Hanna Instruments HI 83200-01 User Manual

Instruction Manual

HI 83200

Multiparameter Bench

Photometer

for Laboratories

www.hannainst.com

This Instrument is in

Compliance with the CE Directives

1

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].
This instrument is in compliance with

directives.

TABLE OF CONTENTS

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

ABBREVIATIONS ............................................................... 3

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

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

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

PRINCIPLE OF OPERATION ................................................ 4

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

NEED TO KNOW ............................................................... 7

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

CYANIDE ........................................................................52

CYANURIC ACID .............................................................. 55

FLUORIDE ...................................................................... 57

CALCIUM 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.

MAGNESIUM HARDNESS ................................................. 62

HYDRAZINE .................................................................... 65

IODINE .......................................................................... 67

IRON HR ........................................................................69

IRON LR ......................................................................... 71

MAGNESIUM .................................................................. 74

MANGANESE HR ............................................................. 76

MANGANESE LR ............................................................. 78

MOLYBDENUM ............................................................... 81

NICKEL HR ..................................................................... 84

NICKEL LR ...................................................................... 86

NITRATE ......................................................................... 89

NITRITE HR .................................................................... 91

NITRITE LR ..................................................................... 93

DISSOLVED OXYGEN ........................................................ 95

OZONE .......................................................................... 97

pH .............................................................................. 100

PHOSPHATE HR ............................................................ 102

PHOSPHATE LR ............................................................. 104

PHOSPHORUS ............................................................. 106

POTASSIUM HR ............................................................ 108

POTASSIUM MR ............................................................ 111

POTASSIUM LR ............................................................. 113

SILICA ......................................................................... 115

SILVER ........................................................................ 118

SULFATE ...................................................................... 121

ZINC............................................................................ 123

ERRORS AND WARNINGS ............................................... 125

DATA MANAGEMENT ...................................................... 126

STANDARD METHODS .................................................... 127

ACCESSORIES .............................................................. 128

WARRANTY .................................................................. 131

HANNA LITERATURE ...................................................... 131

PRELIMINARY EXAMINATION

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

Each Meter is supplied complete with:

• Four Sample Cuvettes and Caps

• Sample Preparation Kit (see page 17)

• Cloth for wiping cuvettes (4 pcs)

• Scissors

• AC/DC Power Adapter

• Instruction Manual

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.

ABBREVIATIONS

°C: degree Celsius
EPA: US Environmental Protection Agency
°F: degree Fahrenheit
g/L: grams per liter (ppt)
HR: high range
LR: low range
mg/L: milligrams per liter (ppm)
mL: milliliter
MR: medium range
μg/L: micrograms per liter (ppb)
PAN: 1-(2-pyridylazo)-2-naphtol
TPTZ: 2,4,6-tri-(2-pyridyl)-1,3,5-triazine

GENERAL DESCRIPTION

HI 83200 is a multiparameter bench photometer dedicated for Laboratory analysis. It can measure 45
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.

2 3

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, precision, etc.) refer to the related measurement
section.

PRECISION AND ACCURACY

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 precision is expressed in the
related measurement section as standard deviation
at a specific concentration value of the analite. The
standard deviation is obtained with a single instrument

using a representative lot of reagents.

PRINCIPLE OF OPERATION

Absorption of Light is a typical phenomenon of interaction between electromagnetic radiation and matter.
When a light beam crosses a substance, some of the radiation may be absorbed 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/I
A = ε

= ε

o

or

λ

c d

c d

λ

Where:

-log I/I

=Absorbance (A)

o

I

=intensity of incident light beam

o

I =intensity of light beam after absorption

ε

=molar extinction coefficient at wavelength λ

λ

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

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

Photometric chemical analysis is based on the possibility to develop an absorbing compound from a 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.

Instrument block diagram (optical layout)

A microprocessor controlled special tungsten lamp emits radiation which is first optically conditioned and beamed
to 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 -I

or -I-.

o-

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.

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 of 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 close the cuvette to prevent any contamination.

4 5

FUNCTIONAL DESCRIPTION

KEYPAD DESCRIPTION

INSTRUMENT DESCRIPTION

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

Press to perform the function displayed above it. The functions are screen related.

ESC

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.

RCL

Press to recall the log.

HELP

Press to display the help screen.

SETUP

Press to access the setup screen.

NEED TO KNOW

1) Cuvette Lid

2) Liquid Crystal Display (LCD).

3) Splash proof keypad.

4) ON/OFF power switch

5) Power input connector

6) USB connector

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.

6 7

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, they should be removed by
treatment with active carbon and filtration.

• 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 of 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.

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)

• 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.

(c)(a) (b)

USING CUVETTES

• Proper mixing of the cuvette is done by shaking the cuvette, moving the cuvette up and down. The

(c)(a) (b)

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

8 9

Pay attention to push the cuvette completely down in the holder.

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.

METHOD REFERENCE TABLE

• 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, or
accuracy will be lost.

• 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 20°C (68°F). As a general rule of thumb, they
should be doubled at 10°C (50°F) and halved at 30°C (86°F).

REAGENT BLANK CORRECTION

• Some methods require a “reagent blank correction”. The blank and the sample are prepared exactly
in the same way, only the blank is deionized water instead of sample.
A blank cuvette may be used more than once: stability and storing conditions are described for each
method in the related chapter.

INTERFERENCES

• In the method measurement section the most common interferences that may be present in an average
wastewater matrix have been reported. It may be that for a particular treatment process other
compounds do interfere with the method of analysis.

HI83200 - LABORATORIES

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 Cyanide 52
16 Cyanuric Acid 55
17 Fluoride 57
18 Calcium Hardness 59
19 Magnesium Hardness 62
20 Hydrazine 65
21 Iodine 67
22 Iron HR 69
23 Iron LR 71

Method Method Page

description

24 Magnesium 74
25 Manganese HR 76
26 Manganese LR 78
27 Molybdenum 81
28 Nickel HR 84
29 Nickel LR 86
30 Nitrate 89
31 Nitrite HR 91
32 Nitrite LR 93
33 Dissolved Oxygen 95
34 Ozone 97
35 p H 100
36 Phosphate HR 102
37 Phosphate LR 104
38 Phosphorus 106
39 Potassium HR 108
40 Potassium MR 111
41 Potassium LR 113
42 Silica 115
43 Silver 118
44 Sulfate 121
45 Zinc 123

10 11

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 was 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 LOG and

..

RCL keys

.

..

Storing data

stored in a stack as a record 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 ON the instrument 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 selected method will appear on the display.

• In order to select the desired method press METHOD and a screen with the available methods will appear.

• Press   keys to highlight the desired method. Press Select.

Viewing and deleting

on the LIFO (last in, first out) scheme. Additionally, you can delete the data records all at once.

: You can view and delete the data log by pressing the RCL key. Deleting is based

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 the  or  to access to the second level
of functions and then press the Chem Frm functional key to toggle between the existing 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 the  or  to access the second level of functions and then press the Unit
functional key to toggle between °f, °dH, °E and mg/L.

12 13

SETUPSETUP

SETUP

SETUPSETUP

In the Setup mode the instrument’s par amete rs can be changed. Some param eters 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  
new value as follows:

keys to select the parameter and select a

Backlight

Values: 0 to 8.

Press Modify functional key to access the backlight value.
Use the WX functional keys or the   keys to increase/
decrease the value.
Press Accept functional 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 Modify functional key to change the display’s contrast.
Use the WX functional keys or the   keys to increase/
decrease the value.
Press Accept functional 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 Modify functional key to change the date/time.
Press the WX functional keys to highlight the value to be modified
(year, month, day, hour, minute or second). Use the  keys to
change the value.
Press Accept functional 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 Modify functional key to change the Date Format.
Use the   keys to select the desired format.
Press Accept functional key to confirm or ESC to return to the setup

menu without saving the new format.

Language

Press the corresponding functional key to change the option.
If the new selected 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 guides, 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.

14 15

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 Modify functional key to access the instrument ID screen. Press the
  keys in order to set the desired value.
Press Accept functional key to confirm the value or ESC to return to the
setup menu without saving the new value.

Meter information

Press “Select” functional 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

SAMPLE PREPARATION

LIST OF MATERIAL

HI 83200 is supplied with the following accessories for sample preparation:

• 4 cuvettes (10 mL)

• 2 plastic beakers (100 and 170 mL)

• 1 graduated cylinder (100 mL)

• 1 syringe with screw rim (60 mL)

• 1 syringe (5 mL)

• 1 filter assembly

• 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)

SAMPLE PREPARATION PROCEDURE

Note: If the water sample to be analyzed is very turbid, let it stand in a beaker for a while until most

of the solid particles have settled. Then, use the pipette to transfer the supernatant solution to the
other beaker and prepare the samples as described below. To prevent the displacement of the settled
solids at the bottom of the beaker, do not induce air bubbles into the solution.

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

To access help screens press HELP.
The instrument will display additional information related to the
current screen. To read all available data, scroll the text using the
  keys.
Press Support functional key to access a screen with Hanna service
centers and their contact details.
Press Accessories functional key to access a page with instru-
ment accessories.
To exit support or accessories screens press ESC and the instrument will
return to the previous help screen.
To exit help mode just press HELP or ESC key again and the
meter will display the last screen the user was in before entering
help mode.

16 17

IRRIGATION WATER (LR):

• Measure 100 mL of sample with the graduated cylinder.

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

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

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

• Unscrew the filter assembly, put a filter disc inside and close
it.

• Connect the filter assembly to the 60 mL syringe by the
screw rim.

• Remove the syringe plunger and fill the syringe with the
sample to be filtered. Pour the sample gently, trying to
avoid transferring of the actived carbon to the syringe.

• Reinsert the plunger and filter the solution into the 100mL
beaker by pushing gently the syringe plunger.
The sample is now ready.

Note: Filter at least 40 mL of solution if all the four methods
will be tested. 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.

filter

disc

• Replace the cap and shake gently for

at least 2 minutes.

• Open the upper part of the Demineralizer Bottle cap and gently squirt
the demineralized water into 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 large 170mL beaker, replace the cap and
invert several times to mix.

• If the solution contains some turbidity or color, add a powder packet of active
carbon and follow the procedure described for Irrigation Water (LR).

NUTRIENTS SOLUTION (HR):

• Add 10 mL of sample to the graduated cylinder using the 5 mL syringe
(twice).

NUTRIENTS SOLUTION (MR):

• Use the graduated cylinder to measure exactly 20 mL of
sample.

18 19

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.

probable level of liquid

taken up by syringe

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

• Replace the cap and shake gently for

at least 2 minutes.

ALUMINUM

SPECIFICATIONS

Range 0.00 to 1.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.02 mg/L ±4% of reading
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 128.

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

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

• If the solution contains some turbidity or color, add a powder packet of active carbon and follow the
procedure described for Irrigation Water (LR).

20 21

MEASUREMENT PROCEDURE

• Select the

Method Selection

• 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).

Aluminum

method using the procedure described in the

section (see page 12).

# 1

10 mL10 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.

• Place the 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 15 minutes and then press
ZERO. The display will show "-0.0-" when the meter is zeroed and
ready for measurement.

• 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.

# 1

# 2

# 1

ALKALINITY

SPECIFICATIONS

Range 0 to 500 mg/L (as CaCO3)
Resolution 5 mg/L
Precision ±10 @ 100 mg/L
Typical EMC ±5 mg/L

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

REQUIRED REAGENTS

Code Description Quantity/test

HI 93755-0 Alkalinity Indicator Reagent 1 packet

REAGENT SETS

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

For other accessories see page 128.

MEASUREMENT PROCEDURE

• Select the

Method Selection

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

Colorimetric Method. At different alkalinity levels a distinctive range of colors from yellow

to green and greenish blue will develop.

Alkalinity

method using the procedure described in the

section (see page 12).

10 mL

• Press the  or  to access the second level of functions.

• Press the Chem Frm functional key to convert the result in mg/L of Al

• Press the  or  to go back 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

2O3

• Place the cuvette into the holder and close the lid

.

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

Alkalinity

• Remove the cuvette.

• Add carefully the content of one packet of HI 93755-0 Alkalinity
Indicator Reagent. Replace the cap and shake vigorously for 30
seconds.
Note: Pay attention not to spill reagent otherwise full color
development may be inhibited.

• 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 the results in mg/L of alkalinity (CaCO

).

3

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
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 128.

MEASUREMENT PROCEDURE

• Select the

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

Ammonia MR

Method Selection

the

and replace the cap.

section (see page 12).

ASTM Manual of Water and Environmental Technology, D1426-92

method using the procedure described in

,

Alkalinity

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

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

24 25

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 (NH

-N).

3

x 4

x 4

SPECIFICATIONS

Range 0.00 to 3.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.04 mg/L ±4% of reading
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 128.

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

,

• Press the  or  to access the second level of functions.

• Press the Chem Frm functional key to convert the result in mg/L of ammonia (NH

) and ammonium (NH

3

+

4

• Press the  or  to go back 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 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
(NH

-N).

3

x 4

x 4

BROMINE

SPECIFICATIONS

Range 0.00 to 8.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.08 mg/L ±3% of reading
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 128.

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 the  or  to access the second level of functions.

• Press the Chem Frm functional key to convert the result in mg/L of ammonia (NH

) and ammonium (NH

3

+

4

• Press the  or  to go back 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 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.

• The instrument displays the results in mg/L of bromine.

CALCIUM

SPECIFICATIONS

Range 0 to 400 mg/L
Resolution 10 mg/L
Accuracy ±10 mg/L ±5% of reading
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

BB

HI 93752

B-0 Ca Calcium Oxalate Reagent 1 mL

BB

REAGENT SETS

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

For other accessories see page 128.

MEASUREMENT PROCEDURE

Note: for sample preparation follow the IRRIGATION WATER (LR) procedure at page 17.

Calcium

• Select the

method using the procedure described in the

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

Method Selection

section (see page 12).

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 CaCO
minutes after adding the reagent.
In case of water with alkalinity greater than 250 mg/L CaCO

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

, shake the sample for approximately 2

3

or acidity greater than 150 mg/L CaCO3,

3

3 mL of sample

• Add 4 drops of Buffer Reagent.

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

Calcium

• Replace the cap and invert several times to mix.

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

FREE CHLORINE

FREE CHLORINEFREE CHLORINE

FREE CHLORINE

FREE CHLORINEFREE CHLORINE

• Press 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.

• Press TIMER or wait for 5 minutes, then invert
again the cuvette 10 times. Reinsert the cuvette
into the instrument.

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

Note: To ensure accurate results, perform the tests at room temperature, between 18°C and 28°C (65°F

to 83°F).

INTERFERENCES:

Interferences may be caused by:
Acidity (as CaCO
Alkalinity (as CaCO
Magnesium (Mg

) above 1000 mg/L

3

) above 1000 mg/L

3

2+

) above 400 mg/L

SPECIFICATIONS

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

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

EPA DPD method 330.5.

The reaction between free chlorine and the

DPD reagent causes a pink tint in the sample.

REQUIRED 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 128.

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.

in the

Method Selection

Free Chlorine

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

mark) and replace the cap.

10 mL

Calcium

32 33

Free Chlorine

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

• Reinsert the cuvette into the instrument.

• 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).

• Wait for a minute to allow the undissolved reagent to precipitate
and 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.

• 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 CaCO

minutes after adding the powder reagent.
In case of water with alkalinity greater than 250 mg/L CaCO

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

, shake the sample for approximately 2

3

or acidity greater than 150 mg/L CaCO3,

3

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

x 3x 3

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
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 128.

EPA DPD method 330.5.

The reaction between the chlorine and the

• Press 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
scribed 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 de-

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.

x 3

x 3

x 1

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 CaCO

minutes after adding the powder reagent.
In case of water with alkalinity greater than 250 mg/L CaCO

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

, shake the sample for approximately 2

3

or acidity greater than 150 mg/L CaCO3,

3

CHLORINE DIOXIDE

SPECIFICATIONS

Range 0.00 to 2.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.10 mg/L ±5% of reading
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

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 128.

MEASUREMENT PROCEDURE

• Select the
described in the

reagents causes a colorless to purple tint in the sample.

Chlorine Dioxide

Method Selection

method using the procedure

section (see page 12).

Total Chlorine

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

• 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

25 ml

#1 & #2

#2

25 ml

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

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

• 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.

#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

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

#2

#1

the cap.

10 mL

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

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

#2

#2

10 mL

• 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

#1

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
Typical EMC ±1 µg/L
Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the

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 128.

MEASUREMENT PROCEDURE

• Select the

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

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

• Press ZERO key. The meter will show “-0.0-” when the meter is

Chromium VI HR

the

Method Selection

section (see page 12).

replace the cap.

zeroed and ready for measurement.

ASTM Manual of Water and Environmental Technology, D1687-92

method using the procedure described in

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
µg/L of chromium VI.

,

• Press the  or  to access the second level of functions.

2-

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

2-

(Cr

).

2O7

) and Dichromate

4

• Press the  or  to go back 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 93723-0 reagent. Replace the cap and shake vigorously
for about 10 seconds.

Chromium VI HR

42 43

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
Typical EMC ±1 µg/L
Deviation
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the

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 128.

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 ZERO key. The meter will show “-0.0-” when the meter is

Chromium VI LR

the

Method Selection

section (see page 12).

and replace the cap.

zeroed and ready for measurement.

ASTM Manual of Water and Environmental Technology, D1687-92

method using the procedure described in

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 µg/L of chromium VI.

,

• Press the  or  to access the second level of functions.

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

2-

(Cr

).

2O7

2-

) and Dichromate

4

• Press the  or  to go back 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
Typical EMC ± 1 PCU

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

18

th

edition

REQUIRED ACCESSORIES

0.45 µm membrane for true color measurement.

For other accessories see page 128.

MEASUREMENT PROCEDURE

• Select the

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

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

Color of Water

Method Selection

the

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

# 1

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

# 2

close the lid.

• Press READ to start the reading.

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

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

10 mL

# 2

# 3

# 3

• Press 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

• 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
Typical EMC ±0.01 mg/L

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

EPA method.

The reaction between copper and the bicinchoninate

reagent causes a purple tint in the sample.

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 128.

MEASUREMENT PROCEDURE

• Select the

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

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

• Press ZERO key. The meter will show “-0.0-” when the meter is

Copper HR

method using the procedure described in the

Method Selection

section (see page 12).

and replace the cap.

zeroed and ready for measurement.

• 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

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

48 49

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
Typical EMC ±1 μg/L

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

EPA method.

The reaction between copper and the bicinchoninate

reagent causes a purple tint in the sample.

REQUIRED REAGENTS

Code Description Quantity
HI 93747-0 Bicinchoninate 1 packet

REAGENT SETS

HI 93747-01 Reagents for 100 tests
HI 93747-03 Reagents for 300 tests

For other accessories see page 128.

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.

• Press ZERO key. The meter will show “-0.0-” when the meter is

Copper LR

method using the procedure described in

Method Selection

the

section (see page 12).

mark) and replace the cap.

zeroed and ready for measurement.

• Add the content of one packet of HI 93747-0 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

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

50 51

Copper LR

CYANIDE

SPECIFICATIONS

Range 0.000 to 0.200 mg/L
Resolution 0.001 mg/L
Accuracy ±0.005 mg/L ±3% of reading
Typical EMC Dev. ±0.001 mg/L
Light Source Tungsten lamp with narrow band interference filter @ 610 nm
Method Adaptation of the

18

th

edition

causes a blue tint in the sample.

REQUIRED REAGENTS

Code Description Quantity
HI 93714A-0 Reagent A 1 spoon
HI 93714B-0 Reagent B 1 packet
HI 93714C-0 Reagent C 1 packet

REAGENT SETS

HI 93714-01 Reagents for 100 tests
HI 93714-03 Reagents for 300 tests

For other accessories see page 128.

Standard Methods for the Examination of Water and Wastewater,

, Pyridine-Pyrazolone method. The reaction between cyanide and reagents

Note: Pay attention to the way the spoon is filled:

- do not press the powder;

- do not overfill it.

• Place the HDPE plastic stopper and cap

immediately, to prevent the
escape of chlorine gas which is developed during the reaction, and
shake gently for 30 seconds.

• Wait for 30 seconds leaving the cuvette tightly capped and undis­turbed, then add the content of one packet of HI 93714B-0 reagent
and shake gently for 10 seconds.

• Immediately add the content of one packet of HI 93714C-0 reagent,
replace the cap and shake vigorously for 20 seconds.

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.

• Press ZERO key. The meter will show “-0.0-” when the meter is

• Remove the cuvette and add 1 level spoon of HI 93714A-0 Cyanide

Cyanide

Cyanide

method using the procedure described in the

Method Selection

section (see page 12).

mark) and replace the cap.

zeroed and ready for measurement.

Reagent. Remember to close the reagent bottle immediately after
use.

52 53

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 25 minutes and press
READ. When the timer ends the meter will perform the reading.

Note: Gently shake the cuvette 4 or 5 times during the first 20 minutes of the countdown prior to the
measurement. Accuracy is not affected by undissolved reagent powder.

• The instrument displays the results in mg/L of cyanide.

Cyanide

• Press the  or  to access the second level of functions.

• Press the Chem Frm functional key to convert the result in mg/L of Potassium Cyanide (KCN).

• Press the  or  to go back to the measurement screen.
Note: for most accurate results perform the test at 20-25 °C.

INTERFERENCES

Interference may be caused by large amounts of turbidity that will cause high readings.
Oxidizing (such as chlorine) or reducing agents (such as sulfide or sulfur dioxide) are known to interfere with

the measurement. Distillation will remove these.
Samples with high pH values should be adjusted to approximately pH 7 before testing.

CAUTION: cyanides, their solutions, and hydrogen cyanide liberated by acids, are very poisonous.

CYANURIC ACID

SPECIFICATIONS

Range 0 to 80 mg/L
Resolution 1 mg/L
Accuracy ±1 mg/L ±15% of reading
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

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 128.

MEASUREMENT PROCEDURE

• Select the
scribed in the

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

reagent causes a white suspension in the sample.

Cyanuric Acid

method using the procedure de-

Method Selection

section (see page 12).

10 mL

Cyanide

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

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

• Fill a graduated beaker up to the 25 mL mark with the
sample, add the content of one packet of HI 93722-0 reagent
and swirl gently to mix.

54 55

Cyanuric Acid

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

10 mL

mark. Replace the cap.

• 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.

FLUORIDE

SPECIFICATIONS

Range 0.00 to 2.00 mg/L
Resolution 0.01 mg/L
Accuracy ±5% of reading
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

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 128.

MEASUREMENT PROCEDURE

• Select the

Fluoride

Method Selection

method using the procedure described in the

section (see page 12).

Standard Methods for the Examination of Water and Wastewater,

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

Cyanuric Acid

• 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.

56 57

10 ml

# 1

2 ml

10 ml

# 2

# 1

Fluoride

• 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.

CALCIUM HARDNESS

SPECIFICATIONS

Range 0.00 to 2.70 mg/L
Resolution 0.01 mg/L
Accuracy ±0.11 mg/L ±5% of reading
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,

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 128.

MEASUREMENT PROCEDURE

• Select the
dure described in the
page 12).

Calcium Hardness

Standard Methods for the Examination of Water and Wastewater,

Calmagite method. The reaction between calcium and reagents causes a

method using the proce-

Method Selection

section (see

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.

INTERFERENCES

Interferences may be caused by:
Alkalinity (as CaCO
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

) above 5000 mg/L

3

58 59

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

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

# 1 # 2

• 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

• 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.

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

• Press 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)
into the instrument.

• Press READ to start the reading. The instrument dis­plays concentration in mg/L of calcium hardness, as
CaCO

.

3

# 1

# 1

# 2

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

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

• Press the  or  to go back 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.

• Press the  or  to access the second level of functions.

• Press the Chem Frm functional key to convert the result in mg/L of Calcium (Ca).

Hardness Ca

60 61

Hardness Ca

MAGNESIUM HARDNESS

SPECIFICATIONS

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

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

18

th

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 128.

MEASUREMENT PROCEDURE

• Select the
scribed 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 de-

section (see page 12).

10 mL 10 mL

• Fill both cuvettes up to the 10 mL mark.

# 1

# 2

• 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

# 2

# 1

mix. This is the sample.

# 1

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

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

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

# 2

• 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.

Hardness Mg

62 63

• Press READ to start the reading. The instrument displays concentration
in mg/L of magnesium hardness, as CaCO

.

3

Hardness Mg

• Press the  or  to access the second level of functions.

• Press the Chem Frm functional key to convert the result in mg/L of Magnesium (Mg).

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

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

• Press the  or  to go back 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 61 (Ca Hardness).

INTERFERENCES

Interference may be caused by excessive amounts of heavy metals.

HYDRAZINE

SPECIFICATIONS

Range 0 to 400 µg/L
Resolution 1 µg/L
Accuracy ±4% of full scale
Typical EMC ±2 µg/L

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

D1385-88,

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 128.

MEASUREMENT PROCEDURE

• Select the

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

in the

Method Selection

Hydrazine

method using the procedure described

section (see page 12).

ASTM Manual of Water and Environmental Technology, method

p-Dimethylaminobenzaldehyde method. The reaction between hydrazine

10 mL

# 1

Hardness Mg

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

• Press the Blank function 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.

64 65

# 1

10 mL

# 2

Hydrazine

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

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

• Press TIMER and the display will show the countdown
prior to zeroing the blank. The display will show “-0.0-”
when the meter is zeroed and ready for measurement.

• Remove the blank.

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

• Press READ to start the reading. The instrument displays
concentration in µg/L of hydrazine.

# 1

x 12

# 2

x 12

# 1

# 2

IODINE

SPECIFICATIONS

Range 0.0 to 12.5 mg/L
Resolution 0.1 mg/L
Accuracy ±0.1 mg/L ±5% of reading
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

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 128.

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 ZERO key. The display will show “-0.0-” when the

Iodine

method using the procedure described in

the

Method Selection

section (see page 12).

the mark) and replace the cap.

meter is zeroed and ready for measurement.

Standard Methods for the Examination of Water and Wastewater,

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

10 mL

INTERFERENCES

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

Hydrazine

• 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.

66 67

Iodine

• 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 CaCO

minutes after adding the reagent.
In case of water with alkalinity greater than 250 mg/L CaCO

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

, shake the sample for approximately 2

3

or acidity greater than 150 mg/L CaCO3,

3

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
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.

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 128.

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

Method Selection

in the

section (see page 12).

the mark) and replace the cap.

EPA Phenantroline method 315B,

for natural and treated waters.

10 mL

Iodine

• Press 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.

68 69

Iron HR

• 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 CaCO
Magnesium above 100000 ppm (as CaCO
Chloride above 185000 ppm.

)

3

)

3

IRON LOW RANGE

SPECIFICATIONS

Range 0 to 400 µg/L
Resolution 1 µg/L
Accuracy ±10 µg/L ±8% of reading
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

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 128.

MEASUREMENT PROCEDURE

• Select the
the

Method Selection

• 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
seconds. This is the blank.

violet tint in the sample.

Iron LR

method using the procedure described in

section (see page 12).

vigorously for 30

25 ml

9

30"

12

3

6

Iron HR

• 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.

70 71

10 mL

Iron LR

• Press 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 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

25 ml

9

30"

12

3

6

reacted sample.

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

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

• 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 µg/L of iron.

Iron LR

72 73

10 mL

Iron LR

MAGNESIUM

SPECIFICATIONS

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

.

• Remove the cuvette.

• 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.

0.5 mL

of sample

REQUIRED REAGENTS

Code Description Quantity

AA

HI 93752

A-0 Mg Magnesium Buffer Reagent 1 mL

AA
BB

HI 93752

B-0 Mg Magnesium Indicator Reagent 9 mL

BB

REAGENT SETS

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

For other accessories see page 128.

MEASUREMENT PROCEDURE

Note: for sample preparation follow the IRRIGATION WATER (LR) procedure on
page 17.

• Select the

Method Selection

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

Magnesium

method using the procedure described in the

section (see page 12).

1 mL

• 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 (Mg).

INTERFERENCES

Interferences may be caused by:
Acidity (as CaCO
Alkalinity (as CaCO

Calcium (Ca
Iron must be absent
Aluminum must be absent
Copper must be absent

) above 1000 mg/L

3

) above 1000 mg/L

3

2+

) above 200 mg/L

Magnesium

74 75

Magnesium

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
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 128.

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.

Manganese HR

Method Selection

Standard Methods for the Examination of Water and Wastewater,

Periodate method. The reaction between manganese and reagents causes

method using the procedure

section (see page 12).

10 mL

• Add the content of one packet of HI 93709B-0 Sodium Periodate
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 30
seconds and press READ. When the timer ends the meter will
perform the reading. The instrument displays the results in
mg/L of manganese.

• Press the  or  to access the second level of functions.

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

).

4

) and

4

• Press 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 shake gently
until completely dissolved.

Manganese HR

76 77

• Press the  or  to go back 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

MANGANESE LOW RANGE

SPECIFICATIONS

Range 0 to 300 µg/L
Resolution 1 µg/L
Accuracy ±2 µg/L ±3% of reading
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 (only when necessary, see note)

REAGENT SETS

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

For other accessories see page 128.

MEASUREMENT PROCEDURE

• Select the

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

Method Selection

the

Manganese LR

section (see page 12).

method using the procedure described in

10 mL

• Add 0.2 mL of the HI 93748B-0 Alkaline-cyanide reagent
solution to each cuvette, replace the caps and shake gently.

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

• 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.

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

Manganese LR

78 79

10 mL

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

Manganese LR

• Press READ to start the reading. The instrument displays the results in µg/L of manganese.

• Press the  or  to access the second level of functions.

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

permanganate (MnO

).

4

• Press the  or  to go back to the measurement screen.

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

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

MOLYBDENUM

SPECIFICATIONS

Range 0.0 to 40.0 mg/L
Resolution 0.1 mg/L
Accuracy ±0.3 mg/L ±5% of reading
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 128.

MEASUREMENT PROCEDURE

• Select the
described in the

12).

• 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

Manganese LR

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

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

80 81 Molybdenum

• 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.

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

• 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 the  or  to access the second level of functions.

• Press the Chem Frm functional key to convert the result in mg/L of molybdate (MoO
molybdate (Na

MoO4).

2

) and sodium

4

• Press the  or  to go back 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 NO
Sulfate above 200 mg/L
Highly buffered samples or with extreme pH may exceed the buffering capacity of the reagents.

–

2

• Insert the cuvette into the instrument.

Molybdenum

82 83

Molybdenum

NICKEL HIGH RANGE

SPECIFICATIONS

Range 0.00 to 7.00 g/L
Resolution 0.01 g/L
Accuracy ±4% of reading
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 128.

MEASUREMENT PROCEDURE

• Select the

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

Nickel HR

method using the procedure described

in the

Method Selection

section (see page 12).

sample and replace the cap.

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 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.

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

• Press 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 93726-0 reagent. Replace the cap and shake gently
until completely dissolved.

Nickel HR

84 85

Nickel HR

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
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 128.

MEASUREMENT PROCEDURE

• Select the

Nickel LR

method using the procedure described in

the

Method Selection

section (see page 12).

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

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

10 mL

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

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

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

Note: If sample contains iron (Fe

3+

), 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.

Nickel LR

86 87

• 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

INTERFERENCES

Interference may be caused by:

2+

must not be present

Co

2+

must not be present

Fe

3+

above 32 mg/L

Al

2+

above 1000 mg/L (as CaCO3)

Ca

2+

above 20 mg/L

Cd

–

above 8000 mg/L

Cl

3+

above 20 mg/L

Cr

6+

Cr

above 40 mg/L

2+

above 15 mg/L

Cu

–

above 20 mg/L

F

3+

above 10 mg/L

Fe

+

above 500 mg/L

K

2+

above 400 mg/L

Mg

2+

above 25 mg/L

Mn

6+

above 60 mg/L

Mo

+

Na

above 5000 mg/L

2+

above 20 mg/L

Pb

2+

above 30 mg/L

Zn

NITRATE

SPECIFICATIONS

Range 0.0 to 30.0 mg/L
Resolution 0.1 mg/L
Accuracy ±0.5 mg/L ±10% of reading
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 128.

MEASUREMENT PROCEDURE

• Select the
the

• Using the pipette, fill the cuvette with 6 ml of sample, up to
half of its height, and replace the cap.

Nitrate

method using the procedure described in

Method Selection

section (see page 12).

6 mL

Nickel LR

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

• Press 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.

88 89

Nitrate

• 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 the  or  to access the second level of functions.

• Press the Chem Frm functional key to convert the result in mg/L of nitrate (NO

NITRITE HIGH RANGE

SPECIFICATIONS

Range 0 to 150 mg/L
Resolution 1 mg/L
Accuracy ±4 mg/L ±4% of reading
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 128.

MEASUREMENT PROCEDURE

• Select the

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

-

).

3

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

• Press ZERO key. The display will show “-0.0-” when the

Nitrite HR

method using the procedure described

Method Selection

in the

section (see page 12).

sample and replace the cap.

meter is zeroed and ready for measurement.

10 mL

• Press the  or  to go back 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

Nitrate

90 91

• Remove the cuvette.

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

Nitrite HR

• 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 the  or  to access the second level of functions.

• Press the Chem Frm functional key to convert the result in mg/L of nitrogen-nitrite (NO
nitrite (NaNO

).

2

–

-N) and sodium

2

NITRITE LOW RANGE

SPECIFICATIONS

Range 0.00 to 0.35 mg/L
Resolution 0.01 mg/L
Accuracy ±0.02 mg/L ±4% of reading
Typical EMC ±0.01 mg/L

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

EPA Diazotization method 354.1

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 128.

MEASUREMENT PROCEDURE

• Select the

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

Nitrite LR

method using the procedure described

Method Selection

in the

section (see page 12).

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

. The reaction between nitrite and

10 mL

• Press the  or  to go back to the measurement screen.

Nitrite HR

92 93

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

• Press 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

• 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 the  or  to access the second level of functions.

• Press the Chem Frm functional key to convert the result in mg/L of nitrogen-nitrite (NO
nitrite (NaNO

).

2

–

-N) and sodium

2

DISSOLVED OXYGEN

SPECIFICATIONS

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

th

18

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 128.

MEASUREMENT PROCEDURE

• Select the

Dissolved Oxygen

Method Selection

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 the

• Press the  or  to go back 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

94 95

• 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.

x 5

Dissolved Oxygen

x 5

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

• After approximately 2 minutes, when the upper half of the bottle becomes

x 10

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

• 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.

OZONE

SPECIFICATIONS

Range 0.00 to 2.00 mg/L
Resolution 0.01 mg/L
Precision ±0.03 mg/L @ 1.00 mg/L
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

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 128.

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
mg/L (O

STANDARD MEASUREMENT PROCEDURE

• Select the
in the

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

pink tint in the sample.

B

from reading A to obtain the ozone concentration in mg/L:

) =

value A

–

3

Ozone

Method Selection

value B

method using the procedure described

section (see page 12).

value A

.

value B

.

10 mL

.

INTERFERENCES

Interferences may be caused by reducing and oxidizing materials.

Dissolved Oxygen

96 97

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

Ozone

• Press 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 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.

• 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

Ozone

• Select the
the

Method Selection

• 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.

method using the procedure described in

section (see page 12).

10 mL

• 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 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 CaCO
To resolve this, neutralize the sample with diluted HCl.
In case of water with hardness greater than 500 mg/L CaCO

minutes after adding the powder reagent.

will not reliably develop the full amount of color or it may rapidly fade.

3

, shake the sample for approximately 2

3

98 99

OzoneOzone

pH

SPECIFICATIONS

Range 6.5 to 8.5 pH
Resolution 0.1 pH
Accuracy ±0.1 pH
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 128.

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.

10 mL

section (see page 12).

• Reinsert the cuvette into the instrument.

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

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

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

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

pH

100 101

x 5

pH

PHOSPHATE HIGH RANGE

SPECIFICATIONS

Range 0.0 to 30.0 mg/L
Resolution 0.1 mg/L
Accuracy ±1 mg/L ±4% of reading
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 128.

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

• 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 the  or  to access the second level of functions.

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

2O5

).

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

• Press 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.

Phosphate HR

102 103

x 10

• Press the  or  to go back 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

3

3

Phosphate HR

PHOSPHATE LOW RANGE

SPECIFICATIONS

Range 0.00 to 2.50 mg/L
Resolution 0.01 mg/L
Accuracy ±0.04 mg/L ±4% of reading
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 128.

MEASUREMENT PROCEDURE

• Select the
scribed 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.

• Press 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

Method Selection

method using the procedure de-

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 phosphate (PO

3-

).

4

• Press the  or  to access the second level of functions.

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

2O5

).

• Press the  or  to go back 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

104 105

Phosphate LR

PHOSPHORUS

SPECIFICATIONS

Range 0.0 to 15.0 mg/L
Resolution 0.1 mg/L
Accuracy ±0.3 mg/L ±4% of reading
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,

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 128.

MEASUREMENT PROCEDURE

• Select the
scribed in the

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

Phosphorus

method using the procedure de-

Method Selection

Standard Methods for the Examination of Water and Wastewater,

Amino Acid method. The reaction between phosphate and reagents

section (see page 12).

10 mL

• 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).

• Press the  or  to access the second level of functions.

• Press the Chem Frm functional key to convert the result in mg/L of phosphate (PO
pentoxide (P

2O5

).

3-

) and phosphorus

4

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

• Press 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

106 107

x 10

• Press the  or  to go back 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

3

3

Phosphorus

POTASSIUM HIGH RANGE

SPECIFICATIONS

Range 20 to 200 mg/L
Resolution 5 mg/L
Accuracy ±30 mg/L ±7% of reading
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 128.

MEASUREMENT PROCEDURE

Note: for sample preparation follow the NUTRIENT SOLUTIONS (HR) procedure at page 19.

• Press 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 HR

method using the procedure

Method Selection

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 HR

108 109

x 6

10 mL

• Press the  or  to access the second level of functions.

• Press the Chem Frm functional key to convert the result in mg/L of potassium oxide (K

• Press the  or  to go back to the measurement screen.

• For ULTRA HIGH RANGE samples: follow the procedure described at page 110.

O)

2

Potassium HR

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 19 for NUTRIENTS SOLUTION (HR). 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 108.
Read the result in mg/L of Potassium on the display and multiply the reading by 5 to obtain the actual

concentration of Potassium.

POTASSIUM MEDIUM RANGE

SPECIFICATIONS

Range 10 to 100 mg/L
Resolution 2.5 mg/L
Accuracy ±15 mg/L ±7% of reading
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 128.

MEASUREMENT PROCEDURE

Note: for sample preparation follow the NUTRIENTS SOLUTION (MR) procedure at page 18.

Potassium HR

• Select the
described in the

Potassium MR

method using the procedure

Method Selection

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.

110 111

10 mL

x 6

Potassium MR

• Press 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).

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
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 128.

MEASUREMENT PROCEDURE

Note: for sample preparation follow the IRRIGATION WATER (LR) procedure at page 17.

• Press the  or  to access the second level of functions.

• Press the Chem Frm functional key to convert the result in mg/L of potassium oxide (K

• Press the  or  to go back 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

Potassium MR

3

3

112 113

• Select the

Potassium LR

described in the

O).

2

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

• Add 6 drops of HI 93750A-0 Potassium Reagent, re-

method using the procedure

Method Selection

section (see page 12).

10 mL

x 6

place the cap and swirl the solution.

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

Potassium LR

• Press 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).

• Press the  or  to access the second level of functions.

• Press the Chem Frm functional key to convert the result in mg/L of potassium oxide (K

O).

2

SILICA

SPECIFICATIONS

Range 0.00 to 2.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.03 mg/L ±3% of reading
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 128.

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,

x 6

10 mL

• Press the  or  to go back 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

Potassium LR

3

3

114 115

• 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.

1’

12

9

3

6

Silica

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

• Press 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 (SiO

).

2

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.

• Press the  or  to access the second level of functions.

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

• Press the  or  to go back to the measurement screen.

Silica

116 117

Silica

SILVER

SPECIFICATIONS

Range 0.000 to 1.000 mg/L
Resolution 0.001 mg/L
Accuracy ±0.005 mg/L ±10% of reading
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

(only when necessary, see note)

REAGENT SETS

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

For other accessories see page 128.

MEASUREMENT PROCEDURE

• Select the

• Fill two graduated beakers with 25 mL of sample.

Silver

method using the procedure described in

Method Selection

the

section (see page 12).

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

# 1

# 2

• Add exactly 1.0 mL of HI 93737B-0 Buffer reagent to the second beaker
(the sample) and swirl gently to mix.

# 2

• 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.

# 2

# 1

• 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.

# 2

# 1

• Then press TIMER or, alternatively, wait for 2 minutes to allow reaction to complete.

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

Silver

118 119

# 1

10 mL

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

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

10 mL

# 1

# 1

Silver

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

10 mL

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

# 2

SULFATE

SPECIFICATIONS

Range 0 to 150 mg/L
Resolution 5 mg/L
Accuracy ±5 mg/L ±3% of reading
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.

• Insert the second cuvette into the instrument.

# 2

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

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 completely
dissolved.

INTERFERENCES

Interference may be caused by:

3+

Al

above 30 mg/L Fe2+ above 1.5 mg/L

2+

above 1000 mg/L as CaCO3Fe3+ above 10 mg/L

Ca

2+

Cd

above 20 mg/L K+ above 500 mg/L

-

Cl

above 8000 mg/L Mn2+ above 25 mg/L

2+

above 1.5 mg/L Mg2+ above 1000 mg/L as CaCO

Co
Cr3+ above 20 mg/L Na+ above 5000 mg/L

6+

Cr

above 40 mg/L Ni2+ above 1.5 mg/L

2+

above 15 mg/L Pb2+ above 20 mg/L

Cu

-

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 17.

MEASUREMENT PROCEDURE

Note: for sample preparation follow the IRRIGATION WATER (LR) procedure on page 17.

Sulfate

• Select the
in the

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

method using the procedure described

Method Selection

section (see page 12).

10 mL

Silver

• Remove the cuvette.

120 121

Sulfate

ZINC

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

12

9

6

• Replace the cap and shake gently for 1 minute.

• 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 CaCO

Chloride (as Cl
Magnesium (as MgCO
Silica (as SiO

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.

) above 20000 mg/L

3

-

) above 40000 mg/L

) above 10000 mg/L

3

) above 500 mg/L

2

1’

3

SPECIFICATIONS

Range 0.00 to 3.00 mg/L
Resolution 0.01 mg/L
Accuracy ±0.03 mg/L ±3% of reading
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 128.

MEASUREMENT PROCEDURE

• Select the

• Fill one graduated mixing cylinder up to the 20 mL

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

Zinc

method using the procedure described in

Method Selection

the

section (see page 12).

mark 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.

122 123

10 mL

Zinc

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

• Press 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

124 125

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.

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
Cyanide 0.000 to 0.200 mg/L Pyridine-Pyrazolone
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 150 mg/L Turbidimetric
Zinc 0.00 to 3.00 mg/L Zincon

126 127

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 93714-01 100 cyanide tests
HI 93714-03 300 cyanide 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 93747-01 100 copper LR tests
HI 93747-03 300 copper 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 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

128 129

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 beakers (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.

130 131

SALES AND TECHNICAL SERVICE CONTACTS

Tel. [phone] • Fax [phone]

e-mail: [e-mail]

China:

Australia:

Tel. [phone] • Fax [phone]

e-mail: [e-mail]

Egypt:

Tel. & Fax [phone]

e-mail: [e-mail]

Germany:

Tel. [phone] • Fax [phone]

e-mail: [e-mail]

Greece:

Tel. [phone] • Fax [phone]

e-mail: [e-mail]

Indonesia:

Tel. [phone] • Fax [phone]

e-mail: [e-mail]

Japan:

Tel. [phone] • Fax [phone]

e-mail: [e-mail]

Korea:

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MAN83200 05/08

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