Lamotte COD Plus Colorimeter 1922-EX2 User Manual

•••••••••••••••••••••••••••••••••••••••••••••••CODPLUSColorimeterOPERATOR’SMANUALCODE 1922/1922-EX2

This weighted device is lowered to the sampling depth and allowed to rest atthis depth for a few minutes. The water percolates into the sample chamber

OZONEINDIGO METHOD • CODE 365I-SCQUANTITY CONTENTS CODE15 mL Chlorine Inhibitor3990-E250 mL *Ozone Buffer*3991-K30 mL Indigo Blue Stock Solution3989-G

PROCEDURE - LOW RANGEA. PREPARATION OF HR REAGENTNOTE: The quantity of Indigo Blue Stock solution (3989) supplied willprepare one batch of HR Reagent

PROCEDURE - HIGH RANGEA. PREPARATION OF HR REAGENTNOTE: The quantity of Indigo Blue Stock solution (3989) supplied willprepare one batch of HR Reagent

COD PLUS TEST PROCEDURES 6/02

PHOSPHATE - LOW RANGEASCORBIC ACID REDUCTION METHOD • CODE 3653-SCQUANTITY CONTENTS CODE60 mL *Phosphate Acid Reagent*V-6282-H5 g *Phosphate Reducing

INTERFERENCES: a. No interference from copper, iron, or silicate atconcentrations many times the concentration of sea water.However, high iron concent

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select ALL TESTS (or an

COD PLUS TEST PROCEDURES 6/02

PHOSPHATE - HIGH RANGEVANADOMOLYBDOPHOSPHORIC ACID METHODCODE 3655-SCQUANTITY CONTENTS CODE60 mL *VM Phosphate Reagent*4410-H1 Pipet, 1.0 mL, plastic0

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select ALL TESTS (or an

nAN INTRODUCTION TO COLORIMETRIC ANALYSISMost test substances in water are colorless and undetectable to the human eye.To test for their presence we m

POTASSIUMTETRAPHENYLBORON METHOD • CODE 3639-SCQUANTITY CONTENTS CODE30 mL *Sodium Hydroxide, 1.0N*4004WT-G5 g *Tetraphenylboron Powder*6364-C1 Spoon,

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select ALL TESTS (or an

SILICA - LOW RANGEHETEROPOLY BLUE METHOD • CODE 3664-SCQUANTITY CONTENTS CODE30 mL *Silica Reagent #1*V-4466-G30 mL *Silica Reagent #2*V-4467-G30 mL *

INTERFERENCES: Sulfides and large amounts of iron interfere. Color andturbidity may be removed by standardizing the instrumentwith the original water

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select ALL TESTS (or an

COD PLUS TEST PROCEDURES 6/02

SILICA - HIGH RANGESILICOMOLYBDATE METHOD • CODE 3687-SCQUANTITY CONTENTS CODE30 mL *Silica Reagent #1*V-4466-G30 mL *Silica Reagent #2*V-4467-G15 mL

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select ALL TESTS (or an

SULF ATE - HIGH RANGEBARIUM CHLORIDE METHOD • CODE 3665-SCQUANTITY CONTENTS CODE10 g *Sulfate Reagent*V-6277-D1 Spoon, 0.1 g, plastic0699*WARNING: Rea

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select ALL TESTS (or an

nREAGENT BLANKSome tests will provide greater accuracy if a reagent blank is determined tocompensate for any color or turbidity resulting from the rea

SULFIDE - LOW RANGEMETHYLENE BLUE METHOD • CODE 3654-01-SCQUANTITY CONTENTS CODE2 X 30 mL *Sulfide Reagent A*V-4458-G15 mL *Sulfide Reagent B*V-4459-E

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select ALL TESTS (or an

TANNINTUNGSTO-MOLYBDOPHOSPHORIC ACID METHODCODE 3666-SCQUANTITY CONTENTS CODE30 mL *Tannin Reagent #1*7833-G2 x 60 mL *Tannin Reagent #2*7834-H1 Pipet

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select ALL TESTS (or an

TURBIDITYABSORPTION METHOD • NO REAGENTS REQUIREDTurbidity is a measure of water clarity and is independent of color. Turbidity iscaused by undissolve

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select ALL TESTS (or an

ZINC - LOW RANGEZINCON METHOD • CODE 3667-SCQUANTITY CONTENTS CODE30 mL *Zinc Indicator Solution*6314-G120 mL *Methyl Alcohol*6319-J10 g Sodium Ascorb

INTERFERENCES: The following ions interfere in concentrations greater thanthose listed.Ion mg/L Ion mg/LCd(II) 1 Cr(III) 10Al (III) 5 Ni(II) 20Mn (II)

PROCEDUREA. PREPARATION OF DILUTE ZINC INDICATOR SOLUTION1. Use a pipet (0352) to measure exactly 5.0 mL of *Zinc Indicator Solution(6314) into 10 mL

COD PLUS TEST PROCEDURES 6/02

Below is a list of suggested wavelengths for the color of the reacted samples.Use these as a starting point.SampleColorWavelengthRangeYellow 430Pink 5

•••••••••••••••••••••••••••••••••••••••••••••••CODPLUSColorimeterAPPENDIX

APPENDIXAmmonia in water occurs in two forms: toxic unionized ammonia (NH3) andthe relatively non-toxic ionized form, ammonium ion (NH4+). This testme

FOR EXAMPLE:If a fresh water sample at 20°C has a pH of 8.5 and the test result is 1.0 ppm asTotal Ammonia-Nitrogen:1. The percentage from the table i

5. Plot results on graph paper or computer using any available plottingprogram. If results are as %T versus concentration, semilog graph papermust be

nPREPARING DILUTE STANDARD SOLUTIONSStandard solutions should be prepared to create a calibration curve. Standardsolutions can be prepared by diluting

For example, a 10.0 mL water sample was determined to contain 0.3 ppm iron.To a second 10.0 mL sample, 0.1 mL of 50 ppm iron standard was added. Theco

nINTERFERENCESLaMotte reagent systems are designed to minimize most common interferences.Each individual test instruction discusses interferences uniq

OPERATION OF THECOD PLUS COLORIMETERnOVERVIEWThe COD PLUS Colorimeter is a portable, microprocessor controlled, directreading colorimeter. It has a gr

nCOMPONENTSFigure 1 shows a diagram of the COD PLUS Colorimeter and its components.COD PLUS COLORIMETER 6/02 19SerialNumberBatteryCompartmentRs232Seri

nQUICK STARTSome quick instructions to get into testing.1. Press ON to turn on the COD PLUS. TheLaMotte logo screen will appear for about 2seconds and

8. Insert the reacted sample. Press Q/ENTER toscan sample. The COD PLUS will scan thesample and display the concentration.002 COD SR* Scan Sample9. Af

GENERAL OPERATING PROCEDURESThe operation of the COD PLUS Colorimeter is controlled by amicroprocessor. The microprocessor is programmed with menu dri

nTHE DISPLAY & THE MENUSThe display allows menu selections to be viewed and chosen. These choicesinstruct the colorimeter to perform specific task

The second general format of the display takes advantage of the graphicscapabilities of the display. The top line of the display is still a title line

nLOOPING MENUSLong menus, such as All Tests, incorporate a looping feature which allowthe user to quickly reach the last choice in the menu from the f

TESTINGnTESTING MENUThe Testing Menu is used to run all LaMotte pre-programmed tests, USERTESTS and Absorbance test at two wavelengths. Testing from a

nSEQUENCES OF TESTSSEQUENCE 1, SEQUENCE 2, and SEQUENCE 3 are alterable sequences. Theymay be edited using the Editing Menu. Any of the LaMottepre-pro

nGENERAL TESTING PROCEDURESThe following are some step by step examples of how to run tests from theTesting Menu. These test procedures are designed t

The COD PLUS Colorimeter is ready to scan at thecorrect wavelength. Place the blank in the samplechamber, close the lid and press the Q/ENTERbutton to

TABLE OF CONTENTSGENERAL INFORMATIONPack aging & Delivery ······································································ 5General Precauti

nCALIBRATING LaMOTTE PRE-PROGRAMMED TESTSThe LaMotte Pre-Programmed Tests have been pre-calibrated. Recalibration ofthe pre-programmed tests by the us

A reverse font (dark background with lightcharacters) will appear to indicate that the readingcan be adjusted. Use s or t to scroll to theconcentratio

nMEASURING IN THE ABSORBANCE MODEPress ON to turn on the COD PLUS Colorimeter.The LaMotte logo will appear for about 2 secondsand then the Start scree

Insert blank, press the Q/ENTER button to scanblank.103 Abs 430* Scan BlankThe screen will display Blank Done for about 1second.103 Abs 430Blank Done*

EDITING MENUThe EDITING MENU allows the user to edit sequences, edit user tests, set theclock, edit the logging function, and set the power saving fun

Sequence 1 appears.EDIT SEQUENCE 1*004 Ammonia-NLF005 Ammonia-NLS006 Ammonia-NHnADDING OR DELETING TESTSThere are three ways to alter a sequence: Inse

Press the Q/ENTER button to select 001 COD LR.ALL TESTS* 001 COD LR002 COD SR003 COD HRSequence 1 appears in EDIT SEQUENCE 1 menuand 001 COD LR is now

Press the t button to scroll to Delete.EDIT SEQUENCE 1* Insert BeforeInsert AfterDeletePress the Q/ENTER button to select Delete.EDIT SEQUENCE 1* Dele

nEDIT USER TESTSIf a test other than the LaMotte programmed tests is performed regularly, acalibration for it may be entered in one of the 10 User Tes

nNAMING THE TESTA User Test can be up to 11 characters long. The menu choices for eachcharacter are 26 upper case letters A to Z, 26 lower case letter

TABLE OF CONTENTS (cont.)EDITING MENUEdit a Sequence ·············································································· 34Adding or Deleti

The number “2” has been entered in the secondposition of the name and the cursor has moved tothe third letter “e”.NAME THE TESTe105 H2er Test01Use the

nSELECTING THE VIAL AND WAVELENGTHThe COD PLUS Colorimeter uses three different vials (the 25 mm 0290 tube,UDVs and COD tubes) and 2 different wavelen

nENTERING A NEW CALIBRATIONTo enter a new calibration two reacted standards solutions of knownconcentration are required: a “low standard” and a “high

Place a clear blank in the sample chamber. Press theQ/ENTER button to scan the blank.Insert Blank* ContinueThe screen will display Blank Done for abou

nSELECTING THE NUMERICAL FORMAT OF THE RESULTTo input tests with very different ranges, the number of decimal placesdisplayed for a result can be sele

nSELECTING THE UNITS OF CONCENTRATIONThe COD PLUS Colorimeter has seven options for units of concentration.They are No Units, ppm, pH, FTU, ppb, ppt a

nSETTING THE CLOCKSetting the clock allows the correct time and date stamp to be stored with eachreading in the data logger and with each reading sent

nTURNING THE DATA LOGGER ON AND OFFThe default setting for the datalogger is “Enabled” or turned off. If there is noneed for data logging, this settin

nFACTORY SETUPThe Factory Setup menu is used in the manufacturing of the COD PLUSColorimeter. This menu is not for use by the operator in the field.nS

PC LINKThe COD PLUS Colorimeter may be interfaced with any W indows-basedcomputer by using the LaMotte SMARTLink2 Program and Interface Cable(Order Co

GENERAL INFORMATIONnPACKAGING & DELIVERYExperienced packaging personnel at LaMotte Company assure adequateprotection against normal hazards encoun

MAINTENANCEnCLEANINGClean with a damp, lint-free cloth.DO NOT ALLOW WATER TO ENTER THE COLORIMETERCHAMBER OR ANY OTHER PARTS OF THE METER.TROUBLESHOOT

COD PLUS COLORIMETERREA GENT SYSTEMSnCOD PLUS REAGENT SYSTEMS LISTTest # Test F actor Range(ppm) Test Method (# of Reagents)#ofTests1 COD-Low Range 5-

•••••••••••••••••••••••••••••••••••••••••••••••CODPLUSColorimeterTESTINSTRUCTIONS

COD PLUS COLORIMETERTEST PROCEDURESnTABLE OF CONTENTSCOD - Low RangeCOD - Standard RangeCOD - High RangeAmmonia Nitrogen - Low Range, Fresh WaterAmmon

COD PLUS TEST PROCEDURES 2/04

COD - LOW RANGEMERCURY FREE DIGESTION • CODE 5-0072MERCURY DIGESTION • CODE 5-0075QUANTITY CONTENTS CODE25 *COD Low Range Mercury Free Tubes*5-0072or

INTERFERENCES: Volatile organic compounds are not oxidized to the extentthat they are in the vapor above the digestion solution.Therefore, they do not

PROCEDUREUse COD adapter (see p. 22).1. Homogenize sample if necessary.2. Preheat COD heater block to 150±2°C.3. Remove cap from COD tube vial. Hold v

NOTES:lReagents are light sensitive. Unused reagents should be stored in theshipping container, and in the refrigerator if possible, until needed.lA r

Under no circumstances shall LaMotte Company be liable for loss of life,property, profits, or other damages incurred through the use or misuse of itsp

COD - STAND ARD RANGEMERCURY FREE DIGESTION • CODE 5-0073MERCURY DIGESTION • CODE 5-0076QUANTITY CONTENTS CODE25 *COD Standard Range Mercury Free Tube

INTERFERENCES: Volatile organic compounds are not oxidized to the extentthat they are in the vapor above the digestion solution.Therefore, they do not

PROCEDUREUse COD adapter (see p. 22).1. Homogenize sample if necessary.2. Preheat COD heater block to 150±2°C.3. Remove cap from COD tube vial. Hold v

NOTES:lReagents are light sensitive. Unused reagents should be stored in theshipping container, and in the refrigerator if possible, until needed.lA r

COD - HIGH RANGEMERCURY FREE DIGESTION • CODE 5-0074MERCURY DIGESTION • CODE 5-0077QUANTITY CONTENTS CODE25 *COD High Range Mercury Free Tubes*5-0074o

INTERFERENCES: Volatile organic compounds are not oxidized to the extentthat they are in the vapor above the digestion solution.Therefore, they do not

PROCEDUREUse COD adapter (see p. 22).1. Homogenize sample if necessary.2. Preheat COD heater block to 150±2°C.3. Remove cap from COD tube vial. Hold v

NOTES:lReagents are light sensitive. Unused reagents should be stored in theshipping container, and in the refrigerator if possible, until needed.lA r

AMMONIA-NITROGEN - LOW RANGESALICYLATE METHOD • CODE 3659-01-SCQUANTITY CONTENTS CODE60 mL *Salicylate Ammonia #1*3978-H10 g *Salicylate #2*7457-D5 g

PROCEDURE - FRESH WATER1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select AL

nCONTENTS AND ACCESSORIESnCONTENTSCOD PLUS ColorimeterTest Tubes, with Caps (4)COD AdapterPower Supply, 110V or 220VCOD PLUS Colorimeter ManualnACCESS

PROCEDURE - SAL T WATER1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select AL

AMMONIA-NITROGEN - LOW RANGE 2/3 COD PLUS TEST PROCEDURES 2/04

AMMONIA-NITROGEN -HIGH RANGENESSLERIZATION METHOD • CODE 3642-SCQUANTITY CONTENTS CODE30 mL Ammonia Nitrogen Reagent #1V-4797-G2 x 30 mL *Ammonia Nitr

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Scroll to and select AL

BORONAZOMETHINE-H METHOD · CODE 4868QUANTITY CONTENTS CODE120 mL *Boron Buffer *4869 - J10 g *Boron Indicator Powder *4870 - D1 Pipet, plastic, 1.0 mL

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. Press ENTER to start.3. Press ENTER to select Testing Menu.4. Select ALL TESTS (or

COBALTPAN METHOD · CODE 4851QUANTITY CONTENTS CODE60 mL *Cobalt Buffer *4852-H60 mL *Cobalt Indicator Reagent *4853-H30 mL *Stabilizer Solution *4854-

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. Press ENTER to start.3. Press ENTER to select TESTING MENU.4. Select All Tests (or

COLORPLATINUM COBALT METHOD · NO REAGENTS REQUIREDColor in water may be attributed to humus, peat, plankton, vegetation, andnatural metallic ions, suc

COD PLUS TEST PROCEDURES 6/02

nCE COMPLIANCEThe COD PLUS Colorimeter has earned the European CE Mark ofCompliance for electromagnetic compatibility and safety.8 COD PLUS COLORIMETE

COPPERCUPRIZONE METHOD • CODE 4023QUANTITY CONTENTS CODE15 mL Copper AP-6367-E15 mL *Copper BP-6368-E*WARNING: Reagents marked with * are considered h

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select ALL TESTS (or an

COPPERDIETHYLDITHIOCARBAMATE METHOD • CODE 3646-SCQUANTITY CONTENTS CODE15 mL *Copper 1*6446-E*WARNING: Reagents marked with * are considered hazardou

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select ALL TESTS (or an

CYANURIC ACIDMELAMINE METHOD - TURBIDITY • CODE 366I-SCQUANTITY CONTENTS CODE2 x 250 mL *Cyanuric Acid Test Solution*4856-K1 Syringe, 5 mL0807*WARNING

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select ALL TESTS (or an

DISSOLVED OXYGENWINKLER COLORIMETRIC METHOD • CODE 3688-SCQUANTITY CONTENTS CODE30 mL *Manganese Sulfate Solution*4167-G30 mL *Alkaline Potassium Iodi

COLLECTION & TREATMENT OF THE WATER SAMPLESteps 1 through 4 below describe proper sampling technique in shallow water.For sample collection at dep

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select ALL TESTS (or an

COD PLUS TEST PROCEDURES 6/02

CHEMICAL TESTINGnWATER SAMPLING FOR CHEMICAL ANALYSISnTaking Representative SamplesThe underlying factor to be considered for any type of water sampli

FLUORIDESPADNS METHOD • CODE 3647-SC-01QUANTITY CONTENTS CODE4 x 30 mL *Acid-Zirconyl-SPADNS Reagent*3875-G60 mL *Sodium Arsenite Solution*4128-H1 Pip

INTERFERENCES: The following substances produce a positive interference atthe concentration given:Chloride (Cl–) 7000 mg/LPhosphate (PO4–3) 16 mg/LHex

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select ALL TESTS (or an

COD PLUS TEST PROCEDURES 6/02

HYDRAZINEp-DIMETHYLAMINOBENZALDEHYDE METHODCODE 3656-SCQUANTITY CONTENTS CODE2x60 mL *Hydrazine Reagent A*4841-H10 g *Hydrazine Reagent B Powder*4842-

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select ALL TESTS (or an

MOLYBDENUM - HIGH RANGETHIOGLYCOLATE METHOD • CODE 3699-02-SCQUANTITY CONTENTS CODE2 x 30 mL *Mo Buffer*3997-G2 x 30 mL *Molybdenum Oxidizing Reagent*

PROCEDURE1. Press and hold ON button until colorimeter turns on.2. PressENTER to start.3. PressENTER to select TESTING MENU.4. Select ALL TESTS (or an

NICKELDIMETHYLGLYOXIME METHOD • CODE 3663-SCQUANTITY CONTENTS CODE60 mL *Hydrochloric Acid, 2.5N*6251PS-H30 g *Ammonium Persulfate Reagent*6566-G30 mL

PROCEDURE1. Use the 10 mL graduated cylinder (0416) to measure 10 mL of samplewater. Pour into glass test tube (0608).2. Use the 1 mL pipet (0354) to