Hanna Instruments HI83099 Owner Manual

Instruction Manual
HI 83099
COD and Multiparameter Bench
Photometer
www.hannainst.com
1
Dear Customer,
Thank you for choosing a Hanna Instruments product. Please read this instruction manual carefully before
using this instrument. This manual will provide you with the necessary information for correct use of this
instrument, as well as a precise idea of their versatility. If you need additional technical information, do not
hesitate to e-mail us at [email protected] or view our worldwide contact list at www.hannainst.com.
TABLE OF CONTENTS
IRON HR ........................................................................ 66
IRON LR ......................................................................... 68
MAGNESIUM .................................................................. 71
MANGANESE HR ............................................................. 73
MANGANESE LR ............................................................. 75
MOLYBDENUM ............................................................... 78
NICKEL HR ..................................................................... 81
NICKEL LR ...................................................................... 83
NITRATE ......................................................................... 86
NITRITE HR .................................................................... 88
NITRITE LR ..................................................................... 90
DISSOLVED OXYGEN ........................................................ 92
OXYGEN DEMAND, CHEMICAL HR ..................................... 94
OXYGEN DEMAND, CHEMICAL MR ..................................... 97
OXYGEN DEMAND, CHEMICAL LR .................................... 100
OZONE ........................................................................ 103
pH .............................................................................. 106
PHOSPHATE HR ............................................................ 108
PHOSPHATE LR ............................................................. 110
PHOSPHORUS ............................................................. 112
POTASSIUM HR ............................................................ 114
POTASSIUM MR ............................................................ 116
POTASSIUM LR ............................................................. 118
SILICA ......................................................................... 120
SILVER ........................................................................ 122
SULFATE ...................................................................... 125
ZINC ............................................................................ 127
ERRORS AND WARNINGS ............................................... 129
DATA MANAGEMENT ...................................................... 130
STANDARD METHODS .................................................... 131
ACCESSORIES .............................................................. 132
WARRANTY .................................................................. 135
HANNA LITERATURE ...................................................... 135
PRELIMINARY EXAMINATION ............................................. 3
GENERAL DESCRIPTION ..................................................... 3
ABBREVIATIONS ............................................................... 4
SPECIFICATIONS .............................................................. 4
PRECISION AND ACCURACY ............................................... 4
PRINCIPLE OF OPERATION ................................................ 5
FUNCTIONAL DESCRIPTION ............................................... 6
TIPS FOR AN ACCURATE MEASUREMENT ........................... 8
HEALTH & SAFETY .......................................................... 11
METHOD REFERENCE TABLE ............................................. 11
OPERATIONAL GUIDE ....................................................... 12
SETUP ........................................................................... 14
HELP MODE ................................................................... 16
SAMPLE PREPARATION .................................................... 17
ALUMINUM .................................................................... 21
ALKALINITY .................................................................... 23
AMMONIA MR ................................................................ 25
AMMONIA LR ................................................................. 27
BROMINE ...................................................................... 29
CALCIUM ....................................................................... 31
FREE CHLORINE ............................................................. 33
TOTAL CHLORINE ............................................................ 36
CHLORINE DIOXIDE ......................................................... 39
CHROMIUM VI HR .......................................................... 42
CHROMIUM VI LR ........................................................... 44
COLOR OF WATER ........................................................... 46
COPPER HR .................................................................... 48
COPPER LR .................................................................... 50
CYANURIC ACID .............................................................. 52
FLUORIDE ...................................................................... 54
CALCIUM HARDNESS ....................................................... 56
MAGNESIUM HARDNESS ................................................. 59
HYDRAZINE .................................................................... 62
IODINE .......................................................................... 64
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.
2
PRELIMINARY EXAMINATION
Please examine this product carefully. Make sure that the instrument is not damaged. If any damage
occurred during shipment, please notify your local Hanna Office.
Each meter is supplied complete with:
• Four Sample Cuvettes and Caps
• Sample Preparation Kit (for turbid or concentrated samples see page 17)
• Cloth for wiping cuvettes (1 pc.)
• 60 mL glass bottle for dissolved oxygen analysis (1 pc.)
• Scissors
• AC/DC Power Adapter
• Instruction Manual
The sample preparation kit contains:
• 2 plastic beakers (100 and 170 mL)
• 1 graduated cylinder (100 mL)
• 1 syringe with screw rim (60 mL)
• 1 syringe (5 mL)
• 1 funnel
• 25 filter discs
• 1 spoon
• 2 pipettes
• Carbon powder packets (50 pcs.)
• 1 Demineralizer Bottle with filter cap for about 12 liters of deionized water (depending on the
hardness level of water to be treated)
Note: Save all packing material until you are sure that the instrument works correctly. Any defective item
must be returned in its original packing with the supplied accessories.
GENERAL DESCRIPTION
HI 83099 is a multiparameter bench photometer dedicated for Laboratory analysis. It measures 47
different methods using specific liquid or powder reagents. The amount of reagent is precisely dosed to
ensure maximum reproducibility.
HI 83099 bench photometer can be connected to a PC via an USB cable. The optional HI 92000
Windows® Compatible Software helps users manage all their results.
HI 83099 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.
3
ABBREVIATIONS
EPA:
°C:
°F:
µg/L:
mg/L:
g/L:
mL:
HR:
MR:
LR:
PAN:
TPTZ:
US Environmental Protection Agency
degree Celsius
degree Fahrenheit
micrograms per liter (ppb)
milligrams per liter (ppm)
grams per liter (ppt)
milliliter
high range
medium range
low range
1-(2-pyridylazo)-2-naphtol
2,4,6-tri-(2-pyridyl)-1,3,5-triazine
SPECIFICATIONS
Light Life
Light Detector
Environment
Life of the instrument
Silicon Photocell
0 to 50 °C (32 to 122 °F);
max 90% RH non-condensing
Power Supply
external 12 Vdc power adapter
built-in rechargeable battery
Dimensions
235 x 200 x 110 mm (9.2 x 7.87 x 4.33")
Weight
0.9 Kg
For specifications related to each method (e.g. range, resolution, etc.) refer to the related measurement
section.
PRECISION AND ACCURACY
Precision is how closely repeated measurements agree
with each other. Precision is usually expressed as
standard deviation (SD).
Accuracy is defined as the nearness of a test result to
the true value.
Although good precision suggests good accuracy, precise
results can be inaccurate. The figure explains these
definitions.
For each method, the accuracy is expressed in the
related measurement section.
4
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/Io = ελ c d
or
A = ελ c d
Where:
-log I/Io= Absorbance (A)
Io = intensity of incident light beam
I = intensity of light beam after absorption
ελ = molar extinction coefficient at wavelength λ
c = molar concentration of the substance
d = optical path through the substance
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 83099 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
through the sample contained in the cuvette. The optical path is fixed by the diameter of the cuvette. Then
the light is spectrally filtered to a narrow spectral bandwidth, to obtain a light beam of intensity Io or I.
The photoelectric cell collects the radiation I that is not absorbed by the sample and converts it into an
electric current, producing a potential in the mV range.
The microprocessor uses this potential to convert the incoming value into the desired measuring unit and to
display it on the LCD.
5
The measurement process is carried out in two phases: first the meter is zeroed and then the actual
measurement is performed.
The cuvette has a very important role because it is an optical element and thus requires particular attention. It
is important that both the measurement and the calibration (zeroing) cuvette are optically identical to provide the
same measurement conditions. Most methods use the same cuvette for both, so it is important that measurements
are taken at the same optical point. The instrument and the cuvette cap have special marks that must be
aligned in order to obtain better reproducibility.
The surface of the cuvette must be clean and not scratched. This is to avoid measurement interference due to
unwanted reflection and absorption of light. It is recommended not to touch the cuvette walls with hands.
Furthermore, in order to maintain the same conditions during the zeroing and the measurement phases,
it is necessary to cap the cuvette to prevent any contamination.
FUNCTIONAL DESCRIPTION
INSTRUMENT DESCRIPTION
6
1)
2)
3)
4)
5)
6)
7)
8)
Open Cuvette Lid
Indexing mark
Cuvette point
Liquid Crystal Display (LCD)
Splash proof keypad
ON/OFF power switch
Power input connector
USB connector
KEYPAD DESCRIPTION
The keypad contains 8 direct keys and 3 functional keys with the following functions:
Press to perform the function displayed above it on the LCD.
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.
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, and should be removed by
treatment with active carbon and filtration: refer to Sample Preparation Chapter (page 17).
• Ensure the cuvette is filled correctly: the liquid in the cuvette forms a convexity on the top; the bottom
of this convexity must be at the same level as the 10 mL mark.
COLLECTING AND MEASURING SAMPLES
• In order to measure exactly 0.5 mL of reagent with the 1 mL syringe:
(a) push the plunger completely into the syringe and insert the tip into the solution.
(b) pull the plunger up until the lower edge of the seal is exactly on the 0.0 mL mark.
(c) take out the syringe and clean the outside of the syringe tip. Be sure that no drops are hanging
on the tip of the syringe, if so eliminate them. Then, keeping the syringe in vertical position above
the cuvette, push the plunger down into the syringe until the lower edge of the seal is exactly on
the 0.5 mL mark. Now the exact amount of 0.5 mL has been added to the cuvette, even if the
tip still contains some solution.
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)
8
• Proper use of the powder reagent packet:
(a) use scissors to open the powder packet;
(b) push the edges of the packet to form a spout;
(c) pour out the content of the packet.
USING CUVETTES
• Proper mixing is very important for reproducibility of the measurements. The right way of mixing a
cuvette is specified for each method in the related chapter.
(a) invert the cuvette a couple of times or for a specified time: hold the cuvette in the vertical position. Turn
the cuvette upside-down and wait for all of the solution to flow to the cap end, then return the cuvette
to the upright vertical position and wait for all of the solution to flow to the cuvette bottom. This is one
inversion. The correct speed for this mixing technique is 10-15 complete inversions in 30 seconds.
This mixing technique is indicated with “invert to mix” and the following icon:
(b) shaking the cuvette, moving the cuvette up and down. The movement may be gentle or vigorous.
This mixing method is indicated with “shake gently” or “shake vigorously”, and one of the following
icons:
shake gently
shake vigorously
9
• Pay attention to push the cuvette completely down in the holder and to align the white point on the
cap to the indexing mark on the meter.
• In order to avoid reagent leaking and to obtain more accurate
measurements, close the cuvette first with the supplied HDPE plastic
and then the black cap.
stopper
• Each time the cuvette is used, the cap must be tightened to the same degree.
• Whenever the cuvette is placed into the measurement cell, it must be dry
outside, and free of fingerprints, oil or dirt. Wipe it thoroughly with
HI 731318 or a lint-free cloth prior to insertion.
• Shaking the cuvette can generate bubbles in the sample, causing higher
readings. To obtain accurate measurements, remove such bubbles by
swirling or by gently tapping the cuvette.
• Do not let the reacted sample stand too long after reagent is added. For
best accuracy, respect the timings described in each specific method.
• It is possible to take multiple readings in a row, but it is recommended
to take a new zero reading for each sample and to use the same cuvette
for zeroing and measurement when possible (for most precise results follow
the measurement procedures carefully).
• Discard the sample immediately after the reading is taken, or the glass might become permanently
stained.
• All the reaction times reported in this manual are at 25 °C (77 °F). In general, the reaction time
should be increased for temperatures lower than 20 °C (68 °F), and decreased for temperatures higher
than 25 °C (77 °F).
INTERFERENCES
• In the method measurement section the most common interferences that may be present in an average
sample matrix have been reported. It may be that for a particular treatment process other compounds
do interfere with the method of analysis.
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HEALTH & SAFETY
• The chemicals contained in the reagent kits may be hazardous if improperly handled.
• Read the Material Safety Data Sheet (MSDS) before performing tests.
• Safety equipment: Wear suitable eye protection and clothing when required, and follow instructions
carefully.
• Reagent spills: If a reagent spill occurs, wipe up immediately and rinse with plenty of water.
If reagent contacts skin, rinse the affected area thoroughly with water. Avoid breathing released vapors.
• Waste disposal: for proper disposal of reagent kits and reacted samples, refer to the Material Safety
Data Sheet (MSDS).
METHOD REFERENCE TABLE
Method
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Method
description
Aluminum
Alkalinity
Ammonia MR
Ammonia LR
Bromine
Calcium
Free Chlorine
Total Chlorine
Chlorine Dioxide
Chromium VI HR
Chromium VI LR
Color of Water
Copper HR
Copper LR
Cyanuric Acid
Fluoride
Calcium Hardness
Magnesium Hardness
Hydrazine
Iodine
Iron HR
Iron LR
Magnesium
Manganese HR
Page
Method
21
23
25
27
29
31
33
36
39
42
44
46
48
50
52
54
56
59
62
64
66
68
71
73
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
11
Method
description
Manganese LR
Molybdenum
Nickel HR
Nickel LR
Nitrate
Nitrite HR
Nitrite LR
Dissolved Oxygen
COD HR
COD MR
COD LR
Ozone
pH
Phosphate HR
Phosphate LR
Phosphorus
Potassium HR
Potassium MR
Potassium LR
Silica
Silver
Sulfate
Zinc
Page
75
78
81
83
86
88
90
92
94
97
100
103
106
108
110
112
114
116
118
120
122
125
127
OPERATIONAL GUIDE
POWER CONNECTION AND BATTERY MANAGEMENT
The meter can be powered from an AC/DC adapter (included) or from the built-in rechargeable battery.
Note: Always turn the meter off before unplugging it to ensure no data is lost.
When the meter switches ON, it verifies if the power supply adapter is connected. The battery icon on the
LCD will indicate the battery status:
- battery is charging from external adapter
- battery fully charged (meter connected to AC/DC adapter)
- battery capacity (no external adapter)
- battery Low (no external adapter)
- battery Dead (no external adapter)
METHOD SELECTION
• Turn the instrument ON via the ON/OFF power switch.
• The meter will perform an autodiagnostic test. During this test, the Hanna Instrument logo will appear
on the LCD. After 5 seconds, if the test was successful, the last method used will appear on the display.
• In order to select the desired method press the METHOD key and a screen with the available methods
will appear.
• Press the s t keys to highlight the desired method. Press Select.
12
• After the desired method is selected, follow the measurement described in the related section.
• Before performing a test you should read all the instructions carefully.
DATA MANAGEMENT
The instrument features a data log function to help you keep track of all your analysis. The data log can
hold 200 individual measurements. Storing, viewing and deleting the data is possible using the LOG
and RCL keys..
Storing data: You can store only a valid measurement. Press LOG and the last valid measurement will be
stored with date and time stamps.
Viewing and deleting: You can view and delete the data log by pressing the RCL key. You can only delete
the last saved measurement. Additionally, you can delete the data records all at once.
CHEMICAL FORM
Chemical form conversion factors are pre-programmed into the instrument and are method specific. In order
to view the displayed result in the desired chemical form press s or t to access the second level function
and then press the Chem Frm key to toggle between the available chemical forms for the selected method.
SPECIAL CONVERSIONS
For Magnesium and Calcium Hardness, special conversion factors can be used to convert the readings from
mg/L to French degrees (°f), German degrees (°dH) and English degrees (°E) of hardness. This can be
achieved by pressing s or t to access the second level functions and then press the Unit key to toggle
between °f, °dH, °E and mg/L.
13
SETUP
In the Setup mode the instrument’s parameters can be changed. Some parameters affect the measuring
sequence and others are general parameters that change the behavior or appearance of the instrument.
Press SETUP to enter the setup mode.
Press ESC or SETUP to return to the main screen.
A list of setup parameters will be displayed with currently
configured settings. Press HELP for additional information.
Press the s t keys to select a parameter and change the
value as follows:
Backlight
Values: 0 to 8.
Press the Modify key to access the backlight value.
Use the ⊳ u functional keys or the s t keys to increase or
decrease the value.
Press the Accept 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 the Modify key to change the display’s contrast.
Use the ⊳ u functional keys or the s t keys to increase or
decrease the value.
Press the Accept key to confirm the value or ESC to return to the
setup menu without saving the new value.
14
Date / Time
This option is used to set the instrument’s date and time.
Press the Modify key to change the date/time.
Press the ⊳ u functional keys to highlight the value to be
modified (year, month, day, hour, minute or second). Use the
s t keys to change the value.
Press the Accept key to confirm or ESC to return to the setup
without saving the new date or time.
Time format
Option: AM/PM or 24 hour.
Press the functional key to select the desired time format.
Date format
Press the Modify key to change the Date Format.
Use the s t keys to select the desired format.
Press Accept functional key to confirm or ESC to return to the
setup menu without saving the new format.
Language
Press the corresponding key to change the language.
If the new language cannot be loaded, the previously selected
language will be reloaded.
Tutorial
Option: Enable or Disable.
If enabled this option will provide the user short guide related to
the current screen.
Press the functional key to enable/disable the tutorial mode.
Beeper
Option: Enable or Disable.
When enabled, a short beep is heard every time a key is pressed.
A long beep alert sounds when the pressed key is not active or an
error is detected.
Press the functional key to enable/disable the beeper.
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 the Modify key to access the instrument ID screen. Press the
s t keys in order to set the desired value.
Press the Accept key to confirm the value or ESC to return to the
setup menu without saving the new value.
Meter information
Press the Select key to view the instrument model, firmware
version, language version and instrument serial number.
Press ESC to return to the Setup mode.
HHELP
E L P MODE
MODE
HI 83099 offers an interactive contextual help mode that assists the user at any time.
To access the help screens press HELP.
The instrument will display additional information related to the
current screen. To read all the available information, scroll the
text using the s t keys.
Press the Support key to access a screen with Hanna service
centers and their contact details.
Press the Accessories key to access a list of instrument reagents
and accessories.
To exit support or accessories screens press ESC and the instrument will return to the previous help screen.
To exit help mode press the HELP or ESC key again and the
meter will return to the previously selected screen.
16
SAMPLE PREPARATION
SAMPLE PREPARATION PROCEDURE
The following Sample Preparation Procedure applies in case of:
• Samples with color or suspended matter (turbidity).
• Concentrated samples, for which the analysis result is over the range of the parameter.
Use the accessories contained in the Sample Preparation Kit to prepare the sample according to the
following instructions.
COLORED OR TURBID SAMPLES:
Colored or suspended matter in large amounts may cause interference. They should be removed by
treatment with active carbon and filtration.
• If the water sample contains suspended matter, let it stand in a beaker until most of the solid particles
have settled. Then, use the pipette to transfer the supernatant solution to the other beaker. To prevent
the displacement of the settled solids at the bottom of the beaker, do not induce air bubbles into the
solution.
• Measure 100 mL of sample with the graduated cylinder.
• If the solution still contains some turbidity or color, pour
it in the large 170 mL beaker and add a powder packet
of active carbon.
• Mix well using the spoon and then wait for 5 minutes.
• Fold a filter disc twice as shown in the figure. Separate
one side from the other three to form a cone. Insert the
folded filter disc in the funnel.
17
• Filter the treated sample into an empty beaker.
The sample is now ready.
• If the solution is still turbid or colored, treat it again with a packet of active carbon. After use, throw
the filter disc away and wash the syringe and the filter assembly well. Always use a new disc for
another sample.
CONCENTRATED SAMPLES:
If the analysis result is over the method range, the sample should be diluted. The following procedure
describe how to dilute the sample by a factor “N” (that is, to dilute by “N times”):
• Use the graduated cylinder to measure exactly V mL of sample. For volumes V < 20 mL, accurately
dose the sample by mean of the syringe.
Note: To measure exactly 5 mL of sample with the syringe, push the plunger completely into the
syringe and insert the tip into the sample. Pull the plunger out until the lower edge of the seal
is on the 5 mL mark of the syringe.
18
• Remove the cap and fill the Demineralizer Bottle with tap water.
• Replace the cap and shake gently for at least 2 minutes.
• Open the upper part of the Demineralizer Bottle cap and gently squirt the demineralized water into 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 170 mL beaker, replace the cap and invert several times to mix.
19
• If the solution contains some turbidity or color, add a powder packet of active carbon and follow the
procedure described in previous section Colored or Turbid Samples.
• Calculate the dilution factor N:
N = 100/V
Where:
V is the volume of original sample poured in the cylinder, expressed in mL, and 100 is the final volume
in the cylinder, expressed in mL.
• When performing the reading, pay attention to multiply the read value by the dilution factor in order
to obtain the real concentration of the analyte in the original sample:
Example:
Reading = value A
Dilution factor = N
Real value in the original sample = A x N
Note: The methods Potassium Medium Range and Potassium High Range require a dilution of 1:5
(N = 5, V = 20 mL) and 1:10 (N = 10, V = 10 mL) of the sample. As the dilution is always
done, it is already included in the final result and is not necessary to multiply by the dilution factor.
20
ALUMINUM
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 1.00 mg/L
0.01 mg/L
±0.02 mg/L ±4% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the aluminon method. The reaction between aluminum and reagents
causes a reddish tint in the sample.
REQUIRED REAGENTS
Code
HI 93712A-0
HI 93712B-0
HI 93712C-0
Description
Ascorbic acid
Aluminon reagent
Bleaching powder
Quantity
1 packet
1 packet
1 packet
REAGENT SETS
HI 93712-01 Reagents for 100 tests
HI 93712-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Aluminum method using the procedure described in
the Method Selection section (see page 12).
• Fill a graduated beaker with 50 mL of sample.
• Add the content of one packet of HI 93712A-0 Ascorbic acid
and mix until completely dissolved.
• Add the content of one packet of HI 93712B-0 Aluminon
reagent and mix until completely dissolved. This is the sample.
• Fill two cuvettes with 10 mL of sample each (up to the mark).
21
10 mL
10 mL
#1
#2
Aluminum
• Add the content of one packet of HI 93712C-0 Bleaching
powder to one of the two cuvettes. Replace the cap and shake
vigorously until completely dissolved. This is the blank.
#1
• Place the blank into the holder and close the lid.
• Press Timer and the display will show the countdown prior to
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.
#1
#2
• Remove the blank and insert the other cuvette into the instrument.
• Press the Read key and the meter will perform the reading. The instrument displays the results in
mg/L of aluminum.
• Press s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of Al2O3.
• Press s or t to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
Iron above 20 mg/L, Alkalinity above 1000 mg/L, Phosphate above 50 mg/L; Fluoride must be absent.
Aluminum
22
ALKALINITY
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0 to 500 mg/L (as CaCO3)
5 mg/L
±5 mg/L ±10% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 575 nm
Colorimetric Method. The reaction causes a distinctive range of colors from yellow to
green to greenish blue to develop.
REQUIRED REAGENTS
Code
HI 93755-0
Description
Alkalinity Indicator Reagent
Quantity/test
1 mL
REAGENT SETS
HI 93755-01 Reagents for 100 tests
HI 93755-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Alkalinity method using the procedure described in
the Method Selection section (see page 12).
10 mL
• Fill the cuvette with 10 mL of unreacted sample (up to the
mark) and replace the cap.
• Place the cuvette into the holder and close the lid
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
23
Alkalinity
• Remove the cuvette.
Note: Any chlorine present in the sample will interfere with the
reading. To remove the chlorine interference add one drop
of HI 93755-53 Chlorine Remover to the unreacted sample
• Carefully add exactly 1 mL of HI 93755-0 Liquid Alkalinity
Reagent using the supplied syringe.
• Replace the cap and invert 5 times.
• Reinsert the cuvette into the instrument and close the lid.
• Press Read to start the reading.
• The instrument displays the results in mg/L of alkalinity (CaCO3).
Note: If using a meter with software version 1.14 or earlier, readings can be improved for samples with
less than 75 ppm alkalinity by adding 0.7 mL of reagent instead of 1.0 mL.
Alkalinity
24
AMMONIA MEDIUM RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 10.00 mg/L
0.01 mg/L
±0.05 mg/L ±5% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 420 nm
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
HI 93715A-0
HI 93715B-0
Description
First Reagent
Second Reagent
Quantity
4 drops
4 drops
REAGENT SETS
HI 93715-01 Reagents for 100 tests
HI 93715-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Ammonia MR method using the procedure described in
the Method Selection section (see page 12).
10 mL
• Fill the cuvette with 10 mL of unreacted sample (up to the mark)
and replace the cap.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
25
Ammonia MR
• Remove the cuvette.
• Add 4 drops of HI 93715A-0 First Reagent. Replace the cap
and mix the solution.
• Add 4 drops of HI 93715B-0 Second Reagent. Replace the cap
and mix the solution.
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the
measurement or, alternatively, wait for 3 minutes and 30 seconds
and press Read. When the timer ends the meter will perform the
reading. The instrument displays the results in mg/L of ammonia
nitrogen (NH3-N).
• Press s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of ammonia (NH3) and ammonium (NH4+).
• Press s or t to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
acetone, alcohols, aldehydes, glycine, hardness above 1 g/L, iron, organic chloramines, sulfide, various
aliphatic and aromatic amines.
Ammonia MR
26
AMMONIA LOW RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 3.00 mg/L
0.01 mg/L
±0.04 mg/L ±4% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 420 nm
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
HI 93700A-0
HI 93700B-0
Description
First Reagent
Second Reagent
Quantity
4 drops
4 drops
REAGENT SETS
HI 93700-01 Reagents for 100 tests
HI 93700-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Ammonia LR method using the procedure described in the
Method Selection section (see page 12).
10 mL
• Fill the cuvette with 10 mL of unreacted sample (up to the mark)
and replace the cap.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
27
Ammonia LR
• Remove the cuvette.
• Add 4 drops of HI 93700A-0 First Reagent. Replace the cap
and mix the solution.
• Add 4 drops of HI 93700B-0 Second Reagent. Replace the cap
and mix the solution.
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the
measurement or, alternatively, wait for 3 minutes and 30 seconds and
press Read. When the timer ends the meter will perform the reading.
The instrument displays the results in mg/L of ammonia nitrogen
(NH3-N).
• Press s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of ammonia (NH3) and ammonium (NH4+).
• Press s or t to return to the measurement screen.
INTERFERENCES
Interference may be caused by: acetone, alcohols, aldehydes, glycine, hardness above 1 g/L, iron, organic
chloramines, sulfide, various aliphatic and aromatic amines.
Ammonia LR
28
BROMINE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 8.00 mg/L
0.01 mg/L
±0.08 mg/L ±3% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the Standard Methods for the Examination of Water and Wastewater,
18th edition, DPD method. The reaction between bromine and the reagent causes a
pink tint in the sample.
REQUIRED REAGENTS
Code
HI 93716-0
Description
DPD Reagent
Quantity
1 packet
REAGENT SETS
HI 93716-01 Reagents for 100 tests
HI 93716-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Bromine method using the procedure described in the
Method Selection section (see page 12).
10 mL
• Fill the cuvette with 10 mL of unreacted sample (up to the
mark) and replace the cap.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
29
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.
INTERFERENCES
Interference may be caused by: Chlorine, Iodine, Ozone, Oxidized forms of Chromium and Manganese.
In case of water with hardness greater than 500 mg/L CaCO3, shake the sample for approximately
2 minutes after adding the reagent.
In case of water with alkalinity greater than 250 mg/L CaCO3 or acidity greater than 150 mg/L CaCO3,
the color of the sample may develop only partially, or may rapidly fade. To resolve this, neutralize the
sample with diluted HCl or NaOH.
Bromine
30
CALCIUM
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0 to 400 mg/L
10 mg/L
±10 mg/L ±5% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 466 nm
Adaptation of the Oxalate method.
REQUIRED REAGENTS
Code
HI 93752A-0 Ca
HI 93752B-0 Ca
Description
Buffer Reagent
Calcium Buffer Reagent
Calcium Oxalate Reagent
Quantity
4 drops
7 mL
1 mL
REAGENT SETS
HI 937521-01
Reagents for 50 tests
HI 937521-03
Reagents for 150 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
Note: For sample preparation follow the COLORED OR TURBID SAMPLES procedure at page 17.
• Select the Calcium method using the procedure described in the Method Selection section (see page 12).
• Using the 5 mL syringe add exactly 3.00 mL of sample to the cuvette.
3 mL of sample
• Use the pipette to fill the cuvette up to the
10 mL mark with the HI 93752A-0 Calcium
Buffer Reagent.
• Add 4 drops of Buffer Reagent.
31
Calcium
• Replace the cap and invert several times to mix.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for measurement.
• Remove the cuvette.
• Using the 1 mL syringe, add exactly 1 mL of the
HI 93752B-0 Calcium Oxalate Reagent. Replace the
cap and invert the cuvette 10 times to mix (about
15 seconds).
• Press Timer or wait for 5 minutes. Then invert again
the cuvette 10 times to mix (about 15 seconds).
• Reinsert the cuvette into the instrument.
• Press Read to start the reading. The instrument displays the results in mg/L of Calcium.
INTERFERENCES:
Interferences may be caused by:
Acidity (as CaCO3) above 1000 mg/L
Alkalinity (as CaCO3) above 1000 mg/L
Magnesium (Mg2+) above 400 mg/L
Calcium
32
FREE CHLORINE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 2.50 mg/L
0.01 mg/L
±0.03 mg/L ±3% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
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
HI 93701-0
LIQUID:
Code
HI 93701A-F
HI 93701B-F
Description
DPD
Quantity
1 packet
Description
DPD1 Indicator
DPD1 Buffer
Quantity
3 drops
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 132.
MEASUREMENT PROCEDURE
• Select the Free Chlorine method using the procedure described
in the Method Selection section (see page 12).
• Fill the cuvette with 10 mL of unreacted sample (up to the
mark) and replace the cap.
10 mL
• Place the cuvette into the holder and close the lid.
33
Free Chlorine
• Press the Zero key. The meter will show “-0.0-” when the meter is zeroed and ready for measurement.
• Remove the cuvette.
Powder reagents procedure
• Add the content of one packet of HI 93701 DPD reagent.
Replace the cap and shake gently for 20 seconds (or 2 minutes
for seawater analysis).
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 1 minute and press Read. When the timer ends the meter will perform the reading. The instrument
displays the results in mg/L of free chlorine.
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.
Free Chlorine
34
• Place the cuvette into the instrument.
• Press Read to start the reading. The instrument displays the results in mg/L of free chlorine.
INTERFERENCES
Interference may be caused by: Bromine, Iodine, Ozone, Oxidized forms of Chromium and Manganese.
In case of water with hardness greater than 500 mg/L CaCO3, shake the sample for approximately
2 minutes after adding the powder reagent.
In case of water with alkalinity greater than 250 mg/L CaCO3 or acidity greater than 150 mg/L CaCO3,
the color of the sample may develop only partially, or may rapidly fade. To resolve this, neutralize the
sample with diluted HCl or NaOH.
35
Free Chlorine
TOTAL CHLORINE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 3.50 mg/L
0.01 mg/L
±0.03 mg/L ±3% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the EPA DPD method 330.5. The reaction between the chlorine and the
DPD reagent causes a pink tint in the sample.
REQUIRED REAGENTS
POWDER:
Code
HI 93711-0
LIQUID:
Code
HI 93701A-T
HI 93701B-T
HI 93701C
Description
DPD
Quantity
1 packet
Description
DPD1 indicator
DPD1 buffer
DPD3 solution
Quantity
3 drops
3 drops
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 132.
MEASUREMENT PROCEDURE
• Select the Total Chlorine method using the procedure
described in the Method Selection section (see page 12).
10 mL
• Fill the cuvette with 10 mL of unreacted sample (up to the
mark) and replace the cap.
• Place the cuvette into the holder and close the lid.
Total Chlorine
36
• Press the Zero key. The meter will show “-0.0-” when the meter is zeroed and ready for measurement.
• Remove the cuvette.
Powder reagents procedure
• Add 1 packet of HI 93711 DPD reagent. Replace the cap and
shake gently for 20 seconds (or 2 minutes for seawater analysis).
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the
measurement or, alternatively, wait for 2 minutes and 30 seconds
and press Read. When the timer ends the meter will perform the
reading. The instrument displays the results in mg/L of total
chlorine.
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.
37
Total Chlorine
• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 2 minutes and 30 seconds and press Read. When the timer ends the meter will perform the
reading.
• The instrument displays the results in mg/L of total chlorine.
Note: Free and total chlorine have to be measured separately with fresh unreacted samples following
the related procedure if both values are requested.
INTERFERENCES
Interference may be caused by: Bromine, Iodine, Ozone, Oxidized forms of Chromium and Manganese.
In case of water with hardness greater than 500 mg/L CaCO3, shake the sample for approximately
2 minutes after adding the powder reagent.
In case of water with alkalinity greater than 250 mg/L CaCO3 or acidity greater than 150 mg/L CaCO3,
the color of the sample may develop only partially, or may rapidly fade. To resolve this, neutralize the
sample with diluted HCl or NaOH.
Total Chlorine
38
CHLORINE DIOXIDE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 2.00 mg/L
0.01 mg/L
±0.10 mg/L ±5% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 575 nm
Adaptation of the Chlorophenol Red method. The reaction between chlorine dioxide and
reagents causes a colorless to purple tint in the sample.
REQUIRED REAGENT
Code
HI 93738A-0
HI 93738B-0
HI 93738C-0
HI 93738D-0
Description
Reagent A
Dechlorinating Reagent B
Reagent C
Reagent D
Quantity
1 mL
1 packet
1 mL
1 mL
REAGENT SETS
HI 93738-01 Reagents for 100 tests
HI 93738-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Chlorine Dioxide method using the procedure
described in the Method Selection section (see page 12).
• Fill two graduated mixing cylinders (# 1 & # 2) up to
the 25 mL mark with the sample.
#1
#2
25 mL
25 mL
• 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
#1
39
#2
Chlorine Dioxide
• Add the content of one packet of HI 93738B-0 Dechlorinating Reagent to one of the two cylinders (# 1),
close and invert it several times until it is totally dissolved. This is the blank.
#1
• Add precisely 0.5 mL of HI 93738C-0 Chlorine Dioxide Reagent to each cylinder (# 1 & # 2), close
them and invert several times to mix.
#1&#2
#1
#2
• Add 0.5 mL of HI 93738D-0 Chlorine Dioxide Reagent to each cylinder (# 1 & # 2), close them and
invert several times to mix. Cylinder # 2 is the reacted sample.
#1&#2
#1
#2
#1
• Fill a cuvette with 10 mL of the blank (# 1) up to the mark
and replace the cap.
10 mL
• Place the blank (# 1) into the holder and close the lid.
#1
Chlorine Dioxide
40
• Press the Zero key. The meter will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Fill another cuvette with 10 mL of the reacted sample (# 2)
up to the mark and replace the cap.
#2
10 mL
#2
• Insert the sample into the instrument.
• Press Read and the meter will perform the reading. The instrument displays the results in mg/L of
chlorine dioxide.
SAMPLING PROCEDURE
It is recommended to analyze chlorine dioxide samples immediately after collection. Chlorine dioxide samples
must be stored in sealed dark glass bottle, with minimal head space. Excessive heat (above 25 °C/78 °F),
agitation and exposure to light must be avoided.
INTERFERENCES
Interferences may be caused by strong oxidants.
41
Chlorine Dioxide
CHROMIUM VI HIGH RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0 to 1000 µg/L
1 µg/L
±5 µg/L ±4% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the ASTM Manual of Water and Environmental Technology, D1687-92,
Diphenylcarbohydrazide method. The reaction between chromium VI and the reagent
causes a purple tint in the sample.
REQUIRED REAGENTS
Code
HI 93723-0
Description
Powder reagent
Quantity
1 packet
REAGENT SETS
HI 93723-01 Reagents for 100 tests
HI 93723-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Chromium VI HR method using the procedure described in
the Method Selection section (see page 12).
• Fill the cuvette with 10 mL of unreacted sample (up to the mark) and
replace the cap.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The meter will show “-0.0-” when the meter is
zeroed and ready for measurement.
• Remove the cuvette and add the content of one packet of
HI 93723-0 reagent. Replace the cap and shake vigorously
for about 10 seconds.
Chromium VI HR
42
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 s or t to access the second level functions.
• Press the Chem Frm key to convert the result in µg/L of Chromate (CrO42¯) and Dichromate (Cr2O72¯).
• Press s or t to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
Vanadium above 1 ppm. However, waiting 10 minutes before reading, the interference is removed
Iron above 1 ppm
Mercurous and mercuric ions cause slight inhibition of the reaction.
43
Chromium VI HR
CHROMIUM VI LOW RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0 to 300 µg/L
1 µg/L
±1 µg/L ±4% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the ASTM Manual of Water and Environmental Technology, D1687-92,
Diphenylcarbohydrazide method. The reaction between chromium VI and the reagent
causes a purple tint in the sample.
REQUIRED REAGENTS
Code
HI 93749-0
Description
Powder reagent
Quantity
1 packet
REAGENT SETS
HI 93749-01 Reagents for 100 tests
HI 93749-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
10 mL
• Select the Chromium VI LR method using the procedure described in
the Method Selection section (see page 12).
• Fill the cuvette with 10 mL of unreacted sample (up to the mark)
and replace the cap.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The meter will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Remove the cuvette and add the content of one packet of
HI 93749-0 reagent. Replace the cap and shake vigorously
for about 10 seconds.
Chromium VI LR
44
• 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 s or t to access the second level functions.
• Press the Chem Frm key to convert the result in µg/L of Chromate (CrO42¯) and Dichromate (Cr2O72¯).
• Press s or t to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
Vanadium above 1 ppm. However, waiting 10 minutes before reading, the interference is removed.
Iron above 1 ppm
Mercurous and mercuric ions cause slight inhibition of the reaction.
45
Chromium VI LR
COLOR OF WATER
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0 to 500 PCU (Platinum Cobalt Units)
1 PCU
±10 PCU ±5% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 420 nm
Adaptation of the Standard Methods for the Examination of Water and Wastewater,
18th edition, Colorimetric Platinum Cobalt method.
REQUIRED ACCESSORIES
0.45 µm membrane for true color measurement.
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Color of Water method using the procedure described in
the Method Selection section (see page 12).
10 mL
#1
• Fill one cuvette up to the mark with deionized water and replace
the cap. This is the blank.
• Place the blank (# 1) into the holder and close the lid.
#1
• Press the Zero key. The meter will show “-0.0-” when the meter is zeroed and ready for measurement.
• Remove the blank.
Color of Water
46
• Fill the second cuvette up to the mark with unfiltered sample
and replace the cap. This is the apparent color.
10 mL
#2
• Filter 10 mL of sample through a filter with a 0.45 µm
membrane into the third cuvette, up to the 10 mL mark and
replace the cap. This is the true color.
• Insert the apparent color cuvette (# 2) into the instrument and
close the lid.
#3
#2
• 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.
#3
• Press Read to start the reading. The meter displays the value of true color in PCU.
47
Color of Water
COPPER HIGH RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 5.00 mg/L
0.01 mg/L
±0.02 mg/L ±4% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 575 nm
Adaptation of the EPA method. The reaction between copper and the bicinchoninate
reagent causes a purple tint in the sample.
REQUIRED REAGENTS
Code
HI 93702-0
Description
Bicinchoninate
Quantity
1 packet
REAGENT SETS
HI 93702-01 Reagents for 100 tests
HI 93702-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Copper HR method using the procedure described in the
Method Selection section (see page 12).
• Fill the cuvette with 10 mL of unreacted sample (up to the mark)
and replace the cap.
10 mL
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The meter will show “-0.0-” when the meter is zeroed and ready for measurement.
Copper HR
48
• Remove the cuvette.
• Add the content of one packet of HI 93702-0 Bicinchoninate.
Replace the cap and shake gently for about 15 seconds.
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively, 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.
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.
49
Copper HR
COPPER LOW RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0 to 1000 µg/L
1 µg/L
±10 µg/L ±5% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 575 nm
Adaptation of the EPA method. The reaction between copper and the bicinchoninate
reagent causes a purple tint in the sample.
REQUIRED REAGENTS
Code
HI 95747-0
Description
Bicinchoninate
Quantity
1 packet
REAGENT SETS
HI 95747-01 Reagents for 100 tests
HI 95747-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Copper LR method using the procedure described in
the Method Selection section (see page 12).
10 mL
• Fill the cuvette with 10 mL of unreacted sample (up to the
mark) and replace the cap.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The meter will show “-0.0-” when the meter is zeroed and ready for measurement.
Copper LR
50
• Remove the cuvette.
• Add the content of one packet of HI 95747-0 Bicinchoninate.
Replace the cap and shake gently for about 15 seconds.
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 45 seconds and press Read. When the timer ends the meter will perform the reading.
• The instrument displays the results in µg/L of copper.
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.
51
Copper LR
CYANURIC ACID
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0 to 80 mg/L
1 mg/L
±1 mg/L ±15% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the turbidimetric method. The reaction between cyanuric acid and the
reagent causes a white suspension in the sample.
REQUIRED REAGENTS
Code
HI 93722-0
Description
Powder reagent
Quantity
1 packet
REAGENT SETS
HI 93722-01 Reagents for 100 tests
HI 93722-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Cyanuric Acid method using the procedure
described in the Method Selection section (see page 12).
10 mL
• Fill the cuvette with 10 mL of unreacted sample (up to the
mark) and replace the cap.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The meter will show “-0.0-” when the meter is zeroed and ready for measurement.
Cyanuric Acid
52
• Add the content of one packet of HI 93722-0 Cyanuric
Acid Reagent. Replace the cap and shake gently for
about 10 seconds (dissolution is not complete).
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 45 seconds and press Read. When the timer ends the meter will perform the reading.
• The instrument displays concentration in mg/L of cyanuric acid.
53
Cyanuric Acid
FLUORIDE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 2.00 mg/L
0.01 mg/L
±0.03 mg/L ±3% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 575 nm
Adaptation of the Standard Methods for the Examination of Water and Wastewater,
18th edition, SPADNS method. The reaction between fluoride and the liquid reagent
causes a red tint in the sample.
REQUIRED REAGENT
Code
HI 93729-0
Description
SPADNS Reagent
Quantity
4 mL
REAGENT SETS
HI 93729-01 Reagents for 100 tests
HI 93729-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Fluoride method using the procedure described in the
Method Selection section (see page 12).
• Add 2 mL of HI 93729-0 SPADNS Reagent to two cuvettes.
2 mL
• Fill one of the cuvettes with distilled water up to the mark,
replace the cap and invert several times to mix.
10 mL
#1
• Fill the other cuvette with sample up to the mark, replace the
cap and invert several times to mix.
• Place the cuvette with the reacted distilled water (# 1) into
the holder and close the lid.
Fluoride
54
#1
10 mL
#2
• 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.
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 CaCO3) above 5000 mg/L
Aluminum above 0.1 mg/L
Iron, ferric above 10 mg/L
Chloride above 700 mg/L
Phosphate, ortho above 16 mg/L
Sodium hexametaphosphate above 1.0 mg/L
Sulfate above 200 mg/L
Highly colored and turbid samples may require distillation
Highly alkaline samples can be neutralized with nitric acid.
55
Fluoride
CALCIUM HARDNESS
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 2.70 mg/L
0.01 mg/L
±0.11 mg/L ±5% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the Standard Methods for the Examination of Water and Wastewater,
18th edition, Calmagite method. The reaction between calcium and reagents causes a
reddish-violet tint in the sample.
REQUIRED REAGENTS
Code
HI 93720A-0
HI 93720B-0
HI 93720C-0
Description
Ca & Mg indicator
Alkali solution
EGTA solution
Quantity
0.5 mL
0.5 mL
1 drop
REAGENT SETS
HI 93720-01 Reagents for 100 tests
HI 93720-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Calcium Hardness method using the procedure
described in the Method Selection section (see page 12).
• Rinse a graduated beaker several times with unreacted
sample, before filling it to the 50 mL mark with the
sample.
• Add 0.5 mL of HI 93720A-0 Calcium indicator solution
and swirl to mix.
• Add 0.5 mL of HI 93720B-0 Alkali solution and swirl to
mix. Use this solution to rinse 2 cuvettes before filling
them up to the 10 mL mark.
Hardness Ca
56
#1
#2
• Add 1 drop of HI 93720C-0 EGTA solution to one cuvette (# 1), replace
the cap and invert the cuvette several times to mix. This is the blank.
#1
• Place the blank (# 1) into the holder and close the lid.
#1
• Press the Zero key. The meter will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Remove the blank and insert the second cuvette (# 2)
into the instrument.
#2
• Press Read to start the reading. The instrument displays concentration in mg/L of calcium
hardness, as CaCO3.
• Press s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of Calcium (Ca2+).
57
Hardness Ca
• Press the Unit key to change the current measurement unit. The results can be converted to French
degrees (°f), German degrees (°dH) and English degrees (°E).
• Press s or t to return to the measurement screen.
Note: This test will detect any calcium contamination in the beaker, measuring syringes or sample cells. To
test cleanliness, repeat the test multiple times until you obtain consistent results.
Note: For better accuracy wash glassware with HCl 6N.
SAMPLE DILUTION
This meter is designed to determine low levels of hardness, typically found in water purification systems.
When testing some other sources of water, it is not uncommon to come across levels of hardness that are
greater than the range of this meter.
This problem can be overcome through dilution. Dilutions must be performed with hardness-free water or the
readings will be erroneous.
A dilution to reduce the level of hardness by a factor of one hundred is performed as follows:
• Fill a 1 mL syringe with the sample.
• Place the syringe in a 50 mL beaker, making sure that the beaker is clean and empty, and inject
0.5 mL into the beaker.
• Fill the beaker up to the 50 mL mark with hardness-free water.
INTERFERENCES
Interference may be caused by excessive amounts of heavy metals.
Hardness Ca
58
MAGNESIUM HARDNESS
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 2.00 mg/L
0.01 mg/L
±0.11 mg/L ±5% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the Standard Methods for the Examination of Water and Wastewater,
18th edition, EDTA colorimetric method. The reaction between magnesium and reagents
causes a reddish-violet tint in the sample.
REQUIRED REAGENTS
Code
HI 93719A-0
HI 93719B-0
HI 93719C-0
HI 93719D-0
Description
Mg indicator
Alkali solution
EDTA solution
EGTA solution
Quantity
0.5 mL
0.5 mL
1 drop
1 drop
REAGENT SETS
HI 93719-01 Reagents for 100 tests
HI 93719-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Magnesium Hardness method using the procedure
described in the Method Selection section (see page 12).
• Rinse a graduated beaker several times with unreacted sample,
before filling it to the 50 mL mark with the sample.
• Add 0.5 mL of HI 93719A-0 Magnesium indicator solution,
then swirl to mix.
• Add 0.5 mL of HI 93719B-0 Alkali solution and swirl to mix.
Use this solution to rinse 2 cuvettes.
59
Hardness Mg
• Fill both cuvettes up to the 10 mL mark.
10 mL
10 mL
#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.
#1
• Add 1 drop of HI 93719D-0 EGTA solution to the second
cuvette (# 2), replace the cap and invert the cuvette
several times to mix. This is the sample.
• Place the blank (# 1) into the holder and close the lid.
#2
#1
• Press the Zero key. The meter will show “-0.0-” when the meter is zeroed and ready for
measurement.
#2
• Remove the blank (# 1), insert the sample (# 2) into
the instrument, and close the lid.
• Press Read to start the reading. The instrument displays concentration in mg/L of magnesium
hardness, as CaCO3.
60
Hardness Mg
• Press s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of Magnesium (Mg2+).
• Press the Unit key to change the current measurement unit. The results can be converted to French
degrees (°f), German degrees (°dH) and English degrees (°E).
• Press s or t to return to the measurement screen.
Note: This test will detect any magnesium contamination in the beakers, measuring syringes or sample
cells. To test cleanliness, repeat the test multiple times until you obtain consistent results.
SAMPLE DILUTION
This meter is designed to determine hardness typically found in water purification systems. In order to
measure samples with high hardness, follow dilution procedure explained on page 58 (Ca Hardness).
INTERFERENCES
Interference may be caused by excessive amounts of heavy metals.
61
Hardness Mg
HYDRAZINE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0 to 400 µg/L
1 µg/L
±4% of full scale reading at 25 °C
Tungsten lamp with narrow band interference filter @ 420 nm
Adaptation of the ASTM Manual of Water and Environmental Technology, method
D1385-88, p-Dimethylaminobenzaldehyde method. The reaction between hydrazine
and the liquid reagent causes a yellow tint in the sample.
REQUIRED REAGENT
Code
HI 93704-0
Description
Liquid Reagent
Quantity
24 drops
REAGENT SETS
HI 93704-01 Reagents for 100 tests
HI 93704-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Hydrazine method using the procedure described
in the Method Selection section (see page 12).
10 mL
#1
• Fill one cuvette up to the mark with 10 mL of distilled water.
• Place the cap, insert the cuvette # 1 into the holder and
close the lid.
#1
• Press the Blank key to start adjusting the light level. The display will show “Blank done” when the
meter is ready to take a zero measurement.
• Fill a second cuvette with 10 mL of unreacted sample (up to
the mark) and replace the cap.
Hydrazine
62
10 mL
#2
• Add 12 drops of the HI 93704-0 reagent to
each cuvette. Replace the caps and shake
gently to mix (about 30 seconds).
#2
#1
#1
• Place the blank (#1) into the holder and close the lid.
• Press Timer and the display will show the countdown prior to zeroing the blank. The display will show
“-0.0-” when the meter is zeroed and ready for measurement.
#2
• 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.
INTERFERENCES
Interference may be caused by:
Highly colored samples
Highly turbid samples
Aromatic amines
63
Hydrazine
IODINE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.0 to 12.5 mg/L
0.1 mg/L
±0.1 mg/L ±5% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the Standard Methods for the Examination of Water and Wastewater,
18th edition, DPD method. The reaction between iodine and the reagent causes a pink
tint in the sample.
REQUIRED REAGENTS
Code
HI 93718-0
Description
DPD Reagent
Quantity
1 packet
REAGENT SETS
HI 93718-01 Reagents for 100 tests
HI 93718-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Iodine method using the procedure described in
the Method Selection section (see page 12).
10 mL
• Fill the cuvette with 10 mL of unreacted sample (up to
the mark) and replace the cap.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Remove the cap and add the content of one packet of
HI 93718-0 DPD reagent. Replace the cap and shake
gently for about 30 seconds to dissolve most of the reagent.
Iodine
64
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 2 minutes and 30 seconds and press Read. When the timer ends the meter will perform the
reading.
• The instrument displays concentration in mg/L of iodine.
INTERFERENCES
Interference may be caused by: Bromine, Chlorine, Ozone, Oxidized forms of Chromium and Manganese.
In case of water with hardness greater than 500 mg/L CaCO3, shake the sample for approximately
2 minutes after adding the reagent.
In case of water with alkalinity greater than 250 mg/L CaCO3 or acidity greater than 150 mg/L CaCO3,
the color of the sample may develop only partially, or may rapidly fade. To resolve this, neutralize the
sample with diluted HCl or NaOH.
65
Iodine
IRON HIGH RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 5.00 mg/L
0.01 mg/L
±0.04 mg/L ±2% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the EPA Phenantroline method 315B, for natural and treated waters.
The reaction between iron and reagents causes an orange tint in the sample.
REQUIRED REAGENTS
Code
HI 93721-0
Description
Powder Reagent
Quantity
1 packet
REAGENT SETS
HI 93721-01 Reagents for 100 tests
HI 93721-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Iron HR method using the procedure described
in the Method Selection section (see page 12).
10 mL
• Fill the cuvette with 10 mL of unreacted sample (up to the
mark) and replace the cap.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” the meter is zeroed and ready for measurement.
• Remove the cuvette and add the content of one packet
of HI 93721-0 reagent. Replace the cap and shake
until dissolution is complete.
Iron HR
66
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively,
wait for 3 minutes and press Read. When the timer ends the meter will perform the reading.
• The instrument displays concentration in mg/L of iron.
INTERFERENCES
Interference may be caused by:
Molybdate Molybdenum above 50 ppm
Calcium above 10000 ppm (as CaCO3)
Magnesium above 100000 ppm (as CaCO3)
Chloride above 185000 ppm.
67
Iron HR
IRON LOW RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0 to 400 µg/L
1 µg/L
±10 µg/L ±8% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 575 nm
Adaptation of the TPTZ Method. The reaction between iron and the reagent causes a
violet tint in the sample.
REQUIRED REAGENTS
Code
HI 93746-0
Description
TPTZ Reagent
Quantity
2 packets
REAGENT SETS
HI 93746-01 Reagents for 50 tests
HI 93746-03 Reagents for 150 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Iron LR method using the procedure described in
the Method Selection section (see page 12).
25 mL
• Fill one graduated mixing cylinder up to the 25 mL mark
with deionized water.
• Add the content of one packet of HI 93746-0 TPTZ reagent,
close the cylinder and shake vigorously for 30 seconds. This is
the blank.
• Fill a cuvette with 10 mL of the blank up to the mark and
replace the cap.
• Place the cuvette into the holder and close the lid.
Iron LR
68
10 mL
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Remove the cuvette.
25 mL
• 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 reacted sample.
• Fill a cuvette with 10 mL of the reacted sample up to the
mark and replace the cap.
10 mL
• Insert the sample into the instrument.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 30 seconds and press Read. When the timer ends the meter will perform the reading. The
instrument displays concentration in µg/L of iron.
69
Iron LR
INTERFERENCES
Interference may be caused by:
Cadmium above 4.0 mg/L
Chromium3+ above 0.25 mg/L
Chromium6+ above 1.2 mg/L
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.
Iron LR
70
MAGNESIUM
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0 to 150 mg/L
5 mg/L
±5 mg/L ±3% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 466 nm
Adaptation of the Calmagite method.
REQUIRED REAGENTS
Code
Description
HI 93752A-0 Mg Magnesium Buffer Reagent
HI 93752B-0 Mg Magnesium Indicator Reagent
Quantity
1 mL
9 mL
REAGENT SETS
HI 937520-01
Reagents for 50 tests
HI 937520-03
Reagents for 150 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
Note: For sample preparation follow the COLORED OR TURBID SAMPLES
procedure on page 17.
• Select the Magnesium method using the procedure described in the
Method Selection section (see page 12).
• Using one 1 mL syringe add exactly 1.00 mL of HI 93752A-0
Mg Buffer reagent to the cuvette and use the pipette to fill the
cuvette up to the 10 mL mark with the HI 93752B-0 Mg
Indicator reagent.
• Replace the cap and invert several times to mix.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for measurement.
71
Magnesium
• Remove the cuvette.
0.5 mL
of sample
• Using the other 1 mL syringe, add to the cuvette exactly 0.5 mL of sample.
Note: Do not mix up the two syringes!
• Replace the cap and invert several times to mix.
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 15 seconds and press Read. When the timer ends the meter will perform the reading.
• The instrument displays the results in mg/L of magnesium (Mg2+).
INTERFERENCES
Interferences may be caused by:
Acidity (as CaCO3) above 1000 mg/L
Alkalinity (as CaCO3) above 1000 mg/L
Calcium (Ca2+) above 200 mg/L
Iron must be absent
Aluminum must be absent
Copper must be absent
Magnesium
72
MANGANESE HIGH RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.0 to 20.0 mg/L
0.1 mg/L
±0.2 mg/L ±3% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the Standard Methods for the Examination of Water and Wastewater,
18th edition, Periodate method. The reaction between manganese and reagents causes
a pink tint in the sample.
REQUIRED REAGENTS
Code
HI 93709A-0
HI 93709B-0
Description
Quantity
Citrate
1 packet
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 132.
MEASUREMENT PROCEDURE
• Select the Manganese HR method using the procedure described
in the Method Selection section (see page 12).
• Fill the cuvette with 10 mL of unreacted sample (up to the
mark) and replace the cap.
10 mL
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Remove the cuvette.
• Add the content of one packet of HI 93709A-0 Citrate reagent.
Replace the cap and invert to mix with gently movements for
2 minutes.
73
Manganese HR
• Add the content of one packet of HI 93709B-0 Sodium
Periodate reagent. Replace the cap and invert to mix with
gently movements for 2 minutes.
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 1 minute and 30 seconds and press Read. When the timer ends the meter will perform the reading.
The instrument displays the results in mg/L of manganese.
• Press s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of potassium permanganate (KMnO4) and
permanganate (MnO4¯).
• Press s or t to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
Calcium above 700 mg/L
Chloride above 70000 mg/L
Iron above 5 mg/L
Magnesium above 100000 mg/L.
Manganese HR
74
MANGANESE LOW RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0 to 300 µg/L
1 µg/L
±10 µ/L ±3% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 575 nm
Adaptation of the PAN Method. The reaction between manganese and the reagents
causes an orange tint in the sample.
REQUIRED REAGENT
Code
HI 93748A-0
HI 93748B-0
HI 93748C-0
HI 93703-51
Description
Ascorbic acid
Alkaline-cyanide sol.
0.1% PAN indicator
Dispersing Agent
Quantity
2 packets
0.40 mL
2 mL
4-6 drops
REAGENT SETS
HI 93748-01 Reagents for 50 tests
HI 93748-03 Reagents for 150 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Manganese LR method using the procedure described in the Method Selection section (see
page 12).
• Fill one cuvette with 10 mL of deionized water (up to the mark).
10 mL
• Fill a second cuvette with 10 mL of sample (up to the mark).
10 mL
• Add the content of one packet of HI 93748A-0 Ascorbic acid to
each cuvette, replace the caps and shake gently until completely
dissolved.
75
Manganese LR
• Add 0.2 mL of the HI 93748B-0 Alkaline-cyanide reagent
solution to each cuvette, replace the caps and invert gently
to mix for about 30 seconds.
• Add 1 mL of the HI 93748C-0 0.1% PAN indicator
solution to each cuvette, replace the caps and shake
gently.
• Add 3 drops of Dispersing Agent (HI 93703-51) to each
cuvette, replace the caps and invert gently to mix for
about 30 seconds.
• Place the cuvette with the reacted deionized water (blank)
into the holder and close the lid.
• Press Timer and the display will show the countdown prior to zeroing the blank. Alternatively wait for
2 minutes and then press Zero. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
Manganese LR
76
• Insert the second cuvette with the reacted sample into the instrument.
• Press Read to start the reading. The instrument displays the results in µg/L of manganese.
• Press s or t to access the second level functions.
• Press the Chem Frm key to convert the result in µg/L of potassium permanganate (KMnO4) and
permanganate (MnO4¯).
• Press s or t to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
Aluminum above 20 mg/L
Cadmium above 10 mg/L
Calcium above 200 mg/L as CaCO3
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 CaCO3
Nickel above 40 mg/L
Zinc above 15 mg/L.
77
Manganese LR
MOLYBDENUM
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.0 to 40.0 mg/L
0.1 mg/L
±0.3 mg/L ±5% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 420 nm
Adaptation of the mercaptoacetic acid method. The reaction between molybdenum and
the reagents causes a yellow tint in the sample.
REQUIRED REAGENT
Code
HI 93730A-0
HI 93730B-0
HI 93730C-0
Description
Reagent A
Reagent B
Reagent C
Quantity
1 packet
1 packet
1 packet
REAGENT SETS
HI 93730-01 Reagents for 100 tests
HI 93730-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Molybdenum method using the procedure
described in the Method Selection section (see page 12).
• Fill the cuvette with 10 mL of unreacted sample (up to
the mark) and replace the cap.
10 mL
• Place cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
Molybdenum
78
25 mL
• Fill one graduated mixing cylinder up to the 25 mL
mark with the sample.
• Add the content of one packet of HI 93730A-0
molybdenum reagent, close the cylinder and invert it
several times until completely dissolved.
• Add the content of one packet of HI 93730B-0
molybdenum reagent to the cylinder, close and invert
it several times until completely dissolved.
• Add the content of one packet of HI 93730C-0
molybdenum reagent to the cylinder, close and shake
it vigorously.
• Fill an empty cuvette with 10 mL of sample up to the
mark and replace the cap.
10 mL
• Insert the cuvette into the instrument.
79
Molybdenum
• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for five minutes and press Read. When the timer ends the meter will perform the reading. The
instrument displays concentration in mg/L of molybdenum.
• Press s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of molybdate (MoO42¯) and sodium molybdate
(Na2MoO4).
• Press s or t to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
Aluminum above 50 mg/L
Chromium above 1000 mg/L
Copper above 10 mg/L
Iron above 50 mg/L
Nickel above 50 mg/L
Nitrite, as NO2¯
Sulfate above 200 mg/L
Highly buffered samples or with extreme pH may exceed the buffering capacity of the reagents.
Molybdenum
80
NICKEL HIGH RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 7.00 g/L
0.01 g/L
±0.07 ±4% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 575 nm
Adaptation of the photometric method. The reaction between nickel and the reagent
causes a blue tint in the sample.
REQUIRED REAGENTS
Code
HI 93726-0
Description
Powder reagent
Quantity
1 packet
REAGENT SETS
HI 93726-01 Reagents for 100 tests
HI 93726-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Nickel HR method using the procedure described in the Method Selection section (see page 12).
• Fill the cuvette up to the mark with 10 mL of unreacted sample and
replace the cap.
10 mL
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
81
Nickel HR
• Remove the cuvette and add the content of one packet of
HI 93726-0 reagent. Replace the cap and shake gently
until completely dissolved.
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 1 minute and press Read. When the timer ends the meter will perform the reading.
• The instrument displays concentration in g/L of nickel.
INTERFERENCES
Interference may be caused by copper.
Nickel HR
82
NICKEL LOW RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.000 to 1.000 mg/L
0.001 mg/L
±0.010 mg/L ±7% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 575 nm
Adaptation of the PAN method. The reaction between nickel and the reagents causes
an orange tint in the sample.
REQUIRED REAGENTS
Code
HI 93740A-0
HI 93740B-0
HI 93740C-0
HI 93703-51
Description
Phthalate-phosphate
0.3% PAN indicator
EDTA
Dispersing Agent
Quantity
2 packets
2 mL
2 packets
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 132.
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.
• 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
Phthalate-phosphate reagent to each beaker. Cap and
swirl gently until the reagent is dissolved.
Note: If sample contains iron (Fe3+), it is important
that all powder be dissolved completely before
continuing with following step.
• Add 1 mL of HI 93740B-0 0.3% PAN solution to each
beaker, cap and swirl to mix.
83
Nickel LR
• Press Timer and the display will show a countdown prior to adding reagent C or, alternatively, wait
for 15 minutes. Add one packet of HI 93740C-0 EDTA reagent to each beaker, cap and swirl to mix
until completely dissolved.
• Fill one cuvette up to the mark with 10 mL of the blank.
10 mL
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Fill a second cuvette up to the mark with 10 mL of the reacted sample.
10 mL
• Insert the second cuvette into the instrument.
• Press Read to start the reading. The instrument displays the results in mg/L of nickel.
Note: A temperature above 30°C may cause turbidity. In this case, before zeroing and taking readings,
add 2-3 drops of Dispersing Agent (HI 93703-51) to each cuvette and swirl until turbidity is
removed.
Nickel LR
84
INTERFERENCES
Interference may be caused by:
Co2+ must not be present
Fe2+ must not be present
Al3+ above 32 mg/L
Ca2+ above 1000 mg/L (as CaCO3)
Cd2+ above 20 mg/L
Cl¯ above 8000 mg/L
Cr3+ above 20 mg/L
Cr6+ above 40 mg/L
Cu2+ above 15 mg/L
F¯ above 20 mg/L
Fe3+ above 10 mg/L
K+ above 500 mg/L
Mg2+ above 400 mg/L
Mn2+ above 25 mg/L
Mo6+ above 60 mg/L
Na+ above 5000 mg/L
Pb2+ above 20 mg/L
Zn2+ above 30 mg/L
85
Nickel LR
NITRATE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.0 to 30.0 mg/L
0.1 mg/L
±0.5 mg/L ±10% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the cadmium reduction method. The reaction between nitrate and the
reagent causes an amber tint in the sample.
REQUIRED REAGENTS
Code
HI 93728-0
Description
Powder reagent
Quantity
1 packet
REAGENT SETS
HI 93728-01 Reagents for 100 tests
HI 93728-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Nitrate method using the procedure described in the
Method Selection section (see page 12).
• Using the pipette, fill the cuvette with 6 ml of sample, up to half of
its height, and replace the cap.
6 mL
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Remove the cuvette and add the content of one packet of
HI 93728-0 reagent.
Nitrate
86
• Replace the cap and immediately shake vigorously up
and down for exactly 10 seconds. Continue to mix by
inverting the cuvette gently for 50 seconds, while taking
care not to induce air bubbles. Powder will not
completely dissolve. Time and way of shaking could
sensitively affect the measurement.
• Reinsert the cuvette into the instrument, taking care
not to shake it.
• Press Timer and the display will show the countdown
prior to the measurement or, alternatively, wait for
4 minutes and 30 seconds and press Read. When the
timer ends the meter will perform the reading. The
instrument displays the results in mg/L of nitrate-nitrogen.
• Press s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of nitrate (NO3¯).
• Press s or t to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
Ammonia and amines, as urea and primary aliphatic amines
Chloride above 100 ppm
Chlorine above 2 ppm
Copper
Iron(III)
Strong oxidizing and reducing substances
Sulfide must be absent
87
Nitrate
NITRITE HIGH RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0 to 150 mg/L
1 mg/L
±4 mg/L ±4% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 575 nm
Adaptation of the Ferrous Sulfate method. The reaction between nitrite and the
reagent causes a greenish-brown tint in the sample.
REQUIRED REAGENTS
Code
HI 93708-0
Description
Powder reagent
Quantity
1 packet
REAGENT SETS
HI 93708-01 Reagents for 100 tests
HI 93708-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Nitrite HR method using the procedure described in the
Method Selection section (see page 12).
10 mL
• Fill the cuvette up to the mark with 10 mL of unreacted sample and
replace the cap.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Remove the cuvette.
Nitrite HR
88
• Add the content of one packet of HI 93708-0 reagent.
Replace the cap and shake gently until completely
dissolved.
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 10 minutes and press Read. When the timer ends the meter will perform the reading. The
instrument displays concentration in mg/L of nitrite.
• Press s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of nitrogen-nitrite (NO2¯-N) and sodium nitrite
(NaNO2).
• Press s or t to return to the measurement screen.
89
Nitrite HR
NITRITE LOW RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 1.15 mg/L
0.01 mg/L
±0.06 mg/L ±4% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the EPA Diazotization method 354.1. The reaction between nitrite and
the reagent causes a pink tint in the sample.
REQUIRED REAGENTS
Code
HI 93707-0
Description
Powder reagent
Quantity
1 packet
REAGENT SETS
HI 93707-01 Reagents for 100 tests
HI 93707-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Nitrite LR method using the procedure described in
the Method Selection section (see page 12).
10 mL
• Fill the cuvette up to the mark with 10 mL of unreacted
sample (up to the mark) and replace the cap.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Remove the cuvette.
• Add the content of one packet of HI 93707-0 reagent.
Replace the cap and shake gently for about 15 seconds.
Nitrite LR
90
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 6 minutes and press Read. When the timer ends the meter will perform the reading. The instrument
displays concentration in mg/L of nitrite.
• Press s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of nitrogen-nitrite (NO2¯-N) and sodium nitrite
(NaNO2).
• Press s or t to return to the measurement screen.
INTERFERENCES
Interference may be caused by the following ions:
ferrous, ferric, cupric, mercurous, silver, antimonious, bismuth, auric, lead, metavanadate and chloroplatinate.
Strongly reducing and oxidizing reagents.
High levels of nitrate (above 100 mg/L) could yield falsely high readings due to a minute amount of
reduction to nitrite that could occur at these levels.
91
Nitrite LR
DISSOLVED OXYGEN
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.0 to 10.0 mg/L
0.1 mg/L
±0.4 mg/L ±3% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 420 nm
Adaptation of the Standard Methods for the Examination of Water and Wastewater,
18th edition, Azide modified Winkler method. The reaction between dissolved oxygen
and the reagents causes a yellow tint in the sample.
REQUIRED REAGENTS
Code
HI 93732A-0
HI 93732B-0
HI 93732C-0
Description
Reagent A
Reagent B
Reagent C
Quantity
5 drops
5 drops
10 drops
REAGENT SET
HI 93732-01 Reagents for 100 tests
HI 93732-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Dissolved Oxygen method using the procedure described in
the Method Selection section (see page 12).
• Fill one 60 mL glass bottle completely with the unreacted sample.
• Replace the cap and ensure that a small part of the sample spills
over.
• Remove the cap and add 5 drops of HI 93732A-0 and 5 drops of
HI 93732B-0.
• Add more sample, to fill the bottle completely. Replace the cap
again and ensure that a part of the sample spills over. This is to
make sure that no air bubbles have been trapped inside, which
could alter the reading.
• Invert several times the bottle. The sample becomes orange-yellow
and a flocculent agent will appear.
Dissolved Oxygen
92
• Let the sample stand and the flocculent agent will start to settle.
• After approximately 2 minutes, when the upper half of the bottle becomes limpid, add
10 drops of HI 93732C-0.
• Replace the cap and invert the bottle until the settled flocculent dissolves completely.
The sample is ready for measurement when it is yellow and completely limpid.
• Fill the cuvette up to the mark with 10 mL of the unreacted
(original) sample, and replace the cap. This is the blank.
10 mL
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the
meter is zeroed and ready for measurement.
• Remove the cuvette.
• Fill another cuvette up to the mark with 10 mL of the reacted
sample and replace the cap.
• Reinsert the cuvette into the instrument.
• Press Read to start the reading. The instrument will display the results in mg/L of dissolved oxygen.
INTERFERENCES
Interferences may be caused by reducing and oxidizing materials.
93
Dissolved Oxygen
OXYGEN DEMAND, CHEMICAL HIGH RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0 to 15000 mg/L COD
10 mg/L
±150 mg/L or ±3 % of reading @ 25 °C, whichever is greater
Tungsten lamp with narrow band interference filter @ 610 nm
Adaptation of the USEPA 410.4 approved method for the COD determination on surface
waters and wastewaters. Oxidizable organic compounds reduce the dichromate ion
(orange) to the chromic ion (green). The amount of chromic ion formed is determined.
REQUIRED REAGENTS
Description
Reagent Vial
Deionized Water
Q.ty/test
1 vial
0.2 mL
Q.ty/set
25 vials
optional
Note: Store the unused vials in their container in a cool and dark place.
REAGENT SET
HI 93754C-25 Reagents for up to 25 tests
REQUIRED ACCESSORIES
HI 839800-01 Hanna reactor (115 VAC)
HI 839800-02 Hanna reactor (230 VAC)
HI 740216 Test tube cooling rack (25 holes)
HI 740217 Laboratory bench safety shield
For other accessories see page 132.
MEASUREMENT PROCEDURE
Before using the reagent kit carefully read all the instructions and the Material Safety Data
Sheet (MSDS). Pay particular attention to all warnings, cautions and notes. Failure to do so
may result in serious injury to the operator.
Reagent Blank Correction: This method requires a reagent blank correction. A single blank vial may be used
more than once. The blank vial is stable for several months (room temperature). For most accurate measurement,
run a blank for each set of measurements and always use the same lot of reagents for blank and samples.
94
• Choose a homogeneous sample. Samples containing settleable solids need to be homogenized with a
blender.
• Preheat the Hanna Reactor HI 839800 to 150 °C (302 °F). For correct use of the reactor follow Reactor
Instruction Manual.
Use of the optional HI 740217 safety shield is strongly recommended.
DO NOT USE AN OVEN OR MICROWAVE samples may leak and generate a corrosive and possibly explosive
atmosphere.
• Remove the cap from two Reagent Vials.
• Add exactly 0.2 mL of sample to one vial (sample vial), and 0.2 mL of deionized water to the other
vial (blank vial), while keeping the vials at a 45-degree angle. Replace the cap tightly and mix by
inverting each vial a couple of times.
Sample
Sample
D.I. Water
Blank
Sample
Blank
Warning: the vials will become very hot during mixing, be careful when handling them.
• Insert the vials into the reactor and heat them for 2 hours at 150 °C.
• At the end of the digestion period switch off the reactor. Wait for twenty
minutes to allow the vials to cool to about 120 °C.
• Invert each vial several times while still warm, then place them in the
test tube rack.
Warning: the vials are still hot, be careful when handling them.
• Leave the vials in the tube rack to cool to room temperature. Do not shake
or invert them anymore otherwise the samples may become turbid.
95
Sample
Blank
• Select the Oxygen Demand, Chemical
HR (COD) method following one of the
procedures described in the Method
Selection section (see page 12).
• Place the COD vial adapter in the
cuvette holder and ensure that the
adapter is well fit inside.
• Place the blank vial into the holder and push it completely down.
• Press the Zero key and the instrument will perform a zero sequence. If the zero sequence was
successfully done, the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the blank vial.
• Place the sample vial into the holder and push it completely down.
• Press Read and the instrument will perform the reading.
• The instrument directly displays concentration in mg/L of oxygen demand.
INTERFERENCES
Interference may be caused by:
Chloride (Cl¯) above 20000 mg/L.
Samples with higher chloride concentration should be diluted.
96
OXYGEN DEMAND, CHEMICAL MEDIUM RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0 to 1500 mg/L COD
1 mg/L
±15 mg/L or ±4 % of reading @ 25 °C, whichever is greater
Tungsten lamp with narrow band interference filter @ 610 nm
Adaptation of the USEPA 410.4 approved method for the COD determination on
surface waters and wastewaters. Oxidizable organic compounds reduce the dichromate
ion (orange) to the chromic ion (green). The amount of chromic ion formed is
determined.
REQUIRED REAGENTS
Description
Reagent Vial
Deionized Water
Q.ty/test
1 vial
2.0 mL
Q.ty/set
25 vials
optional
Note: Store the unused vials in their container in a cool and dark place.
REAGENT SET
HI 93754B-25 Reagents for up to 25 tests
REQUIRED ACCESSORIES
HI 839800-01 Hanna reactor (115 VAC)
HI 839800-02 Hanna reactor (230 VAC)
HI 740216 Test tube cooling rack (25 holes)
HI 740217 Laboratory bench safety shield
For other accessories see page 132.
MEASUREMENT PROCEDURE
Before using the reagent kit carefully read all the instructions and the Manual Safety Data
Sheet (MSDS). Pay particular attention to all warnings, cautions and notes. Failure to do so
may result in serious injury to the operator.
Reagent Blank Correction: This method requires a reagent blank correction. A single blank vial may be used
more than once. The blank vial is stable for several months (room temperature). For most accurate measurement,
run a blank for each set of measurements and always use the same lot of reagents for blank and samples.
97
• Choose a homogeneous sample. Samples containing settleable solids need to be homogenized with a
blender.
• Preheat the Hanna Reactor HI 839800 to 150 °C (302 °F). For correct use of the reactor follow Reactor
Instruction Manual.
Use of the optional HI 740217 safety shield is strongly recommended.
DO NOT USE AN OVEN OR MICROWAVE samples may leak and generate a corrosive and possibly explosive
atmosphere.
• Remove the cap from two Reagent Vials.
• Add exactly 2.0 mL of sample to one vial (sample vial), and 2.0 mL of deionized water to the other
vial (blank vial), while keeping the vials at a 45-degree angle. Replace the cap tightly and mix by
inverting each vial a couple of times.
Sample
D.I. Water
Sample
Sample
Blank
Blank
Warning: the vials will become very hot during mixing, be careful when handling them.
• Insert the vials into the reactor and heat them for 2 hours at 150 °C.
• At the end of the digestion period switch off the reactor. Wait for twenty
minutes to allow the vials to cool to about 120 °C.
• Invert each vial several times while still warm, then place them in a
test tube rack.
Warning: the vials are still hot, be careful when handling them.
Sample
• Leave the vials in the tube rack to cool to room temperature. Do not shake
or invert them, the samples may become turbid.
98
Blank
• Select the Oxygen Demand, Chemical
MR (COD) method following one of the
procedures described in the Method
Selection section (see page 12).
• Place the COD vial adapter in the
cuvette holder and ensure that the
adapter is well fit inside.
• Place the blank vial into the holder and push it completely down.
• Press the Zero key and the instrument will perform a zero sequence. If the zero sequence was
successfully done, the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the blank vial.
• Place the sample vial into the holder and push it completely down.
• Press Read and the instrument will perform the reading.
• The instrument displays concentration in mg/L of oxygen demand on the LCD.
INTERFERENCES
Interference may be caused by:
Chloride (Cl¯) above 2000 mg/L.
Samples with higher chloride concentration should be diluted.
99
COD MR
OXYGEN DEMAND, CHEMICAL LOW RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0 to 150 mg/L COD
1 mg/L
±5 mg/L or ±5 % of reading @ 25 °C, whichever is greater
Tungsten lamp with narrow band interference filter @ 420 nm
Adaptation of the USEPA 410.4 approved method for the COD determination on surface
waters and wastewaters. Oxidizable organic compounds reduce the dichromate ion
(orange) to the chromic ion (green). The amount of remaining dichromate is determined.
REQUIRED REAGENTS
Description
Reagent Vial
Deionized Water
Q.ty/test
1 vial
2.0 mL
Q.ty/set
25 vials
optional
Note: Store the unused vials in their container in a cool and dark place.
REAGENT SET
HI 93754A-25 Reagents for up to 25 tests
REQUIRED ACCESSORIES
HI 839800-01 Hanna reactor (115 VAC)
HI 839800-02 Hanna reactor (230 VAC)
HI 740216 Test tube cooling rack (25 holes)
HI 740217 Laboratory bench safety shield
For other accessories see page 132.
MEASUREMENT PROCEDURE
Before using the reagent kit carefully read all the instructions and the Material Safety Data
Sheet (MSDS). Pay particular attention to all warnings, cautions and notes. Failure to do so
may result in serious injury to the operator.
Reagent Blank Correction: This method requires a reagent blank correction. A single blank vial may be used
more than once. The blank vial is stable for several months (room temperature). For most accurate measurement,
run a blank for each set of measurements and always use the same lot of reagents for blank and samples.
COD LR
100
• Choose a homogeneous sample. Samples containing settleable solids need to be homogenized with a
blender.
• Preheat the Hanna Reactor HI 839800 to 150 °C (302 °F). For correct use of the reactor follow Reactor
Instruction Manual.
The optional HI 740217 safety shield is strongly recommended.
DO NOT USE AN OVEN OR MICROWAVE samples may leak and generate a corrosive and possibly explosive
atmosphere.
• Remove the cap from two Reagent Vials.
• Add exactly 2.0 mL of sample to one vial (sample vial), and 2.0 mL of deionized water to the other
vial (blank vial), while keeping the vials at a 45-degree angle. Replace the cap tightly and mix by
inverting each vial a couple of times.
D.I. Water
Sample
Sample
Sample
Blank
Blank
Warning: the vials will become hot during mixing, be careful when handling them.
• Insert the vials into the reactor and heat them for 2 hours at 150 °C.
• At the end of the digestion period switch off the reactor. Wait for twenty
minutes to allow the vials to cool to about 120 °C.
• Invert each vial several times while still warm, then place them in the
test tube rack.
Sample
Blank
Warning: the vials are still hot, be careful when handling them.
• Leave the vials in the tube rack to cool to room temperature. Do not shake
or invert them, the samples may become turbid.
101
COD LR
• Select Oxygen Demand, Chemical LR
(COD) method following one of the
procedures described in the Method
Selection section (see page 12).
• Place the COD vial adapter in the
cuvette holder and ensure that the
adapter is well fit inside.
• Place the blank vial into the holder and push it completely down.
• Press the Zero key and the instrument will perform a zero sequence. If the zero sequence was
successfully done, the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the blank vial.
• Place the sample vial into the holder and push it completely down.
• Press Read and the instrument will perform the reading.
• The instrument displays concentration in mg/L of oxygen demand.
INTERFERENCES
Interference may be caused by:
Chloride (Cl¯) above 2000 mg/L.
Samples with higher chloride concentration should be diluted.
COD LR
102
OZONE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 2.00 mg/L
0.01 mg/L
±0.02 mg/L ±3% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Colorimetric DPD Method. The reaction between ozone and the DPD reagent causes a
pink tint in the sample.
REQUIRED REAGENTS
Code
Description
Quantity/test
HI 93757-0
DPD Powder Reagent
1 packet
HI 93703-52-0 Glycine Powder (Optional Reagent) 1 packet
REAGENT SETS
HI 93757-01
Reagents for 100 tests
HI 93757-03
Reagents for 300 tests
HI 93703-52
Glycine Powder, Optional Reagent for 100 tests
For other accessories see page 132.
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: value A.
• On a fresh sample perform the Additional Measurement Procedure and take note of the reading: value B.
• Subtract reading B from reading A to obtain the ozone concentration in mg/L:
mg/L (O3) = value A – value B.
STANDARD MEASUREMENT PROCEDURE
• Select the Ozone method using the procedure described
in the Method Selection section (see page 12).
10 mL
• Fill the cuvette with 10 mL of unreacted sample, up to
the mark, and replace the cap.
• Place the cuvette into the holder and close the lid.
103
Ozone
• Press the Zero key. The display will show “-0.0-” the meter is zeroed and ready for measurement.
• Remove the cuvette.
• Add the content of one packet of HI 93757-0
Ozone Reagent. Replace the cap and shake gently
for 20 seconds.
• Replace the cuvette into the holder and close the lid.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively,
wait for 2 minutes and press Read. When the timer ends the meter will perform the reading.
• The instrument displays concentration in mg/L of ozone (chlorine free samples only).
ADDITIONAL MEASUREMENT PROCEDURE
For samples containing chlorine
• Select the Ozone method using the procedure described
in the Method Selection section (see page 12).
• Fill the cuvette with 10 mL of unreacted sample, up to
the mark, and replace the cap.
• Place the cuvette into the holder and close the lid.
Ozone
104
10 mL
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Remove the cuvette.
• Add the content of one packet of the optional reagent
HI 93703-52-0 Glycine Powder. Replace the cap and
shake gently until completely dissolved.
• Add the content of one packet of HI 93757-0 Ozone
Reagent. Replace the cap and shake gently for 20 seconds.
• Replace the cuvette into the holder and close the lid.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively,
wait for 2 minutes and press Read. When the timer ends the meter will perform the reading.
• The instrument displays a concentration value referring to chlorine interference. Subtract this value from
the reading from the Standard Measurement Procedure: this will be the concentration in mg/L of
ozone in the sample.
INTERFERENCES
Interference may be caused by: Bromine, Chlorine Dioxide, Iodine.
Alkalinity above 250 mg/L CaCO3 will not reliably develop the full amount of color or it may rapidly fade.
To resolve this, neutralize the sample with diluted HCl.
In case of water with hardness greater than 500 mg/L CaCO3, shake the sample for approximately
2 minutes after adding the powder reagent.
105
Ozone
pH
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
6.5 to 8.5 pH
0.1 pH
±0.1 pH at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the Phenol Red method. The reaction with the reagent causes a yellow
to red tint in the sample.
REQUIRED REAGENTS
Code
HI 93710-0
Description
Phenol Red Indicator
Quantity
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 132.
MEASUREMENT PROCEDURE
• Select the pH method using the procedure described in the
Method Selection section (see page 12).
• Fill the cuvette with 10 mL of unreacted sample (up to the
mark) and replace the cap.
10 mL
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
pH
106
• Remove the cuvette and add 5 drops of HI 93710-0 Phenol
Red Indicator. Replace the cap and mix the solution.
• Reinsert the cuvette into the instrument.
• Press the Read key to start the reading. The instrument displays the pH value.
107
pH
PHOSPHATE HIGH RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.0 to 30.0 mg/L
0.1 mg/L
±1 mg/L ±4% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the Standard Methods for the Examination of Water and Wastewater,
18th edition, Amino Acid method. The reaction between phosphate and reagents
causes a blue tint in the sample.
REQUIRED REAGENTS
Code
HI 93717A-0
HI 93717B-0
Description
Molybdate
Reagent B
Quantity
10 drops
1 packet
REAGENT SETS
HI 93717-01 Reagents for 100 tests
HI 93717-03 Reagents for 300 tests
For other accessories see page 132.
10 mL
MEASUREMENT PROCEDURE
• Select the Phosphate HR method using the procedure described
in the Method Selection section (see page 12).
• Fill the cuvette with 10 mL of unreacted sample (up to the mark)
and replace the cap.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Remove the cuvette.
• Add 10 drops of HI 93717A-0 Molybdate reagent.
Phosphate HR
108
• 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 (PO43¯).
• Press s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of phosphorus (P) and phosphorus pentoxide
(P2O5).
• Press s or t to return to the measurement screen.
INTERFERENCES
Sulfide
Chloride above 150000 mg/L
Calcium above 10000 mg/L as CaCO3
Magnesium above 40000 mg/L as CaCO3
Ferrous iron above 100 mg/L
109
Phosphate HR
PHOSPHATE LOW RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 2.50 mg/L
0.01 mg/L
±0.04 mg/L ±4% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 610 nm
Adaptation of the Ascorbic Acid method. The reaction between phosphate and the
reagent causes a blue tint in the sample.
REQUIRED REAGENTS
Code
HI 93713-0
Description
Powder reagent
Quantity
1 packet
REAGENT SETS
HI 93713-01 Reagents for 100 tests
HI 93713-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Phosphate LR method using the procedure
described in the Method Selection section (see page 12).
10 mL
• 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 the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Remove the cuvette and add the content of one packet of
HI 93713-0 reagent. Replace the cap and shake gently
(for about 2 minutes) until the powder is completely
dissolved.
Phosphate LR
110
• 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 (PO43¯).
• Press s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of phosphorus (P) and phosphorus pentoxide
(P2O5).
• Press s or t to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
Iron above 50 mg/L
Silica above 50 mg/L
Silicate above 10 mg/L
Copper above 10 mg/L
Hydrogen sulfide, arsenate, turbid sample and highly buffered samples also interfere.
111
Phosphate LR
PHOSPHORUS
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.0 to 15.0 mg/L
0.1 mg/L
±0.3 mg/L ±4% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the Standard Methods for the Examination of Water and Wastewater,
18th edition, Amino Acid method. The reaction between phosphate and reagents
causes a blue tint in the sample.
REQUIRED REAGENTS
Code
HI 93706A-0
HI 93706B-0
Description
Molybdate
Amino Acid Powder
Quantity
10 drops
1 packet
REAGENT SETS
HI 93706-01 Reagents for 100 tests
HI 93706-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Phosphorus method using the procedure
described in the Method Selection section (see page 12).
10 mL
• Fill the cuvette with 10 mL of unreacted sample (up to
the mark) and replace the cap.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Remove the cuvette.
• Add 10 drops of HI 93706A-0 Molybdate reagent.
Phosphorus
112
• 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 s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of phosphate (PO43¯) and phosphorus pentoxide
(P2O5).
• Press s or t to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
Sulfide
Chloride above 150000 mg/L
Calcium above 10000 mg/L as CaCO3
Magnesium above 40000 mg/L as CaCO3
Ferrous iron above 100 mg/L
113
Phosphorus
POTASSIUM HIGH RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
20 to 200 mg/L
5 mg/L
±30 mg/L ±7% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 610 nm
Adaptation of the Turbidimetric Tetraphenylborate method. The reaction between
Potassium and reagents causes turbidity in the sample.
REQUIRED REAGENTS
Code
HI 93750A-0
HI 93750B-0
Description
Potassium Reagent
Powder Reagent
Quantity
6 drops
1 packet
REAGENT SETS
HI 93750-01 Reagents for 100 tests
HI 93750-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
Note: For sample preparation follow the CONCENTRATED SAMPLES procedure at page 18.
• Select the Potassium HR method using the procedure
described in the Method Selection section (see page 12).
10 mL
• 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.
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
Potassium HR
114
• 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 s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of potassium oxide (K2O)
• Press s or t to return to the measurement screen.
• For ULTRA HIGH RANGE samples: follow the procedure described at page 115.
INTERFERENCES
Interferences may be caused by:
Ammonium above 10 ppm
Calcium above 10000 ppm as CaCO3
Chloride above 12000 ppm
Magnesium above 8000 ppm as CaCO3
Sodium above 8000 ppm
POTASSIUM ULTRA HIGH RANGE
For samples containing more than 200 ppm of Potassium: follow the sample preparation procedure
described at page 18 for CONCENTRATED SAMPLES. Then add to the graduated cylinder 20 mL of the
prepared sample (for HR) and fill the cylinder with demineralized water from the Demineralizer Bottle up
to the 100 mL mark.
Follow the MEASUREMENT PROCEDURE at page 114. Read the result in mg/L of potassium on the display
and multiply the reading by 5 to obtain the actual concentration of Potassium.
115
Potassium HR
POTASSIUM MEDIUM RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
10 to 100 mg/L
2.5 mg/L
±15 mg/L ±7% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 610 nm
Adaptation of the Turbidimetric Tetraphenylborate method. The reaction between
Potassium and reagents causes turbidity in the sample.
REQUIRED REAGENTS
Code
HI 93750A-0
HI 93750B-0
Description
Potassium Reagent
Powder Reagent
Quantity
6 drops
1 packet
REAGENT SETS
HI 93750-01 Reagents for 100 tests
HI 93750-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
Note: For sample preparation follow the CONCENTRATED SAMPLES procedure at page 18.
• Select the Potassium MR method using the procedure
described in the Method Selection section (see page 12).
10 mL
• Fill the cuvette with 10 mL of sample, up to the mark.
• Add six drops of HI 93750A-0, replace the cap and swirl
the solution.
• Place the cuvette into the holder and close the lid.
Potassium MR
116
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for measurement.
• Remove the cuvette and add the content of one packet of
HI 93750B-0 reagent. Replace the cap and gently mix for
one minute by slowly turning the cuvette upside down.
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the
measurement or, alternatively, wait for 2 minutes and press Read.
When the timer ends the meter will perform the reading. The
instrument displays the results in mg/L (ppm) of potassium (K).
• Press s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of potassium oxide (K2O).
• Press s or t to return to the measurement screen.
INTERFERENCES
Interferences may be caused by:
Ammonium above 10 ppm
Calcium above 10000 ppm as CaCO3
Chloride above 12000 ppm
Magnesium above 8000 ppm as CaCO3
Sodium above 8000 ppm
117
Potassium MR
POTASSIUM LOW RANGE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.0 to 20.0 mg/L
0.5 mg/L
±3.0 mg/L ±7% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 610 nm
Adaptation of the Turbidimetric Tetraphenylborate method. The reaction between
Potassium and reagents causes turbidity in the sample.
REQUIRED REAGENTS
Code
HI 93750A-0
HI 93750B-0
Description
Potassium Reagent
Powder Reagent
Quantity
6 drops
1 packet
REAGENT SETS
HI 93750-01 Reagents for 100 tests
HI 93750-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
Note: For sample preparation follow the COLORED OR TURBID SAMPLES procedure at page 17.
• Select the Potassium LR method using the procedure
described in the Method Selection section (see page 12).
• Fill the cuvette with 10 mL of sample, up to the mark.
• Add 6 drops of HI 93750A-0 Potassium Reagent, replace
the cap and swirl the solution.
• Place the cuvette into the holder and close the lid.
Potassium LR
118
10 mL
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for measurement.
• Remove the cuvette and add the content of one packet of
HI 93750B-0 reagent. Replace the cap and gently mix for
one minute by slowly turning the cuvette upside down.
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the
measurement or, alternatively, wait for 2 minutes and press Read.
When the timer ends the meter will perform the reading. The
instrument displays the results in mg/L (ppm) of potassium (K).
• Press s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of potassium oxide (K2O).
• Press s or t to return to the measurement screen.
INTERFERENCES
Interferences may be caused by:
Ammonium above 10 ppm
Calcium above 10000 ppm as CaCO3
Chloride above 12000 ppm
Magnesium above 8000 ppm as CaCO3
Sodium above 8000 ppm
119
Potassium LR
SILICA
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 2.00 mg/L
0.01 mg/L
±0.03 mg/L ±3% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 610 nm
Adaptation of the ASTM Manual of Water and Environmental Technology, D859,
Heteropoly Blue method. The reaction between silica and reagents causes a blue tint in
the sample.
REQUIRED REAGENTS
Code
HI 93705A-0
HI 93705B-0
HI 93705C-0
Description
Molybdate
Citric acid
Amino acid
Quantity
6 drops
1 packet
1 packet
REAGENT SETS
HI 93705-01 Reagents for 100 tests
HI 93705-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Silica method using the procedure described in
the Method Selection section (see page 12).
• Fill the cuvette with 10 mL of unreacted sample (up to the
mark).
• Add 6 drops of HI 93705A-0 Molybdate reagent. Replace
the cap and swirl the solution.
• Wait for 4 minutes, add the content of one packet of
HI 93705B-0 Citric acid reagent and shake until it is
completely dissolved.
• Wait for 1 minute. This is the blank.
• Place the cuvette into the holder and close the lid.
Silica
120
10 mL
• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for measurement.
• Remove the cuvette and add the content of one packet of
HI 93705C-0 Amino acid reagent and shake until it is
completely dissolved.
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown
prior to the measurement. Alternatively, wait for exactly
3 minutes and press Read. When the timer ends the
meter will perform the reading. The instrument displays
concentration in mg/L of silica (SiO2).
• Press s or t to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of Silicon (Si).
• Press s or t to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
Phosphate above 60 mg/L (causes a 2% reduction in reading)
Phosphate above 75 mg/L (causes an 11% reduction in reading)
Sulfide and high concentration of iron
Eliminate color and turbidity interferences by zeroing the meter with the original water sample.
121
Silica
SILVER
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.000 to 1.000 mg/L
0.005 mg/L
±0.020 mg/L ±5% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 575 nm.
Adaptation of the PAN method. The reaction between silver and reagents causes an
orange tint in the sample.
REQUIRED REAGENTS
Code
HI 93737A-0
HI 93737B-0
HI 93737C-0
HI 93737D-0
HI 93703-51
Description
Buffer Reagent A
Buffer Reagent B
Indicator Reagent C
Fixing Reagent D
Dispersing Agent
Quantity
1 mL
1 mL
2 mL
2 mL
4-6 drops
REAGENT SETS
HI 93737-01 Reagents for 50 tests
HI 93737-03 Reagents for 150 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Silver method using the procedure described in the Method Selection section (see page 12).
Note: For best results perform your tests between 20-24°C.
• Fill two graduated beakers with 25 mL of sample.
#1
#2
• Add 1.0 mL of HI 93737A-0 Buffer reagent to one beaker
(the blank) and swirl gently to mix.
#1
Silver
122
• Add exactly 1.0 mL of HI 93737B-0 Buffer reagent to the second
beaker (the sample) and swirl gently to mix. Press Timer and the
display will show the countdown prior to adding reagent C or,
alternatively, wait for 2 minutes.
#2
• Then add exactly 1.0 mL of HI 93737C-0 Indicator reagent to
each beaker and swirl. Press Timer or, alternatively, wait for
2 minutes.
#1
#2
#1
#2
• Then, in both cases, add 1.0 mL of HI 93737D-0 Fixing reagent
to each beaker and swirl. Press Timer or, alternatively, wait for
2 minutes.
10 mL
#1
• Fill one cuvette up to the mark with 10 mL of the blank.
• Add 3 drops of Dispersing Agent (HI 93703-51), replace
the cap and invert gently to mix for about 10 seconds.
#1
• Place the cuvette into the holder and close the lid.
123
Silver
• Press the 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
• Add 3 drops of Dispersing Agent (HI 93703-51),
replace the cap and invert gently to mix for about
10 seconds.
#2
• Insert the second cuvette into the instrument.
• Press Read to start the reading. The instrument displays the results in mg/L of silver.
INTERFERENCES
Interference may be caused by:
Al3+ above 30 mg/L
Ca2+ above 1000 mg/L as CaCO3
Cd2+ above 20 mg/L
Cl¯ above 8000 mg/L
Co2+ above 1.5 mg/L
Cr3+ above 20 mg/L
Cr6+ above 40 mg/L
Cu2+ above 15 mg/L
F¯ above 20 mg/L
Silver
Fe2+ above 1.5 mg/L
Fe3+ above 10 mg/L
K+ above 500 mg/L
Mn2+ above 25 mg/L
Mg2+ above 1000 mg/L as CaCO3
Na+ above 5000 mg/L
Ni2+ above 1.5 mg/L
Pb2+ above 20 mg/L
Zn2+ above 30 mg/L
124
SULFATE
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0 to 100 mg/L
5 mg/L
±5 mg/L ±3% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 466 nm
Sulfate is precipitated with barium chloride crystals. Light absorbance of the suspension
is measured.
REQUIRED REAGENTS
Code
HI 93751-0
Description
Indicator reagent
Quantity
1 packet
REAGENT SETS
HI 93751-01 Reagents for 100 tests
HI 93751-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
Note: For sample preparation follow the COLORED OR TURBID SAMPLES procedure on page 17.
• Select the Sulfate method using the procedure described
in the Method Selection section (see page 12).
10 mL
• 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 the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for
measurement.
• Remove the cuvette.
125
Sulfate
• Add the content of one packet of HI 93751-0
Indicator reagent.
• Replace the cap and invert gently to mix for
1 minute (about 30 inversions).
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 5 minutes and press Read. When the timer ends the meter will perform the reading.
• The instrument displays concentration in mg/L of Sulfate (SO42¯).
INTERFERENCES
Interferences may be caused by:
Calcium (as CaCO3) above 20000 mg/L
Chloride (as Cl¯) above 40000 mg/L
Magnesium (as MgCO3) above 10000 mg/L
Silica (as SiO2) above 500 mg/L
Color or suspended matter in large amounts will interfere: suspended matter should be removed by previous
filtration.
Organic matter in large amounts may impede the precipitation of barium sulfate.
Sulfate
126
ZINC
SPECIFICATIONS
Range
Resolution
Accuracy
Light Source
Method
0.00 to 3.00 mg/L
0.01 mg/L
±0.03 mg/L ±3% of reading at 25 °C
Tungsten lamp with narrow band interference filter @ 575 nm
Adaptation of the Standard Methods for the Examination of Water and Wastewater,
18th edition, Zincon method. The reaction between zinc and the reagents causes an
orange to a dark violet tint in the sample.
REQUIRED REAGENT
Code
HI 93731A-0
HI 93731B-0
Description
Zinc Reagent
Cyclohexanone
Quantity
1 packet
0.5 mL
REAGENT SETS
HI 93731-01 Reagents for 100 tests
HI 93731-03 Reagents for 300 tests
For other accessories see page 132.
MEASUREMENT PROCEDURE
• Select the Zinc method using the procedure described in
the Method Selection section (see page 12).
• Fill one graduated mixing cylinder up to the 20 mL mark
with the sample.
20 mL
• Add the content of one packet of HI 93731A-0 Zinc
reagent, close the cylinder and invert several times to mix
until completely dissolved.
• Fill one cuvette with 10 mL of the reacted sample up to
the mark.
127
10 mL
Zinc
• Place the cap and insert the cuvette into the instrument
and close the lid.
• Press the Zero key. The display will show “-0.0-” when
the meter is zeroed and ready for measurement.
• 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
128
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.
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.
129
DATA MANAGEMENT
The analyzed data can be managed using Hanna’s product HI92000, Windows ® Compatible Software.
Windows® is registered Trademark of "Microsoft Co."
130
STANDARD METHODS
Description
Aluminum
Alkalinity
Ammonia MR
Ammonia LR
Bromine
Calcium
Chlorine, Free
Chlorine, Total
Chlorine Dioxide
Chromium VI HR
Chromium VI LR
Color of Water
Copper HR
Copper LR
Cyanuric Acid
Fluoride
Calcium Hardness
Magnesium Hardness
Hydrazine
Iodine
Iron HR
Iron LR
Magnesium
Manganese HR
Manganese LR
Molybdenum
Nickel HR
Nickel LR
Nitrate
Nitrite HR
Nitrite LR
Oxygen, Dissolved
COD HR
COD MR
COD LR
Ozone
pH
Phosphate HR
Phosphate LR
Range
0.00 to 1.00 mg/L
0 to 500 mg/L
0.00 to 10.00 mg/L
0.00 to 3.00 mg/L
0.00 to 8.00 mg/L
0 to 400 mg/L
0.00 to 2.50 mg/L
0.00 to 3.50 mg/L
0.00 to 2.00 mg/L
0 to 1000 µg/L
0 to 300 µg/L
0 to 500 PCU
0.00 to 5.00 mg/L
0 to 1000 µg/L
0 to 80 mg/L
0.00 to 2.00 mg/L
0.00 to 2.70 mg/L
0.00 to 2.00 mg/L
0 to 400 µg/L
0.0 to 12.5 mg/L
0.00 to 5.00 mg/L
0 to 400 µg/L
0 to 150 mg/L
0.0 to 20.0 mg/L
0 to 300 µg/L
0.0 to 40.0 mg/L
0.00 to 7.00 g/L
0.000 to 1.000 mg/L
0.0 to 30.0 mg/L
0 to 150 mg/L
0.00 to 1.15 mg/L
0.0 to 10.0 mg/L
0 to 15000 mg/L
0 to 1500 mg/L
0 to 150 mg/L
0.00 to 2.00 mg/L
6.5 to 8.5 pH
0.0 to 30.0 mg/L
0.00 to 2.50 mg/L
131
Method
Aluminon
Colorimetric
Nessler
Nessler
DPD
Oxalate
DPD
DPD
Chlorophenol Red
Diphenylcarbohydrazide
Diphenylcarbohydrazide
Colorimetric Platinum Cobalt
Bicinchoninate
Bicinchoninate
Turbidimetric
SPADNS
Colorimetric
Colorimetric
p-Dimethylaminobenzaldehyde
DPD
Phenantroline
TPTZ
Calmagite
Periodate Oxidation
PAN
Mercaptoacetic Acid
Photometric
PAN
Cadmium Reduction
Ferrous Sulfate
Diazotization
Winkler
Dichromate, Mercuric Sulfate
Dichromate, Mercuric Sulfate
Dichromate, Mercuric Sulfate
DPD
Phenol Red
Amino Acid
Ascorbic Acid
Phosphorus
Potassium HR
Potassium MR
Potassium LR
Silica
Silver
Sulfate
Zinc
0.0 to 15.0 mg/L
20 to 200 mg/L
10 to 100 mg/L
0.0 to 20.0 mg/L
0.00 to 2.00 mg/L
0.000 to 1.000 mg/L
0 to 100 mg/L
0.00 to 3.00 mg/L
ACCESSORIES
REAGENT SETS
HI 93700-01 100 ammonia LR tests
HI 93700-03 300 ammonia LR tests
HI 93701-01 100 free chlorine tests (powder)
HI 93701-03 300 free chlorine tests (powder)
HI 93701-F 300 free chlorine tests (liquid)
HI 93701-T 300 total chlorine tests (liquid)
HI 93702-01 100 copper HR tests
HI 93702-03 300 copper HR tests
HI 93704-01 100 hydrazine tests
HI 93704-03 300 hydrazine tests
HI 93705-01 100 silica tests
HI 93705-03 300 silica tests
HI 93706-01 100 phosphorus tests
HI 93706-03 300 phosphorus tests
HI 93707-01 100 nitrite LR tests
HI 93707-03 300 nitrite LR tests
HI 93708-01 100 nitrite HR tests
HI 93708-03 300 nitrite HR tests
HI 93709-01 100 manganese HR tests
HI 93709-03 300 manganese HR tests
HI 93710-01 100 pH tests
HI 93710-03 300 pH tests
HI 93711-01 100 total chlorine tests (powder)
HI 93711-03 300 total chlorine tests (powder)
HI 93712-01 100 aluminum tests
HI 93712-03 300 aluminum tests
HI 93713-01 100 phosphate LR tests
HI 93713-03 300 phosphate LR tests
HI 93715-01 100 ammonia MR tests
HI 93715-03 300 ammonia MR tests
HI 93716-01 100 bromine tests
HI 93716-03 300 bromine tests
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Amino Acid
Turbidimetric
Turbidimetric
Turbidimetric
Heteropoly Blue
PAN
Turbidimetric
Zincon
HI 93717-01
HI 93717-03
HI 93718-01
HI 93718-03
HI 93719-01
HI 93719-03
HI 93720-01
HI 93720-03
HI 93721-01
HI 93721-03
HI 93722-01
HI 93722-03
HI 93723-01
HI 93723-03
HI 93726-01
HI 93726-03
HI 93728-01
HI 93728-03
HI 93729-01
HI 93729-03
HI 93730-01
HI 93730-03
HI 93731-01
HI 93731-03
HI 93732-01
HI 93732-03
HI 93737-01
HI 93737-03
HI 93738-01
HI 93738-03
HI 93740-01
HI 93740-03
HI 93746-01
HI 93746-03
HI 93748-01
HI 93748-03
HI 93749-01
HI 93749-03
HI 93754A-25
HI 93754B-25
HI 93754C-25
HI 93754D-25
HI 93754E-25
100 phosphate HR tests
300 phosphate HR tests
100 iodine tests
300 iodine tests
100 Mg hardness tests
300 Mg hardness tests
100 Ca hardness tests
300 Ca hardness tests
100 iron HR tests
300 iron HR tests
100 cyanuric acid tests
300 cyanuric acid tests
100 chromium VI HR tests
300 chromium VI HR tests
100 nickel HR tests
300 nickel HR tests
100 nitrate tests
300 nitrate tests
100 fluoride tests
300 fluoride tests
100 molybdenum tests
300 molybdenum tests
100 zinc tests
300 zinc tests
100 dissolved oxygen tests
300 dissolved oxygen tests
50 silver tests
150 silver tests
100 chlorine dioxide tests
300 chlorine dioxide tests
50 nickel LR tests
150 nickel LR tests
50 iron LR tests
150 iron LR tests
50 manganese LR tests
150 manganese LR tests
100 chromium VI LR tests
300 chromium VI LR tests
25 COD, LR EPA*, Dichromate Method test
25 COD, MR EPA*, Dichromate Method test
25 COD, HR, Dichromate Method test
25 COD, LR, Dichromate Method, Mercury Free test
25 COD, MR, Dichromate Method Mercury Free test
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HI 93754F-25 25 COD, LR ISO, Dichromate Method test
HI 93754G-25 25 COD, MR ISO**, Dichromate Method test
HI 93755-01 100 alkalinity tests
HI 93755-03 300 alkalinity tests
HI 93755-53 Chlorine Remover
HI 937521-01 50 calcium tests
HI 937521-03 150 calcium tests
HI 937520-01 50 magnesium tests
HI 937520-03 150 magnesium tests
HI 93757-01 100 ozone tests
HI 93757-03 300 ozone tests
HI 93703-52-2 Glycine Powder, Optional Reagent for 100 tests
HI 93750-01 100 potassium HR tests
HI 93750-03 300 potassium HR tests
HI 93751-01 100 sulfate tests
HI 93751-03 300 sulfate tests
HI 95747-01 100 copper LR tests
HI 95747-03 300 copper LR tests
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 740235
COD adapter
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)
134
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 equipment, 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 or 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.
135
Hanna Instruments Inc.
Highland Industrial Park
584 Park East Drive
Woonsocket, RI 02895 USA
Technical Support for Customers
Tel. (800) 426 6287
Fax (401) 765 7575
E-mail [email protected]
www.hannainst.com
Local Sales and Customer Service Office
Printed in ROMANIA
MAN83099 04/13
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