Hanna Instruments HI 83200 User Manual

Instruction Manual

HI 83200

Multiparameter Bench

Photometer

for 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 the

instrument. This manual will provide you with the necessary information for the correct use of the
instrument. If you need additional technical information, do not hesitate to e-mail us at [e-mail].

TABLE OF CONTENTS

PRELIMINARY EXAMINATION ............................................. 3

GENERAL DESCRIPTION ..................................................... 3

ABBREVIATIONS ............................................................... 4

SPECIFICATIONS .............................................................. 4

PRECISION AND ACCURACY ............................................... 4

PRINCIPLE OF OPERATION ................................................ 5

FUNCTIONAL DESCRIPTION ............................................... 6

TIPS FOR AN ACCURATE MEASUREMENT ........................... 8

HEALTH & SAFETY ..........................................................11

METHOD REFERENCE TABLE ............................................. 11

OPERATIONAL GUIDE ....................................................... 12

SETUP ........................................................................... 14

HELP MODE ................................................................... 16

SAMPLE PREPARATION .................................................... 17

ALUMINUM ....................................................................21

ALKALINITY ....................................................................23

AMMONIA MR ................................................................ 25

AMMONIA LR .................................................................27

BROMINE ......................................................................29

CALCIUM ....................................................................... 31

FREE CHLORINE ............................................................. 33

TOTAL CHLORINE ............................................................36

CHLORINE DIOXIDE ......................................................... 39

CHROMIUM VI HR ..........................................................42

CHROMIUM VI LR ...........................................................44

COLOR OF WATER ........................................................... 46

COPPER HR ....................................................................48

COPPER LR ....................................................................50

CYANURIC ACID .............................................................. 52

FLUORIDE ...................................................................... 54

CALCIUM HARDNESS ....................................................... 56

MAGNESIUM HARDNESS .................................................59

All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Hanna
Instruments Inc., Woonsocket, Rhode Island, 02895 , USA.

HYDRAZINE .................................................................... 62

IODINE .......................................................................... 64

IRON HR ........................................................................66

IRON LR .........................................................................68

MAGNESIUM .................................................................. 71

MANGANESE HR .............................................................73

MANGANESE LR ............................................................. 75

MOLYBDENUM ............................................................... 78

NICKEL HR ..................................................................... 81

NICKEL LR ......................................................................83

NITRATE .........................................................................86

NITRITE HR .................................................................... 88

NITRITE LR ..................................................................... 90

DISSOLVED OXYGEN ........................................................ 92

OZONE .......................................................................... 94

pH ................................................................................97

PHOSPHATE HR ..............................................................99

PHOSPHATE LR ............................................................. 101

PHOSPHORUS ............................................................. 103

POTASSIUM HR ............................................................ 105

POTASSIUM MR ............................................................ 108

POTASSIUM LR ............................................................. 110

SILICA ......................................................................... 112

SILVER ........................................................................ 114

SULFATE ......................................................................117

ZINC ............................................................................ 119

ERRORS AND WARNINGS ............................................... 121

DATA MANAGEMENT ...................................................... 122

STANDARD METHODS .................................................... 123

ACCESSORIES .............................................................. 124

WARRANTY .................................................................. 127

HANNA LITERATURE ...................................................... 127

PRELIMINARY EXAMINATION

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

Each meter is supplied complete with:

• Four Sample Cuvettes and Caps

• Sample 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)

• Scissors

• AC/DC Power Adapter

• Instruction Manual

The sample preparation kit contains:

• 4 cuvettes (10 mL) with caps

• 2 plastic beakers (100 and 170 mL)

• 1 graduated cylinder (100 mL)

• 1 syringe with screw rim (60 mL)

• 1 syringe (5 mL)

• 1 funnel

• 25 filter discs

• 1 spoon

• 2 pipettes

• Carbon powder packets (50 pcs)

• 1 Demineralizer Bottle with filter cap for about 12 liters of deionized water (depending on the
hardness level of water to be treated)

Note: Save all packing material until you are sure that the instrument works correctly. Any defective item

must 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 ensure
maximum reproducibility.

HI 83200 bench photometer can be connected to a PC via an USB cable. The optional HI 92000
Windows® 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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ABBREVIATIONS

PRINCIPLE OF OPERATION

EPA: US Environmental Protection Agency

°C: degree Celsius
°F: degree Fahrenheit

µg/L: micrograms per liter (ppb)

mg/L: milligrams per liter (ppm)

g/L: grams per liter (ppt)

mL: milliliter

HR: high range

MR: medium range

LR: low range

PAN: 1-(2-pyridylazo)-2-naphtol

TPTZ: 2,4,6-tri-(2-pyridyl)-1,3,5-triazine

SPECIFICATIONS

Light Life Life of the instrument
Light Detector Silicon Photocell
Environment 0 to 50°C (32 to 122°F);

max 90% RH non-condensing

Power Supply external 12 Vdc power adapter

built-in rechargeable battery

Dimensions 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 measurement
section.

PRECISION AND ACCURACY

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 by atoms, molecules or
crystal lattices.

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

-log I/Io = ελ c d

or

A = ελ c d

Where:

-log I/I

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 specific
chemical 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 wavelength to optimize
measurements.

The optical system of HI 83200 is based on special subminiature tungsten lamps and narrow-band
interference filters to guarantee both high performance and reliable results.

Five measuring channels allow a wide range of tests.

= Absorbance (A)

o

Io= intensity of incident light beam
I = intensity of light beam after absorption

ελ= molar extinction coefficient at wavelength λ

c = molar concentration of the substance
d = optical path through the substance

Precision is how closely repeated measurements agree
with each other. Precision is usually expressed as
standard deviation (SD).

Accuracy is defined as the nearness of a test result to
the true value.

Although good precision suggests good accuracy, precise
results can be inaccurate. The figure explains these
definitions.

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

Instrument block diagram (optical layout)

A microprocessor controlled special tungsten lamp emits radiation which is first optically conditioned and beamed
through the sample contained in the cuvette. The optical path is fixed by the diameter of the cuvette. Then
the light is spectrally filtered to a narrow spectral bandwidth, to obtain a light beam of intensity Io 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 to
display it on the LCD.

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ESC

RCL

HELP

SETUP

The measurement process is carried out in two phases: first the meter is zeroed and then the actual
measurement is performed.

The cuvette has a very important role because it is an optical element and thus requires particular attention. It
is important that both the measurement and the calibration (zeroing) cuvette are optically identical to provide the
same measurement conditions. Most methods use the same cuvette for both, so it is important that measurements
are taken at the same optical point. The instrument and the cuvette cap have special marks that must be
aligned 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 the measurement phases,
it is necessary to cap the cuvette to prevent any contamination.

FUNCTIONAL DESCRIPTION

1) Open Cuvette Lid

2) Indexing mark

3) Cuvette point

4) Liquid Crystal Display (LCD)

5) Splash proof keypad

6) ON/OFF power switch

7) Power input connector

8) USB connector

INSTRUMENT DESCRIPTION

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.

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 access second level

functions.

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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(c)

(a) (b)

Probable level of

liquid taken up
by syringe

TIPS FOR AN ACCURATE MEASUREMENT

The instructions listed below should be carefully followed during testing to ensure most accurate results.

• Color or suspended matter in large amounts may cause interference, and should be removed by
treatment with active carbon and filtration: refere to Sample Preparation Chapter (page 17).

• Ensure the cuvette is filled correctly: the liquid in the cuvette forms a convexity on the top; the bottom
of this convexity must be at the same level as the 10 mL mark.

COLLECTING AND MEASURING SAMPLES

• In order to measure exactly 0.5 mL of reagent with the 1 mL syringe:
(a) push the plunger completely into the syringe and insert the tip into the solution.
(b) pull the plunger up until the lower edge of the seal is exactly on the 0.0 mL mark.
(c) take out the syringe and clean the outside of the syringe tip. Be sure that no drops are hanging

on the tip of the syringe, if so eliminate them. Then, keeping the syringe in vertical position above
the cuvette, push the plunger down into the syringe until the lower edge of the seal is exactly on
the 0.5 mL mark. Now the exact amount of 0.5 mL has been added to the cuvette, even if the
tip still contains some solution.

• 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 a
cuvette 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. Turn

the cuvette upside-down and wait for all of the solution to flow to the cap end, then return the cuvette
to the upright vertical position and wait for all of the solution to flow to the cuvette bottom. This is one
inversion. The correct speed for this mixing technique is 10-15 complete inversions in 30 seconds.

This mixing technique is indicated with “invert to mix” and the following icon:

USING LIQUID AND POWDER REAGENTS

• Proper use of the dropper:
(a) for reproducible results, tap the dropper on the table for several times and wipe the outside of the

dropper tip with a cloth.

(b) always keep the dropper bottle in a vertical position while dosing the reagent.

(a) (b)

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(b) shaking the cuvette, moving the cuvette up and down. The movement may be gentle or vigorous.

This mixing method is indicated with “shake gently” or “shake vigorously”, and one of the following
icons:

shake gently shake vigorously

• Pay attention to push the cuvette completely down in the holder and to align the white point on the
cap to the indexing mark on the meter.

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 instructions
carefully.

• 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 breathing released vapors.

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

• In order to avoid reagent leaking and to obtain more accurate
measurements, 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 dry
outside, and free of fingerprints, oil or dirt. Wipe it thoroughly with
HI 731318 or a lint-free cloth prior to insertion.

• Shaking the cuvette can generate bubbles in the sample, causing higher
readings. To obtain accurate measurements, remove such bubbles by
swirling or by gently tapping the cuvette.

• Do not let the reacted sample stand too long after reagent is added. For
best accuracy, respect the timings described in each specific method.

• It is possible to take multiple readings in a row, but it is recommended
to take a new zero reading for each sample and to use the same cuvette
for zeroing and measurement when possible (for most precise results follow
the measurement procedures carefully).

• Discard the sample immediately after the reading is taken, or the glass might become permanently
stained.

• All the reaction times reported in this manual are at 25 °C (77 °F). In general, the reaction time
should be increased for temperatures lower than 20 °C (68 °F), and decreased for temperatures higher
than 25 °C (77 °F).

INTERFERENCES

• In 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 compounds
do interfere with the method of analysis.

METHOD REFERENCE TABLE

Method Method Page

description

1 Aluminum 21
2 Alkalinity 23
3 Ammonia MR 25
4 Ammonia LR 27

5 Bromine 29

6 Calcium 31
7 Free Chlorine 33
8 Total Chlorine 36

9 Chlorine Dioxide 39
10 Chromium VI HR 42
11 Chromium VI LR 44
12 Color of Water 46
13 Copper HR 48
14 Copper LR 50
15 Cyanuric Acid 52
16 Fluoride 54
17 Calcium Hardness 56
18 Magnesium Hardness 59
19 Hydrazine 62
20 Iodine 64
21 Iron HR 66
22 Iron LR 68

Method Method Page

description

23 Magnesium 71
24 Manganese HR 73
25 Manganese LR 75
26 Molybdenum 78
27 Nickel HR 81
28 Nickel LR 83
29 Nitrate 86
30 Nitrite HR 88
31 Nitrite LR 90
32 Dissolved Oxygen 92
33 Ozone 94
34 pH 97
35 Phosphate HR 99
36 Phosphate LR 101
37 Phosphorus 103
38 Potassium HR 105
39 Potassium MR 108
40 Potassium LR 110
41 Silica 112
42 Silver 114
43 Sulfate 117
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)

• 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 analysis. The data log can
hold 200 individual measurements. Storing, viewing and deleting the data is possible using the LOG
and

RCL keys

Storing data

stored with date and time stamps.

..

.

..

: You can store only a valid measurement. Press LOG

and the last valid measurement will be

- 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 appear

on 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 the available methods

will appear.

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

Viewing and deleting

the last saved measurement. Additionally, you can delete the data records all at once.

: You can view and delete the data log by pressing the RCL key. You can only delete

CHEMICAL FORM

Chemical form conversion factors are pre-programmed into the instrument and are method specific. In order
to view the displayed result in the desired chemical form press s or t to access the second level function
and 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 from
mg/L to French degrees (°f), German degrees (°dH) and English degrees (°E) of hardness. This can be
achieved by pressing s or t to access the second level functions and then press the Unit key to toggle
between °f, °dH, °E and mg/L.

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SETUP

In the Setup mode the instrument’s parameters can be changed. Some parameters affect the measuring
sequence and others are general parameters that change the behavior or appearance 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 currently
configured settings. Press HELP for additional information.

Press the s t keys to select a parameter and change the
value as follows:

Backlight

Values: 0 to 8.

Press the Modify key to access the backlight value.
Use the ⊳ u functional keys or the s t keys to increase or
decrease the value.
Press the Accept key to confirm or ESC to return to the setup

menu without saving the new value.

Contrast

Values: 0 to 20.

This option is used to set the display’s contrast.
Press the Modify key to change the display’s contrast.
Use the ⊳ u functional keys or the s t keys to increase or
decrease the value.
Press the Accept key to confirm the value or ESC to return to the

setup menu without saving the new value.

Date / Time

This option is used to set the instrument’s date and time.
Press the Modify key to change the date/time.
Press the ⊳ u functional keys to highlight the value to be
modified (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 format

Option: AM/PM or 24 hour.

Press the functional key to select the desired time format.

Date format

Press the Modify key to change the Date Format.
Use the s t keys to select the desired format.
Press Accept key to confirm or ESC to return to the setup menu

without saving the new format.

Language

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

Tutorial

Option: Enable or Disable.

If enabled this option will provide the user short guide related to
the current screen.
Press the functional key to enable/disable the tutorial mode.

Beeper

Option: 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 ID

Option: 0 to 9999.

This option is used to set the instrument’s ID (identification
number). The instrument ID is used while exchanging data with
a PC.
Press the Modify key to access the instrument ID screen. Press
the s t keys in order to set the desired value.
Press the Accept key to confirm the value or ESC to return to the
setup menu without saving the new value.

Meter information

Press the Select key to view the instrument model, firmware
version, language version and instrument serial number.

Press ESC to return to the Setup mode.

HELP MODEHELP MODE

HELP MODE

HELP MODEHELP MODE

HELP MODE

HI 83200 offers an interactive contextual help mode that assists the user at any time.

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 the

following instructions.

COLORED OR TURBID SAMPLES:

Colored or suspended matter in large amounts may cause interference. They should be removed by
treatment with active carbon and filtration.

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

• Measure 100 mL of sample with the graduated cylinder.

• If the solution still contains some turbidity or color, pour
it in the large 170 mL beaker and add a powder packet
of active carbon.

To access the help screens press HELP.
The instrument will display additional information related to the
current screen. To read all the available information, scroll the
text using the s t keys.
Press the Support key to access a screen with Hanna service
centers and their contact details.
Press the Accessories key to access a list of instrument reagents
and accessories.
To exit support or accessories screens press ESC and the instrument
will return to the previous help screen.
To exit help mode press the HELP or ESC key again and the
meter will return to the previously selected screen.

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• Mix well using the spoon and then wait for 5 minutes.

• Fold a filter disc twice as shown in the figure. Separate
one side from the other three to form a cone. Insert the
folded filter disc in the funnel.

• Filter the treated sample into an empty beaker.
The sample is now ready.

• If the solution is still turbid or colored, treat it again with a packet of active carbon. After use, throw
the filter disc away and wash the syringe and the filter assembly well. Always use a new disc for
another sample.

• Remove the cap and fill the Demineralizer Bottle with tap water.

• Replace the cap and shake gently for at least 2 minutes.

CONCENTRATED SAMPLES:

If the analysis result is over the method range, the sample should be diluted. The following procedure
describe how to dilute the sample by a factor “N” (that is, to dilute by “N times”):

• Use the graduated cylinder to measure exactly V mL of sample. For volumes V < 20 mL, accurately
dose the sample by mean of the syringe.

Note: To measure exactly 5 mL of sample with the syringe, push the plunger completely into the
syringe and insert the tip into the sample. Pull the plunger out until the lower edge of the seal is on
the 5 mL mark of the syringe.

• Open the upper part of the Demineralizer Bottle cap and gently squirt the demineralized water into the
cylinder, up to the 100 mL mark.

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

• Pour the solution in the 170 mL beaker, replace the cap and invert several times to mix.

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• If the solution contains some turbidity or color, add a powder packet of active carbon and follow the

procedure described in previous section Colored or Turbid Samples.

• Calculate the dilution factor N:
N = 100/V
Where:
V is the volume of original sample poured in the cylinder, expressed in mL, and 100 is the final volume

in the cylinder, expressed in mL.

• When performing the reading, pay attention to multiply the read value by the dilution factor in order
to obtain the real concentration of the analyte in the original sample:

Example:
Reading = value A
Dilution factor = N
Real 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 always
done, it is already included in the final result and is not necessary to multiply by the dilution factor.

ALUMINUM

SPECIFICATIONS

Range 0.00 to 1.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.02 mg/L ±4% of reading at 25 °C
Typical EMC ±0.01 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the aluminon method. The reaction between aluminum and reagents

causes a reddish tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93712A-0 Ascorbic acid 1 packet
HI 93712B-0 Aluminon reagent 1 packet
HI 93712C-0 Bleaching powder 1 packet

REAGENT SETS

HI 93712-01 Reagents for 100 tests
HI 93712-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the
the

Method Selection

Aluminum

method using the procedure described in
section (see page 12).

• Fill a graduated beaker with 50 mL of sample.

• Add the content of one packet of HI 93712A-0 Ascorbic acid
and mix until completely dissolved.

• Add the content of one packet of HI 93712B-0 Aluminon
reagent and mix until completely dissolved. This is the sample.

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

20 21

10 mL

# 1

10 mL

# 2

Aluminum

• Add the content of one packet of HI 93712C-0 Bleaching
powder to one of the two cuvettes. Replace the cap and shake
vigorously 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 to

# 1

zeroing the blank. Alternatively wait for 15 minutes and then press
Zero. The display will show “-0.0-“ when the meter is zeroed and
ready for measurement.

# 2

• Remove the blank and insert the other cuvette into the instrument.

• Press the Read key and the meter will perform the reading. The instrument displays the results in
mg/L of aluminum.

ALKALINITY

SPECIFICATIONS

Range 0 to 500 mg/L (as CaCO3)
Resolution 5 mg/L
Accuracy ±5 mg/L ±10 % of reading at 25 °C
Typical EMC ±5 mg/L

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

green to greenish blue to develop.

REQUIRED REAGENTS

Code Description Quantity/test

HI 93755-0 Alkalinity Indicator Reagent 1 mL

REAGENT SETS

HI 93755-01 Reagents for 100 tests
HI 93755-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the
in the

Method Selection

Alkalinity

method using the procedure described

section (see page 12).

10 mL

• 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

22 23

• 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 ready for
measurement.

Alkalinity

• Remove the cuvette.

Note: Any chlorine present in the sample will interfere with the

reading. To remove the chlorine interference add one drop
of HI 93755-53 Chlorine Remover to the unreacted sample.

• Carefully add exactly 1 mL of HI 93755-0 Liquid Alkalinity
Reagent 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.

AMMONIA MEDIUM RANGE

SPECIFICATIONS

Range 0.00 to 10.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.05 mg/L ±5% of reading at 25 °C
Typical EMC ±0.01 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 420 nm
Method Adaptation of the

Nessler method. The reaction between ammonia and reagents causes a yellow tint in
the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93715A-0 First Reagent 4 drops (6 drops for seawater)
HI 93715B-0 Second Reagent 4 drops (10 drops for seawater)

REAGENT SETS

HI 93715-01 Reagents for 100 tests
HI 93715-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Fill the cuvette with 10 mL of unreacted sample (up to the mark)

Ammonia MR

the

Method Selection

and replace the cap.

section (see page 12).

ASTM Manual of Water and Environmental Technology, D1426-92

method using the procedure described in

,

10 mL

• 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 samples

with less than 75 ppm alkalinity by adding 0.7 mL of reagent instead of 1.0 mL.

Alkalinity

24 25

• 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 ready for

measurement.

Ammonia MR

• Remove the cuvette.

AMMONIA LOW RANGE

• Add 4 drops of HI 93715A-0 First Reagent (6 drops for
seawater 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 the
measurement or, alternatively, wait for 3 minutes 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 ammonia

nitrogen (NH3-N).

SPECIFICATIONS

Range 0.00 to 3.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.04 mg/L ±4% of reading at 25 °C
Typical EMC ±0.01 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 420 nm
Method Adaptation of the

ASTM Manual of Water and Environmental Technology, D1426-92

Nessler method. The reaction between ammonia and reagents causes a yellow tint in
the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93700A-0 First Reagent 4 drops (6 drops for seawater)
HI 93700B-0 Second Reagent 4 drops (10 drops for seawater)

REAGENT SETS

HI 93700-01 Reagents for 100 tests
HI 93700-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Fill the cuvette with 10 mL of unreacted sample (up to the mark)

Ammonia LR

Method Selection

section (see page 12).

and replace the cap.

method using the procedure described in the

,

10 mL

• 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 (NH

+

4

• 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, various
aliphatic and aromatic amines.

Ammonia MR

26 27

• 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 ready for

measurement.

Ammonia LR

• Remove the cuvette.

• Add 4 drops of HI 93700A-0 First Reagent (6 drops for
seawater analysis). Replace the cap and mix the solution.

• Add 4 drops of HI 93700B-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 the
measurement or, alternatively, wait for 3 minutes 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 ammonia nitrogen
(NH3-N).

BROMINE

SPECIFICATIONS

Range 0.00 to 8.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.08 mg/L ±3% of reading at 25 °C
Typical EMC ±0.01 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the

18

th

edition

pink tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93716-0 DPD Reagent 1 packet

REAGENT SETS

HI 93716-01 Reagents for 100 tests
HI 93716-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Fill the cuvette with 10 mL of unreacted sample (up to the

Bromine

method using the procedure described in the

Method Selection

section (see page 12).

mark) and replace the cap.

Standard Methods for the Examination of Water and Wastewater,

, DPD method. The reaction between bromine and the reagent causes a

10 mL

• 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 (NH

+

4

• 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, various aliphatic and aromatic amines.

Ammonia LR

28 29

• 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 ready for

measurement.

Bromine

• Remove the cuvette and add the content of one packet of
HI 93716-0 DPD reagent. Replace the cap and shake gently for
about 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, wait
for 2 minutes and 30 seconds and press Read. When the timer ends the meter will perform the
reading.

CALCIUM

SPECIFICATIONS

Range 0 to 400 mg/L
Resolution 10 mg/L
Accuracy ±10 mg/L ±5% of reading at 25 °C
Light Source Tungsten lamp with narrow band interference filter @ 466 nm
Method Adaptation of the Oxalate method.

REQUIRED REAGENTS

Code Description Quantity

- Buffer Reagent 4 drops

HI 93752A-0 Ca Calcium Buffer Reagent 7 mL
HI 93752B-0 Ca Calcium Oxalate Reagent 1 mL

REAGENT SETS

HI 937521-01 Reagents for 50 tests
HI 937521-03 Reagents for 150 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

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

• Select the

Calcium

method using the procedure described in the

Method Selection

section (see page 12).

• 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 for approximately

2 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,

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

Bromine

30 31

• Using the 5 mL syringe add exactly 3.00 mL of sample to the cuvette.

3 mL of sample

• Use the pipette to fill the cuvette up to the
10 mL mark with the HI 93752A-0 Calcium
Buffer Reagent.

• Add 4 drops of Buffer Reagent.

Calcium

• Replace 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-” when

the meter is zeroed and ready for measurement.

• Remove the cuvette.

• Using the 1 mL syringe, add exactly 1 mL of the
HI 93752B-0 Calcium Oxalate Reagent. Replace the
cap and invert the cuvette 10 times to mix (about
15 seconds).

• Press Timer or wait for 5 minutes. Then invert again
the 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 of Calcium.

INTERFERENCES:

Interferences may be caused by:
Acidity (as CaCO3) above 1000 mg/L
Alkalinity (as CaCO3) above 1000 mg/L
Magnesium (Mg2+) above 400 mg/L

FREE CHLORINE

FREE CHLORINEFREE CHLORINE

FREE CHLORINE

FREE CHLORINEFREE CHLORINE

SPECIFICATIONS

Range 0.00 to 2.50 mg/L
Resolution 0.01 mg/L
Accuracy ±0.03 mg/L ±3% of reading at 25 °C
Typical EMC ±0.01 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the

DPD reagent causes a pink tint in the sample.

EPA DPD method 330.5.

The reaction between free chlorine and the

REQUIRED REAGENTS

POWDER:
Code Description Quantity

HI 93701-0 DPD 1 packet

LIQUID:
Code Description Quantity

HI 93701A-F DPD1 Indicator 3 drops
HI 93701B-F DPD1 Buffer 3 drops

REAGENT SETS

HI 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.

MEASUREMENT PROCEDURE

• Select the

• Fill the cuvette with 10 mL of unreacted sample (up to the

• Place the cuvette into the holder and close the lid.

Free Chlorine

in the

Method Selection

mark) and replace the cap.

method using the procedure described
section (see page 12).

10 mL

Calcium

32 33

Free Chlorine

• 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. 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 the measurement or, alternatively, wait
for 1 minute and press Read. When the timer ends the meter will perform the reading. The instrument
displays the results in mg/L of free chlorine.

• Reinsert the cuvette into the instrument.

• Press Read to start the reading. The instrument displays the results in mg/L of free chlorine.

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 approximately

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

Liquid reagents procedure

• To an empty cuvette add 3 drops of HI 93701A-F DPD1
indicator and 3 drops of HI 93701B-F DPD1 buffer. Swirl
gently to mix, and immediately add 10 mL of unreacted
sample. Replace the cap and shake gently again.

34 35

Free ChlorineFree Chlorine

TOTAL CHLORINE

SPECIFICATIONS

Range 0.00 to 3.50 mg/L
Resolution 0.01 mg/L
Accuracy ±0.03 mg/L ±3% of reading at 25 °C
Typical EMC ±0.01 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the

DPD reagent causes a pink tint in the sample.

REQUIRED REAGENTS

POWDER:
Code Description Quantity

HI 93711-0 DPD 1 packet

LIQUID:
Code Description Quantity

HI 93701A-T DPD1 indicator 3 drops
HI 93701B-T DPD1 buffer 3 drops
HI 93701C DPD3 solution 1 drop

REAGENT SETS

HI 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.

EPA DPD method 330.5.

The reaction between the chlorine and the

• 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 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 the
measurement or, alternatively, wait for 2 minutes 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 total

chlorine.

MEASUREMENT PROCEDURE

• Select the
described in the

• 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.

Total Chlorine

Total Chlorine

Method Selection

method using the procedure

section (see page 12).

36 37

10 mL

Liquid reagents procedure

• To an empty cuvette add 3 drops of HI 93701A-T
DPD1 indicator, 3 drops of HI 93701B-T DPD1 buffer
and 1 drop of HI 93701C DPD3 solution. Swirl gently
to mix and immediately add 10 mL of unreacted
sample. Replace the cap and shake gently again.

• Reinsert the cuvette into the instrument.

Total Chlorine

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 2 minutes 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 total chlorine.

Note: free and total chlorine have to be measured separately with fresh unreacted samples following
the 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 approximately

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

CHLORINE DIOXIDE

SPECIFICATIONS

Range 0.00 to 2.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.10 mg/L ±5% of reading at 25 °C
Typical EMC ±0.01 mg/L
Deviation
Light Source Tungsten lamp with narrow band interference filter @ 575 nm
Method Adaptation of the Chlorophenol Red method. The reaction between chlorine dioxide and

reagents causes a colorless to purple tint in the sample.

REQUIRED REAGENT

Code Description Quantity

HI 93738A-0 Reagent A 1 mL
HI 93738B-0 Dechlorinating Reagent B 1 packet
HI 93738C-0 Reagent C 1 mL
HI 93738D-0 Reagent D 1 mL

REAGENT SETS

HI 93738-01 Reagents for 100 tests
HI 93738-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the
described in the

• Fill two graduated mixing cylinders (#1 & #2) up to the
25 mL mark with the sample.

Chlorine Dioxide

Method Selection

method using the procedure

section (see page 12).

# 1

25 mL

# 2

25 mL

Total Chlorine

• Add 0.5 mL of HI 93738A-0 Chlorine Dioxide Reagent to each cylinder (#1 & #2), close them and
invert several times to mix.

# 1 # 2

38 39

# 1 & # 2

Chlorine Dioxide

• 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.

# 1

• Add precisely 0.5 mL of HI 93738C-0 Chlorine Dioxide Reagent to each cylinder (#1 & #2), close them
and invert several times to mix.

• Press the Zero key. The meter will show “-0.0-” when the meter is zeroed and ready for

measurement.

# 2

• Fill another cuvette with 10 mL of the reacted sample (#2) up
to the mark and replace the cap.

10 mL

# 1 & # 2

# 1

# 2

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

# 1 & # 2

# 1

# 2

• Fill a cuvette with 10 mL of the blank (#1) up to the mark
and replace the cap.

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

# 1

# 1

10 mL

# 2

• Insert the sample into the instrument.

• Press Read and the meter will perform the reading. The instrument displays the results in mg/L of

chlorine 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 25°C/78°F),
agitation and exposure to light must be avoided.

INTERFERENCES

Interferences may be caused by strong oxidants.

Chlorine Dioxide

40 41

Chlorine Dioxide

CHROMIUM VI HIGH RANGE

SPECIFICATIONS

Range 0 to 1000 µg/L
Resolution 1 µg/L
Accuracy ±5 µg/L ±4% of reading at 25 °C
Typical EMC ±1 µg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the

ASTM Manual of Water and Environmental Technology, D1687-92

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

REQUIRED REAGENTS

Code Description Quantity

HI 93723-0 Powder reagent 1 packet

REAGENT SETS

HI 93723-01 Reagents for 100 tests
HI 93723-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the
the

• 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.

Chromium VI HR

Method Selection

method using the procedure described in

section (see page 12).

10 mL

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 6 minutes and press Read. When the timer ends the meter will perform the reading. The
instrument displays concentration in

µµ

µg/L of chromium VI.

µµ

,

• Press s or t to access the second level functions.

• Press the Chem Frm key to convert the result in µg/L of Chromate (CrO

2

¯) and Dichromate (Cr2O

4

2

¯).

7

• Press s or t to return to the measurement screen.

• Press the Zero key. The meter will show “-0.0-” when the meter is zeroed and ready for measurement.

• Remove the cuvette and add the content of one packet of
HI 93723-0 reagent. Replace the cap and shake vigorously
for about 10 seconds.

Chromium VI HR

42 43

INTERFERENCES

Interference may be caused by:
Vanadium above 1 ppm. However, waiting 10 minutes before reading, the interference is removed
Iron above 1 ppm
Mercurous and mercuric ions cause slight inhibition of the reaction.

Chromium VI HR

CHROMIUM VI LOW RANGE

SPECIFICATIONS

Range 0 to 300 µg/L
Resolution 1 µg/L
Accuracy ±1 µg/L ±4% of reading at 25 °C
Typical EMC ±1 µg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the

ASTM Manual of Water and Environmental Technology, D1687-92

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

REQUIRED REAGENTS

Code Description Quantity

HI 93749-0 Powder reagent 1 packet

REAGENT SETS

HI 93749-01 Reagents for 100 tests
HI 93749-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the
the

Method Selection

Chromium VI LR

section (see page 12).

method using the procedure described in

• 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.

10 mL

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 6 minutes and press Read. When the timer ends the meter will perform the reading. The instrument
displays concentration in

µµ

µg/L of chromium VI.

µµ

,

• Press s or t to access the second level functions.

• Press the Chem Frm key to convert the result in µg/L of Chromate (CrO

2

¯) and Dichromate (Cr2O

4

2

¯).

7

• Press s or t to return to the measurement screen.

INTERFERENCES

Interference may be caused by:
Vanadium above 1 ppm. However, waiting 10 minutes before reading, the interference is removed.
Iron above 1 ppm
Mercurous and mercuric ions cause slight inhibition of the reaction.

• Remove the cuvette and add the content of one packet of
HI 93749-0 reagent. Replace the cap and shake vigorously
for about 10 seconds.

Chromium VI LR

44 45

Chromium VI LR

COLOR OF WATER

SPECIFICATIONS

Range 0 to 500 PCU (Platinum Cobalt Units)
Resolution 1 PCU
Accuracy ±10 PCU ±5% of reading at 25 °C
Typical EMC ± 1 PCU

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 420 nm
Method Adaptation of the

th

18

edition

REQUIRED ACCESSORIES

0.45 µm membrane for true color measurement.

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

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

Color of Water

the

Method Selection

section (see page 12).

the cap. This is the blank.

Standard Methods for the Examination of Water and Wastewater,

, Colorimetric Platinum Cobalt method.

method using the procedure described in

10 mL

# 1

• Fill the second cuvette up to the mark with unfiltered sample
and replace the cap. This is the apparent color.

• Filter 10 mL of sample through a filter with a 0.45 µm

membrane into the third cuvette, up to the 10 mL mark and
replace the cap. This is the true color.

• Insert the apparent color cuvette (# 2) into the instrument and
close the lid.

• Press Read to start the reading.

• The meter displays the value of apparent color in PCU.

10 mL

# 2

# 3

# 2

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

# 1

• Press the Zero key. The meter will show “-0.0-” when the meter is zeroed and ready for measurement.

• Remove the blank.

Color of Water

46 47

• Remove the cuvette, insert the true color cuvette (# 3) into the
instrument and ensure that the notch on the cap is positioned

# 3

securely into the groove.

• Press Read to start the reading. The meter displays the value of true color in PCU.

Color of Water

COPPER HIGH RANGE

• Remove the cuvette.

SPECIFICATIONS

Range 0.00 to 5.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.02 mg/L ±4% of reading at 25 °C
Typical EMC ±0.01 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 575 nm
Method Adaptation of the

reagent causes a purple tint in the sample.

EPA method.

The reaction between copper and the bicinchoninate

REQUIRED REAGENTS

Code Description Quantity

HI 93702-0 Bicinchoninate 1 packet

REAGENT SETS

HI 93702-01 Reagents for 100 tests
HI 93702-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Fill the cuvette with 10 mL of unreacted sample (up to the mark)

Copper HR

Method Selection

and replace the cap.

section (see page 12).

method using the procedure described in the

• 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, wait
for 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.

10 mL

• 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 HR

48 49

INTERFERENCES

Interference may be caused by:
Silver
Cyanide
For samples overcoming buffering capacity of reagent (around pH 6.8), pH should be adjusted between
6 and 8.

Copper HR

COPPER LOW RANGE

• Remove the cuvette.

SPECIFICATIONS

Range 0 to 1000 µg/L
Resolution 1 µg/L
Accuracy ±10 µg/L ±5% of reading at 25 °C
Typical EMC ±1 µg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 575 nm
Method Adaptation of the

reagent causes a purple tint in the sample.

EPA method.

The reaction between copper and the bicinchoninate

REQUIRED REAGENTS

Code Description Quantity

HI 95747-0 Bicinchoninate 1 packet

REAGENT SETS

HI 95747-01 Reagents for 100 tests
HI 95747-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Fill the cuvette with 10 mL of unreacted sample (up to the

Copper LR

method using the procedure described in

the

Method Selection

mark) and replace the cap.

section (see page 12).

10 mL

• 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, wait
for 45 seconds and press Read. When the timer ends the meter will perform the reading.

• The instrument displays the results in

µµ

µg/L of copper.

µµ

• 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 LR

50 51

INTERFERENCES

Interference may be caused by:
Silver
Cyanide
For samples overcoming buffering capacity of reagent (around pH 6.8), pH should be adjusted between
6 and 8.

Copper LR

CYANURIC ACID

SPECIFICATIONS

Range 0 to 80 mg/L
Resolution 1 mg/L
Accuracy ±1 mg/L ±15% of reading at 25 °C
Typical EMC ±1 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the turbidimetric method. The reaction between cyanuric acid and the

reagent causes a white suspension in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93722-0 Powder reagent 1 packet

REAGENT SETS

HI 93722-01 Reagents for 100 tests
HI 93722-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the
described in the

• Fill the cuvette with 10 mL of unreacted sample (up to the
mark) and replace the cap.

Cyanuric Acid

Method Selection

method using the procedure

section (see page 12).

10 mL

• Add the content of one packet of HI 93722-0 Cyanuric Acid
Reagent. Replace the cap and shake gently for about
10 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, wait
for 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.

• 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.

Cyanuric Acid

52 53

Cyanuric Acid

FLUORIDE

SPECIFICATIONS

Range 0.00 to 2.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.03 mg/L ±3% of reading at 25 °C
Typical EMC ±0.01 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 575 nm
Method Adaptation of the

th

18

edition

causes a red tint in the sample.

REQUIRED REAGENT

Code Description Quantity

HI 93729-0 SPADNS Reagent 4 mL

REAGENT SETS

HI 93729-01 Reagents for 100 tests
HI 93729-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

Fluoride

the

Method Selection

method using the procedure described in

section (see page 12).

Standard Methods for the Examination of Water and Wastewater,

, SPADNS method. The reaction between fluoride and the liquid reagent

• Press Timer and the display will show the countdown prior to zeroing the blank or, alternatively, wait
for two minutes and press Zero. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.

• Remove the cuvette.

# 2

• Insert the other cuvette (# 2) with the reacted sample into the
instrument.

• Press Read to start reading. The instrument displays the results in mg/L of fluoride.

• Add 2 mL of HI 93729-0 SPADNS Reagent to two cuvettes.

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

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

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

Fluoride

54 55

# 1

# 1

# 2

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 of distilled water and
8 mL of sample.

2 mL

INTERFERENCES

Interferences may be caused by:

10 mL10 mL

Alkalinity (as CaCO3) above 5000 mg/L
Aluminum above 0.1 mg/L
Iron, ferric above 10 mg/L
Chloride above 700 mg/L
Phosphate, ortho above 16 mg/L
Sodium hexametaphosphate above 1.0 mg/L
Sulfate above 200 mg/L
Highly colored and turbid samples may require distillation
Highly alkaline samples can be neutralized with nitric acid.

Fluoride

CALCIUM HARDNESS

SPECIFICATIONS

Range 0.00 to 2.70 mg/L
Resolution 0.01 mg/L
Accuracy ±0.11 mg/L ±5% of reading at 25 °C
Typical EMC ±0.01 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the

th

18

edition,

Standard Methods for the Examination of Water and Wastewater,

Calmagite method. The reaction between calcium and reagents causes a

reddish-violet tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93720A-0 Ca & Mg indicator 0.5 mL
HI 93720B-0 Alkali solution 0.5 mL
HI 93720C-0 EGTA solution 1 drop

REAGENT SETS

HI 93720-01 Reagents for 100 tests
HI 93720-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Rinse a graduated beaker several times with unreacted

Calcium Hardness

described in the

Method Selection

method using the procedure

section (see page 12).

sample, before filling it to the 50 mL mark with the
sample.

• Add 1 drop of HI 93720C-0 EGTA solution to one cuvette (# 1), replace
the 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 for
measurement.

• Remove the blank and insert the second cuvette (# 2)

# 2

into the instrument.

• Press Read to start the reading. The instrument displays concentration in mg/L of calcium

hardness, as CaCO3.

• Add 0.5 mL of HI 93720A-0 Calcium indicator solution
and swirl to mix.

• Add 0.5 mL of HI 93720B-0 Alkali solution and swirl to
mix. Use this solution to rinse 2 cuvettes before filling them
up to the 10 mL mark.

Hardness Ca

56 57

• 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).

# 1 # 2

Hardness Ca

• Press the Unit key to change the current measurement unit. The results can be converted to French

degrees (°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 syringes or sample cells. To

test 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 are

greater than the range of this meter.
This problem can be overcome through dilution. Dilutions must be performed with hardness-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 empty, and inject 0.5
mL 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.

MAGNESIUM HARDNESS

SPECIFICATIONS

Range 0.00 to 2.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.11 mg/L ±5% of reading at 25 °C
Typical EMC ±0.02 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the

th

18

edition,

causes a reddish-violet tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93719A-0 Mg indicator 0.5 mL
HI 93719B-0 Alkali solution 0.5 mL
HI 93719C-0 EDTA solution 1 drop
HI 93719D-0 EGTA solution 1 drop

REAGENT SETS

HI 93719-01 Reagents for 100 tests
HI 93719-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the
described in the

• Rinse a graduated beaker several times with unreacted sample,
before filling it to the 50 mL mark with the sample.

Magnesium Hardness

Method Selection

Standard Methods for the Examination of Water and Wastewater,

EDTA colorimetric method. The reaction between magnesium and reagents

method using the procedure

section (see page 12).

Hardness Ca

• 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.

58 59 Hardness Mg

• Fill 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 several
times 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 cuvette
several times to mix. This is the sample.

10 mL

# 1

# 2

10 mL

# 2

• 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 French

degrees (°f), German degrees (°dH) and English degrees (°E).

# 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 for
measurement.

# 2

• Remove the blank (# 1), insert the sample (# 2) into
the instrument, and close the lid.

• Press Read to start the reading. The instrument displays concentration in mg/L of magnesium

hardness, as CaCO3.

• Press s or t to return to the measurement screen.

Note: This test will detect any magnesium contamination in the beakers, measuring syringes or sample
cells. 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 to
measure samples with high hardness, follow dilution procedure explained on page 58 (Ca Hardness).

INTERFERENCES

Interference may be caused by excessive amounts of heavy metals.

Hardness Mg

60 61

Hardness Mg

HYDRAZINE

SPECIFICATIONS

Range 0 to 400 µg/L
Resolution 1 µg/L

Accuracy ±4% of full scale reading at 25 °C

Typical EMC ±2 µg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 420 nm
Method Adaptation of the

D1385-88,

ASTM Manual of Water and Environmental Technology, method

p-Dimethylaminobenzaldehyde method. The reaction between hydrazine

and the liquid reagent causes a yellow tint in the sample.

REQUIRED REAGENT

Code Description Quantity

HI 93704-0 Liquid Reagent 24 drops

REAGENT SETS

HI 93704-01 Reagents for 100 tests
HI 93704-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Fill one cuvette up to the mark with 10 mL of distilled water.

• Place the cap, insert the cuvette # 1 into the holder and

the

Method Selection

close the lid.

Hydrazine

method using the procedure described in
section (see page 12).

# 1

10 mL

# 1

• Add 12 drops of the HI 93704-0 reagent to
each cuvette. Replace the caps and shake
gently to mix (about 30 seconds).

# 1 # 2

# 1

• 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.

# 2

• Insert the cuvette with the reacted sample (# 2) into the
instrument and close the lid.

• Press Read to start the reading. The instrument displays concentration in

µµ

µg/L of hydrazine.

µµ

• Press the Blank key to start adjusting the light level. The display will show “Blank done” when the

meter 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.

Hydrazine

62 63

10 mL

# 2

INTERFERENCES

Interference may be caused by:
Highly colored samples
Highly turbid samples
Aromatic amines

Hydrazine

IODINE

SPECIFICATIONS

Range 0.0 to 12.5 mg/L
Resolution 0.1 mg/L
Accuracy ±0.1 mg/L ±5% of reading at 25 °C
Typical EMC ±0.1 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the

18

th

edition

Standard Methods for the Examination of Water and Wastewater,

, DPD method. The reaction between iodine and the reagent causes a pink

tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93718-0 DPD Reagent 1 packet

REAGENT SETS

HI 93718-01 Reagents for 100 tests
HI 93718-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Fill the cuvette with 10 mL of unreacted sample (up to

• 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 ready for

Iodine

method using the procedure described in

the

Method Selection

section (see page 12).

the mark) and replace the cap.

measurement.

10 mL

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 2 minutes and 30 seconds and press Read. When the timer ends the meter will perform 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 for approximately

2 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,

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

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

Iodine

64 65

Iodine

IRON HIGH RANGE

SPECIFICATIONS

Range 0.00 to 5.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.04 mg/L ±2% of reading at 25 °C
Typical EMC ±0.01 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the

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

EPA Phenantroline method 315B,

for natural and treated waters.

REQUIRED REAGENTS

Code Description Quantity

HI 93721-0 Powder Reagent 1 packet

REAGENT SETS

HI 93721-01 Reagents for 100 tests
HI 93721-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Fill the cuvette with 10 mL of unreacted sample (up to

• Place the cuvette into the holder and close the lid.

Iron HR

method using the procedure described

in the

Method Selection

the mark) and replace the cap.

section (see page 12).

10 mL

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 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 ppm
Calcium above 10000 ppm (as CaCO3)
Magnesium above 100000 ppm (as CaCO3)
Chloride above 185000 ppm.

• Press the Zero key. The display will show “-0.0-” the meter is zeroed and ready for measurement.

• Remove the cuvette and add the content of one packet of
HI 93721-0 reagent. Replace the cap and shake until dissolution
is complete.

Iron HR

66 67

Iron HR

IRON LOW RANGE

SPECIFICATIONS

Range 0 to 400 µg/L
Resolution 1 µg/L
Accuracy ±10 µg/L ±8% of reading at 25 °C
Typical EMC ±1 µg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 575 nm
Method Adaptation of the TPTZ Method. The reaction between iron and the reagent causes a

violet tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93746-0 TPTZ Reagent 2 packets

REAGENT SETS

HI 93746-01 Reagents for 50 tests
HI 93746-03 Reagents for 150 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the
the

Method Selection

Iron LR

method using the procedure described in

section (see page 12).

• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for

measurement.

• Remove the cuvette.

• Fill another graduated mixing cylinder up to the 25 mL

25 mL

mark with the sample.

• Add the content of one packet of HI 93746-0 TPTZ reagent,
close the cylinder and shake vigorously for 30 seconds. This
is the reacted sample.

• Fill a cuvette with 10 mL of the reacted sample up to the
mark and replace the cap.

10 mL

• Fill one graduated mixing cylinder up to the 25 mL mark
with deionized water.

• Add the content of one packet of HI 93746-0 TPTZ
reagent, close the cylinder and shake vigorously for
30 seconds. This is the blank.

• Fill a cuvette with 10 mL of the blank up to the mark and
replace the cap.

• Place the cuvette into the holder and close the lid.

Iron LR

68 69

10 mL

25 mL

• Insert the sample into the instrument.

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 30 seconds and press Read. When the timer ends the meter will perform the reading. The
instrument displays concentration in

µµ

µg/L of iron.

µµ

Iron LR

INTERFERENCES

Interference may be caused by:
Cadmium above 4.0 mg/L

3+

Chromium
Chromium
Cobalt above 0.05 mg/L
Copper above 0.6 mg/L
Cyanide above 2.8 mg/L
Manganese above 50.0 mg/L
Mercury above 0.4 mg/L
Molybdenum above 4.0 mg/L
Nickel above 1.0 mg/L
Nitrite ion above 0.8 mg/L
Sample pH should be between 3 and 4 to avoid developed color to

fade or turbidity formation.

above 0.25 mg/L

6+

above 1.2 mg/L

MAGNESIUM

SPECIFICATIONS

Range 0 to 150 mg/L
Resolution 5 mg/L
Accuracy ±5 mg/L ±3% of reading at 25 °C
Light Source Tungsten lamp with narrow band interference filter @ 466 nm
Method Adaptation of the Calmagite method

REQUIRED REAGENTS

Code Description Quantity

HI 93752A-0 Mg Magnesium Buffer Reagent 1 mL
HI 93752B-0 Mg Magnesium Indicator Reagent 9 mL

REAGENT SETS

HI 937520-01 Reagents for 50 tests
HI 937520-03 Reagents for 150 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

Note: for sample preparation follow the COLORED OR TURBID SAMPLES

procedure on page 17.

• Select the

Magnesium

Method Selection

method using the procedure described in the

section (see page 12).

.

Iron LR

• Using one 1 mL syringe add exactly 1.00 mL of HI 93752A-0

Mg Buffer reagent to the cuvette and use the pipette to fill the
cuvette up to the 10 mL mark with the HI 93752B-0 Mg
Indicator reagent.

• Replace 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-” when the meter is zeroed and ready for

measurement.

70 71

Magnesium

• Remove the cuvette.

0.5 mL

of sample

• Using 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, wait
for 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+).

MANGANESE HIGH RANGE

SPECIFICATIONS

Range 0.0 to 20.0 mg/L
Resolution 0.1 mg/L
Accuracy ±0.2 mg/L ±3% of reading at 25 °C
Typical EMC ±0.1 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the

18

th

edition,

a pink tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93709A-0 Citrate 1 packet
HI 93709B-0 Sodium periodate 1 packet

REAGENT SETS

HI 93709-01 Reagents for 100 tests
HI 93709-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Fill the cuvette with 10 mL of unreacted sample (up to the

Manganese HR

the

Method Selection

section (see page 12).

mark) and replace the cap.

Standard Methods for the Examination of Water and Wastewater,

Periodate method. The reaction between manganese and reagents causes

method using the procedure described in

10 mL

INTERFERENCES

Interferences may be caused by:
Acidity (as CaCO3) above 1000 mg/L
Alkalinity (as CaCO3) above 1000 mg/L
Calcium (Ca2+) above 200 mg/L
Iron must be absent
Aluminum must be absent
Copper must be absent

Magnesium

• 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 ready for

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 for
2 minutes.

72 73

Manganese HR

• Add the content of one packet of HI 93709B-0 Sodium
Periodate reagent. Replace the cap and invert to mix with
gently 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, wait
for 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.

MANGANESE LOW RANGE

SPECIFICATIONS

Range 0 to 300 µ g/L
Resolution 1 µg/L
Accuracy ±10 µg/L ±3% of reading at 25 °C
Typical EMC ±1 µg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 575 nm
Method Adaptation of the PAN Method. The reaction between manganese and the reagents

causes an orange tint in the sample.

REQUIRED REAGENT

Code Description Quantity

HI 93748A-0 Ascorbic acid 2 packets
HI 93748B-0 Alkaline-cyanide sol. 0.40 mL
HI 93748C-0 0.1% PAN indicator 2 mL
HI 93703-51 Dispersing Agent 4-6 drops

REAGENT SETS

HI 93748-01 Reagents for 50 tests
HI 93748-03 Reagents for 150 tests

For other accessories see page 124.

• 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) and
permanganate (MnO4).

• Press s or t to return to the measurement screen.

INTERFERENCES

Interference may be caused by:
Calcium above 700 mg/L
Chloride above 70000 mg/L
Iron above 5 mg/L
Magnesium above 100000 mg/L.

Manganese HR

74 75

MEASUREMENT PROCEDURE

• Select the

• 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).

• Add the content of one packet of HI 93748A-0 Ascorbic acid to

Manganese LR

page 12).

each cuvette, replace the caps and shake gently until completely
dissolved.

method using the procedure described in the

Method Selection

10 mL

10 mL

section (see

Manganese LR

• Add 0.2 mL of the HI 93748B-0 Alkaline-cyanide
reagent solution to each cuvette, replace the caps and
invert gently to mix for about 30 seconds.

• Insert the second cuvette with the reacted sample into the instrument.

• Add 1 mL of the HI 93748C-0 0.1% PAN indicator
solution to each cuvette, replace the caps and shake
gently.

• Add 3 drops of Dispersing Agent (HI 93703-51) to each
cuvette, replace the caps and invert gently to mix for
about 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 for
2 minutes and then press Zero. The display will show ”-0.0-” when the meter is zeroed and ready for
measurement.

• Press Read to start the reading. The instrument displays the results in

µµ

µg/L of manganese.

µµ

• Press s or t to access the second level functions.

• Press the Chem Frm key to convert the result in µg/L of potassium permanganate (KMnO

permanganate (MnO4).

• Press s or t to return to the measurement screen.

INTERFERENCES

Interference may be caused by:
Aluminum above 20 mg/L
Cadmium above 10 mg/L
Calcium above 200 mg/L as CaCO
Cobalt above 20 mg/L
Copper above 50 mg/L
Iron above 10 mg/L
Lead above 0.5 mg/L
Magnesium above 100 mg/L as CaCO
Nickel above 40 mg/L
Zinc above 15 mg/L.

3

3

) and

4

Manganese LR

76 77

Manganese LR

MOLYBDENUM

SPECIFICATIONS

Range 0.0 to 40.0 mg/L
Resolution 0.1 mg/L
Accuracy ±0.3 mg/L ±5% of reading at 25 °C
Typical EMC ±0.1 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 420 nm
Method Adaptation of the mercaptoacetic acid method. The reaction between molybdenum and

the reagents causes a yellow tint in the sample.

REQUIRED REAGENT

Code Description Quantity

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

REAGENT SETS

HI 93730-01 Reagents for 100 tests
HI 93730-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the
described in the

• Fill the cuvette with 10 mL of unreacted sample (up to
the mark) and replace the cap.

Molybdenum

Method Selection

method using the procedure

section (see page 12).

10 mL

• Fill one graduated mixing cylinder up to the 25 mL
mark with the sample.

• Add the content of one packet of HI 93730A-0
molybdenum reagent, close the cylinder and invert
it several times until completely dissolved.

• Add the content of one packet of HI 93730B-0
molybdenum reagent to the cylinder, close and
invert it several times until completely dissolved.

• Add the content of one packet of HI 93730C-0
molybdenum reagent to the cylinder, close and
shake it vigorously.

25 mL

• 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 ready for

measurement.

Molybdenum

78 79

• Fill an empty cuvette with 10 mL of sample up to
the mark and replace the cap.

• Insert the cuvette into the instrument.

10 mL

Molybdenum

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for five minutes and press Read. When the timer ends the meter will perform the reading. The
instrument 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/L
Copper above 10 mg/L
Iron above 50 mg/L
Nickel above 50 mg/L
Nitrite, as NO2¯
Sulfate above 200 mg/L
Highly buffered samples or with extreme pH may exceed the buffering capacity of the reagents.

NICKEL HIGH RANGE

SPECIFICATIONS

Range 0.00 to 7.00 g/L
Resolution 0.01 g/L
Accuracy ±0.07 ±4% of reading at 25 °C
Typical EMC ±0.02 g/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 575 nm
Method Adaptation of the photometric method. The reaction between nickel and the reagent

causes a blue tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93726-0 Powder reagent 1 packet

REAGENT SETS

HI 93726-01 Reagents for 100 tests
HI 93726-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Fill the cuvette up to the mark with 10 mL of unreacted sample

• 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 ready for

Nickel HR

and replace the cap.

measurement.

method using the procedure described in the

Method Selection

section (see page 12).

10 mL

Molybdenum

80 81

Nickel HR

• Remove the cuvette and add the content of one packet of
HI 93726-0 reagent. Replace the cap and shake gently
until completely dissolved.

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 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 LOW RANGE

SPECIFICATIONS

Range 0.000 to 1.000 mg/L
Resolution 0.001 mg/L
Accuracy ±0.010 mg/L ±7% of reading at 25 °C
Typical EMC ±0.001 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 575 nm
Method Adaptation of the PAN method. The reaction between nickel and the reagents causes

an orange tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93740A-0 Phthalate-phosphate 2 packets
HI 93740B-0 0.3% PAN indicator 2 mL
HI 93740C-0 EDTA 2 packets
HI 93703-51 Dispersing Agent 4-6 drops (only when necessary, see note)

REAGENT SETS

HI 93740-01 Reagents for 50 tests
HI 93740-03 Reagents for 150 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the
described in the

Note: for best results perform your tests between 20-24°C.

• Fill one graduated beaker with 25 mL of deionized
water (blank) and another one with 25 mL of sample.

Nickel LR

method using the procedure

Method Selection

section (see page 12).

Nickel HR

• Add the content of one packet of HI 93740A-0
Phthalate-phosphate reagent to each beaker. Cap
and swirl gently until the reagent is dissolved.

Note: If sample contains iron (Fe3+), it is important
that all powder be dissolved completely before continuing
with following step.

• Add 1 mL of HI 93740B-0 0.3% PAN solution to each
beaker, cap and swirl to mix.

82 83 Nickel LR

• Press Timer and the display will show a countdown prior to adding reagent C or, alternatively, wait

for 15 minutes. Add one packet of HI 93740C-0 EDTA reagent to each beaker, cap and swirl to mix
until completely dissolved.

• Fill one cuvette up to the mark with 10 mL of the blank.

10 mL

• 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 ready for

measurement.

INTERFERENCES

Interference may be caused by:
Co2+ must not be present
Fe2+ must not be present
Al3+ above 32 mg/L
Ca2+ above 1000 mg/L (as CaCO3)
Cd2+ above 20 mg/L
Cl¯ above 8000 mg/L
Cr3+ above 20 mg/L
Cr6+ above 40 mg/L
Cu2+ above 15 mg/L
F¯ above 20 mg/L
Fe3+ above 10 mg/L
K+ above 500 mg/L
Mg2+ above 400 mg/L
Mn2+ above 25 mg/L
Mo6+ above 60 mg/L
Na+ above 5000 mg/L
Pb2+ above 20 mg/L
Zn2+ above 30 mg/L

• Fill a second cuvette up to the mark with 10 mL of the reacted sample.

10 mL

• Insert the second cuvette into the instrument.

• Press Read to start the reading. The instrument displays the results in mg/L of nickel.

Note: a temperature above 30°C may cause turbidity. In this case, before zeroing and taking
readings, add 2-3 drops of Dispersing Agent (HI 93703-51) to each cuvette and swirl until turbidity
is removed.

Nickel LR

84 85

Nickel LR

NITRATE

SPECIFICATIONS

Range 0.0 to 30.0 mg/L
Resolution 0.1 mg/L
Accuracy ±0.5 mg/L ±10% of reading at 25 °C
Typical EMC ±0.1 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the cadmium reduction method. The reaction between nitrate and the

reagent causes an amber tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93728-0 Powder reagent 1 packet

REAGENT SETS

HI 93728-01 Reagents for 100 tests
HI 93728-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Using the pipette, fill the cuvette with 6 ml of sample, up to

Nitrate

method using the procedure described in

the

Method Selection

half of its height, and replace the cap.

section (see page 12).

6 mL

• Replace the cap and immediately shake vigorously up
and down for exactly 10 seconds. Continue to mix by
inverting the cuvette gently for 50 seconds, while
taking care not to induce air bubbles. Powder will not
completely dissolve. Time and way of shaking could
sensitively affect the measurement.

• Reinsert the cuvette into the instrument, taking care
not to shake it.

• Press Timer and the display will show the countdown
prior to the measurement or, alternatively, wait for 4
minutes 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 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¯).

• 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 ready for

measurement.

• Remove the cuvette and add the content of one packet of
HI 93728-0 reagent.

Nitrate

86 87 Nitrate

• Press s or t to return to the measurement screen.

INTERFERENCES

Interference may be caused by:
Ammonia and amines, as urea and primary aliphatic amines
Chloride above 100 ppm
Chlorine above 2 ppm
Copper
Iron(III)
Strong oxidizing and reducing substances
Sulfide must be absent

NITRITE HIGH RANGE

SPECIFICATIONS

Range 0 to 150 mg/L
Resolution 1 mg/L
Accuracy ±4 mg/L ±4% of reading at 25 °C
Typical EMC ±1 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 575 nm
Method Adaptation of the Ferrous Sulfate method. The reaction between nitrite and the

reagent causes a greenish-brown tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93708-0 Powder reagent 1 packet

REAGENT SETS

HI 93708-01 Reagents for 100 tests
HI 93708-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Fill the cuvette up to the mark with 10 mL of unreacted

• Place the cuvette into the holder and close the lid.

Nitrite HR

method using the procedure described

in the

Method Selection

sample and replace the cap.

section (see page 12).

10 mL

• Add the content of one packet of HI 93708-0 reagent.
Replace the cap and shake gently until completely dissolved.

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 10 minutes and press Read. When the timer ends the meter will perform the reading. The
instrument displays concentration in mg/L of nitrite.

• Press s or t to access the second level functions.

• Press the Chem Frm key to convert the result in mg/L of nitrogen-nitrite (NO2¯-N) and sodium nitrite
(NaNO2).

• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for

measurement.

• Remove the cuvette.

Nitrite HR

88 89

• Press s or t to return to the measurement screen.

Nitrite HR

NITRITE LOW RANGE

SPECIFICATIONS

Range 0.00 to 1.15 mg/L
Resolution 0.01 mg/L
Accuracy ±0.06 mg/L ±4% of reading at 25 °C
Typical EMC ±0.01 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the

the reagent causes a pink tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93707-0 Powder reagent 1 packet

REAGENT SETS

HI 93707-01 Reagents for 100 tests
HI 93707-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Fill the cuvette up to the mark with 10 mL of unreacted

Nitrite LR

method using the procedure described

in the

Method Selection

sample (up to the mark) and replace the cap.

EPA Diazotization method 354.1

section (see page 12).

. The reaction between nitrite and

10 mL

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 6 minutes and press Read. When the timer ends the meter will perform the reading. The instrument
displays concentration in mg/L of nitrite.

• Press s or t to access the second level functions.

• Press the Chem Frm key to convert the result in mg/L of nitrogen-nitrite (NO2¯-N) and sodium nitrite
(NaNO2).

• 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 ready for

measurement.

• Remove the cuvette.

• Add the content of one packet of HI 93707-0 reagent.
Replace the cap and shake gently for about 15 seconds.

Nitrite LR

90 91

• Press s or t to return to the measurement screen.

INTERFERENCES

Interference may be caused by the following ions:
ferrous, ferric, cupric, mercurous, silver, antimonious, bismuth, auric, lead, metavanadate and chloroplatinate.
Strongly reducing and oxidizing reagents.
High levels of nitrate (above 100 mg/L) could yield falsely high readings due to a minute amount of

reduction to nitrite that could occur at these levels.

Nitrite LR

DISSOLVED OXYGEN

SPECIFICATIONS

Range 0.0 to 10.0 mg/L
Resolution 0.1 mg/L
Accuracy ±0.4 mg/L ±3% of reading at 25 °C
Typical EMC ± 0.1 mg/L
Deviation
Light Source Tungsten lamp with narrow band interference filter @ 420 nm
Method Adaptation of the

18th edition,

and the reagents causes a yellow tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93732A-0 Reagent A 5 drops
HI 93732B-0 Reagent B 5 drops
HI 93732C-0 Reagent C 10 drops

REAGENT SET

HI 93732-01 Reagents for 100 tests
HI 93732-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the
the

Method Selection

Dissolved Oxygen

section (see page 12).

Standard Methods for the Examination of Water and Wastewater,

Azide modified Winkler method. The reaction between dissolved oxygen

method using the procedure described in

• Let the sample stand and the flocculent agent will start to settle.

• After approximately 2 minutes, when the upper half of the bottle becomes limpid, add
10 drops of HI 93732C-0.

• Replace the cap and invert the bottle until the settled flocculent dissolves completely.
The sample is ready for measurement when it is yellow and completely limpid.

10 mL

• Fill the cuvette up to the mark with 10 mL of the unreacted
(original) sample, and replace the cap. This is 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 ready for measurement.

• Fill one 60 mL glass bottle completely with the unreacted sample.

• Replace the cap and ensure that a small part of the sample spills
over.

• Remove the cap and add 5 drops of HI 93732A-0 and 5 drops of
HI 93732B-0.

• Add more sample, to fill the bottle completely. Replace the cap
again and ensure that a part of the sample spills over. This is to
make sure that no air bubbles have been trapped inside, which
could alter the reading.

• Invert several times the bottle. The sample becomes orange-yellow
and a flocculent agent will appear.

Dissolved Oxygen

92 93

• Remove the cuvette.

• Fill another cuvette up to the mark with 10 mL of the reacted
sample and replace the cap.

• Reinsert the cuvette into the instrument.

• Press Read to start the reading. The instrument will display the results in mg/L of dissolved oxygen.

INTERFERENCES

Interferences may be caused by reducing and oxidizing materials.

Dissolved Oxygen

OZONE

SPECIFICATIONS

Range 0.00 to 2.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.02 mg/L ±3% of reading at 25 °C
Typical EMC ±0.01 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Colorimetric DPD Method. The reaction between ozone and the DPD reagent causes a

pink tint in the sample.

REQUIRED REAGENTS

Code Description Quantity/test

HI 93757-0 DPD Powder Reagent 1 packet
HI 93703-52-0 Glycine Powder (Optional Reagent) 1 packet

REAGENT SETS

HI 93757-01 Reagents for 100 tests
HI 93757-03 Reagents for 300 tests
HI 93703-52 Glycine Powder, Optional Reagent for 100 tests

For other accessories see page 124.

IMPORTANT NOTE: Chlorine is a strong interferent for ozone determination. If the sample is suspected to
contain chlorine residues (free or total chlorine), please follow the alternative measurement procedure
described below:

• Perform the Standard Measurement Procedure and take note of the reading:

• On a fresh sample perform the Additional Measurement Procedure and take note of the reading:

• Subtract reading B from reading A to obtain the ozone concentration in mg/L:
mg/L (O3) =

value A

–

value B

.

STANDARD MEASUREMENT PROCEDURE

• Select the
in the

Method Selection

Ozone

method using the procedure described

section (see page 12).

value A

10 mL

.

value B

• Press the Zero key. The display will show “-0.0-” the meter is zeroed and ready for measurement.

• Remove the cuvette.

• Add the content of one packet of HI 93757-0 Ozone
Reagent. Replace the cap and shake gently for
20 seconds.

• Replace the cuvette into the holder and close the lid.

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 2 minutes and press Read. When the timer ends the meter will perform the reading.

• The instrument displays concentration in mg/L of ozone (chlorine free samples only).

.

ADDITIONAL MEASUREMENT PROCEDURE

For samples containing chlorine

• Select the
the

Method Selection

Ozone

method using the procedure described in

section (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.

Ozone

94 95

• 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.

Ozone

• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for

measurement.

• Remove the cuvette.

• Add the content of one packet of the optional reagent
HI 93703-52-0 Glycine Powder. Replace the cap and
shake gently until completely dissolved.

• Add the content of one packet of HI 93757-0 Ozone
Reagent. Replace the cap and shake gently for 20 seconds.

• Replace the cuvette into the holder and close the lid.

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 2 minutes and press Read. When the timer ends the meter will perform the reading.

pH

SPECIFICATIONS

Range 6.5 to 8.5 pH
Resolution 0.1 pH
Accuracy ±0.1 pH at 25 °C
Typical EMC ±0.1 pH

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the Phenol Red method. The reaction with the reagent causes a yellow

REQUIRED REAGENTS

Code Description Quantity

HI 93710-0 Phenol Red Indicator 5 drops

REAGENT SETS

HI 93710-01 Reagents for 100 pH tests
HI 93710-03 Reagents for 300 pH tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the pH method using the procedure described in the

Method Selection

• Fill the cuvette with 10 mL of unreacted sample (up to the
mark) and replace the cap.

to red tint in the sample.

section (see page 12).

10 mL

• The instrument displays a concentration value refering to chlorine interference. Subtract this value from

the reading from the Standard Measurement Procedure: this will be the concentration in mg/L of

ozone in the sample.

INTERFERENCES

Interference may be caused by: Bromine, Chlorine Dioxide, Iodine.
Alkalinity above 250 mg/L CaCO3 will not reliably develop the full amount of color or it may rapidly fade.

To resolve this, neutralize the sample with diluted HCl.
In case of water with hardness greater than 500 mg/L CaCO3, shake the sample for approximately
2 minutes after adding the powder reagent.

Ozone

96 97

• 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 ready for
measurement.

pH

• Remove the cuvette and add 5 drops of HI 93710-0 Phenol
Red Indicator. Replace the cap and mix the solution.

• Reinsert the cuvette into the instrument.

• Press the Read key to start the reading. The instrument displays the pH value.

PHOSPHATE HIGH RANGE

SPECIFICATIONS

Range 0.0 to 30.0 mg/L
Resolution 0.1 mg/L
Accuracy ±1 mg/L ±4% of reading at 25 °C
Typical EMC Dev. ±0.1 mg/L
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the

th

18

edition,

causes a blue tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93717A-0 Molybdate 10 drops
HI 93717B-0 Reagent B 1 packet

REAGENT SETS

HI 93717-01 Reagents for 100 tests
HI 93717-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Fill the cuvette with 10 mL of unreacted sample (up to the

in the

Method Selection

Phosphate HR

method using the procedure described

section (see page 12).

mark) and replace the cap.

Standard Methods for the Examination of Water and Wastewater,

Amino Acid method. The reaction between phosphate and reagents

10 mL

• 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 ready for

measurement.

• Remove the cuvette.

• Add 10 drops of HI 93717A-0 Molybdate reagent.

pH

98 99

Phosphate HR

PHOSPHATE LOW RANGE

• Add the content of one packet of HI 93717B-0 Phosphate
HR Reagent B to the cuvette. Replace the cap and shake
gently until completely dissolved.

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 5 minutes and press Read. When the timer ends the meter will perform the reading. The instrument
displays the results in mg/L of phosphate (PO

3

¯).

4

• Press s or t to access the second level functions.

• Press the Chem Frm key to convert the result in mg/L of phosphorus (P) and phosphorus pentoxide
(P2O5).

SPECIFICATIONS

Range 0.00 to 2.50 mg/L
Resolution 0.01 mg/L
Accuracy ±0.04 mg/L ±4% of reading at 25 °C
Typical EMC Dev. ±0.01 mg/L
Light Source Tungsten lamp with narrow band interference filter @ 610 nm
Method Adaptation of the Ascorbic Acid method. The reaction between phosphate and the

reagent causes a blue tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93713-0 Powder reagent 1 packet

REAGENT SETS

HI 93713-01 Reagents for 100 tests
HI 93713-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the
described in the

• Rinse, cap and shake the cuvette several times with
unreacted sample. Fill the cuvette with 10 mL of sample
up to the mark and replace the cap.

• Place the cuvette into the holder and close the lid.

Phosphate LR

Method Selection

method using the procedure

section (see page 12).

10 mL

• Press s or t to return to the measurement screen.

INTERFERENCES

Sulfide
Chloride above 150000 mg/L )
Calcium above 10000 mg/L as CaCO
Magnesium above 40000 mg/L as CaCO
Ferrous iron above 100 mg/L

Phosphate HR

3

3

100 101

• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for measurement.

• Remove the cuvette and add the content of one packet of
HI 93713-0 reagent. Replace the cap and shake gently (for
about 2 minutes) until the powder is completely dissolved.

Phosphate LR

PHOSPHORUS

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 3 minutes and press Read. When the timer ends the meter will perform the reading. The instrument
displays concentration in mg/L of phosphate (PO

3

¯).

4

• Press s or t to access the second level functions.

• Press the Chem Frm key to convert the result in mg/L of phosphorus (P) and phosphorus pentoxide
(P2O5).

SPECIFICATIONS

Range 0.0 to 15.0 mg/L
Resolution 0.1 mg/L
Accuracy ±0.3 mg/L ±4% of reading at 25 °C
Typical EMC Dev. ±0.2 mg/L
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the

th

18

edition,

Standard Methods for the Examination of Water and Wastewater,

Amino Acid method. The reaction between phosphate and reagents

causes a blue tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93706A-0 Molybdate 10 drops
HI 93706B-0 Amino Acid Powder 1 packet

REAGENT SETS

HI 93706-01 Reagents for 100 tests
HI 93706-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the
in the

• 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.

Phosphorus

Method Selection

method using the procedure described

section (see page 12).

10 mL

• Press s or t to return to the measurement screen.

INTERFERENCES

Interference may be caused by:
Iron above 50 mg/L
Silica above 50 mg/L
Silicate above 10 mg/L
Copper above 10 mg/L
Hydrogen sulfide, arsenate, turbid sample and highly buffered samples also interfere.

Phosphate LR

102 103

• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.

• Remove the cuvette.

• Add 10 drops of HI 937O6A-0 Molybdate reagent.

Phosphorus

• Add the content of one packet of HI 93706B-0 Phosphorus
Reagent B (Amino Acid) to the cuvette. Replace the cap
and shake gently until completely dissolved.

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 5 minutes and press Read. When the timer ends the meter will perform the reading. The instrument
displays the results in mg/L of phosphorus (P).

POTASSIUM HIGH RANGE

SPECIFICATIONS

Range 20 to 200 mg/L
Resolution 5 mg/L
Accuracy ±30 mg/L ±7% of reading at 25 °C
Typical EMC ±5 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 610 nm
Method Adaptation of the Turbidimetric Tetraphenylborate method. The reaction between

Potassium and reagents causes turbidity in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93750A-0 Potassium Reagent 6 drops
HI 93750B-0 Powder Reagent 1 packet

REAGENT SETS

HI 93750-01 Reagents for 100 tests
HI 93750-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

Note: for sample preparation follow the CONCENTRATED SAMPLES procedure at page 18.

• Press s or t to access the second level functions.

• Press the Chem Frm key to convert the result in mg/L of phosphate (PO
(P2O5).

• Press s or t to return to the measurement screen.

INTERFERENCES

Interference may be caused by:
Sulfide
Chloride above 150000 mg/L
Calcium above 10000 mg/L as CaCO
Magnesium above 40000 mg/L as CaCO
Ferrous iron above 100 mg/L

Phosphorus

3

3

104 105

3

¯) and phosphorus pentoxide

4

• Select the
described in the

Potassium HR

Method Selection

method using the procedure

section (see page 12).

• Fill the cuvette with 10 mL of sample, up to the mark.

• Add six drops of HI 93750A-0, replace the cap and swirl
the solution.

• Place the cuvette into the holder and close the lid.

10 mL

Potassium HR

• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for

measurement.

• Remove the cuvette and add the content of one packet of
HI 93750B-0 reagent. Replace the cap and gently mix for
one minute by slowly turning the cuvette upside down.

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 2 minutes and press Read. When the timer ends the meter will perform the reading. The instrument

displays the results in mg/L (ppm) of potassium (K).

INTERFERENCES

Interferences may be caused by:
Ammonium above 10 ppm
Calcium above 10000 ppm as CaCO

3

Chloride above 12000 ppm
Magnesium above 8000 ppm as CaCO

3

Sodium above 8000 ppm

POTASSIUM ULTRA HIGH RANGE

For samples containing more than 200 ppm of Potassium: follow the sample preparation procedure
described at page 18 for CONCENTRATED SAMPLES. Then add to the graduated cylinder 20 mL of the
prepared sample (for HR) and fill the cylinder with demineralized water from the Demineralizer Bottle up
to the 100 mL mark.

Follow the MEASUREMENT PROCEDURE at page 105.
Read the result in mg/L of Potassium on the display and multiply the reading by 5 to obtain the actual

concentration of Potassium.

• Press s or t to access the second level functions.

• Press the Chem Frm key to convert the result in mg/L of potassium oxide (K2O).

• Press s or t to return to the measurement screen.

• For ULTRA HIGH RANGE samples: follow the procedure described at page 107.

Potassium HR

106 107

Potassium HR

POTASSIUM MEDIUM RANGE

SPECIFICATIONS

Range 10 to 100 mg/L
Resolution 2.5 mg/L
Accuracy ±15 mg/L ±7% of reading at 25 °C
Typical EMC ±2.5 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 610 nm
Method Adaptation of the Turbidimetric Tetraphenylborate method. The reaction between

Potassium and reagents causes turbidity in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93750A-0 Potassium Reagent 6 drops
HI 93750B-0 Powder Reagent 1 packet

REAGENT SETS

HI 93750-01 Reagents for 100 tests
HI 93750-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

Note: for sample preparation follow the CONCENTRATED SAMPLES procedure at page 18.

• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for measurement.

• Remove the cuvette and add the content of one packet of
HI 93750B-0 reagent. Replace the cap and gently mix for
one minute by slowly turning the cuvette upside down.

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown prior to the
measurement or, alternatively, wait for 2 minutes and press Read.
When the timer ends the meter will perform the reading. The
instrument displays the results in mg/L (ppm) of potassium (K).

• Select the
in the

Method Selection

Potassium MR

method using the procedure described

section (see page 12).

• Fill the cuvette with 10 mL of sample, up to the mark.

• Add six drops of HI 93750A-0, replace the cap and swirl
the solution.

• Place the cuvette into the holder and close the lid.

Potassium MR

108 109

10 mL

• Press s or t to access the second level functions.

• Press the Chem Frm key to convert the result in mg/L of potassium oxide (K2O).

• Press s or t to return to the measurement screen.

INTERFERENCES

Interferences may be caused by:
Ammonium above 10 ppm
Calcium above 10000 ppm as CaCO
Chloride above 12000 ppm
Magnesium above 8000 ppm as CaCO
Sodium above 8000 ppm

3

3

Potassium MR

POTASSIUM LOW RANGE

SPECIFICATIONS

Range 0.0 to 20.0 mg/L
Resolution 0.5 mg/L
Accuracy ±3.0 mg/L ±7% of reading at 25 °C
Typical EMC ±0.5 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 610 nm
Method Adaptation of the Turbidimetric Tetraphenylborate method. The reaction between

Potassium and reagents causes turbidity in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93750A-0 Potassium Reagent 6 drops
HI 93750B-0 Powder Reagent 1 packet

REAGENT SETS

HI 93750-01 Reagents for 100 tests
HI 93750-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

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

• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for measurement.

• Remove the cuvette and add the content of one packet of
HI 93750B-0 reagent. Replace the cap and gently mix for
one minute by slowly turning the cuvette upside down.

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown prior to the
measurement or, alternatively, wait for 2 minutes and press Read.
When the timer ends the meter will perform the reading. The
instrument displays the results in mg/L (ppm) of potassium (K).

• Select the
described in the

Potassium LR

Method Selection

method using the procedure

section (see page 12).

• Fill the cuvette with 10 mL of sample, up to the mark.

• Add 6 drops of HI 93750A-0 Potassium Reagent,
replace the cap and swirl the solution.

• Place the cuvette into the holder and close the lid.

Potassium LR

110 111

10 mL

• Press s or t to access the second level functions.

• Press the Chem Frm key to convert the result in mg/L of potassium oxide (K2O).

• Press s or t to return to the measurement screen.

INTERFERENCES

Interferences may be caused by:
Ammonium above 10 ppm
Calcium above 10000 ppm as CaCO
Chloride above 12000 ppm
Magnesium above 8000 ppm as CaCO
Sodium above 8000 ppm

3

3

Potassium LR

SILICA

SPECIFICATIONS

Range 0.00 to 2.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.03 mg/L ±3% of reading at 25 °C
Typical EMC ±0.01 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 610 nm
Method Adaptation of the

Heteropoly Blue method. The reaction between silica and reagents causes a blue tint in
the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93705A-0 Molybdate 6 drops
HI 93705B-0 Citric acid 1 packet
HI 93705C-0 Amino acid 1 packet

REAGENT SETS

HI 93705-01 Reagents for 100 tests
HI 93705-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

Method Selection

• Fill the cuvette with 10 mL of unreacted sample (up to the
mark).

• Add 6 drops of HI 93705A-0 Molybdate reagent. Replace the
cap and swirl the solution.

Silica

method using the procedure described in the

section (see page 12).

ASTM Manual of Water and Environmental Technology, D859,

• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for measurement.

• Remove the cuvette and add the content of one packet of
HI 93705C-0 Amino acid reagent and shake until it is
completely dissolved.

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown
prior to the measurement. Alternatively, wait for exactly
3 minutes and press Read. When the timer ends the
meter will perform the reading. The instrument displays
concentration in mg/L of silica (SiO2).

10 mL

• Press s or t to access the second level functions.

• Press the Chem Frm key to convert the result in mg/L of Silicon (Si).

• Wait for 4 minutes, add the content of one packet of HI 93705B-0
Citric acid reagent and shake until it is completely dissolved.

• Wait for 1 minute. This is the blank.

• Place the cuvette into the holder and close the lid.

Silica

112 113

• Press s or t to return to the measurement screen.

INTERFERENCES

Interference may be caused by:
Phosphate above 60 mg/L
Phosphate above 75 mg/L
Sulfide and high concentration of iron
Eliminate color and turbidity interferences by zeroing the meter with the original water sample.

Silica

SILVER

SPECIFICATIONS

Range 0.000 to 1.000 mg/L
Resolution 0.005 mg/L
Accuracy ±0.020 mg/L ±5% of reading at 25 °C
Typical EMC ± 0.001 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 575 nm.
Method Adaptation of the PAN method. The reaction between silver and reagents causes an

orange tint in the sample.

REQUIRED REAGENTS

Code Description Quantity

HI 93737A-0 Buffer Reagent A 1 mL
HI 93737B-0 Buffer Reagent B 1 mL
HI 93737C-0 Indicator Reagent C 2 mL
HI 93737D-0 Fixing Reagent D 2 mL
HI 93703-51 Dispersing Agent 4-6 drops

REAGENT SETS

HI 93737-01 Reagents for 50 tests
HI 93737-03 Reagents for 150 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Fill two graduated beakers with 25 mL of sample.

Silver

method using the procedure described in the

Note: for best results perform your tests between 20-24°C.

Method Selection

section (see page 12).

• Add exactly 1.0 mL of HI 93737B-0 Buffer reagent to the second

beaker (the sample) and swirl gently to mix. Press Timer and the
display will show the countdown prior to adding reagent C or,
alternatively, wait for 2 minutes.

• Then add exactly 1.0 mL of HI 93737C-0 Indicator reagent to

each beaker and swirl. Press Timer or, alternatively, wait for
2 minutes.

• Then, in both cases, add 1.0 mL of HI 93737D-0 Fixing reagent

to each beaker and swirl. Press Timer or, alternatively, wait for
2 minutes.

• Fill one cuvette up to the mark with 10 mL of the blank.

# 1

# 2

# 2# 1

# 2

10 mL

# 1

• Add 1.0 mL of HI 93737A-0 Buffer reagent to one beaker
(the blank) and swirl gently to mix.

Silver

114 115

# 1 # 2

# 1

• Add 3 drops of Dispersing Agent (HI 93703-51), replace the cap
and invert gently to mix for about 10 seconds.

# 1

• Place the cuvette into the holder and close the lid.

Silver

• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for

measurement.

• Fill a second cuvette up to the mark with 10 mL of the reacted sample.

10 mL

# 2

SULFATE

SPECIFICATIONS

Range 0 to 100 mg/L
Resolution 5 mg/L
Accuracy ±5 mg/L ±3% of reading at 25 °C
Light Source Tungsten lamp with narrow band interference filter @ 466 nm
Method Sulfate is precipitated with barium chloride crystals. Light absorbance of the suspension

is measured.

• Add 3 drops of Dispersing Agent (HI 93703-51),
replace the cap and invert gently to mix for about
10 seconds.

• Insert the second cuvette into the instrument.

# 2

• Press Read to start the reading. The instrument displays the results in mg/L of silver.

INTERFERENCES

Interference may be caused by:
Al3+ above 30 mg/L Fe2+ above 1.5 mg/L
Ca2+ above 1000 mg/L as CaCO3Fe3+ above 10 mg/L
Cd2+ above 20 mg/L K+ above 500 mg/L
Cl¯ above 8000 mg/L Mn2+ above 25 mg/L
Co2+ above 1.5 mg/L Mg2+ above 1000 mg/L as CaCO
Cr3+ above 20 mg/L Na+ above 5000 mg/L
Cr6+ above 40 mg/L Ni2+ above 1.5 mg/L
Cu2+ above 15 mg/L Pb2+ above 20 mg/L
F¯ above 20 mg/L Zn2+ above 30 mg/L

3

REQUIRED REAGENTS

Code Description Quantity

HI 93751-0 Indicator reagent 1 packet

REAGENT SETS

HI 93751-01 Reagents for 100 tests
HI 93751-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

Note: for sample preparation follow the COLORED OR TURBID SAMPLES procedure on page 17.

• Select the

• Fill a cuvette with 10 mL of unreacted sample (up to

• 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 ready for

• Remove the cuvette.

Sulfate

method using the procedure described

in the

Method Selection

section (see page 12).

the mark) and replace the cap.

measurement.

10 mL

Silver

116 117

Sulfate

ZINC

• Add the content of one packet of HI 93751-0
Indicator reagent.

• Replace the cap and invert gently to mix
for 1 minute (about 30 inversions).

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 5 minutes and press Read. When the timer ends the meter will perform the reading.

• The instrument displays concentration in mg/L of Sulfate (SO

2

¯).

4

INTERFERENCES

Interferences may be caused by:
Calcium (as CaCO3) above 20000 mg/L

Chloride (as Cl¯) above 40000 mg/L
Magnesium (as MgCO3) above 10000 mg/L
Silica (as SiO2) above 500 mg/L
Color or suspended matter in large amounts will interfere: suspended matter should be removed by previous

filtration.
Organic matter in large amounts may impede the precipitation of barium sulfate.

SPECIFICATIONS

Range 0.00 to 3.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.03 mg/L ±3% of reading at 25 °C
Typical EMC ±0.01 mg/L

Deviation
Light Source Tungsten lamp with narrow band interference filter @ 575 nm
Method Adaptation of the

18

th

edition,

Standard Methods for the Examination of Water and Wastewater,

Zincon method. The reaction between zinc and the reagents causes an

orange to a dark violet tint in the sample.

REQUIRED REAGENT

Code Description Quantity

HI 93731A-0 Zinc Reagent 1 packet
HI 93731B-0 Cyclohexanone 0.5 mL

REAGENT SETS

HI 93731-01 Reagents for 100 tests
HI 93731-03 Reagents for 300 tests

For other accessories see page 124.

MEASUREMENT PROCEDURE

• Select the

• Fill one graduated mixing cylinder up to the 20 mL mark

• Add the content of one packet of HI 93731A-0 Zinc

Zinc

method using the procedure described in

the

Method Selection

section (see page 12).

with the sample.

reagent, close the cylinder and invert several times to mix
until completely dissolved.

20 mL

Sulfate

• Fill one cuvette with 10 mL of the reacted sample up to
the mark.

118 119

10 mL

Zinc

• Place the cap and insert the cuvette into the instrument
and close the lid.

• Press the Zero key. The display will show “-0.0-” when
the meter is zeroed and ready for measurement.

ERRORS AND WARNINGS

The instrument shows clear warning messages when erroneous conditions appear and when measured values are
outside the expected range. These messages are described below.

No Light: The light source is not functioning properly.

• Remove the cuvette and add 0.5 mL of HI 93731B-0
Cyclohexanone to the cuvette.

Note: To prevent any contamination from the polycarbonate
cap, prior to replacing it, close the sample cuvette with
the supplied HDPE plastic stopper.

• Replace the cap and mix the sample for 15 seconds.

• Insert the sample into the instrument.

• Press Timer and the display will show the countdown
prior to the measurement or, alternatively, wait for
3 minutes 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 zinc.

INTERFERENCES

Interference may be caused by:
Aluminum above 6 mg/L
Cadmium above 0.5 mg/L
Copper above 5 mg/L
Iron above 7 mg/L
Manganese above 5 mg/L
Nickel above 5 mg/L

Zinc

120 121

Light Leak: There is an excess amount of ambient light reaching the
detector.

Inverted cuvettes: The sample and the zero cuvettes are inverted.

Battery Low: The battery capacity is lower than 10%.

Light Low: The instrument cannot adjust the light level. Please check

that the sample does not contain any debris.

Light High: There is too much light to perform a measurement. Please
check the preparation of the zero cuvette.

DATA MANAGEMENT

STANDARD METHODS

The analyzed data can be managed using Hanna’s product HI92000, Windows® Compatible Software.

Windows® is registered Trademark of "Microsoft Co."

Description Range Method

Aluminum 0.00 to 1.00 mg/L Aluminon
Alkalinity 0 to 500 mg/L Colorimetric
Ammonia MR 0.00 to 10.00 mg/L Nessler
Ammonia LR 0.00 to 3.00 mg/L Nessler
Bromine 0.00 to 8.00 mg/L DPD
Calcium 0 to 400 mg/L Oxalate
Chlorine, Free 0.00 to 2.50 mg/L DPD
Chlorine, Total 0.00 to 3.50 mg/L DPD
Chlorine Dioxide 0.00 to 2.00 mg/L Chlorophenol Red

Chromium VI HR 0 to 1000 µg/L Diphenylcarbohydrazide
Chromium VI LR 0 to 300 µg/L Diphenylcarbohydrazide

Color of Water 0 to 500 PCU Colorimetric Platinum Cobalt
Copper HR 0.00 to 5.00 mg/L Bicinchoninate

Copper LR 0 to 1000 µg/L Bicinchoninate

Cyanuric Acid 0 to 80 mg/L Turbidimetric
Fluoride 0.00 to 2.00 mg/L SPADNS
Calcium Hardness 0.00 to 2.70 mg/L Colorimetric
Magnesium Hardness 0.00 to 2.00 mg/L Colorimetric

Hydrazine 0 to 400 µg/L p-Dimethylaminobenzaldehyde

Iodine 0.0 to 12.5 mg/L DPD
Iron HR 0.00 to 5.00 mg/L Phenantroline

Iron LR 0 to 400 µg/L TPTZ

Magnesium 0 to 150 mg/L Calmagite
Manganese HR 0.0 to 20.0 mg/L Periodate Oxidation

Manganese LR 0 to 300 µg/L PAN

Molybdenum 0.0 to 40.0 mg/L Mercaptoacetic Acid
Nickel HR 0.00 to 7.00 g/L Photometric
Nickel LR 0.000 to 1.000 mg/L PAN
Nitrate 0.0 to 30.0 mg/L Cadmium Reduction
Nitrite HR 0 to 150 mg/L Ferrous Sulfate
Nitrite LR 0.00 to 0.35 mg/L Diazotization
Oxygen, Dissolved 0.0 to 10.0 mg/L Winkler
Ozone 0.00 to 2.00 mg/L DPD
pH 6.5 to 8.5 pH Phenol Red
Phosphate HR 0.0 to 30.0 mg/L Amino Acid
Phosphate LR 0.00 to 2.50 mg/L Ascorbic Acid
Phosphorus 0.0 to 15.0 mg/L Amino Acid
Potassium HR 20 to 200 mg/L Turbidimetric
Potassium MR 10 to 100 mg/L Turbidimetric
Potassium LR 0.0 to 20.0 mg/L Turbidimetric
Silica 0.00 to 2.00 mg/L Heteropoly Blue
Silver 0.000 to 1.000 mg/L PAN
Sulfate 0 to 100 mg/L Turbidimetric
Zinc 0.00 to 3.00 mg/L Zincon

122 123

ACCESSORIES

REAGENT SETS
HI 93700-01 100 ammonia LR tests
HI 93700-03 300 ammonia LR tests
HI 93701-01 100 free chlorine tests (powder)
HI 93701-03 300 free chlorine tests (powder)
HI 93701-F 300 free chlorine tests (liquid)
HI 93701-T 300 total chlorine tests (liquid)
HI 93702-01 100 copper HR tests
HI 93702-03 300 copper HR tests
HI 93704-01 100 hydrazine tests
HI 93704-03 300 hydrazine tests
HI 93705-01 100 silica tests
HI 93705-03 300 silica tests
HI 93706-01 100 phosphorus tests
HI 93706-03 300 phosphorus tests
HI 93707-01 100 nitrite LR tests
HI 93707-03 300 nitrite LR tests
HI 93708-01 100 nitrite HR tests
HI 93708-03 300 nitrite HR tests
HI 93709-01 100 manganese HR tests
HI 93709-03 300 manganese HR tests
HI 93710-01 100 pH tests
HI 93710-03 300 pH tests
HI 93711-01 100 total chlorine tests (powder)
HI 93711-03 300 total chlorine tests (powder)
HI 93712-01 100 aluminum tests
HI 93712-03 300 aluminum tests
HI 93713-01 100 phosphate LR tests
HI 93713-03 300 phosphate LR tests
HI 93715-01 100 ammonia MR tests
HI 93715-03 300 ammonia MR tests
HI 93716-01 100 bromine tests
HI 93716-03 300 bromine tests
HI 93717-01 100 phosphate HR tests
HI 93717-03 300 phosphate HR tests
HI 93718-01 100 iodine tests
HI 93718-03 300 iodine tests
HI 93719-01 100 Mg hardness tests
HI 93719-03 300 Mg hardness tests
HI 93720-01 100 Ca hardness tests
HI 93720-03 300 Ca hardness tests
HI 93721-01 100 iron HR tests
HI 93721-03 300 iron HR tests

HI 93722-01 100 cyanuric acid tests
HI 93722-03 300 cyanuric acid tests
HI 93723-01 100 chromium VI HR tests
HI 93723-03 300 chromium VI HR tests
HI 93726-01 100 nickel HR tests
HI 93726-03 300 nickel HR tests
HI 93728-01 100 nitrate tests
HI 93728-03 300 nitrate tests
HI 93729-01 100 fluoride tests
HI 93729-03 300 fluoride tests
HI 93730-01 100 molybdenum tests
HI 93730-03 300 molybdenum tests
HI 93731-01 100 zinc tests
HI 93731-03 300 zinc tests
HI 93732-01 100 dissolved oxygen tests
HI 93732-03 300 dissolved oxygen tests
HI 93737-01 50 silver tests
HI 93737-03 150 silver tests
HI 93738-01 100 chlorine dioxide tests
HI 93738-03 300 chlorine dioxide tests
HI 93740-01 50 nickel LR tests
HI 93740-03 150 nickel LR tests
HI 93746-01 50 iron LR tests
HI 93746-03 150 iron LR tests
HI 93748-01 50 manganese LR tests
HI 93748-03 150 manganese LR tests
HI 93749-01 100 chromium VI LR tests
HI 93749-03 300 chromium VI LR tests
HI 93755-01 100 alkalinity tests
HI 93755-03 300 alkalinity tests
HI 93755-53 Chlorine Remover
HI 937521-01 50 calcium tests
HI 937521-03 150 calcium tests
HI 937520-01 50 magnesium tests
HI 937520-03 150 magnesium tests
HI 93757-01 100 ozone tests
HI 93757-03 300 ozone tests
HI 93703-52-2 Glycine Powder, Optional Reagent for 100 tests
HI 93750-01 100 potassium HR tests
HI 93750-03 300 potassium HR tests
HI 93751-01 100 sulfate tests
HI 93751-03 300 sulfate tests
HI 95747-01 100 copper LR tests
HI 95747-03 300 copper LR tests

124 125

OTHER ACCESSORIES

HI 731318 cloth for wiping cuvettes (4 pcs)
HI 731321 glass cuvettes (4 pcs)
HI 731325W new cap for cuvette (4 pcs)
HI 740034 cap for 100 mL beaker (6 pcs)
HI 740036 100 mL plastic beaker (6 pcs)
HI 740038 60 mL glass bottle and stopper
HI 740142 1 mL graduated syringe
HI 740143 1 mL graduated syringe (6 pcs)
HI 740144 pipette tip (6 pcs)
HI 740157 plastic refilling pipette (20 pcs)
HI 740220 25 mL glass cylinders with caps (2 pcs)
HI 740223 170 mL plastic beaker
HI 740224 170 mL plastic beaker (12 pcs)
HI 740225 60 mL graduated syringe
HI 740226 5 mL graduated syringe
HI 740227 filter assembly
HI 740228 filter discs (25 pcs)
HI 740229 100 mL graduated cylinder
HI 740230 230 mL demineralized water
HI 92000 Windows compatible software
HI 920013 PC connection cable
HI 93703-50 cuvette cleaning solution (230 mL)
HI 93703-54 dried resin (100 g)
HI 93703-55 activated carbon (50 pcs)

WARRANTY

All Hanna Instruments meters are warranted for two years against defects in workmanship and materials
when used for its intended purpose and maintained according to the instructions.

This warranty is limited to repair or replacement free of charge.
Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered.
If service is required, contact your dealer. If under warranty, report the model number, date of purchase,

serial number and the nature of the failure. If the repair is not covered by the warranty, you will be notified
of the charges incurred.

If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization Number
from the Customer Service Department and then send it with shipment costs prepaid. When shipping any
instrument, make sure it is properly packaged for complete protection.

To validate your warranty, fill out and return the enclosed warranty card within 14 days from the date of
purchase.

Recommendations for Users

Before using these products, make sure that they are entirely suitable for your specific application and for the environment in which they are used.
Operation of these instruments may cause unacceptable interferences to other electronic equipments, this requiring the operator to take all necessary steps to

correct interferences.
Any variation introduced by the user to the supplied equipment may degrade the instruments' EMC performance.
To avoid damages or burns, do not put the instrument in microwave ovens. For yours and the instrument safety do not use or store the instrument in hazardous

environments.

Hanna Instruments reserves the right to modify the design, construction and appearance of its products
without advance notice.

HANNA LITERATURE

Hanna publishes a wide range of catalogs and handbooks for an equally wide range of applications. The
reference literature currently covers areas such as:

• Water Treatment

• Process

• Swimming Pools

• Agriculture

• Food

• Laboratory

and many others. New reference material is constantly being added to the library.
For these and other catalogs, handbooks and leaflets contact your dealer or the Hanna Customer Service
Center nearest to you. To find the Hanna Office in your vicinity, check our home page at www.hannainst.com.

126 127

Hanna Instruments Inc.

Highland Industrial Park
584 Park East Drive
Woonsocket, RI 02895 USA

Technical Support for Customers

Tel. [phone]
Fax [phone]
E-mail [e-mail]
www.hannainst.com

Local Sales and Customer Service Office

Printed in EUROPE

(ROMANIA)

MAN83200 04/12

128