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Instruction Manual

HI 83200Multiparameter BenchPhotometerfor Laboratories

www.hannainst.com

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Dear Customer,Thank you for choosing a Hanna product. Please read this instruction manual carefully before using theinstrument. This manual will provide you with the necessary information for thecorrect use of theinstrument. If you need additional technical information, do not hesitate to e-m

ail us at [email protected].

TABLE OF CONTENTS

PRELIMINARY EXAMINATION ............................................. 3GENERAL DESCRIPTION ..................................................... 3ABBREVIATIONS ............................................................... 4SPECIFICATIONS .............................................................. 4PRECISION AND ACCURACY ............................................... 4PRINCIPLE OF OPERATION ................................................ 5

FUNCTIONAL DESCRIPTION ............................................... 6TIPS FOR AN ACCURATE MEASUREMENT ........................... 8HEALTH & SAFETY .......................................................... 11METHOD REFERENCE TABLE ............................................. 11OPERATIONAL GUIDE ....................................................... 12SETUP ........................................................................... 14HELP MODE ................................................................... 16SAMPLE PREPARATION .................................................... 17ALUMINUM .................................................................... 21ALKALINITY ....................................................................

23AMMONIA MR ................................................................ 25AMMONIA LR ................................................................. 27BROMINE ...................................................................... 29CALCIUM .......................................................................31FREE CHLORINE ............................................................. 33TOTAL CHLORINE ............................................................ 36CHLORINE DIOXIDE ......................................................... 39CHROMIUM VI HR .......................................................... 42CHROMIUM VI LR ........................................................... 44

COLOR OF WATER ........................................................... 46COPPER HR .................................................................... 48COPPER LR .................................................................... 50CYANURIC ACID .............................................................. 52FLUORIDE ......................................................................54CALCIUM HARDNESS ....................................................... 56MAGNESIUM HARDNESS ................................................. 59

HYDRAZINE .................................................................... 6

2IODINE .......................................................................... 64

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IRON HR ........................................................................66IRON LR ......................................................................... 68MAGNESIUM .................................................................. 71MANGANESE HR ............................................................. 73MANGANESE LR ............................................................. 75

MOLYBDENUM ............................................................... 78NICKEL HR .....................................................................81NICKEL LR ......................................................................83NITRATE ......................................................................... 86NITRITE HR ....................................................................88NITRITE LR .....................................................................90DISSOLVED OXYGEN ........................................................ 92

OZONE ..........................................................................94pH ................................................................................ 97PHOSPHATE HR .............................................................. 99PHOSPHATE LR ............................................................. 101PHOSPHORUS ............................................................. 103POTASSIUM HR ............................................................ 105POTASSIUM MR ............................................................ 108POTASSIUM LR ............................................................. 110SILICA .........................................................................112SILVER ........................................................................

114SULFATE ...................................................................... 117ZINC ............................................................................ 119ERRORS AND WARNINGS ............................................... 121DATA MANAGEMENT ...................................................... 122STANDARD METHODS .................................................... 123ACCESSORIES .............................................................. 124WARRANTY .................................................................. 127HANNA LITERATURE ...................................................... 127

All rights are reserved. Reproduction in whole or in part is prohibited withoutthe written consent of the copyright owner, HannaInstruments Inc., Woonsocket, Rhode Island, 02895 , USA.

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PRELIMINARY EXAMINATION

Please examine this product carefully. Make sure that the instrument is not damaged. If any damageoccurred during shipment, please notify your local Hanna Office.

Each meter is supplied complete with:

Four Sample Cuvettes and CapsSample Preparation Kit (for turbid or concentrated samples see page 17)Cloth for wiping cuvettes (1 pcs)60 mL glass bottle for dissolved oxygen analysis (1 pcs)

ScissorsAC/DC Power AdapterInstruction ManualThe sample preparation kit contains:4 cuvettes (10 mL) with caps2 plastic beakers (100 and 170 mL)1 graduated cylinder (100 mL)1 syringe with screw rim (60 mL)

1 syringe (5 mL)1 funnel25 filter discs1 spoon2 pipettesCarbon powder packets (50 pcs)1 Demineralizer Bottle with filter cap for about 12 liters of deionized water (depending on thehardness level of water to be treated)Note: Save all packing material until you are sure that the instrument works correctly. Any defective itemmust be returned in its original packing with the supplied accessories.

GENERAL DESCRIPTION

HI 83200 is a multiparameter bench photometer dedicated for Laboratory analysis.It measures 44 different

methods using specific liquid or powder reagents. The amount of reagent is precisely dosed to ensuremaximum reproducibility.

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HI 83200 bench photometer can be connected to a PC via an USB cable. The optional HI 92000Windows Compatible Software helps users manage all their results.HI 83200 has a powerful interactive user support that assists the user during the analysis process.

Each step in the measurement process is help supported. A tutorial mode is available in the Setup Menu.

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ABBREVIATIONSEPA: US Environmental Protection AgencyC: degree CelsiusF: degree Fahrenheitg/L: micrograms per liter (ppb)mg/L: milligrams per liter (ppm)

g/L: grams per liter (ppt)mL: milliliterHR: high rangeMR: medium rangeLR: low rangePAN: 1-(2-pyridylazo)-2-naphtolTPTZ: 2,4,6-tri-(2-pyridyl)-1,3,5-triazineSPECIFICATIONS

Light Life Life of the instrumentLight Detector Silicon PhotocellEnvironment 0 to 50C (32 to 122F);

max 90% RH non-condensingPower Supply external 12 Vdc power adapterbuilt-in rechargeable batteryDimensions 235 x 200 x 110 mm (9.2 x 7.87 x 4.33")Weight 0.9 Kg

For specifications related to each method (e.g. range, resolution, etc.) refer to the related measurementsection.

PRECISION AND ACCURACY

Precision is how closely repeated measurements agreewith each other. Precision is usually expressed asstandard deviation (SD).

Accuracy is defined as the nearness of a test result to

the true value.Although good precision suggests good accuracy, preciseresults can be inaccurate. The figure explains thesedefinitions.

For each method, the accuracy is expressed in therelated measurement section.

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PRINCIPLE OF OPERATION

Absorption of light is a typical phenomenon of interaction between electromagnetic radiation and matter.When a light beam crosses a substance, some of the radiation may be absorbed byatoms, molecules or

crystal lattices.

If pure absorption occurs, the fraction of light absorbed depends both on the optical path length through thematter and on the physical-chemical characteristics of substance according to the Lambert-Beer Law:

-log I/Io = el c d

or

A = el c d

Where:

-log I/Io = Absorbance (A)

Io = intensity of incident light beam

I = intensity of light beam after absorption

el = molar extinction coefficient at wavelength l

c = molar concentration of the substance

d = optical path through the substance

Therefore, the concentration "c" can be calculated from the absorbance of the substance as the other factors

are known.Photometric chemical analysis is based on the possibility to develop an absorbing compound from a specificchemical reaction between sample and reagents.

Given that the absorption of a compound strictly depends on the wavelength of the incident light beam,a narrow spectral bandwidth should be selected as well as a proper central wavel

ength to optimizemeasurements.

The optical system of HI 83200 is based on special subminiature tungsten lamps and narrow-bandinterference filters to guarantee both high performance and reliable results.Five measuring channels allow a wide range of tests.

Instrument block diagram (optical layout)

A microprocessor controlled special tungsten lamp emits radiation which is firstoptically conditioned and beamedthrough the sample contained in the cuvette. The optical path is fixed by the di

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ameter of the cuvette. Thenthe light is spectrally filtered to a narrow spectral bandwidth, to obtain a light beam of intensity I o or I.

The photoelectric cell collects the radiation I that is not absorbed by the sample and converts it into an

electric current, producing a potential in the mV range.The microprocessor uses this potential to convert the incoming value into the desired measuring unit and todisplay it on the LCD.

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The measurement process is carried out in two phases: first the meter is zeroedand then the actual

measurement is performed.The cuvette has a very important role because it is an optical element and thusrequires particular attention. It

is important that both the measurement and the calibration (zeroing) cuvette areoptically identical to provide thesame measurement conditions. Most methods use the same cuvette for both, so it is important that measurementsare taken at the same optical point. The instrument and the cuvette cap have special marks that must bealigned in order to obtain better reproducibility.

The surface of the cuvette must be clean and not scratched. This is to avoid measurement interference due to

unwanted reflection and absorption of light. It is recommended not to touch the

cuvette walls with hands.Furthermore, in order to maintain the same conditions during the zeroing and themeasurement phases,it is necessary to cap the cuvette to prevent any contamination.

FUNCTIONAL DESCRIPTION

INSTRUMENT DESCRIPTION

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1) Open Cuvette Lid2) Indexing mark3) Cuvette point4) Liquid Crystal Display (LCD)5) Splash proof keypad6) ON/OFF power switch

7) Power input connector8) USB connector

KEYPAD DESCRIPTION

The keypad contains 8 direct keys and 3 functional keys with the following functions:

Press to perform the function displayed above it on the LCD.

RCLHELPSETUPESC

Press to exit the current screen.

Press to access the select method menu.

Press to move up in a menu or a help screen, to increment a set value, to accesssecond levelfunctions.

Press to move down in a menu or a help screen, to decrement a set value, to access second

level functions.Press to log the current reading.Press to recall the log.Press to display the help screen.Press to access the setup screen.

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Proper use of the powder reagent packet:(a) use scissors to open the powder packet;(b) push the edges of the packet to form a spout;(c)pour out the content of the packet.

USING CUVETTES

Proper mixing is very important for reproducibility of the measurements. The right way of mixing acuvette is specified for each method in the related chapter.(a)invert the cuvette a couple of times or for a specified time: hold the cuvette in the vertical position. Turnthe cuvette upside-down and wait for all of the solution to flow to the cap end,then return the cuvetteto the upright vertical position and wait for all of the solution to flow to the

cuvette bottom. This is oneinversion. The correct speed for this mixing technique is 10-15 complete inversions in 30 seconds.This mixing technique is indicated with invert to mixand the following icon:

(b)shaking the cuvette, moving the cuvette up and down. The movement may be gentleor vigorous.This mixing method is indicated with shake gentlyor shake vigorously, and one of the followingicons:

shake gently shake vigorously

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10Pay attention to push the cuvette completely down in the holder and to align thewhite point on thecap to the indexing mark on the meter.In order to avoid reagent leaking and to obtain more accuratemeasurements, close the cuvette first with the supplied HDPE plastic

stopper and then the black cap.Each time the cuvette is used, the cap must be tightened to the same degree.Whenever the cuvette is placed into the measurement cell, it must be dryoutside, and free of fingerprints, oil or dirt. Wipe it thoroughly withHI 731318 or a lint-free cloth prior to insertion.Shaking the cuvette can generate bubbles in the sample, causing higherreadings. To obtain accurate measurements, remove such bubbles byswirling or by gently tapping the cuvette.Do not let the reacted sample stand too long after reagent is added. Forbest accuracy, respect the timings described in each specific method.It is possible to take multiple readings in a row, but it is recommendedto take a new zero reading for each sample and to use the same cuvette

for zeroing and measurement when possible (for most precise results followthe measurement procedures carefully).Discard the sample immediately after the reading is taken, or the glass might become permanentlystained.All the reaction times reported in this manual are at 25 C (77 F). In general, thereaction timeshould be increased for temperatures lower than 20 C (68 F), and decreased for temperatures higherthan 25 C (77 F).INTERFERENCESIn the method measurement section the most common interferences that may be present in an average

sample matrix have been reported. It may be that for a particular treatment process other compoundsdo interfere with the method of analysis.

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HEALTH & SAFETY

The chemicals contained in the reagent kits may be hazardous if improperly handled.

Read the Material Safety Data Sheet (MSDS) before performing tests.

Safety equipment: Wear suitable eye protection and clothing when required, and follow instructionscarefully.

Reagent spills: If a reagent spill occurs, wipe up immediately and rinse with plenty of water.If reagent contacts skin, rinse the affected area thoroughly with water. Avoid b

reathing released vapors.

Waste disposal: for proper disposal of reagent kits and reacted samples, refer to the Material SafetyData Sheet (MSDS).

METHOD REFERENCE TABLE

MethodMethod Page Method Method Pagedescription description

1 Aluminum 21 23 Magnesium 712 Alkalinity 23 24 Manganese HR 733 Ammonia MR 25 25 Manganese LR 754 Ammonia LR 2726 Molybdenum 785 Bromine 29 27 Nickel HR 816 Calcium 31 28 Nickel LR 837 Free Chlorine 33 29 Nitrate 868 Total Chlorine 36 30 Nitrite HR 889 Chlorine Dioxide 39 31 Nitrite LR 9010 Chromium VI HR 42 32 Dissolved Oxygen 9211 Chromium VI LR 44 33 Ozone 94

12 Color of Water 46 34 pH 9713 Copper HR 48 35 Phosphate HR 9914 Copper LR 50 36 Phosphate LR 10115 Cyanuric Acid 52 37 Phosphorus 10316 Fluoride 54 38 Potassium HR 10517 Calcium Hardness 56 39 Potassium MR 10818 Magnesium Hardness 59 40 Potassium LR 11019 Hydrazine 62 41 Silica 11220 Iodine 64 42 Silver 11421 Iron HR 66 43 Sulfate 117

22 Iron LR 68 44 Zinc 119

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OPERATIONAL GUIDE

POWER CONNECTION AND BATTERY MANAGEMENT

The meter can be powered from an AC/DC adapter (included) or from the built-in rechargeable battery.

Note: Always turn the meter off before unplugging it to ensure no data is lost.When the meter switches ON, it verifies if the power supply adapter is connected. The battery icon on the

LCD will indicate the battery status:

-battery is charging from external adapter - battery fully charged (meter connected to AC/DC adapter)-battery capacity (no external adapter) - battery Low (no external adapter)-battery Dead (no external adapter)

METHOD SELECTION

Turn the instrument ON via the ON/OFF power switch.The meter will perform an autodiagnostic test. During this test, the Hanna Instrument logo will appearon the LCD. After 5 seconds, if the test was successful, the last method used will appear on the display.In order to select the desired method press the METHOD key and a screen with theavailable methodswill appear.

Press the st keys to highlight the desired method. Press Select.12

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After the desired method is selected, follow the measurement described in the related section.Before performing a test you should read all the instructions carefully.DATA MANAGEMENT

The instrument features a data log function to help you keep track of all your a

nalysis. The data log canhold 200 individual measurements. Storing, viewing and deleting the data is possible using the LOGand RCL keys......

Storing data: You can store only a valid measurement. Press LOG and the last valid measurement will bestored with date and time stamps.

Viewing and deleting: You can view and delete the data log by pressing the RCL k

ey. You can only deletethe last saved measurement. Additionally, you can delete the data records all atonce.

CHEMICAL FORM

Chemical form conversion factors are pre-programmed into the instrument and aremethod specific. In orderto view the displayed result in the desired chemical form press s or t to accessthe second level functionand then press the Chem Frm key to toggle between the available chemical forms for the selected method.

SPECIAL CONVERSIONS

For Magnesium and Calcium Hardness, special conversion factors can be used to convert the readings frommg/L to French degrees (f), German degrees (dH) and English degrees (E) of hardness. This can beachieved by pressing s or t to access the second level functions and then pressthe Unit key to togglebetween f, dH, E and mg/L.

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SETUP SETUPIn the Setup mode the instruments parameters can be changed. Some parameters affect the measuring

sequence and others are general parameters that change the behavior or appearanc

e of the instrument.Press SETUP to enter the setup mode.Press ESC or SETUP to return to the main screen.A list of setup parameters will be displayed with currentlyconfigured settings. Press HELP for additional information.

Press the st keys to select a parameter and change thevalue as follows:

BacklightValues: 0 to 8.Press the Modify key to access the backlight value.Use the .u functional keys or the st keys to increase ordecrease the value.Press the Accept key to confirm or ESC to return to the setupmenu without saving the new value.

ContrastValues: 0 to 20.This option is used to set the displays contrast.Press the Modify key to change the displays contrast.

Use the .u functional keys or the st keys to increase ordecrease the value.Press the Accept key to confirm the value or ESC to return to thesetup menu without saving the new value.

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Date / Time

This option is used to set the instruments date and time.Press the Modify key to change the date/time.Press the .u functional keys to highlight the value to bemodified (year, month, day, hour, minute or second). Use the

s t keys to change the value.Press the Accept key to confirm or ESC to return to the setup

without saving the new date or time.

Time formatOption: AM/PM or 24 hour.Press the functional key to select the desired time format.

Date formatPress the Modify key to change the Date Format.Use the st keys to select the desired format.Press Accept key to confirm or ESC to return to the setup menuwithout saving the new format.

Language

Press the corresponding key to change the language.If the new language cannot be loaded, the previously selectedlanguage will be reloaded.

TutorialOption: Enable or Disable.If enabled this option will provide the user short guide related tothe current screen.Press the functional key to enable/disable the tutorial mode.

BeeperOption: Enable or Disable.When enabled, a short beep is heard every time a key is pressed.A long beep alert sounds when the pressed key is not active or an

error is detected.Press the functional key to enable/disable the beeper.

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Instrument IDOption: 0 to 9999.This option is used to set the instruments ID (identificationnumber). The instrument ID is used while exchanging data witha PC.Press the Modify key to access the instrument ID screen. Press

the st keys in order to set the desired value.Press the Accept key to confirm the value or ESC to return to thesetup menu without saving the new value.

Meter informationPress the Select key to view the instrument model, firmwareversion, language version and instrument serial number.

Press ESC to return to the Setup mode.

HELP MODEHI 83200 offers an interactive contextual help mode that assists the user at anytime.

To access the help screens press HELP.The instrument will display additional information related to thecurrent screen. To read all the available information, scroll thetext using the st keys.Press the Support key to access a screen with Hanna servicecenters and their contact details.Press the Accessories key to access a list of instrument reagentsand accessories.

To exit support or accessories screens press ESC and the instrumentwill return to the previous help screen.To exit help mode press the HELP or ESC key again and themeter will return to the previously selected screen.

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SAMPLE PREPARATION

SAMPLE PREPARATION PROCEDURE

The following Sample Preparation Procedure applies in case of:

Samples with color or suspended matter (turbidity).Concentrated samples, for which the analysis result is over the range of the parameter.Use the accessories contained in the Sample Preparation Kit to prepare the sample according to thefollowing instructions.

COLORED OR TURBID SAMPLES:

Colored or suspended matter in large amounts may cause interference. They shouldbe removed bytreatment with active carbon and filtration.

If the water sample contains suspended matter, let it stand in a beaker until most of the solid particleshave settled. Then, use the pipette to transfer the supernatant solution to theother beaker. To preventthe displacement of the settled solids at the bottom of the beaker, do not induce air bubbles into thesolution.

Measure 100 mL of sample with the graduated cylinder.If the solution still contains some turbidity or color, pourit in the large 170 mL beaker and add a powder packetof active carbon.Mix well using the spoon and then wait for 5 minutes.Fold a filter disc twice as shown in the figure. Separateone side from the other three to form a cone. Insert thefolded filter disc in the funnel.17

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Remove the cap and fill the Demineralizer Bottle with tap water.Replace the cap and shake gently for at least 2 minutes.Open the upper part of the Demineralizer Bottle cap and gently squirt the demineralized water into thecylinder, up to the 100 mL mark.

Note: The ion exchange resin contained in the Demineralizer Bottle is provided with an indicatorsubstance. The indicator will change from green to blue when the resin has beenexhausted and needsto be replaced.

Pour the solution in the 170 mL beaker, replace the cap and invert several timesto mix.19

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If the solution contains some turbidity or color, add a powder packet of activecarbon and follow theprocedure described in previous section Colored or Turbid Samples.Calculate the dilution factor N:

N = 100/VWhere:V is the volume of original sample poured in the cylinder, expressed in mL, and100 is the final volumein the cylinder, expressed in mL.

When performing the reading, pay attention to multiply the read value by the dilution factor in orderto obtain the real concentration of the analyte in the original sample:Example:Reading = value A

Dilution factor = NReal value in the original sample = A x N

Note: The methods Potassium Medium Range and Potassium High Range require a dilution of 1:5(N = 5, V = 20 mL) and 1:10 (N = 10, V = 10 mL) of the sample. As the dilution is alwaysdone, it is already included in the final result and is not necessary to multiply by the dilution factor.

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ALUMINUM

SPECIFICATIONSRange 0.00 to 1.00 mg/LResolution 0.01 mg/L

Accuracy 0.02 mg/L 4% of reading at 25 CTypical EMC 0.01 mg/L

DeviationLight Source Tungsten lamp with narrow band interference filter @ 525 nmMethod Adaptation of the aluminon method. The reaction between aluminum and reagents

causes a reddish tint in the sample.

REQUIRED REAGENTS

Code Description QuantityHI 93712A-0 Ascorbic acid 1 packetHI 93712B-0 Aluminon reagent 1 packetHI 93712C-0 Bleaching powder 1 packet

REAGENT SETSHI 93712-01 Reagents for 100 testsHI 93712-03 Reagents for 300 testsFor other accessories see page 124.

MEASUREMENT PROCEDURE

Select the Aluminum method using the procedure described inthe Method Selectionsection (see page 12).Fill a graduated beaker with 50 mL of sample.Add the content of one packet of HI 93712A-0 Ascorbic acidand mix until completely dissolved.Add the content of one packet of HI 93712B-0 Aluminonreagent and mix until completely dissolved. This is the sample.10 mL

10 mL

Fill two cuvettes with 10 mL of sample each (up to the mark).# 1

# 2

Aluminum

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Add the content of one packet of HI 93712C-0 Bleachingpowder to one of the two cuvettes. Replace the cap and shakevigorously until completely dissolved. This is the blank.# 1

Place the blank into the holder and close the lid.Press Timer and the display will show the countdown prior tozeroing the blank. Alternatively wait for 15 minutes and then pressZero. The display will show -0.0-when the meter is zeroed andready for measurement.# 1Remove the blank and insert the other cuvette into the instrument.# 2

Press the Read key and the meter will perform the reading. The instrument displays the results inmg/L of aluminum.Press s or t to access the second level functions.Press the Chem Frm key to convert the result in mg/L of Al2O3.Press s or t to return to the measurement screen.INTERFERENCES

Interference may be caused by:

Iron above 20 mg/L, Alkalinity above 1000 mg/L, Phosphate above 50 mg/L; Fluoride must be absent.

Aluminum

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ALKALINITY

SPECIFICATIONSRange 0 to 500 mg/L (as CaCO3)Resolution 5 mg/L

Accuracy 5 mg/L 10 % of reading at 25 CTypical EMC 5 mg/L

DeviationLight Source Tungsten lamp with narrow band interference filter @ 575 nmMethod Colorimetric Method. The reaction causes a distinctive range of colors from yellow to

green to greenish blue to develop.

REQUIRED REAGENTSCode Description Quantity/test

HI 93755-0 Alkalinity Indicator Reagent 1 mL



Select the Alkalinity method using the procedure describedin the Method Selection section (see page 12).

10 mL

Fill the cuvette with 10 mL of unreacted sample (up to themark) and replace the cap.Place the cuvette into the holder and close the lid.Press the Zero key. The display will show -0.0-when the meter is zeroed and readyformeasurement.23Alkalinity

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Remove the cuvette.Carefully add exactly 1 mL of HI 93755-0 Liquid AlkalinityReagent using the supplied syringe.Replace the cap and invert 5 times.

Reinsert the cuvette into the instrument and close the lid.Press Read to start the reading.The instrument displays the results in mg/L of alkalinity (CaCO3).Note: If using a meter with software version 1.14 or earlier, readings can be improved for sampleswith less than 75 ppm alkalinity by adding 0.7 mL of reagent instead of 1.0 mL.

Alkalinity

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AMMONIA MEDIUM RANGE

SPECIFICATIONS

Range

0.00 to 10.00 mg/L

Resolution0.01 mg/L

Accuracy0.05 mg/L 5% of reading at 25 C

Typical EMC0.01 mg/L

Deviation

Light SourceTungsten lamp with narrow band interference filter @ 420 nm

MethodAdaptation of the ASTM Manual of Water and Environmental Technology, D1426-92,Nessler method. The reaction between ammonia and reagents causes a yellow tint inthe sample.

REQUIRED REAGENTSCode Description QuantityHI 93715A-0 First Reagent 4 drops (6 drops for seawater)

HI 93715B-0 Second Reagent 4 drops (10 drops for seawater)



Select the Ammonia MRmethod using the procedure described in10 mL

the Method Selectionsection (see page 12).

Fill the cuvette with 10 mL of unreacted sample (up to the mark)and replace the cap.Place the cuvette into the holder and close the lid.Press the Zero key. The display will show -0.0-when the meter is zeroed and readyformeasurement.Ammonia MR

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Remove the cuvette.Add 4 drops of HI 93715A-0 First Reagent (6 drops forseawater analysis). Replace the cap and mix the solution.

Add 4 drops of HI 93715B-0 Second Reagent (10 drops for

seawater analysis). Replace the cap and mix the solution.Reinsert the cuvette into the instrument.Press Timer and the display will show the countdown prior to themeasurement or, alternatively, wait for 3 minutes and 30 secondsand press Read. When the timer ends the meter will perform thereading. The instrument displays the results in mg/L of ammonianitrogen (NH3-N).Press s or t to access the second level functions.Press the Chem Frm key to convert the result in mg/L of ammonia (NH3) and ammoni

um (NH4+).Press s or t to return to the measurement screen.INTERFERENCES

Interference may be caused by:acetone, alcohols, aldehydes, glycine, hardness above 1 g/L, iron, organic chloramines, sulfide, variousaliphatic and aromatic amines.

Ammonia MR

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AMMONIA LOW RANGE

SPECIFICATIONS

Range

0.00 to 3.00 mg/L

Resolution0.01 mg/L



Deviation


MethodAdaptation of the ASTM Manual of Water and Environmental Technology, D1426-92,Nessler method. The reaction between ammonia and reagents causes a yellow tint inthe sample.

REQUIRED REAGENTSCode Description QuantityHI 93700A-0 First Reagent 4 drops (6 drops for seawater)

HI 93700B-0 Second Reagent 4 drops (10 drops for seawater)



Select the Ammonia LRmethod using the procedure described in the

Method Selection section (see page 12).Fill the cuvette with 10 mL of unreacted sample (up to the mark)and replace the cap.Place the cuvette into the holder and close the lid.10 mLPress the Zero key. The display will show -0.0-when the meter is zeroed and readyformeasurement.Ammonia LR

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Remove the cuvette.Add 4 drops of HI 93700A-0 First Reagent (6 drops forseawater analysis). Replace the cap and mix the solution.

Add 4 drops of HI 93700B-0 Second Reagent (10 drops forseawater analysis). Replace the cap and mix the solution.Reinsert the cuvette into the instrument.Press Timer and the display will show the countdown prior to themeasurement or, alternatively, wait for 3 minutes and 30 seconds andpress Read. When the timer ends the meter will perform the reading.The instrument displays the results in mg/L of ammonia nitrogen(NH3-N).Press s or t to access the second level functions.Press the Chem Frm key to convert the result in mg/L of ammonia (NH3) and ammonium (NH4+).Press s or t to return to the measurement screen.INTERFERENCES

Interference may be caused by: acetone, alcohols, aldehydes, glycine, hardness above 1 g/L, iron, organicchloramines, sulfide, various aliphatic and aromatic amines.

Ammonia LR

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BROMINE



DeviationLight Source Tungsten lamp with narrow band interference filter @ 525 nmMethod Adaptation of the Standard Methods for the Examination of Water and Wastewater,

18th edition, DPD method. The reaction between bromine and the reagent causes apink tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93716-0 DPD Reagent 1 packet



Select the Brominemethod using the procedure described in the

Method Selectionsection (see page 12).10 mL

Fill the cuvette with 10 mL of unreacted sample (up to themark) and replace the cap.Place the cuvette into the holder and close the lid.Press the Zero key. The display will show -0.0-when the meter is zeroed and readyformeasurement.Bromine

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Remove the cuvette and add the content of one packet ofHI 93716-0 DPD reagent. Replace the cap and shake gently forabout 20 seconds to dissolve most of the reagent.Reinsert the cuvette into the instrument.

Press Timer and the display will show the countdown prior to the measurement or,alternatively, waitfor 2 minutes and 30 seconds and press Read. When the timer ends the meter willperform thereading.The instrument displays the results in mg/L of bromine.INTERFERENCES

Interference may be caused by: Chlorine, Iodine, Ozone, Oxidized forms of Chromium and Manganese.

In case of water with hardness greater than 500 mg/L CaCO3, shake the sample forapproximately2 minutes after adding the reagent.In case of water with alkalinity greater than 250 mg/L CaCO3 or acidity greaterthan 150 mg/L CaCO3,

the color of the sample may develop only partially, or may rapidly fade. To resolve this, neutralize thesample with diluted HCl or NaOH.

Bromine

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CALCIUM

SPECIFICATIONSRange 0 to 400 mg/LResolution 10 mg/L

Accuracy 10 mg/L 5% of reading at 25 CLight Source Tungsten lamp with narrow band interference filter @ 466 nmMethod Adaptation of the Oxalate method.

REQUIRED REAGENTSCode Description Quantity

-Buffer Reagent 4 dropsHI 93752A-0 Ca Calcium Buffer Reagent 7 mLHI 93752B-0 Ca Calcium Oxalate Reagent 1 mLREAGENT SETSHI 937521-01 Reagents for 50 tests

HI 937521-03 Reagents for 150 testsFor other accessories see page 124.

MEASUREMENT PROCEDURENote: for sample preparation follow the COLORED OR TURBID SAMPLES procedure at page 17.

Select the Calciummethod using the procedure described in the Method Selectionsection (see page 12).Using the 5 mL syringe add exactly 3.00 mL of sample to the cuvette.

Use the pipette to fill the cuvette up to the10 mL mark with the HI 93752A-0 CalciumBuffer Reagent.Add 4 drops of Buffer Reagent.3 mL of sampleCalcium

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32Press Timer or wait for 5 minutes. Then invert againthe cuvette 10 times to mix (about 15 seconds).Reinsert the cuvette into the instrument.Press Read to start the reading. The instrument displays the results in mg/L ofCalcium.

INTERFERENCES:Interferences may be caused by:Acidity (as CaCO3) above 1000 mg/LAlkalinity (as CaCO3) above 1000 mg/LMagnesium (Mg2+) above 400 mg/LReplace the cap and invert several times to mix.Place the cuvette into the holder and close the lid.Press the Zero key. The display will show -0.0-whenthe meter is zeroed and ready for measurement.Remove the cuvette.Using the 1 mL syringe, add exactly 1 mL of theHI 93752B-0 Calcium Oxalate Reagent. Replace the

cap and invert the cuvette 10 times to mix (about15 seconds).Calcium

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FRE CHLORINEFREE CHLORINEFREE CHLORINEFREE CHLORINEFREE CHLORINEFREE CHLORINEFREE CHLORINE



DeviationLight Source Tungsten lamp with narrow band interference filter @ 525 nmMethod Adaptation of the EPA DPD method 330.5. The reaction between free chlorine and the

DPD reagent causes a pink tint in the sample.

REQUIRED REAGENTSPOWDER:


HI 93701-0 DPD 1 packet

LIQUID:Code Description QuantityHI 93701A-F DPD1 Indicator 3 dropsHI 93701B-F DPD1 Buffer 3 drops

REAGENT SETSHI 93701-F Reagents for 300 tests (liquid)HI 93701-01 Reagents for 100 tests (powder)HI 93701-03 Reagents for 300 tests (powder)

For other accessories see page 124.


Select the Free Chlorinemethod using the procedure describedin the Method Selection section (see page 12).10 mL

Fill the cuvette with 10 mL of unreacted sample (up to themark) and replace the cap.Place the cuvette into the holder and close the lid.Free Chlorine

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Press the Zero key. The meter will show -0.0-when the meter is zeroed and ready for measurement.Remove the cuvette.Powder reagents procedure

Add the content of one packet of HI 93701 DPD reagent. Replacethe cap and shake gently for 20 seconds (or 2 minutes for seawateranalysis).Reinsert the cuvette into the instrument.Press Timer and the display will show the countdown prior to the measurement or,alternatively, waitfor 1 minute and press Read. When the timer ends the meter will perform the reading. The instrumentdisplays the results in mg/L of free chlorine.

Liquid reagents procedure

To an empty cuvette add 3 drops of HI 93701A-F DPD1indicator and 3 drops of HI 93701B-F DPD1 buffer. Swirlgently to mix, and immediately add 10 mL of unreactedsample. Replace the cap and shake gently again.Free Chlorine

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Reinsert the cuvette into the instrument.Press Read to start the reading. The instrument displays the results in mg/L offree chlorine.INTERFERENCES

Interference may be caused by: Bromine, Iodine, Ozone, Oxidized forms of Chromiu

m and Manganese.

In case of water with hardness greater than 500 mg/L CaCO3, shake the sample forapproximately2 minutes after adding the powder reagent.In case of water with alkalinity greater than 250 mg/L CaCO3 or acidity greaterthan 150 mg/L CaCO3,

the color of the sample may develop only partially, or may rapidly fade. To resolve this, neutralize the

sample with diluted HCl or NaOH.

Free Chlorine

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TOTAL CHLORINE



DeviationLight Source Tungsten lamp with narrow band interference filter @ 525 nmMethod Adaptation of the EPA DPD method 330.5. The reaction between the chlorineand the

DPD reagent causes a pink tint in the sample.

REQUIRED REAGENTS

POWDER:Code Description QuantityHI 93711-0 DPD 1 packetLIQUID:Code Description QuantityHI 93701A-T DPD1 indicator 3 dropsHI 93701B-T DPD1 buffer 3 dropsHI 93701C DPD3 solution 1 drop

REAGENT SETSHI 93701-T Reagents for 300 total chlorine tests (liquid)HI 93711-01 Reagents for 100 total chlorine tests (powder)HI 93711-03 Reagents for 300 total chlorine tests (powder)

For other accessories see page 124.


Select the Total Chlorine method using the proceduredescribed in the Method Selectionsection (see page 12).10 mL

Fill the cuvette with 10 mL of unreacted sample (up to themark) and replace the cap.Place the cuvette into the holder and close the lid.Total Chlorine36

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37 Total ChlorinePress the Zero key. The meter will show -0.0-when the meter is zeroed and ready for measurement.Remove the cuvette.Powder reagents procedureAdd 1 packet of HI 93711 DPD reagent. Replace the cap and

shake gently for 20 seconds (or 2 minutes for seawater analysis).Reinsert the cuvette into the instrument.Press Timer and the display will show the countdown prior to themeasurement or, alternatively, wait for 2 minutes and 30 secondsand press Read. When the timer ends the meter will perform thereading. The instrument displays the results in mg/L of totalchlorine.Liquid reagents procedureTo an empty cuvette add 3 drops of HI 93701A-TDPD1 indicator, 3 drops of HI 93701B-T DPD1 bufferand 1 drop of HI 93701C DPD3 solution. Swirl gentlyto mix and immediately add 10 mL of unreacted

sample. Replace the cap and shake gently again.Reinsert the cuvette into the instrument.

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Press Timer and the display will show the countdown prior to the measurement or,alternatively, waitfor 2 minutes and 30 seconds and press Read. When the timer ends the meter willperform thereading.

The instrument displays the results in mg/L of total chlorine.Note: free and total chlorine have to be measured separately with fresh unreacted samples followingthe related procedure if both values are requested.

INTERFERENCES

Interference may be caused by: Bromine, Iodine, Ozone, Oxidized forms of Chromium and Manganese.

In case of water with hardness greater than 500 mg/L CaCO3, shake the sample for

approximately2 minutes after adding the powder reagent.In case of water with alkalinity greater than 250 mg/L CaCO3 or acidity greaterthan 150 mg/L CaCO3,


Total Chlorine38

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CHLORINE DIOXIDE

SPECIFICATIONS

Range

0.00 to 2.00 mg/L

Resolution0.01 mg/L



Deviation


MethodAdaptation of the Chlorophenol Red method. The reaction between chlorine dioxideandreagents causes a colorless to purple tint in the sample.

REQUIRED REAGENT

Code Description QuantityHI 93738A-0 Reagent A 1 mL

HI 93738B-0 Dechlorinating Reagent B 1 packetHI 93738C-0 Reagent C 1 mLHI 93738D-0 Reagent D 1 mL



Select the Chlorine Dioxide method using the procedure

described in the Method Selectionsection (see page 12).

# 1

# 2

Fill two graduated mixing cylinders (#1 & #2) up to the25 mL

25 mL

25 mL mark with the sample.

Add 0.5 mL of HI 93738A-0 Chlorine Dioxide Reagent to each cylinder (#1 & #2), c

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lose them andinvert several times to mix.# 1 & # 2# 1

# 2

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Add the content of one packet of HI 93738B-0 Dechlorinating Reagent to one of the two cylinders(#1), close and invert it several times until it is totally dissolved. This is the blank.# 1Add precisely 0.5 mL of HI 93738C-0 Chlorine Dioxide Reagent to each cylinder (#

1 & #2), close themand invert several times to mix.# 1

# 2

# 1 & # 2Add 0.5 mL of HI 93738D-0 Chlorine Dioxide Reagent to each cylinder (#1 & #2), close them andinvert several times to mix. Cylinder #2 is the reacted sample.# 1 & # 2

# 1

# 2

# 1Fill a cuvette with 10 mL of the blank (#1) up to the mark10 mL

and replace the cap.

Place the blank (#1) into the holder and close the lid.# 1

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Press the Zero key. The meter will show -0.0-when the meter is zeroed and ready formeasurement.Fill another cuvette with 10 mL of the reacted sample (#2) upto the mark and replace the cap.10 mL

# 2

Insert the sample into the instrument.# 2Press Read and the meter will perform the reading. The instrument displays the results in mg/L ofchlorine dioxide.SAMPLING PROCEDURE

It is recommended to analyze chlorine dioxide samples immediately after collection. Chlorine dioxide samples

must be stored in sealed dark glass bottle, with minimal head space. Excessive heat (above 25C/78F),agitation and exposure to light must be avoided.

INTERFERENCES

Interferences may be caused by strong oxidants.

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Reinsert the cuvette into the instrument.Press Timer and the display will show the countdown prior to the measurement or,alternatively, waitfor 6 minutes and press Read. When the timer ends the meter will perform the reading. The

instrument displays concentration in g/L of chromium VI.Press s or t to access the second level functions.Press the Chem Frm key to convert the result in g/L of Chromate (CrO42) and Dichromate (Cr2O72).Press s or t to return to the measurement screen.INTERFERENCES


Vanadium above 1 ppm. However, waiting 10 minutes before reading, the interference is removedIron above 1 ppmMercurous and mercuric ions cause slight inhibition of the reaction.

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CHROMIUM VI LOW RANGE

SPECIFICATIONSRange 0 to 300 g/LResolution 1 g/L

Accuracy 1 g/L 4% of reading at 25 CTypical EMC 1 g/L

DeviationLight Source Tungsten lamp with narrow band interference filter @ 525 nmMethod Adaptation of the ASTM Manual of Water and Environmental Technology, D1687-92,

Diphenylcarbohydrazide method. The reaction between chromium VI and the reagentcauses a purple tint in the sample.

REQUIRED REAGENTS


HI 93749-0 Powder reagent 1 packet



Select the Chromium VI LRmethod using the procedure described in

the Method Selectionsection (see page 12).Fill the cuvette with 10 mL of unreacted sample (up to the mark)and replace the cap.Place the cuvette into the holder and close the lid.10 mLPress the Zero key. The meter will show -0.0-when the meter is zeroed and ready formeasurement.Remove the cuvette and add the content of one packet ofHI 93749-0 reagent. Replace the cap and shake vigorously

for about 10 seconds.

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Reinsert the cuvette into the instrument.Press Timer and the display will show the countdown prior to the measurement or,alternatively, waitfor 6 minutes and press Read. When the timer ends the meter will perform the reading. The instrument

displays concentration in g/L of chromium VI.Press s or t to access the second level functions.Press the Chem Frm key to convert the result in g/L of Chromate (CrO42) and Dichromate (Cr2O72).Press s or t to return to the measurement screen.INTERFERENCES


Vanadium above 1 ppm. However, waiting 10 minutes before reading, the interference is removed.Iron above 1 ppmMercurous and mercuric ions cause slight inhibition of the reaction.

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COLOR OF WATER

SPECIFICATIONS

Range 0 to 500 PCU (Platinum Cobalt Units)Resolution 1 PCUAccuracy 10 PCU 5% of reading at 25 CTypical EMC 1 PCUDeviationLight Source Tungsten lamp with narrow band interference filter @ 420 nmMethod Adaptation of the Standard Methods for the Examination of Water and Wastewater,18th edition, Colorimetric Platinum Cobalt method.

REQUIRED ACCESSORIES

0.45 m membrane for true color measurement.For other accessories see page 124.MEASUREMENT PROCEDURE

Select the Color of Watermethod using the procedure described inthe Method Selection section (see page 12).10 mL

Fill one cuvette up to the mark with deionized water and replace# 1

the cap. This is the blank.

Place the blank (# 1) into the holder and close the lid.# 1Press the Zero key. The meter will show -0.0-when the meter is zeroed and ready for measurement.Remove the blank.Color of Water46

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Fill the second cuvette up to the mark with unfiltered sample10 mL

and replace the cap. This is the apparent color.

# 2

Filter 10 mL of sample through a filter with a 0.45 mmembrane into the third cuvette, up to the 10 mL mark andreplace the cap. This is the true color.# 3

# 2Insert the apparent color cuvette (# 2) into the instrument andclose the lid.Press Read to start the reading.The meter displays the value of apparent color in PCU.Remove the cuvette, insert the true color cuvette (# 3) into theinstrument and ensure that the notch on the cap is positionedsecurely into the groove.# 3Press Read to start the reading. The meter displays the value of true color in PCU.47Color of Water

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COPPER HIGH RANGE



DeviationLight Source Tungsten lamp with narrow band interference filter @ 575 nmMethod Adaptation of the EPA method. The reaction between copper and the bicinchoninate

reagent causes a purple tint in the sample.


HI 93702-0 Bicinchoninate 1 packet



Select the Copper HRmethod using the procedure described in theMethod Selectionsection (see page 12).

10 mL

Fill the cuvette with 10 mL of unreacted sample (up to the mark)and replace the cap.Place the cuvette into the holder and close the lid.Press the Zero key. The meter will show -0.0-when the meter is zeroed and ready for measurement.Copper HR48

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Remove the cuvette.Add the content of one packet of HI 93702-0 Bicinchoninate.Replace the cap and shake gently for about 15 seconds.Reinsert the cuvette into the instrument.

Press Timer and the display will show the countdown prior to the measurement or,alternatively, waitfor 45 seconds and press Read. When the timer ends the meter will perform the reading.The instrument displays the results in mg/L of copper.INTERFERENCES

Interference may be caused by:SilverCyanideFor samples overcoming buffering capacity of reagent (around pH 6.8), pH shouldbe adjusted between

6 and 8.

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COPPER LOW RANGE

SPECIFICATIONS

Range 0 to 1000 g/LResolution 1 g/LAccuracy 10 g/L 5% of reading at 25 CTypical EMC 1 g/LDeviationLight Source Tungsten lamp with narrow band interference filter @ 575 nmMethod Adaptation of the EPA method. The reaction between copper and the bicinchoninatereagent causes a purple tint in the sample.


HI 95747-0 Bicinchoninate 1 packet



Select the Copper LR method using the procedure described in10 mL

the Method Selectionsection (see page 12).

Fill the cuvette with 10 mL of unreacted sample (up to themark) and replace the cap.Place the cuvette into the holder and close the lid.Press the Zero key. The meter will show -0.0-when the meter is zeroed and ready for measurement.Copper LR50

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Remove the cuvette.Add the content of one packet of HI 95747-0 Bicinchoninate.Replace the cap and shake gently for about 15 seconds.Reinsert the cuvette into the instrument.

Press Timer and the display will show the countdown prior to the measurement or,alternatively, waitfor 45 seconds and press Read. When the timer ends the meter will perform the reading.The instrument displays the results in g/L of copper.INTERFERENCES

Interference may be caused by:SilverCyanideFor samples overcoming buffering capacity of reagent (around pH 6.8), pH should

be adjusted between6 and 8.

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CYANURIC ACID

SPECIFICATIONSRange 0 to 80 mg/LResolution 1 mg/L

Accuracy 1 mg/L 15% of reading at 25 CTypical EMC 1 mg/L

DeviationLight Source Tungsten lamp with narrow band interference filter @ 525 nmMethod Adaptation of the turbidimetric method. The reaction between cyanuric acid and the

reagent causes a white suspension in the sample.





Select the Cyanuric Acid method using the proceduredescribed in the Method Selectionsection (see page 12).

Fill the cuvette with 10 mL of unreacted sample (up to themark) and replace the cap.10 mLPlace the cuvette into the holder and close the lid.Press the Zero key. The meter will show -0.0-when the meter is zeroed and ready formeasurement.Cyanuric Acid52

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Add the content of one packet of HI 93722-0 Cyanuric AcidReagent. Replace the cap and shake gently for about10 seconds (dissolution is not complete).Reinsert the cuvette into the instrument.Press Timer and the display will show the countdown prior to the measurement or,

alternatively, waitfor 45 seconds and press Read. When the timer ends the meter will perform the reading.The instrument displays concentration in mg/L of cyanuric acid.53

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FLUORIDE




18th edition, SPADNS method. The reaction between fluoride and the liquid reagentcauses a red tint in the sample.

REQUIRED REAGENTCode Description Quantity

HI 93729-0 SPADNS Reagent 4 mL



Select the Fluoride method using the procedure described inthe Method Selectionsection (see page 12).Add 2 mL of HI 93729-0 SPADNS Reagent to two cuvettes.2 mL

Fill one of the cuvettes with distilled water up to the mark,replace the cap and invert several times to mix.

10 mL

10 mL

# 1

# 2

Fill the other cuvette with sample up to the mark, replace thecap and invert several times to mix.

Place the cuvette with the reacted distilled water (# 1) intothe holder and close the lid.# 1Fluoride

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Press Timer and the display will show the countdown prior to zeroing the blank or, alternatively, waitfor two minutes and press Zero. The display will show -0.0-when the meter is zeroed and ready formeasurement.

Remove the cuvette.Insert the other cuvette (# 2) with the reacted sample into theinstrument.# 2Press Read to start reading. The instrument displays the results in mg/L of fluoride.Note: For wastewater or seawater samples, before performing measurements, distillation is required.For most accurate results, use two graduated pipettes to deliver exactly 8 mL ofdistilled water and

8 mL of sample.

INTERFERENCES

Interferences may be caused by:Alkalinity (as CaCO3) above 5000 mg/LAluminum above 0.1 mg/LIron, ferric above 10 mg/LChloride above 700 mg/LPhosphate, ortho above 16 mg/LSodium hexametaphosphate above 1.0 mg/LSulfate above 200 mg/LHighly colored and turbid samples may require distillation

Highly alkaline samples can be neutralized with nitric acid.

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CALCIUM HARDNESS




18th edition, Calmagite method. The reaction between calcium and reagents causesareddish-violet tint in the sample.

REQUIRED REAGENTS

Code Description QuantityHI 93720A-0 Ca & Mg indicator 0.5 mLHI 93720B-0 Alkali solution 0.5 mLHI 93720C-0 EGTA solution 1 drop



Select the Calcium Hardness method using the proceduredescribed in the Method Selectionsection (see page 12).Rinse a graduated beaker several times with unreactedsample, before filling it to the 50 mL mark with thesample.Add 0.5 mL of HI 93720A-0 Calcium indicator solutionand swirl to mix.

Add 0.5 mL of HI 93720B-0 Alkali solution and swirl tomix. Use this solution to rinse 2 cuvettes before filling themup to the 10 mL mark.# 1 # 2Hardness Ca56

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Add 1 drop of HI 93720C-0 EGTA solution to one cuvette (# 1), replacethe cap and invert the cuvette several times to mix. This is the blank.# 1

# 1

Place the blank (# 1) into the holder and close the lid.Press the Zero key. The meter will show -0.0-when the meter is zeroed and ready formeasurement.Remove the blank and insert the second cuvette (# 2)into the instrument.# 2Press Read to start the reading. The instrument displays concentration in mg/L of calciumhardness, as CaCO3.Press s or t to access the second level functions.Press the Chem Frm key to convert the result in mg/L of Calcium (Ca).57Hardness Ca

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Press the Unit key to change the current measurement unit. The results can be converted to Frenchdegrees (f), German degrees (dH) and English degrees (E).Press s or t to return to the measurement screen.Note: This test will detect any calcium contamination in the beaker, measuring s

yringes or sample cells. Totest cleanliness, repeat the test multiple times until you obtain consistent results.Note: For better accuracy wash glassware with HCl 6N.SAMPLE DILUTION

This meter is designed to determine low levels of hardness, typically found in water purification systems.

When testing some other sources of water, it is not uncommon to come across levels of hardness that aregreater than the range of this meter.

This problem can be overcome through dilution. Dilutions must be performed withhardness-free water or the

readings will be erroneous.A dilution to reduce the level of hardness by a factor of one hundred is performed as follows:

Fill a 1 mL syringe with the sample.Place the syringe in a 50 mL beaker, making sure that the beaker is clean and em

pty, and inject 0.5mL into the beaker.Fill the beaker up to the 50 mL mark with hardness-free water.INTERFERENCES

Interference may be caused by excessive amounts of heavy metals.

Hardness Ca58

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MAGNESIUM HARDNESS




18th edition,EDTA colorimetric method. The reaction between magnesium and reagentscauses a reddish-violet tint in the sample.

REQUIRED REAGENTSCode Description QuantityHI 93719A-0 Mg indicator 0.5 mLHI 93719B-0 Alkali solution 0.5 mLHI 93719C-0 EDTA solution 1 dropHI 93719D-0 EGTA solution 1 drop



Select the Magnesium Hardness method using the proceduredescribed in the Method Selection section (see page 12).Rinse a graduated beaker several times with unreacted sample,before filling it to the 50 mL mark with the sample.Add 0.5 mL of HI 93719A-0 Magnesium indicator solution,then swirl to mix.Add 0.5 mL of HI 93719B-0 Alkali solution and swirl to mix.

Use this solution to rinse 2 cuvettes.59Hardness Mg

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Hardness Mg 60Fill both cuvettes up to the 10 mL mark.Add 1 drop of HI 93719C-0 EDTA solution to one cuvette(# 1), replace the cap and invert the cuvette severaltimes to mix. This is the blank.Add 1 drop of HI 93719D-0 EGTA solution to the second

cuvette (# 2), replace the cap and invert the cuvetteseveral times to mix. This is the sample.Place the blank (# 1) into the holder and close the lid.Press the Zero key. The meter will show -0.0-when the meter is zeroed and ready formeasurement.Remove the blank (# 1), insert the sample (# 2) intothe instrument, and close the lid.Press Read to start the reading. The instrument displays concentration in mg/L of magnesiumhardness, as CaCO3.10 mL 10 mL

# 1# 1# 1# 2# 2# 2

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Press s or t to access the second level functions.Press the Chem Frm key to convert the result in mg/L of Magnesium (Mg).Press the Unit key to change the current measurement unit. The results can be converted to Frenchdegrees (f), German degrees (dH) and English degrees (E).

Press s or t to return to the measurement screen.Note: This test will detect any magnesium contamination in the beakers, measuring syringes or samplecells. To test cleanliness, repeat the test multiple times until you obtain consistent results.

SAMPLE DILUTION

This meter is designed to determine hardness typically found in water purification systems. In order tomeasure samples with high hardness, follow dilution procedure explained on page

58 (Ca Hardness).

INTERFERENCES

Interference may be caused by excessive amounts of heavy metals.

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HYDRAZINE


Accuracy 4% of full scale reading at 25 CTypical EMC 2 g/L

DeviationLight Source Tungsten lamp with narrow band interference filter @ 420 nmMethod Adaptation of the ASTM Manual of Water and Environmental Technology, method

D1385-88, p-Dimethylaminobenzaldehyde method. The reaction between hydrazineand the liquid reagent causes a yellow tint in the sample.

REQUIRED REAGENT


HI 93704-0 Liquid Reagent 24 drops



Select the Hydrazinemethod using the procedure described in

the Method Selectionsection (see page 12).Fill one cuvette up to the mark with 10 mL of distilled water.10 mL# 1# 1Place the cap, insert the cuvette # 1 into the holder andclose the lid.Press the Blank key to start adjusting the light level. The display will show Blank donewhen themeter is ready to take a zero measurement.Fill a second cuvette with 10 mL of unreacted sample (up to

the mark) and replace the cap.10 mL# 2

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63Add 12 drops of the HI 93704-0 reagent toeach cuvette. Replace the caps and shakegently to mix (about 30 seconds).Place the blank (#1) into the holder and close the lid.Press Timer and the display will show the countdown prior to zeroing the blank.

The display will show-0.0-when the meter is zeroed and ready for measurement.Remove the blank.Insert the cuvette with the reacted sample (# 2) into theinstrument and close the lid.Press Read to start the reading. The instrument displays concentration in g/L ofhydrazine.HydrazineINTERFERENCESInterference may be caused by:Highly colored samplesHighly turbid samples

Aromatic amines# 1 # 2# 1# 2

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IODINE




18th edition, DPD method. The reaction between iodine and the reagent causes a pinktint in the sample.


HI 93718-0 DPD Reagent 1 packet



Select the Iodinemethod using the procedure described inthe Method Selection section (see page 12).Fill the cuvette with 10 mL of unreacted sample (up tothe mark) and replace the cap.Place the cuvette into the holder and close the lid.10 mLPress the Zero key. The display will show -0.0-when the meter is zeroed and readyformeasurement.

Remove the cap and add the content of one packet of HI 93718-0DPD reagent. Replace the cap and shake gently for about30 seconds to dissolve most of the reagent.Iodine

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Reinsert the cuvette into the instrument.Press Timer and the display will show the countdown prior to the measurement or,alternatively, waitfor 2 minutes and 30 seconds and press Read. When the timer ends the meter willperform the

reading.The instrument displays concentration in mg/L of iodine.INTERFERENCES

Interference may be caused by: Bromine, Chlorine, Ozone, Oxidized forms of Chromium and Manganese.

In case of water with hardness greater than 500 mg/L CaCO3, shake the sample forapproximately2 minutes after adding the reagent.In case of water with alkalinity greater than 250 mg/L CaCO3 or acidity greater

than 150 mg/L CaCO3,


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IRON HIGH RANGE



DeviationLight Source Tungsten lamp with narrow band interference filter @ 525 nmMethod Adaptation of the EPA Phenantroline method 315B, for natural and treatedwaters.

The reaction between iron and reagents causes an orange tint in the sample.


HI 93721-0 Powder Reagent 1 packet



Select the Iron HRmethod using the procedure describedin the Method Selection section (see page 12).

Fill the cuvette with 10 mL of unreacted sample (up tothe mark) and replace the cap.Place the cuvette into the holder and close the lid.10 mLPress the Zero key. The display will show -0.0-the meter is zeroed and ready formeasurement.Remove the cuvette and add the content of one packet ofHI 93721-0 reagent. Replace the cap and shake until dissolution

is complete.Iron HR66

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Reinsert the cuvette into the instrument.Press Timer and the display will show the countdown prior to the measurement or,alternatively, waitfor 3 minutes and press Read. When the timer ends the meter will perform the reading.The instrument displays concentration in mg/L of iron.

INTERFERENCES

Interference may be caused by:Molybdate Molybdenum above 50 ppmCalcium above 10000 ppm (as CaCO3)Magnesium above 100000 ppm (as CaCO3)Chloride above 185000 ppm.

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IRON LOW RANGE


Accuracy 10 g/L 8% of reading at 25 CTypical EMC 1 g/L

DeviationLight Source Tungsten lamp with narrow band interference filter @ 575 nmMethod Adaptation of the TPTZ Method. The reaction between iron and the reagentcauses a

violet tint in the sample.


HI 93746-0 TPTZ Reagent 2 packets



Select the Iron LRmethod using the procedure described inthe Method Selectionsection (see page 12).

Fill one graduated mixing cylinder up to the 25 mL markwith deionized water.Add the content of one packet of HI 93746-0 TPTZreagent, close the cylinder and shake vigorously for30 seconds. This is the blank.Fill a cuvette with 10 mL of the blank up to the mark andreplace the cap.Place the cuvette into the holder and close the lid.

10 mL25 mLIron LR68

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INTERFERENCES

Interference may be caused by:Cadmium above 4.0 mg/LChromium3+ above 0.25 mg/LChromium6+ above 1.2 mg/L

Cobalt above 0.05 mg/LCopper above 0.6 mg/LCyanide above 2.8 mg/LManganese above 50.0 mg/LMercury above 0.4 mg/LMolybdenum above 4.0 mg/LNickel above 1.0 mg/LNitrite ion above 0.8 mg/LSample pH should be between 3 and 4 to avoid developed color to

fade or turbidity formation.

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Remove the cuvette.0.5 mLof sampleUsing the other 1 mL syringe, add to the cuvette exactly 0.5 mL of sample.

Note: Do not mix up the two syringes!Replace the cap and invert several times to mix.Reinsert the cuvette into the instrument.Press Timer and the display will show the countdown prior to the measurement or,alternatively, waitfor 15 seconds and press Read. When the timer ends the meter will perform the reading.The instrument displays the results in mg/L of Magnesium (Mg2+).INTERFERENCES

Interferences may be caused by:Acidity (as CaCO3) above 1000 mg/LAlkalinity (as CaCO3) above 1000 mg/LCalcium (Ca2+) above 200 mg/LIron must be absentAluminum must be absentCopper must be absent

Magnesium

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MANGANESE HIGH RANGE




18th edition, Periodate method. The reaction between manganese and reagents causesa pink tint in the sample.

REQUIRED REAGENTS

Code Description QuantityHI 93709A-0 Citrate 1 packetHI 93709B-0 Sodium periodate 1 packet

REAGENT SETS

HI 93709-01 Reagents for 100 testsHI 93709-03 Reagents for 300 testsFor other accessories see page 124.


Select the Manganese HRmethod using the procedure described inthe Method Selectionsection (see page 12).Fill the cuvette with 10 mL of unreacted sample (up to themark) and replace the cap.Place the cuvette into the holder and close the lid.10 mLPress the Zero key. The display will show -0.0-when the meter is zeroed and readyfor

measurement.Remove the cuvette.Add the content of one packet of HI 93709A-0 Citrate reagent.Replace the cap and invert to mix with gently movements for2 minutes.73

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Add the content of one packet of HI 93709B-0 SodiumPeriodate reagent. Replace the cap and invert to mix withgently movements for 2 minutes.Reinsert the cuvette into the instrument.

Press Timer and the display will show the countdown prior to the measurement or,alternatively, waitfor 1 minute and 30 seconds and press Read. When the timer ends the meter will perform the reading.The instrument displays the results in mg/L of manganese.Press s or t to access the second level functions.Press the Chem Frm key to convert the result in mg/L of potassium permanganate (KMnO4) andpermanganate (MnO4).Press s or t to return to the measurement screen.INTERFERENCES

Interference may be caused by:Calcium above 700 mg/LChloride above 70000 mg/LIron above 5 mg/LMagnesium above 100000 mg/L.

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MANGANESE LOW RANGE


Accuracy 10 g/L 3% of reading at 25 CTypical EMC 1 g/LDeviationLight Source Tungsten lamp with narrow band interference filter @ 575 nmMethod Adaptation of the PAN Method. The reaction between manganese and the reagents

causes an orange tint in the sample.

REQUIRED REAGENTCode Description QuantityHI 93748A-0 Ascorbic acid 2 packets

HI 93748B-0 Alkaline-cyanide sol. 0.40 mLHI 93748C-0 0.1% PAN indicator 2 mLHI 93703-51 Dispersing Agent 4-6 drops

REAGENT SETS

HI 93748-01 Reagents for 50 testsHI 93748-03 Reagents for 150 testsFor other accessories see page 124.


Select the Manganese LR method using the procedure described in the Method Selection section (seepage 12).10 mL

Fill one cuvette with 10 mL of deionized water (up to the mark).Fill a second cuvette with 10 mL of sample (up to the mark).10 mL

Add the content of one packet of HI 93748A-0 Ascorbic acid toeach cuvette, replace the caps and shake gently until completely

dissolved.75Manganese LR

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Add 0.2 mL of the HI 93748B-0 Alkaline-cyanidereagent solution to each cuvette, replace the caps andinvert gently to mix for about 30 seconds.Add 1 mL of the HI 93748C-0 0.1% PAN indicator

solution to each cuvette, replace the caps and shakegently.Add 3 drops of Dispersing Agent (HI 93703-51) to eachcuvette, replace the caps and invert gently to mix forabout 30 seconds.Place the cuvette with the reacted deionized water(blank) into the holder and close the lid.Press Timer and the display will show the countdown prior to zeroing the blank.Alternatively wait for2 minutes and then press Zero. The display will show -0.0-when the meter is zeroe

d and ready formeasurement.Manganese LR76

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Insert the second cuvette with the reacted sample into the instrument.Press Read to start the reading. The instrument displays the results in g/L of manganese.Press s or t to access the second level functions.

Press the Chem Frm key to convert the result in g/L of potassium permanganate (KMnO4) andpermanganate (MnO4).Press s or t to return to the measurement screen.INTERFERENCES

Interference may be caused by:Aluminum above 20 mg/LCadmium above 10 mg/LCalcium above 200 mg/L as CaCO3Cobalt above 20 mg/L

Copper above 50 mg/LIron above 10 mg/LLead above 0.5 mg/LMagnesium above 100 mg/L as CaCO3Nickel above 40 mg/LZinc above 15 mg/L.

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MOLYBDENUM



DeviationLight Source Tungsten lamp with narrow band interference filter @ 420 nmMethod Adaptation of the mercaptoacetic acid method. The reaction between molybdenum and

the reagents causes a yellow tint in the sample.

REQUIRED REAGENTCode Description Quantity

HI 93730A-0 Reagent A 1 packetHI 93730B-0 Reagent B 1 packetHI 93730C-0 Reagent C 1 packet



Select the Molybdenum method using the procedure

described in the Method Selectionsection (see page 12).Fill the cuvette with 10 mL of unreacted sample (up tothe mark) and replace the cap.Place the cuvette into the holder and close the lid.10 mLPress the Zero key. The display will show -0.0-when the meter is zeroed and readyformeasurement.Molybdenum78

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Fill one graduated mixing cylinder up to the 25 mLmark with the sample.Add the content of one packet of HI 93730A-0molybdenum reagent, close the cylinder and invertit several times until completely dissolved.

Add the content of one packet of HI 93730B-0molybdenum reagent to the cylinder, close andinvert it several times until completely dissolved.Add the content of one packet of HI 93730C-0molybdenum reagent to the cylinder, close andshake it vigorously.Fill an empty cuvette with 10 mL of sample up tothe mark and replace the cap.Insert the cuvette into the instrument.25 mL

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Press Timer and the display will show the countdown prior to the measurement or,alternatively, waitfor five minutes and press Read. When the timer ends the meter will perform thereading. Theinstrument displays concentration in mg/L of molybdenum.

Press s or t to access the second level functions.Press the Chem Frm key to convert the result in mg/L of molybdate (MoO4) and sodium molybdate(Na2MoO4).Press s or t to return to the measurement screen.INTERFERENCES

Interference may be caused by:Aluminum above 50 mg/L

Chromium above 1000 mg/LCopper above 10 mg/LIron above 50 mg/LNickel above 50 mg/LNitrite, as NO2Sulfate above 200 mg/LHighly buffered samples or with extreme pH may exceed the buffering capacity ofthe reagents.

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NICKEL HIGH RANGE

SPECIFICATIONSRange 0.00 to 7.00 g/LResolution 0.01 g/L

Accuracy 0.07 4% of reading at 25 CTypical EMC 0.02 g/L

DeviationLight Source Tungsten lamp with narrow band interference filter @ 575 nmMethod Adaptation of the photometric method. The reaction between nickel and thereagent

causes a blue tint in the sample.





Select the Nickel HRmethod using the procedure described in the Method Selectionsection (see page 12).Fill the cuvette up to the mark with 10 mL of unreacted sample

10 mL

and replace the cap.

Place the cuvette into the holder and close the lid.Press the Zero key. The display will show -0.0-when the meter is zeroed and readyformeasurement.81Nickel HR

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Remove the cuvette and add the content of one packet ofHI 93726-0 reagent. Replace the cap and shake gentlyuntil completely dissolved.Reinsert the cuvette into the instrument.Press Timer and the display will show the countdown prior to the measurement or,

alternatively, waitfor 1 minute and press Read. When the timer ends the meter will perform the reading.The instrument displays concentration in g/L of nickel.INTERFERENCES

Interference may be caused by copper.

Nickel HR

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NICKEL LOW RANGE



DeviationLight Source Tungsten lamp with narrow band interference filter @ 575 nmMethod Adaptation of the PAN method. The reaction between nickel and the reagents causes

an orange tint in the sample.

REQUIRED REAGENTS

Code Description QuantityHI 93740A-0 Phthalate-phosphate 2 packetsHI 93740B-0 0.3% PAN indicator 2 mLHI 93740C-0 EDTA 2 packetsHI 93703-51 Dispersing Agent 4-6 drops (only when necessary, see note)



Select the Nickel LR method using the proceduredescribed in the Method Selectionsection (see page 12).Note: for best results perform your tests between 20-24C.

Fill one graduated beaker with 25 mL of deionizedwater (blank) and another one with 25 mL of sample.Add the content of one packet of HI 93740A-0

Phthalate-phosphate reagent to each beaker. Capand swirl gently until the reagent is dissolved.Note: If sample contains iron (Fe3+), it is importantthat all powder be dissolved completely before continuingwith following step.

Add 1 mL of HI 93740B-0 0.3% PAN solution to eachbeaker, cap and swirl to mix.83Nickel LR

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Nickel LR 84Press Timer and the display will show a countdown prior to adding reagent C or,alternatively, waitfor 15 minutes. Add one packet of HI 93740C-0 EDTA reagent to each beaker, cap and swirl to mixuntil completely dissolved.

Fill one cuvette up to the mark with 10 mL of the blank.Place the cuvette into the holder and close the lid.Press the Zero key. The display will show -0.0-when the meter is zeroed and readyformeasurement.Fill a second cuvette up to the mark with 10 mL of the reacted sample.Insert the second cuvette into the instrument.Press Read to start the reading. The instrument displays the results in mg/L ofnickel.Note: a temperature above 30C may cause turbidity. In this case, before zeroing and takingreadings, add 2-3 drops of Dispersing Agent (HI 93703-51) to each cuvette and sw

irl until turbidityis removed.10 mL10 mL

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INTERFERENCES

Interference may be caused by:Co2+ must not be presentFe2+ must not be presentAl3+ above 32 mg/L

Ca2+ above 1000 mg/L (as CaCO3)Cd2+ above 20 mg/LCl above 8000 mg/LCr3+ above 20 mg/LCr6+ above 40 mg/LCu2+ above 15 mg/LF above 20 mg/LFe3+ above 10 mg/LK+ above 500 mg/LMg2+ above 400 mg/LMn2+ above 25 mg/LMo6+ above 60 mg/L

Na+ above 5000 mg/LPb2+ above 20 mg/LZn2+ above 30 mg/L

Nickel LR

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NITRATE



DeviationLight Source Tungsten lamp with narrow band interference filter @ 525 nmMethod Adaptation of the cadmium reduction method. The reaction between nitrateand the

reagent causes an amber tint in the sample.





Select the Nitrate method using the procedure described inthe Method Selectionsection (see page 12).

Using the pipette, fill the cuvette with 6 ml of sample, up tohalf of its height, and replace the cap.Place the cuvette into the holder and close the lid.6 mLPress the Zero key. The display will show -0.0-when the meter is zeroed and readyformeasurement.Remove the cuvette and add the content of one packet ofHI 93728-0 reagent.Nitrate

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Replace the cap and immediately shake vigorously upand down for exactly 10 seconds. Continue to mix byinverting the cuvette gently for 50 seconds, whiletaking care not to induce air bubbles. Powder will notcompletely dissolve. Time and way of shaking could

sensitively affect the measurement.Reinsert the cuvette into the instrument, taking carenot to shake it.Press Timer and the display will show the countdownprior to the measurement or, alternatively, wait for 4minutes and 30 seconds and press Read. When the timerends the meter will perform the reading. The instrumentdisplays the results in mg/L of nitrate-nitrogen.Press s or t to access the second level functions.Press the Chem Frm key to convert the result in mg/L of nitrate (NO3).Press s or t to return to the measurement screen.INTERFERENCES

Interference may be caused by:Ammonia and amines, as urea and primary aliphatic aminesChloride above 100 ppmChlorine above 2 ppmCopperIron(III)Strong oxidizing and reducing substances

Sulfide must be absent

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NITRITE HIGH RANGE

SPECIFI

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