganese HR with Vario Powder Pack 0.1 – 18 mg/l Mn 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 119 1.1 Methods Notes: 1. This test is applicable for the determination of soluble Manganese in water and wastewater. 2. Highly buffered water samples or extreme pH values may exceed 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.
Page 120: Molybdate With Tablet
1.1 Methods Molybdate with Tablet 1 – 50 mg/l MoO / 0.6 – 30 mg/l Mo 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 121 1.1 Methods 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 MoO x 0.6 mg/l Na...
Page 122: Molybdate Hr (Powder Pack)
1.1 Methods Molybdate / Molybdenum HR with Vario Powder Pack 0.5 – 66 mg/l MoO / 0.3 – 40 mg/l Mo 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2.
Page 123 1.1 Methods Notes: 1. Filter turbid water samples using filter paper and funnel before analysis. 2. Highly buffered water samples or extreme pH values should be adjusted to a pH of nearly 7 with 1 mol/l Nitric acid or 1 mol/l Sodium hydroxide. 3.
Page 124: Nitrate
1.1 Methods Nitrate with Tube Test 1 – 30 mg/l N Insert the adapter for 16 mm Ø vials. 1. Open one white capped vial (Reagent A) and add 1 ml deionised water (this is the blank). Ø 16 mm 2.
Page 125 1.1 Methods Notes: 1. Some solids may not dissolve. 2. Conversion: mg/l NO = mg/l N x 4.43 MaxiDirect_2c 03/2010...
Page 126: Nitrite With Tablet
1.1 Methods Nitrite with Tablet 0.01 – 0.5 mg/l N 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that the marks are aligned.
Page 127 1.1 Methods Notes: 1. The following ions can produce interferences since under the reaction conditions they cause precipitation: 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.
Page 128: Nitrite Lr (Powder Pack)
1.1 Methods Nitrite LR with Vario Powder Pack 0.01 – 0.3 mg/l N 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 129 1.1 Methods Notes: 1. Interferences: • Strong oxidizing and reducing substances interfere. • Cupric and ferrous ions cause low 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.
Page 130: Nitrogen, Total Lr
1.1 Methods Nitrogen, total LR with Vario Tube Test 0.5 – 25 mg/l N Insert the adapter for 16 mm Ø vials. 1. Open two TN Hydroxide LR digestion vials and add the contents of one Vario TN Persulfate Rgt. Powder Pack (Note 2, 3).
Page 131 1.1 Methods 16. Place the vial (the blank) in the sample chamber making sure that the marks l are aligned. prepare Zero press ZERO 17. Press ZERO key. Wait for a reaction period of 5 minutes. Countdown 5:00 After the reaction period is finished the measurement starts automatically.
Page 132: Nitrogen, Total Hr
1.1 Methods Nitrogen, total HR with Vario Tube Test 5 – 150 mg/l N Insert the adapter for 16 mm Ø vials. 1. Open two TN Hydroxide HR digestion vials and add the contents of one Vario TN Persulfate Rgt. Powder Pack (Note 2, 3).
Page 133 1.1 Methods 16. Place the vial (the blank) in the sample chamber making sure that the l marks are aligned. prepare Zero 17. Press ZERO key. press ZERO Wait for a reaction period of 5 minutes. Countdown After the reaction period is finished the measurement 5:00 starts automatically.
Page 134: Oxygen, Active
1.1 Methods Oxygen, active * with Tablet 0.1 – 10 mg/l O 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 135 1.1 Methods Notes: * Active Oxygen is a synonym for a common disinfectant (based on “Oxygen“) in Swimming Pool Treatment. 1. When preparing the sample, the lost of Oxygen, e.g. by pipetting or shaking, must be avoided. 2. The analysis must take place immediately after taking the sample. MaxiDirect_2c 03/2010...
Page 136: Oxygen, Dissolved
1.1 Methods Oxygen, dissolved with Vacu-vials K-7553 (see Notes) ® 10 – 800 μg/l O Insert the adapter for 13 mm Ø round vials. 1. Place the blank in the sample chamber. The blank is part of the test kit. prepare Zero 2.
Page 137 1.1 Methods Notes: 1. This method is adapted from CHEMetrics. 2. Read the original test instruction and the MSDS (delivered with the test) before performing the test. MSDS also available at www.chemetrics.com. 3. Vacu-vials is a registered trade mark of the company CHEMetrics, Inc. / Calverton, ®...
Page 138: Ozone
1.1 Methods Ozone with Tablet 0.02 – 2 mg/l O Ozon >> with Cl The following selection is shown in the display: without Cl >> with Cl for the determination of Ozone in the presence of Chlorine. >> without Cl for the determination of Ozone in the absence of Chlorine.
Page 139 1.1 Methods Notes: 1. Vial cleaning: As many household cleaners (e.g. dishwasher detergent) contain reducing substances, the subsequent determination of Ozone may show lower results. To avoid any measurement errors, only use glassware free of Chlorine demand. Preparation: Put all applicable glassware into Sodium hypochlorite solution (0.1 g/l) for one hour, then rinse all glassware thoroughly with deionised water.
Page 140: In Presence Of Chlorine
1.1 Methods Ozone, in the presence of Chlorine with Tablet 0.02 – 2 mg/l O 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 141 1.1 Methods 12. Fill a second clean vial with 10 ml of the water sample. 13. Add one GLYCINE tablet straight from the foil and crush the tablet using a clean stirring rod. 14. Close the vial tightly with the cap and swirl several times until the tablet is dissolved.
Page 142: In Ábsence Of Chlorine
1.1 Methods Ozone, in absence of Chlorine with Tablet 0.02 – 2 mg/l O 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 143 MaxiDirect_2c 03/2010...
Page 144: Phmb (Biguanide)
1.1 Methods PHMB (Biguanide) with Tablet 2 – 60 mg/l PHMB 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 145 1.1 Methods Notes: 1. Clean vials with the brush immediately after analysis. 2. Vials and stirring rods may turn blue after prolonged use. In this case clean vials and stirring rods with a laboratory detergent (see chapter 1.2.2 Cleaning of vials and accessories for analysis).
Page 146: Phosphate
1.1 Methods Phosphate, ortho LR with Tablet 0.05 – 4 mg/l PO Determination of ortho-Phosphate ions Phosphate, ortho HR with Tablet 1 – 80 mg/l PO Determination of ortho-Phosphate ions Phosphate, ortho with Vario Powder Pack 0.06 – 2.5 mg/l PO Determination of ortho-Phosphate ions Phosphate, ortho with Vario Tube Test...
Page 147 1.1 Methods General: Ortho-Phosphate ions react with the reagent to form an intense blue colour (methods 320, 323, 324, 325 and 326). Phosphate in organic and condensed inorganic forms (meta-, pyro- and polyphosphates) must be converted to ortho-Phosphate ions before analysis. Pretreatment of the sample with acid and heat provides the conditions for hydrolysis of the condensed inorganic forms.
Page 148: Phosphate, Ortho Lr With Tablet
1.1 Methods Phosphate, ortho LR with Tablet 0.05 – 4 mg/l PO 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close the cap tightly. 2. Place the vial in the sample chamber making sure that the marks are aligned.
Page 149 1.1 Methods Notes: 1. Only ortho-Phosphate ions react. 2. The tablets must be 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 colour. Silicates do not interfere (masked by Citric acid in the tablets).
Page 150: Phosphate, Ortho Hr With Tablet
1.1 Methods Phosphate HR, ortho with Tablet 1 – 80 mg/l PO 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 151 1.1 Methods Notes: 1. For samples under 5 mg/l PO it is reccommended to analyse the water sample with method 320 ”Posphate LR, ortho with Tablet“. 2. Only ortho-Phosphate ions react. 3. see also page 145 4. Conversions: mg/l P = mg/l PO x 0.33 mg/l P = mg/l PO...
Page 152: Phosphate, Ortho (Powder Pack)
1.1 Methods Phosphate, ortho with Vario Powder Pack 0.06 – 2.5 mg/l PO 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 153 1.1 Methods Notes: 1. The reagent does not dissolve completely. 2. see also page 145 3. Conversions: mg/l P = mg/l PO x 0.33 mg/l P = mg/l PO x 0.75 MaxiDirect_2c 03/2010...
Page 154: Phosphate, Ortho (Tube Test)
1.1 Methods Phosphate, ortho with Vario Tube Test 0.06 – 5 mg/l PO Insert the adapter for 16 mm Ø vials. 1. Open the white cap of one tube PO -P Dilution and add 5 ml of the water sample. Ø...
Page 155 1.1 Methods Notes: 1. Use a funnel to add the reagent. 2. The reagent does not dissolve completely. 3. see also page 145 4. Conversions: mg/l P = mg/l PO x 0.33 mg/l P = mg/l PO x 0.75 MaxiDirect_2c 03/2010...
Page 156: Phosphate 1, Ortho C
1.1 Methods Phosphate 1, ortho with Vacu-vials K-8503 (see Notes) ® 5 – 40 mg/l PO Insert the adapter for 13 mm Ø vials. 1. Place the blank in the sample chamber. The blank is part of the test kit. prepare Zero 2.
Page 157 1.1 Methods Notes: 1. This method is adapted from CHEMetrics. 2. Read the original test instruction and the MSDS (delivered with the test) before performing the test. MSDS also available at www.chemetrics.com. 3. Vacu-vials is a registered trade mark of the company CHEMetrics, Inc. / Calverton, ®...
Page 158: Phosphate 2, Ortho C
1.1 Methods Phosphate 2, ortho with Vacu-vials K-8513 (see Notes) ® 0.05 – 5 mg/l PO Insert the adapter for 13 mm Ø vials. 1. Place the blank in the sample chamber. The blank is part of the test kit. prepare Zero 2.
Page 159 1.1 Methods Notes: 1. This method is adapted from CHEMetrics. 2. Read the original test instruction and the MSDS (delivered with the test) before performing the test. MSDS also available at www.chemetrics.com. 3. Vacu-vials is a registered trade mark of the company CHEMetrics, Inc. / Calverton, ®...
Page 160: Phosphate, Hydrolyzable (Tube Test)
1.1 Methods Phosphate, acid hydrolyzable with Vario Tube Test 0.02 – 1.6 mg/l P (= ^ 0.06 – 5 mg/l PO Insert the adapter for 16 mm Ø vials. 1. Open the white cap of one digestion tube PO4-P Acid reagent and add 5 ml of the water sample.
Page 161 1.1 Methods 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 145 5. Conversions: mg/l PO = mg/l P x 3.07 mg/l P...
Page 162: Phosphate, Total (Tube Test)
1.1 Methods Phosphate, total with Vario Tube Test 0.02 – 1.1 mg/l P (= ^ 0.06 – 3.5 mg/l PO Insert the adapter for 16 mm Ø vials. 1. Open the white cap of one digestion tube PO4-P Acid reagent and add 5 ml of the water sample. 2.
Page 163 1.1 Methods 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 145 5. Conversions: mg/l PO = mg/l P x 3.07 mg/l P...
Page 164: Phosphonates
1.1 Methods Phosphonates Persulfate UV oxidation method with Vario Powder Pack 0 – 125 mg/l (see Table 1) 1. Choose the appropriate sample volume from table 1 (see following pages). 2. Pipette the chosen sample volume into a clean 50 ml graduated cylinder.
Page 165 1.1 Methods 13. Place the vial (the blank) in the sample chamber making sure that the marks are aligned. prepare Zero 14. Press ZERO key. press ZERO Wait for a reaction period of 2 minutes (Note 7). Countdown 2:00 After the reaction period is finished the measurement starts automatically.
Page 166 1.1 Methods Table 1: Expected range Sample volume Factor (mg/L Phosphonate) in ml 0 – 2.5 0 – 5.0 0 – 12.5 0 – 25 0 – 125 Table 2: Phosphonate type Conversion factor for active phosphonate PBTC 2.840 1.050 HEDPA 1.085 EDTMPA...
Page 167 1.1 Methods Interference levels decrease with increasing sample volume. Example: Iron interferes above 200 mg/L if a sample volume of 5 ml is used. At a sample volume of 10 ml the interference level decreases to 100 mg/L. Table 3: Interfering substances Interference level using 5 ml of sample Aluminium...
Page 168: Ph Value Lr With Tablet
1.1 Methods pH value LR 5.2 – 6.8 with Tablet 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 169 1.1 Methods Notes: 1. For photometric determination of pH values only use BROMOCRESOLPURPLE tablets in black printed foil pack and marked with PHOTOMETER. 2. pH values below 5.2 and above 6.8 can produce results inside the measuring range. A plausibility test (pH-meter) is recommended. 3.
Page 170: Ph Value With Tablet
1.1 Methods pH value 6.5 – 8.4 with Tablet 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 171 1.1 Methods Notes: 1. For photometric determination of pH values only use PHENOL RED tablets in black printed foil pack and marked with PHOTOMETER. 2. Water samples with low values of Alkalinity-m (below 35 mg/l CaCO ) may give wrong pH readings.
Page 172: Ph Value With Liquid Reagent
1.1 Methods pH value 6.5 – 8.4 with Liquid Reagent 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 173 1.1 Methods Notes: 1. When testing chlorinated water the residual chlorine contents can influence the colour reaction of the liquid reagent. This can be avoided (without interfering with the pH measurement) by adding a small crystal of Sodiumthiosulfate (Na · 5 H O) to the sample before adding the PHENOL RED solution.
Page 174: Ph Value Hr With Tablet
1.1 Methods pH value HR 8.0 – 9.6 with Tablet 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 175 1.1 Methods Notes: 1. For photometric determination of pH values only use THYMOLBLUE tablets in black printed foil pack and marked with PHOTOMETER. 2. pH values below 8.0 and above 9.6 can produce results inside the measuring range. A plausibility test (pH-meter) is recommended. 3.
Page 176: Potassium
1.1 Methods Potassium with Tablet 0.7 – 12 mg/l K 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 177 1.1 Methods Notes: 1. If Potassium is present a cloudy solution will appear. Single particles are not necessarily caused by Potassium. MaxiDirect_2c 03/2010...
Page 178: Silica
1.1 Methods Silica/Silicon dioxide with Tablet 0.05 – 4 mg/l SiO 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 179 1.1 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.
Page 180: Silica Lr Pp
1.1 Methods Silica LR / Silicon dioxide LR with Vario Powder Pack and Liquid Reagent 0.1 – 1.6 mg/l SiO Use two clean vials (24 mm Ø) and mark one as blank for zeroing. 1. Fill each vial with 10 ml of the water sample. 2.
Page 181 1.1 Methods 11. Press ZERO key (blank is already placed in the sample prepare Zero chamber – see point 8). press ZERO Wait for a reaction period of 2 minutes. Countdown 2:00 After the reaction period is finished the zero-reading starts automatically.
Page 182: Silica Hr Pp
1.1 Methods Silica HR / Silicon dioxide HR with Vario Powder Pack 1 – 90 mg/l SiO 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample (Note 1), close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 183 1.1 Methods Notes: 1. Temperature of the sample should be 15°C – 25°C. 2. If Silica or Phosphate is present a yellow colour is developed. 3. In this step any yellow colour due to Phosphate is removed. 4. Interferences: Substance Interference Iron large amounts interfere...
Page 184: Sodium Hypochlorite
1.1 Methods Sodium hypochlorite (Soda bleaching lye) with Tablet 0.2 – 16 % w/w NaOCl Preparation: 1. Fill a 5 ml plastic syringe with the test solution, ensuring that all air bubbles are expelled. Transfer the 5 ml test solution slowly into a 100 ml beaker and dilute to the 100 ml mark with chlorine-free water.
Page 185 1.1 Methods 8. Place the vial in the sample chamber making sure that marks are aligned. Zero accepted prepare Test 9. Press TEST key. press TEST The result is shown in the display in % w/w as availa- ble chlorine present in the original sample of Sodium hypochlorite.
Page 186: Sulfate With Tablet
1.1 Methods Sulfate with Tablet 5 – 100 mg/l SO 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 187 1.1 Methods Notes: 1. If Sulfate is present a cloudy solution will appear. MaxiDirect_2c 03/2010...
Page 188: Sulfate (Powder Pack)
1.1 Methods Sulfate with Vario Powder Pack 5 – 100 mg/l SO 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 189 1.1 Methods Note: 1. If Sulfate ions are present a cloudy solution will appear. MaxiDirect_2c 03/2010...
Page 190: Sulfide
1.1 Methods Sulfide with Tablet 0.04 – 0.5 mg/l S 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 191 1.1 Methods Notes: 1. The tablets must be added in the correct sequence. 2. Chlorine and other 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.
Page 192: Sulfite
1.1 Methods Sulfite with Tablet 0.1 – 5 mg/l SO 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 193 1.1 Methods Notes: MaxiDirect_2c 03/2010...
Page 194: Suspended Solids
1.1 Methods Suspended Solids 0 – 750 mg/l TSS Sample preparation: Blend approx. 500 ml of the water sample in a blender at high speed for 2 minutes. 1. Fill a clean vial (24 mm Ø) with 10 ml of deionised water, close tightly with the cap.
Page 195 1.1 Methods Note: 1. The photometric determination of Suspended Solids is based on a gravimetric method. In a lab this is usually done by evaporation of the filter residue of a filtrated water sample in an oven at 103°C – 105°C and weighing of the dried residue. 2.
Page 196: Turbidity
1.1 Methods Turbidity 0 – 1000 FAU 1. Fill a clean vial (24 mm Ø) with 10 ml of deionised water, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned. prepare Zero 3.
Page 197 1.1 Methods Note: 1. This test uses an attenuated radiation method for the reading of FAU (Formazin Attenuation Units). The results can not be used for USEPA reporting purposes, but may be used for routine measurements. The attenuated radiation method is different from the Nephelometric method.
Page 198: Urea
1.1 Methods Urea with Tablet and Liquid Reagent 0.1 – 2.5 mg/l (NH CO / mg/l Urea 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample, close tightly with the cap. 2. Place the vial in the sample chamber making sure that marks are aligned.
Page 199 1.1 Methods 12. Close the vial tightly with the cap and swirl several times until the tablets are dissolved. 13. Place the vial in the sample chamber making sure that marks are aligned. Zero accepted prepare Test press TEST 14. Press TEST key. Wait for a reaction period of 10 minutes.
Page 200: Zinc
1.1 Methods Zinc with Tablet 0.02 – 1 mg/l Zn 1. Fill a clean vial (24 mm Ø) with 10 ml of the water sample. 2. Add one COPPER / ZINC LR tablet straight from the foil to the water sample, crush the tablet using a clean stirring rod.
Page 201 1.1 Methods Notes: 1. The tablets must be added in the correct 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.
Page 202: Important Notes
1.2 Important notes 1.2.1 Correct use of reagents The reagents must be added in the correct sequence. Tablet reagents: The tablet reagents should be added to the water 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.
Page 203: Cleaning Of Vials And Accessories For Analysis
1.2.2 Cleaning of vials and accessories for analysis Vials, caps and stirring rods should be cleaned thoroughly after each analysis to prevent interferences. Procedure: Clean vials and accessories after each analysis as soon as possible. a. Clean vials and accessories with laboratory detergent (e.g.
Page 204 5. Always perform zeroing and test with closed vial cap. Only use cap with sealing ring. 6. Bubbles on the inside wall of the vial lead to incorrect measurements. To prevent this, remove the bubbles by swirling the vial before performing the test. 7.
Page 205: Sample Dilution Techniques
1.2.4 Sample dilution techniques Proceed as follows for accurate dilutions: Pipette the water sample (see table) into a 100 ml volumetric flask and fill up to 100 ml mark with deionised water. Swirl to mix the contents. Water sample Multiplication [ml] factor Pipette the required volume of the diluted sample into the vial and proceed as described in...
Page 206 MaxiDirect_2c 03/2010...
Page 207: Part 2 Instrument Manual
Part 2 Instrument Manual MaxiDirect_2c 03/2010...
Page 208: Operation
2.1 Operation 2.1.1 Set up Before working with the photometer insert the batteries (delivery contents). See chapter 2.1.2 Saving data – Important Notes, 2.1.3 Replacement of batteries. Before using the photometer perform the following settings in the Mode-Menu: • MODE 10: select language •...
Page 209: Instrument (Explosion Drawing)
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 (B) battery compartment cover (E) seal ring (F) instrument back (A) screws (C) notch (D) batteries CAUTION: To ensure that the instrument is water proof: seal ring (E) must be in position •...
Page 210 MaxiDirect_2c 03/2010...
Page 211: Overview Of Function Keys
2.2 Overview of function keys 2.2.1 Overview Switching the photometer on or off Press shift key to achieve figures key 0-9. Keep the shift key depressed and press desired figures key. Shift e.g.: [Shift] + [1][1] Returning to 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...
Page 212: Displaying Time And Date
2.2.2 Displaying time and date: Press [“clock”] key. 19:30:22 2009-06-15 The display shows: After 15 seconds the photometer reverts to the previous display automatically or press [ ] key or [ESC]. 2.2.3 User countdown With this function the operator is able to define his own countdown. Press [“clock”] key.
Page 213: Operation Mode
2.3 Operation mode Switch the photometer on by pressing the [ON/OFF] key. selftest ... The photometer performs an electronic self-test. 2.3.1 Automatic switch off The instrument switches off automatically after 20 minutes. This is indicated 30 seconds before by a beeper. Press any key to avoid the instrument switching off. As long as the instrument is working (for example countdown or printing) the automatic switch off is inactive.
Page 214: Chemical Species Information
2.3.2.2 Chemical Species Information Pressing the [F2] key the display shows a list with available chemical species and corresponding ranges. Changing chemical species see chapter 2.3.7 page 214. 320 Phosphate LR T Line 1: Method number, Method name 0.05-4 mg/l PO Line 2: Range with chemical species 1 0.02-1.3 mg/l P Line 3: Range with chemical species 2...
Page 215: Performing Tests
2.3.5 Performing Tests When zero calibration is complete, remove the vial from the sample chamber and perform the tests as described under “Method“. When the results have been displayed: - with some methods you can change between different chemical species - you can store and/or print out the results - perform further analysis with the same zero - select a new method...
Page 216: Changing Chemical Species
2.3.7 Changing chemical species For some methods there is a possibility to change the chemical species of the test result. If the test result is displayed press arrow key [ ] or [ ]. Example: 320 Phosphate LR T -----[ ]----> 320 Phosphate LR T <---- [ ] ----- 320 Phosphate LR T 0.05-4 mg/l PO 0.02-1.3 mg/l P...
Page 217: Printing Results (Infra-Red Interface Module) (Optional)
Note: The display shows the number of free data sets. Storage: 900 free records left If there are less than 30 data sets free the display shows: Storage: only 29 free records left Clear the memory as soon as possible (see “Deleting stored results”).
Page 218: Selecting A New Method
2.3.11 Selecting a new method Press [ESC] key to return to method selection. Or enter the required method number directly, e.g. [Shift] + [1][6][0] for Cyanuric acid. Confirm with [ ] key. 2.3.12 Measure absorbance Range: –2600 mAbs to +2600 mAbs Method-No.
Page 219: Photometer Settings: Table Of Mode Functions
2.4 Photometer settings: Table of Mode Functions MODE-Function No. Description Page Calibration Special method calibration Clear calibration Deleting user calibration Clock Setting date and time Countdown Switching the countdown on/off to ensure reaction times Delete data Deleting all stored results Key beep Switching the acoustic signal on/off to indicate key- pressing...
Page 220: Blank Because Of Technical Requirements
User concentration Entering the data necessary to run a user concentration method User polynoms Entering the data necessary to run a user polynomial User methods clear Delete all data of a user polynomial or of a concentration method User methods print Print out all data stored with mode 64 (concentration) or mode 65 (polynomial) User methods init...
Page 221: Setting Date And Time
Key beep Press [MODE], [Shift] + [1][1] keys. Mode Confirm with [ ] key. The display shows: <Key-Beep> ON: 1 OFF: 0 • Press [Shift] + [0] keys to switch the key beep off. • Press [Shift] + [1] keys to switch the key beep on. Confirm with [ ] key.
Page 222 Countdown (Ensuring reaction periods) Some methods require a reaction period. This reaction period is incorporated in the method as standard with the countdown function. It is possible to switch the countdown off for all methods: Press [MODE], [Shift] + [1][3] keys. Mode Confirm with [ ] key.
Page 223 Signal beep Performing a zero or a measurement takes 8 seconds. The photometer indicates the end of zeroing or measuring by a short beep. Press [MODE], [Shift] + [1][4] keys. Mode Confirm with [ ] key. <Signal-Beep> The display shows: ON: 1 OFF: 0 •...
Page 224: Printing Of Stored Results
2.4.3 Printing of stored results Printing all results Press [MODE], [Shift] + [2][0] keys. Mode Confirm with [ ] key. <Print> The display shows: Print all Data Start: cancel: Press [ ] key for printing out all stored test results. Test No.: The display shows e.g.: After printing the photometer goes back to <Mode-Menu>...
Page 225 Printing results of a selected time period Press [MODE], [Shift] + [2][1] keys. Mode Confirm with [ ] key. The display shows: <Print> sorted: date from yy-mm-dd Enter year, month and day for the first day of the required __-__-__ period, e.g.: 14 May 2009 = [Shift] + [0][9][0][5][1][4] Confirm with [ ] key.
Page 226 Printing results of a selected Code No. range Press [MODE], [Shift] + [2][2] keys. Mode Confirm with [ ] key. <Print> The display shows: sorted: Code-No. Enter numeric code number (up to 6 places) for the first from _ _ _ _ _ _ required Code No., e.g.: [Shift] + [1].
Page 227 Printing results of one selected method Press [MODE], [Shift] + [2][3] keys. Mode Confirm with [ ] key. The display shows: <Print> >>20 Acid demand 30 Alkalinity-tot Select the required method from the displayed list or enter 40 Aluminium T the method-number directly.
Page 228 Printing Parameter Press [MODE], [Shift] + [2][9] keys. Mode Confirm with [ ] key. <printing parameter> 1: Flow control The display shows: 2: Baud rate cancel: Press [Shift] + [1] keys to select ”Flow control”. <Flow Control> is: Xon/Xoff The display shows: select: [ ] [ ] save:...
Page 229: Recall / Delete Stored Results
Press arrow key [ ] or [ ] to select the required baud rate. (1200, 2400, 4800, 9600, 14400, 19200) Confirm with [ ] key. End with [ESC] key. Back to Mode Menu with [ESC] key. Back to method selection with [ESC] key. 2.4.4 Recall / delete stored results Recall all stored results Press [MODE], [Shift] + [3][0] keys.
Page 230 Recall results of a selected time period Press [MODE], [Shift] + [3][1] keys. Mode Confirm with [ ] key. The display shows: <Storage> sorted: date from yy-mm-dd Enter year, month and day for the first day of the required __-__-__ period, e.g.: 14 May 2009 = [Shift] + [0][9][0][5][1][4] Confirm with [ ] key.
Page 231 Recall results of a selected Code No. range Press [MODE], [Shift] + [3][2] keys. Mode Confirm with [ ] key. <Storage> The display shows: sorted: Code-No. from _ _ _ _ _ _ Enter numeric code number (up to 6 places) for the first required Code No., e.g.: [Shift] + [1].
Page 232 Recall results of one selected method Press [MODE], [Shift] + [3][3] keys. Mode Confirm with [ ] key. <Storage> The display shows: >>20 Acid demand 30 Alkalinity-tot Select the required method from the displayed list or enter 40 Aluminium T the method number directly.
Page 233 Delete stored results Press [MODE], [Shift] + [3][4] keys. Mode Confirm with [ ] key. <Delete data> The display shows: Delete all data? YES : 1 NO : 0 • Press [Shift] + [0] keys to retain the data sets in me- mory.
Page 234: Calibration
2.4.5 Calibration Calcium Hardness Method 191 – Calibration of a method blank Press [MODE], [Shift] + [4] [0] keys. Mode Confirm with [ ] key. <Calibration> 1: M191 Ca-Hardness 2 The display shows: 2: M191 0 Jus. Reset 3: M170 Fluoride L Press [Shift] + [1] keys.
Page 235 After the reaction period is finished proceed as follows: 9. Rinse the vial (24 mm Ø) with the coloured sample from the beaker and fill with 10 ml of the sample. prepare TEST 10. Press TEST key. press TEST stored The batch related method blank is saved.
Page 236 Press [Shift] + [0] keys to keep the method blank. Press [Shift] + [1] keys to erase the method blank and set the value back to factory calibration. The instrument goes back to mode menu automatically. Fluoride Method 170 Press [MODE], [Shift] + [4] [0] keys. Mode Confirm with [ ] key.
Page 237 7. Place the vial in the sample chamber making sure that marks are aligned. Zero accepted 8. Press TEST key. T1: 0 mg/l F press TEST 9. Remove the vial from the sample chamber, empty the vial, rinse vial and cap several times and then fill the vial with exactly 10 ml Fluoride standard (Concentration 1 mg/l F).
Page 238: User Calibration
User Calibration If a test method is user calibrated the method name is displayed inverse. Procedure: • Prepare a standard of known concentration and use this standard instead of the sample according to the test procedure. • It is recommend to use well known standards which are formulated according to DIN EN, ASTM or other international norms or to use certified standards which are commercially available.
Page 239 Method Recommended range for user calibration COD LR 100 mg/l O COD MR 500 mg/l O COD HR 5 g/l O = 5000 mg/lO Colour operating range Copper T 0.5 – 1.5 mg/l Cu Copper PP 0.5 – 1.5 mg/l Cu Cyanide 0.1 –...
Page 240 Method Recommended range for user calibration Phosphate, ortho PP 0.1 – 2 mg/l PO Phosphate, ortho TT 3 mg/l PO Phosphate 1, ortho C 20 – 30 mg/l PO Phosphate 2, ortho C 1 – 3 mg/l PO Phosphate, total TT 0.3 –...
Page 241 Store user calibration 100 Chlorine T Perform the required method as described in the manual 0.02-6 mg/l Cl2 using a standard of known concentration instead of the 0.90 mg/l free Cl2 water sample. If the test result is displayed press [MODE], [Shift] + [4] [5] Mode keys and confirm with [ ] key.
Page 242 Delete user calibration This chapter only applies for methods which can be user calibrated. Chlorine T Select the required method. 0.02-6 mg/l Cl2 Instead of zeroing the instrument press [MODE], [Shift] + prepare ZERO [4][6] keys and confirm with [ ] key. press ZERO Mode The display shows:...
Page 243: Lab Function
2.4.6 Lab function Reduced operator guidance => “Profi-Mode“ This function may be used for routine analyses with many samples of one method. The following information is always stored in the methods: a) Method b) Range c) Date and time d) Differentiation of results e) Detailed operator instruction Compliance with reaction periods If the Profi-Mode is active, the photometer provides only a minimum of operator instructions.
Page 244: User Operations
2.4.7 User operations User method list After switching on the instrument a scroll list of all available methods is automatically shown in the display. To shorten this list according to the requirements of the user it is possible to create a user defined scroll list. The program structure requires that this list must have at least one active (switched on) method.
Page 245 User method list, switch all methods on This mode function activates all methods. After switching on the instrument a scroll list of all available methods is automatically shown in the display. Press [MODE], [Shift] + [6][1] keys. Mode Confirm with [ ] key. <Mlist all on>...
Page 246 User Concentration Methods It is possible to enter and store up to 10 User Concentration Methods. Therefor you need 2 to 14 standards of known concentration and one blank (deionised water or reagent blank value). The Standards should be measured with increasing concentrations and from the brightest to the darkest colouration.
Page 247 Press the appropriate numerical key to select the required choose resolution resolution, e.g.: [Shift] + [3] for 0.01. 1: 1 2: 0.1 Note: 3: 0.01 Please enter the required resolution according to the in- 4: 0.001 strument pre-sets: range max. resolutions 0.000 ...9.999 0.001 10.00 ...99.99...
Page 248 Prepare the second standard and press [Test] key. S2: 0.10 mg/l prepare The display shows the input value and the measured absorp- press TEST tion value. Confirm with [ ] key. S2: 0.10 mg/l Note: mAbs: • Perform as described above to measure further stan- dards.
Page 249 Confirm with [ ] key. Note: Overwrite polynom? if the entered number has already been used to save a YES: 1, NO: 0 polynomial the display shows the query: • Press [Shift] + [0] or [ESC] keys to go back to method no. query.
Page 250 Press [ ] or [ ] keys to select the required unit. choose unit: >> mg/l mmol/l mAbs µg/l Confirm with [ ] key. choose resolution Press the appropriate numerical key to select the required 1: 1 resolution, e.g.: [Shift] + [3] for 0.01. 2: 0.1 3: 0.01 Note:...
Page 251 Delete User Methods (Polynomial or Concentration) In principle a valid user method can be overwritten. An existing user method (Polynomial or Concentration) can be totally deleted as well and is removed out of the method selection list: Press [MODE], [Shift] + [6][6] keys. Mode Confirm with [ ] key.
Page 252 Print Data of User Methods (Polynomials & Concentration) With this Mode function all data (e.g. wavelength, unit ...) of stored user polynomials and concentration methods can be printed out or transferred with HyperTerminal to a PC. Press [MODE], [Shift] + [6][7] keys. Mode Confirm with [ ] key.
Page 253 Initialise User Method System (Polynomials & Concentration) Power loss will cause incoherent data. The user method system must be initialised with this mode function to set it to a predefined state. ATTENTION: All stored user methods (polynomial & concentration) are deleted with initialisation. Press [MODE], [Shift] + [6][9] keys.
Page 254: Special Functions
2.4.8 Special functions Langelier Saturation Index (Water Balance) For calculation the following tests are required: • pH-value • Temperature • Calcium hardness • Total Alkalinity • TDS (Total Dissolved Solids) Run each test separately and note the results. Calculate the Langelier Saturation Index as described: Calculation of Langelier Saturation Index With Mode 71 (see below) it is possible to select between degree Celsius or degree Fahrenheit.
Page 255 pH value The display shows: 0<=pH<=12 +_ _ _ _ Enter the pH-value in the range between 0 and 12 and confirm with [ ] key. <Langelier> Langelier The display shows the Langelier Saturation Index. saturation index 0.00 Press [ ] key to start new calculation. Return to mode menu by pressing [ESC] key.
Page 256: Instrument Basic Settings 2
2.4.9 Instrument basic settings 2 Adjusting display contrast Press [MODE], [Shift] + [8][0] keys. Mode Confirm with [ ] key. <LCD contrast> The display shows: • Press arrow key [ ] to increase contrast of the LCD display. • Press arrow key [ ] to decrease contrast of the LCD display.
Page 257: Data Transfer
2.5 Data transfer To print data or to transmit to a PC the optional IRIM (Infra-Red Interface Module) is required. 2.5.1 Data Printing Besides the IRIM module the following printer is required to print data directly using the USB Interface of the module: HP Deskjet 6940. 2.5.2 Data transfer to a personal computer Besides the IRIM a transfer program, is required to transmit test results.
Page 258 MaxiDirect_2c 03/2010...
Page 259: Part 3 Enclosure
Part 3 Enclosure MaxiDirect_2c 03/2010...
Page 260: Unpacking
3.1 Unpacking Carefully inspect all items to ensure that every part of the list below is present and no visible damage has occurred during shipment. If there is any damage or something is missing, please contact your local distributor immediately. 3.2 Delivery contents Standard contents for MaxiDirect: 1 Photometer in plastic case...
Page 261: Technical Data
3.4 Technical data Display Graphic Display Serial Interface IR interface for data transfer RJ45 connector for internet updates (see chapter 2.5.3) Light source light-emitting diode – photosensor – pair arrangement in a transparent measurement chamber Wavelength ranges: 1 = 530 nm IF = 5 nm 2 = 560 nm IF = 5 nm...
Page 262: Abbreviations
3.5 Abbreviations Abbreviation Definition °C degree Celsius (Centigrade) °F degree Fahrenheit °F = (°C x 1.8) + 32 °dH degree German Hardness °fH degree French hardness °eH degree English Hardness °aH degree American Hardness Absorption unit ( = Extinction E) 1000 mAbs = 1 Abs = 1 A = μg/l...
Page 263: Troubleshooting
3.6 Troubleshooting 3.6.1 Operating messages in the display / error display Display Possible Causes Elimination Overrange reading is exceeding the range if possible dilute sample or use other measuring range water sample is too cloudy filtrate water sample too much light on the photo cell seal on the cap? Repeat measurement with seal on the cap of the vial.
Page 264 Display Possible Causes Elimination The calculation of a value Test procedure correct? (e.g. combined Chlorine) is If not – repeat test not possible Example 1: Example 1 The readings for free and total 0,60 mg/l free Cl Chlorine are different, but comb Cl considering the tolerances of 0,59 mg/l total Cl...
Page 265: General
3.6.2 General Finding Possible Causes Elimination Test result deviates from Chemical species not as Press arrow keys to select the the expected. required. required chemical species. No differentiation: Profi-Mode is switched on. Switch Profi-Mode off with e.g. for the Chlorine test Mode 50.
Page 266: Declaration Of Ce-Conformity
3.7 Declaration of CE-Conformity Name of manufacturer: Tintometer GmbH Schleefstraße 8a 44287 Dortmund Germany declares that this product Product name: MaxiDirect conforms to the following standards: EN 61326:1997 + A1:1998 + A2:2001 + A3:2003 Emission: Devices for class B Immunity: EN 61326:1997 + A1:1998 + A2:2001 + A3:2003 Requirements according to table A1, industrial environment...
Page 267 MaxiDirect_2c 03/2010...
Page 268 Tintometer GmbH The Tintometer Limited Lovibond ® Water Testing Lovibond House / Solar Way Schleefstraße 8-12 Solstice Park / Amesbury, SP4 7SZ 44287 Dortmund Tel.: +44 (0)8452 264654 Tel.: +49 (0)231/94510-0 Fax: +44 (0)1980 625412 Fax: +49 (0)231/94510-20 sales@tintometer.com sales@tintometer.de www.tintometer.com...

Lovibond Maxi Direct Instruction Manual

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