Related Manuals for Grundfos DIT
Summary of Contents for Grundfos DIT
- Page 1 GRUNDFOS ALLDOS INSTRUCTIONS Photometer Installation and operating instructions...
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Page 2: Declaration Of Conformity
Declaration of Conformity We Grundfos Alldos declare under our sole responsibility that the product DIT, to which this declaration relates, is in conformity with the Council Directives on the approximation of the laws of the EC Member States relating to —... -
Page 3: Table Of Contents
Operation Switching on and switching off 2. General information Operating buttons These installation and operating instructions contain all Overview of functions information important for users of the DIT Compact Photometers: Configuration of the instrument • technical data Photometrical measuring •... -
Page 4: Identification
Do not dismantle the instrument components! Cleaning, maintenance and repair must only be 3.2 Type key carried out by authorised personnel! If safe operation cannot be ensured any longer, the DIT Compact Example: DIT -B C -PT GEF G Photometer is to be put out of service and safeguarded against unintentional operation. -
Page 5: Construction And Function
6. Construction and function 6.1 Construction of the instrument The DIT-N and DIT-B versions are powered by a 9 V monoblock battery. For the S version, a rechargeable accumulator is used. The multilingual plain-text display offers high operation convenience. The user can choose English, German, French, Dutch or Danish language (depending on software version). -
Page 6: Functional Principle
Fig. 3 6.3 Functioning of the electrochemical pH 6.4 Functioning of the electrochemical determination determination and temperature measuring (DIT-S) of the redox potential (DIT-S) A single-rod electrode can be connected for electrochemical The redox potential can be measured by using a single-rod redox measuring of the pH value. -
Page 7: Technical Data
6.5.2 Electrochemical measuring (only DIT-S) 6.6.1 DIT-N/DIT-B pH measuring 9 V monoblock battery, indication of Power supply battery exchange Measuring range 0-14 pH Weight About 600 g incl. battery Resolution 0.01 pH Automatic Accuracy ± 0.03 pH switching-off After 45 seconds... -
Page 8: Printer Interface
8.1 Switching on and switching off In connection with photometrical measuring, the [Esc] button Press any button to switch on the DIT. leads back to the menu of the selected parameter (in the first The instrument is designed with energy-saving CMOS menu level). - Page 9 Main menu First menu level Second menu level Third menu level photom. reference aluminium measure blanktest <other zerocheck parameters> cancel cancel pH *) measure ALLDOS DIN/NIST others cancel config °C / °F auto off cal data cancel cancel measure redox *) configure auto off cancel...
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Page 10: Configuration Of The Instrument
This is necessary after battery changes. exchange (DIT-N/DIT-B) or after the accumulator has been totally discharged (DIT-S). unit The time shown in the display will be different from this example, ->... - Page 11 The functions described below are only available -> Note for the DIT-S. In the configuration menu, the menu item "document." is used for print configuring the serial interface and to decide if the results will be stored, printed or deleted.
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Page 12: Photometrical Measuring
Confirm both operations by measurements! Clean the vial hole carefully with a dry and pressing [OK], and the DIT does a quick checking of the zero soft cloth. value. After measuring, the result is displayed in extinction units (dgt). -
Page 13: Aluminium
9.3.3 Blank test 9.4 Aluminium For some parameters an additional blank test is necessary, as the Reaction of Al with Chromazurol-S in reagents have a certain inherent colour, which occurs even if Determination weakly acetate-buffered medium with there is no co-reactant at all. The zero value described above is method production of a red-violet colorant based upon the characteristics of the system "photometer, vial... -
Page 14: Ammonium
9.5 Ammonium 9.6 Free chlorine, total chlorine and combined chlorine Reaction of ammonium with hypochlorite Determination via monochloroamine with thymole to a Oxidation of dialkyl-p-phenylenediamine method blue indophenole Determination by chlorine, HOCl and OCl, producing a method red-violet substance of the "Wurster's red" Measuring range 0.2 to 3.0 mg/l NH type... -
Page 15: Chloride
9.6.2 Total chlorine and combined chlorine determination 9.7 Chloride 1. Select "photom." in the main menu, and press [OK]. Mercury(II) ions form undissociated 2. Select "Cl2 total", and press [OK]. mercury(II) chloride when combined with 3. Select "measure", and press [OK]. chloride ions. -
Page 16: Chlorine Dioxide
9.8 Chlorine dioxide 9.9 Determination of chlorine dioxide, free chlorine, total chlorine and chlorite within the chlorine Oxidation of dialkyl-p-phenylenediamine dioxide determination Determination by chlorine dioxide, producing a red-violet method substance of the "Wurster's red" type The chlorine reagent set and the additional reagents ClO -1 and ClO -2 are required for the... -
Page 17: Chromium
9.9.3 Total chlorine determination 9.10 Chromium 1. Select "photom." in the main menu, and press [OK]. Chromate ions and dichromate ions are 2. Select "ClO2", and press [OK]. reduced by diphenylcarbazide to 3. Select "measure", and press [OK]. Determination chromium(III) ions, producing a red-violet 4. -
Page 18: Cyanide
9.11 Cyanide 9.12 Cyanuric acid After adding CN reagent 1, chlorine is set After setting a certain pH value, a free which reacts with cyanide ions to precipitation reaction takes place. The Determination chlorine cyane. This reacts with pyridine to opaqueness caused by this is proportional Determination method... -
Page 19: Iron
9.13 Iron 9.14 Fluoride Iron(III) ions are reduced to iron(II) ions. Fluoride determination is executed The iron(II) ions react with 2,4,6-tri-2- according to the SPADNS method. Determination pyridyl-1,3,5-triazine in an acetate- Fluoride reacts with a red zirconium method Determination buffered solution producing a blue colourant. -
Page 20: Hydrazine
9.15 Hydrazine 9.16 Manganese Hydrazine reacts with 4-(dimethylamino)- Reaction of manganese(II) ions with Determination benzaldehyde in an acid solution to yellow Determination formaldoxime in the presence of method 4-(dimethylamino)-benzaldehydrazine method atmospheric oxygen, producing a red- brown colourant complex Measuring range 0.05 to 3.0 mg/l N Measuring range 0.05 to 4.0 mg/l Mn... -
Page 21: Nickel
9.17 Nickel 9.18 Nitrate Reaction of nickel with dimethylglyoxime Using a suitable reduction mixture, nitrate Determination in an alkaline-oxidising medium, Determination is reduced to nitrite. Nitrite diazotizes an method producing a red-brown colourant complex method aromatic compound, which then reacts with a second reagent to an azo dye Measuring range 0.05 to 4.0 mg/l Ni... -
Page 22: Nitrite
9.19 Nitrite 9.20 Ozone (in absence of chlorine) Determination Reaction of nitrite with sulfanilic acid and Oxidation of dialkyl-p-phenylendiamine by Determination method naphthylethylenamine to a red azo dye ozone, producing a red-violet substance of method the "Wurster's red" type Measuring range 0.02 to 1.0 mg/l NO –... -
Page 23: Ozone In The Presence Of Total Chlorine (Selective Determination)
9.21 Ozone in the presence of total chlorine 9.22 Phosphate (selective determination) Transformation of orthophosphate with If both ozone and (free or combined) chlorine are present in the Determination molybdate ions and following reduction to sample, these two analyses have to be made. First the sum of the method phosphomolybdic blue concentrations of ozone and total chlorine is determined. -
Page 24: Photometrical Determination Of The Ph Value
Select the required menu item using 8.2 Operating reagent set the [Up] and [Down] buttons, and confirm by pressing [OK]. Then the DIT returns to the previous menu. Reagent not for sea-water use! config pH Mind the exact dosing of the reagent as the Note ->... -
Page 25: Calibration
If an electrode with temperature sensor is connected, this step will automatically be If an electrode with temperature sensor is Note skipped. The DIT recognises this by itself and connected, this step will automatically be Note works with the measured temperature. -
Page 26: Redox Measuring
11. Redox measuring 12. Maintenance and repair For measuring the redox potential, only the menu items The DIT is practically maintenance-free. Except from battery "measure", "configure" and "cancel" can be used. As it is a replacing respectively accumulator recharging and external measurement of potential, calibration is not necessary. -
Page 27: Cleaning
1. Use appropriate waste collection services. 2. >parameter< a) Result above Try a new 2. If this is not possible, contact the nearest Grundfos or value measuring range. measurement. Grundfos Alldos company or service workshop. exceed Dilute the sample. - Page 31 Mark GRUNDFOS Ltda. Turkey 20th km. Athinon-Markopoulou Av. 17 Beatrice Tinsley Crescent Av. Humberto de Alencar Castelo Branco, GRUNDFOS POMPA San. ve Tic. Ltd. Sti. P.O. Box 71 North Harbour Industrial Estate Gebze Organize Sanayi Bölgesi GR-19002 Peania Albany, Auckland...
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