Hanna Instruments C 99 series Instruction Manual
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Instruction Manual
C 99 & C 200
Series
Multiparameter Bench
Photometers
Manufacturers since 1978
1
These Instruments are in
Compliance with the CE Directives
Dear Customer,
Thank you for choosing a Hanna product. Please read this instruction manual carefully before using the meter. This manual will provide you with the necessary information for the correct use of the instrument. If you need additional technical information, do not hesitate to e-mail us at [email protected]. These instruments are in compliance with directives.
PRELIMINARY EXAMINATION ............. 3
GENERAL DESCRIPTION ..................... 3
SPECIFICATIONS .............................. 4
TOTAL HARDNESS LOW RANGE ......... 76
HYDRAZINE ................................... 79
IODINE ......................................... 82
PRINCIPLE OF OPERATION ................ 4
FUNCTIONAL DESCRIPTION ............... 6
GUIDE TO DISPLAY CODES ................. 7
TIPS FOR AN ACCURATE MEASURE-
MENT ........................................... 10
IRON HIGH RANGE ......................... 84
IRON LOW RANGE .......................... 86
MANGANESE HIGH RANGE .............. 89
MANGANESE LOW RANGE ............... 91
MOLYBDENUM .............................. 94
PARAMETERS REFERENCE TABLES ... 12
OPERATIONAL GUIDE ...................... 19
NICKEL HIGH RANGE ...................... 97
NICKEL LOW RANGE ....................... 99
ABBREVIATIONS.................................20
NITRATE ...................................... 102
ALUMINUM ................................... 21
AMMONIA HIGH RANGE .................. 23
NITRITE HIGH RANGE .................... 104
NITRITE LOW RANGE ..................... 106
AMMONIA MEDIUM RANGE ............. 25
AMMONIA LOW RANGE ................... 27
BROMINE ..................................... 29
OXYGEN DEMAND, CHEMICAL HR .. 108
OXYGEN DEMAND, CHEMICAL MR .. 111
OXYGEN DEMAND, CHEMICAL LR ... 114
FREE CHLORINE ............................ 31
FREE CHLORINE HIGH RANGE.......... 34
TOTAL CHLORINE ........................... 37
OXYGEN, DISSOLVED .................... 117 pH ............................................. 120
PHOSPHATE HIGH RANGE ............. 122
TOTAL CHLORINE HIGH RANGE ......... 40
CHLORINE DIOXIDE ........................ 43
CHROMIUM VI HIGH RANGE ............ 46
PHOSPHATE LOW RANGE .............. 124
PHOSPHORUS ............................ 126
SILICA ........................................ 128
CHROMIUM VI LOW RANGE ............. 48
COLOR OF WATER .......................... 50
COPPER HIGH RANGE ..................... 52
SILVER ....................................... 131
ZINC ........................................... 134
INTERFACE WITH PC ..................... 137
COPPER LOW RANGE ...................... 54
CYANIDE ....................................... 56
CYANURIC ACID ............................. 59
FLUORIDE ..................................... 61
CALCIUM HARDNESS ...................... 64
STANDARD METHODS ................... 139
BATTERY REPLACEMENT ................ 140
ACCESSORIES ............................. 141
WARRANTY ................................. 143
CE DECLARATION OF CONFORMITY..144
MAGNESIUM HARDNESS ................ 67
TOTAL HARDNESS HIGH RANGE ........ 70
HANNA LITERATURE.........................145
USER NOTES...................................146
TOTAL HARDNESS MEDIUM RANGE .. 73
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
Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipment. If there is any damage, notify your Dealer.
Each Meter is supplied complete with:
• Two Sample Cuvets and Caps*
• One Transport Cap
• Two 9 V Batteries
• 12 VDC Transformer ( HI 710005 or HI 710006)
Note: Save all packing material until you are sure that the instrument functions correctly. Any defective item must be returned in its original packing with the supplied accessories.
* C99 & C200, C206, C207, C209, C210 and C213 are supplied with 3 cuvets and caps
C 99 & C 200 Series is a line of 15 different bench, microprocessorbased photometers that measure up to 46 parameters in water and wastewater. These multipurpose meters are manufactured to measure the most important parameters of the application they have been especially designed for:
C 99 Laboratories, with COD C 200 Laboratories
C 203 Aquaculture
C 206 Environmental Testing
C 208 Water Conditioning
C 205 Boilers & Cooling Towers
C 207 Industrial Wastewater
C 209 Education
C 210 Pulp & Paper Mills
C 212 Power Plant Utilities
C 215 Nutrient Analyses
C 218 Environmental Applic.
C 211 Chemical Manufacturers
C 213 Municipal Wastewater
C 216 Swimming Pool Applic.
All meters use an exclusive positive-locking system to ensure that the cuvet is in the same position every time it is placed into the measurement cell.
The reagents are in liquid or powder form and are supplied in bottles or in packets. The amount of reagent is precisely dosed to ensure the maximum repeatability.
Display codes aid the user in routine operations.
The meters have an auto-shut off feature, turning the unit off after
10 minutes of non-use.
The C 99 & C 200 Series can be connected to a personal computer via the HI 920010 three wire RS 232 cable. The HI 92000 Hanna
Windows ® data.
Compatible Software aids the user to manage all test
3
Light Life
Light Detector
Environment
Life of the instrument
Silicon Photocell
0 to 50°C (32 to 122°F); max 95% RH non-condensing
Power Supply
Auto-Shut off
Dimensions
2 x 9 V batteries / 12 to 20 VDC through voltage adapter
After 10' of non-use
230 x 165 x 70 mm (9.0 x 6.5 x 2.8")
Weight 640 g (22.6 oz.)
For specifications related to each single parameter (e.g. range, accuracy, etc.), refer to the related measurement section.
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 physicochemical characteristics of substance according to the Lambert-Beer
Law:
-log
I
/
I o
= ε
λ c d or
A = ε
λ c d
Where:
-log
I
/
I o
=Absorbance (A)
I
I
ε o
=intensity of incident light beam
=intensity of light beam after absorption
λ
=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.
4
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 Hanna's C 99 & C 200 multiparameter photometers is based on special subminiature tungsten lamps and narrow-band interference filters to guarantee both high performance and reliable results.
Four measuring channels (at four different wavelengths) allow a wide range of tests.
C 200 Block diagram (optical layout)
A microprocessor controlled special tungsten lamp emits radiation which is first optically conditioned and beamed to the sample contained in the cuvet. The optical path is fixed by the diameter of the cuvet. Then the light is spectrally filtered to a narrow spectral bandwidth, to obtain a light beam of intensity
I o
or
I.
The photoelectric cell collects the radiation potential in the mV range.
I
that is not absorbed by the sample and converts it into an electric current, producing a
The microprocessor uses this potential to convert the incoming value into the desired measuring unit and to display it on the LCD.
The measurement process is carried out in two phases: first the meter is zeroed and then the actual measurement is performed.
The cuvet 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) cuvets are optically identical to provide the same measurement conditions. Whenever possible use the same cuvet for both.
It is also necessary that the surface of the cuvet is 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 cuvet walls with hands.
Furthermore, in order to maintain the same conditions during the zeroing and the measuring phases, it is necessary to close the cuvet to prevent any contamination.
5
FRONT PANEL
1) Cuvet Holder
2) Dual Level Liquid Crystal Display
3) Programs List
4) READ DIRECT, to perform measurement immediately
5) TIMER, to perform measurements after a preprogrammed countdown
6) ZERO, to zero the meter prior to measurement
7) Program W and V , to select the desired parameter
8) ON/OFF, to turn the meter on and off
REAR PANEL
1) Power Supply 12 VDC 2.5 Watt
2) RS 232 Socket
3) Batteries Compartment
6
Note: The secondary LCD below shows a generic "P– –", whereas the meter will indicate the exact program number (e.g. in C 200,
"P1" for Aluminum).
This indicates that the meter is in a ready state and zeroing can be performed.
Sampling in progress. This flashing prompt appears each time the meter is performing a measurement.
The microprocessor is adjusting the light level, indicated by a scrolling "SIP".
This indicates that the meter is in a zeroed state and measurement can be performed.
The light level is accepted. The instrument is ready to perform a zero reading. This flashing prompt will only appear when a second zero reading needs to be performed.
Follow the measurement procedure described in the related chapter.
The instrument is performing an internal check-up.
The blinking "LOBAT" indicates that the battery voltage is getting low and the batteries need to be replaced.
This indicates that the batteries are dead and must be replaced.
7
Light over range. The cuvet is not inserted correctly and an eccess ambient light is reaching the detector. If the cuvet is properly inserted, then contact your dealer or the nearest Hanna Customer Service
Center.
The lamp is not working properly. Contact your dealer or the nearest Hanna Customer
Service Center.
The lamp is not working properly. Contact your dealer or the nearest Hanna Customer
Service Center.
This indicates that the meter has lost its configuration. Contact your dealer or the nearest Hanna Customer Service Center.
This indicates that the zeroing procedure failed due to a low signal-to-noise ratio. In this case press ZERO again.
The instrument cannot adjust the light level. Please check that the sample does not contain any debris.
There is not enough light to perform a measurement. Please check the preparation of the zero cuvet.
There is too much light to perform a measurement. Please check the preparation of the zero cuvet.
8
There is too much light for the sample measurement. Please check if the right sample cuvet is inserted.
The sample and zero cuvet are inverted.
A zero reading was not taken. Follow the instruction described in the measurement procedures for zeroing the meter.
Under range. A blinking "0.00" indicates that the sample absorbs less light than the zero reference. Check the procedure and make sure that you use the same cuvet for reference (zero) and measurement.
1) A flashing value of the maximum concentration indicates an over range condition. The concentration of the sample is beyond the programmed range: dilute the sample and rerun the test.
2) A flashing value lower than the maximum concentration indicates a low signal-to-noise ratio condition. In this case accuracy of the result is not guaranteed.
Repeat the reading procedure.
9
The instructions listed below should be carefully followed during testing to ensure best accuracy.
• Color or suspended matter in large amounts may cause interference, therefore, these should be removed by treatment with active carbon and by prior filtration.
• For a correct filling of the cuvet: the liquid in the cuvet forms a convexity on the top; the bottom of this convexity must be at the same level of the
10 mL mark.
10 mL
• In order to measure exactly e.g. 0.5 mL of sample or reagent with the 1 mL syringe, push the plunger completely into the syringe and insert the tip into the solution. Pull the plunger up to above the 0.0 mL mark. Take out the syringe and clean the outside of the syringe tip. Then, adjust the plunger to the 0.0 mL mark (the lower edge of the seal must be exactly on the 0.0 mL mark). 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 cuvet, push the plunger down 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 cuvet, even if the tip still contains some reagent or sample.
• Proper use of the dropper: to get good reproducible results, tap the dropper on the table for several times and wipe the outside of the dropper tip with a cloth. Always keep the dropper bottle in a vertical position while dosing the reagent.
10
• 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.
(a) (b) (c)
• It is important that the sample does not contain any debris. This would corrupt the readings.
• Do not let the reacted sample stand too long after reagent is added, or accuracy will be lost.
• In order to avoid reagent leaking and to obtain more accurate measurements, it is recommended to close the cuvet first with the supplied HDPE plastic s t o p p e r and then with the black cap.
• Each time the cuvet is used, the cap must be tightened to the same degree.
• Whenever the cuvet is placed into the measurement cell, it must be dry outside, and completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI 731318 or a lint-free cloth prior to insertion.
• 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 cuvet for zeroing and measurement.
• It is important to discard the sample immediately after the reading is taken because the glass might become permanently stained.
• All the reaction times reported in this manual are referred to 20°C
(68°F). As a general rule of thumb, they should be doubled at
10°C (50°F) and halved at 30°C (86°F).
11
Code Parameter Page
1 Aluminum
2 Ammonia MR
3 Ammonia LR
4 Bromine
5 Free Chlorine
6 Total Chlorine
7 Chlorine Dioxide
8 Chromium VI HR 46
9 Chromium VI LR 48
10 Color of Water 50
11 Copper HR
12 Copper LR
52
54
27
29
31
21
25
37
43
13 Cyanide
14 Cyanuric Acid
15 Fluoride
16 Ca Hardness
17 Mg Hardness
18 Hydrazine
64
67
79
56
59
61
19 Iodine
20 Iron HR
21 Iron LR
82
84
86
C99 - LABORATORIES, with COD
Code Parameter
22 Manganese HR
23 Manganese LR
24 Molybdenum
25 Nickel HR
26 Nitrate
27 Nitrite HR
28 Nitrite LR 106
29 Oxygen, Dissolved 117
30 Oxygen Demand,
Chemical (COD) HR 108
31 Oxygen Demand,
Chemical (COD) MR 111
32 Oxygen Demand,
Chemical (COD) LR 114
33 pH 120
Page
89
102
104
91
94
97
34 Phosphate HR
35 Phosphate LR
36 Phosphorus
37 Silica
38 Silver
39 Zinc
122
124
126
128
131
134
12
PARAMETERS REFERENCE TABLES
C 200 - LABORATORIES
Code Parameter Page
1 Aluminum
2 Ammonia MR
3 Ammonia LR
4 Bromine
5 Free Chlorine
6 Total Chlorine
7 Chlorine Dioxide 43
8 Chromium VI HR 46
9 Chromium VI LR 48
10 Color of Water
11 Copper HR
12 Copper LR
13 Cyanide
54
56
50
52
14 Cyanuric Acid
15 Fluoride
16 Ca Hardness
17 Mg Hardness
18 Hydrazine
21
25
27
29
31
37
59
61
64
67
79
Code Parameter Page
19 Iodine
20 Iron HR
21 Iron LR
22 Manganese HR
23 Manganese LR
24 Molybdenum
25 Nickel HR
26 Nitrate
27 Nitrite HR
28 Nitrite LR 106
29 Oxygen, Dissolved 117
30 pH 120
31 Phosphate HR
32 Phosphate LR
122
124
33 Phosphorus
34 Silica
35 Silver
36 Zinc
126
128
131
134
102
104
91
94
97
86
89
82
84
C 203 - AQUACULTURE
Code Parameter
1 Ammonia MR
2 Ammonia LR
3 Free Chlorine
4 Total Chlorine
5 Copper HR
6 Copper LR
7 Nitrate
Page
54
102
37
52
25
27
31
Code Parameter Page
8 Nitrite HR
9 Nitrite LR
104
106
10 Oxygen, Dissolved 117
11 pH 120
12 Phosphate HR
13 Phosphate LR
122
124
13
C 205 - BOILERS & COOLING TOWERS
Code Parameter Page
1 Aluminum
2 Ammonia MR
3 Ammonia LR
4 Bromine
5 Free Chlorine
6 Total Chlorine
7 Chlorine Dioxide
8 Chromium VI HR 46
9 Chromium VI LR 48
31
37
43
10 Copper HR
11 Copper LR
12 Hydrazine
52
54
79
27
29
21
25
Code Parameter Page
13 Iron HR
14 Iron LR
15 Molybdenum
16 Nitrate
17 Nitrite HR
18 Nitrite LR
104
106
19 Oxygen, Dissolved 117
20 pH
21 Phosphate HR
120
122
22 Phosphate LR
23 Silica
24 Zinc
124
128
134
94
102
84
86
C 206 - ENVIRONMENTAL TESTING
Code Parameter Page
1 Ammonia MR
2 Ammonia LR
3 Free Chlorine
4 Total Chlorine
5 Chromium VI HR 46
31
37
6 Chromium VI LR 48
7 Color of Water 50
25
27
8 Copper HR
9 Copper LR
10 Cyanuric Acid
11 Molybdenum
12 Nickel HR
52
54
59
94
97
Code Parameter Page
13 Nickel LR
14 Nitrate
99
102
15 Nitrite HR
16 Nitrite LR
104
106
17 Oxygen, Dissolved 117
18 pH
19 Phosphate HR
120
122
20 Phosphate LR
21 Phosphorus
22 Silica
23 Silver
24 Zinc
124
126
128
131
134
14
C 207 - INDUSTRIAL WASTEWATER
Code Parameter
1 Aluminum
2 Free Chlorine
3 Total Chlorine
4 Color of Water
5 Copper HR
6 Copper LR
7 Fluoride
8 Manganese HR
9 Manganese LR
10 Molybdenum
Page
37
50
21
31
52
54
61
89
91
94
Code Parameter Page
11 Nickel HR
12 Nickel LR
13 Nitrate 102
14 Oxygen, Dissolved 117
97
99
15 pH
16 Phosphate HR
17 Phosphate LR
120
122
124
18 Phosphorus
19 Silver
20 Zinc
126
131
134
C 208 - WATER CONDITIONING
Code Parameter
1 Ammonia MR
2 Ammonia LR
3 Free Chlorine
4 Total Chlorine
5 Copper HR
6 Copper LR
7 Fluoride
8 Iron HR
9 Iron LR
10 Manganese HR
11 Manganese LR
12 Molybdenum
Page
31
37
25
27
52
54
61
89
91
84
86
94
Code Parameter Page
13 Nickel HR
14 Nickel LR
15 Nitrate 102
16 Oxygen, Dissolved 117
97
99
17 pH
18 Phosphate HR
19 Phosphate LR
120
122
124
20 Phosphorus
21 Silica
22 Silver
23 Zinc
126
128
131
134
15
C 209 - EDUCATION
Code Parameter Page
1 Ammonia MR
2 Ammonia LR
3 Free Chlorine
4 Total Chlorine
5 Chromium VI HR 46
31
37
6 Chromium VI LR 48
7 Color of Water 50
25
27
8 Copper HR
9 Copper LR
10 Nitrate
52
54
102
Code Parameter Page
11 Nitrite HR
12 Nitrite LR
104
106
13 Oxygen, Dissolved 117
14 pH 120
15 Phosphate HR 122
16 Phosphate LR
17 Phosphorus
124
126
18 Silica
19 Silver
20 Zinc
128
131
134
C 210 - PULP & PAPER MILLS
Code Parameter
1 Aluminum
2 Free Chlorine
3 Total Chlorine
4 Chlorine Dioxide
Page
21
31
37
43
5 Color of Water 50
6 Dissolved Oxygen 117
Code Parameter
7 pH
8 Phosphate HR
9 Phosphate LR
10 Silica
11 Silver
12 Zinc
Page
120
122
124
128
131
134
16
C 211 - CHEMICAL MANUFACTURERS
Code Parameter
1 Aluminum
2 Ammonia MR
Page
3 Ammonia LR 27
4 Chromium VI HR 46
21
25
5 Chromium VI LR 48
6 Copper HR 52
7 Copper LR 54
8 Cyanuric Acid
9 Iodine
10 Iron HR
11 Iron LR
84
86
59
82
Code Parameter
12 Molybdenum
13 Nickel HR
14 Nickel LR
15 pH
16 Phosphate HR
17 Phosphate LR
18 Phosphorus
19 Silica
20 Silver
21 Zinc
Page
94
97
99
120
122
124
126
128
131
134
C 212 - POWER PLANT UTILITIES
Code Parameter
1 Ammonia MR
2 Ammonia LR
3 Free Chlorine
4 Total Chlorine
5 Copper HR
6 Copper LR
7 Hydrazine
Page
25
27
31
37
52
54
79
Code Parameter
8 Molybdenum
9 Phosphate HR
10 Phosphate LR
11 Phosphorus
12 Silica
13 Silver
Page
94
122
124
126
128
131
17
C 213 - MUNICIPAL WASTEWATER
Code Parameter
1 Aluminum
2 Ammonia MR
Page
3 Ammonia LR
4 Bromine
5 Free Chlorine
6 Total Chlorine 37
7 Chromium VI HR 46
27
29
31
21
25
8 Chromium VI LR
9 Color of Water
10 Copper HR
11 Copper LR
12 Iodine
48
50
52
54
82
Code Parameter
13 Nickel HR
14 Nickel LR
15 Nitrate
16 Nitrite HR
17 Nitrite LR 106
18 Oxygen, Dissolved 117
19 pH 120
20 Phosphate HR
21 Phosphate LR
122
124
22 Phosphorus
23 Silver
24 Zinc
Page
97
99
102
104
126
131
134
C 216 - SWIMMING POOL APPLICATION
Code Parameter Page
1 Free Chlorine HR 34
2 Total Chlorine HR 40
3 Cyanuric Acid 59
4 Bromine 29
Code Parameter Page
5 pH 120
6 Total Hardness LR 76
7 Total Hardness MR 73
8 Total Hardness HR 70
C 218 - ENVIRONMENTAL APPLICATION
Code Parameter
1 Ammonia MR
2 Ammonia HR
Page
3 Cyanide 56
4 Chromium VI HR 46
5 Chromium VI LR 48
25
23
Code Parameter
6 Phosphorus
7 Nitrite HR
8 Nitrite LR
9 Nitrate
Page
126
104
106
102
18
POWER CONNECTION
Plug the 12VDC adapter ( HI 710005 - 110VDC, or HI 710006 -
220VDC) into the DC socket. Plug the adapter into the outlet.
Alternatively, remove the battery cover on the back of the meter; attach 2 fresh 9V batteries and replace the cover.
Note : Insure the main line is surge protected.
Note : Always turn the meter off before unplugging it to insure no data is lost.
MEASUREMENT PROCEDURE
• Turn the meter on by pressing ON/OFF.
• The meter will first perform an LCD self diagnostic test by displaying a full set of figures.
• Then it will show a scrolling "c --- Hanna Inst" message.
• When the LCD displays “----”, the meter is ready. On the secondary LCD "P1" will appear to inform that the first parameter measurement procedure (e.g. in C200, P1 for Aluminum) can be performed.
• Press the PROGRAM W and PROGRAM V keys to select the desired parameter.
For the program number, see the tables on page 12 or look at the list printed on the mask of the meter.
19
• After the desired program number appears on the secondary display, follow the measurement procedure described in the related chapter.
• Select a new parameter measurement procedure by pressing the
PROGRAM W and PROGRAM V keys.
Note : in the following measurement sections, a generic "P– –" will be placed on the secondary LCD instead of the exact related message (e.g. in C 200, "P1" for
Aluminum).
• Before performing a test read carefully all the instructions related to the selected parameter.
°C :
HR :
LR : degree Celsius
EPA : US Environmental Protection Agency
°F : degree Fahrenheit g/L : grams per liter (ppt)
High Range
Low Range mg/L : milligrams per liter (ppm) mL : milliliter
MR : Medium Range
µµµµµ g/L : micrograms per liter (ppb)
PAN : 1-(2-pyridylazo)-2-naphtol
TPTZ : 2,4,6-tri-(2-pyridyl)-1,3,5-triazine
20
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
Method
0.00 to 1.00 mg/L
0.01 mg/L
±0.02 mg/L ±4% of reading
±0.01 mg/L
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 93712 A -0
HI 93712 B -0
HI 93712 C -0
Description
Ascorbic acid
Aluminon reagent
Bleaching powder
REAGENT SETS
HI 93712-01 Reagents for 100 tests
HI 93712-03 Reagents for 300 tests
For other accessories see page 141.
Quantity
1 packet
1 packet
1 packet
MEASUREMENT PROCEDURE
• Select the program number corresponding to Aluminum on the secondary LCD by pressing PROGRAM W and V .
• Fill a graduated beaker with 50 mL of sample.
• Add the content of one packet of HI 93712A
Ascorbic acid reagent and mix until dissolution is complete.
• Add the content of one packet of HI 93712B
Aluminon reagent and mix until dissolution is complete. This is the sample.
21 Aluminum
• Fill two cuvets with 10 mL of sample each (up to the mark).
10 mL
# 1
10 mL
# 2
• Add the content of one HI 93712C
Bleaching powder packet to one of the two cuvets. Replace the cap and shake vigorously until dissolution is complete. This is the blank.
# 1
• Place the blank into the holder and ensure that the notch on the cap is positioned securely into the groove.
# 1
• Press TIMER and the display will show the countdown prior to zeroing the blank. Alternatively wait for 15 minutes and then press ZERO. "SIP" will blink during zeroing.
• Wait for a few seconds and the display will show "-0.0-". Now the meter is zeroed and ready for measurement.
• Remove the blank and insert the other cuvet into the instrument.
# 2
• Press READ DIRECT.
"SIP" will blink during measurement.
• The instrument directly displays concentration in mg/L of aluminum on the Liquid Crystal Display.
INTERFERENCES
Interference may be caused by:
Iron above 20 mg/L
Phosphate above 50 mg/L
Alkalinity above 1000 mg/L
Fluoride must be absent
Aluminum 22
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.0 to 50.0 mg/L
0.1 mg/L
±0.5 mg/L ±5% of reading
±0.1 mg/L
Method
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 Description Quantity
HI 93733 A -0 Nessler Reagent 4 drops (in fresh and seawater)
HI 93733 B -0 Ammonia Reagent 9 mL (in fresh and seawater)
REAGENT SETS
HI 93733-01 Reagents for 100 tests
HI 93733-03 Reagents for 300 tests
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Ammonia HR on the secondary LCD by pressing PROGRAM W and V .
• Fill a cuvet with 1 mL of unreacted sample, by means of the syringe.
1 mL of sample
9 mL
• Add 9 mL of HI 93733B
Ammonia Reagent, by means of the 3 mL plastic pipette. Place the cap and swirl the solution to mix.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
23 Ammonia HR
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the cuvet.
• Add 4 drops of HI 93733A
Nessler Reagent. Replace the cap and mix the solution.
x 4
• Reinsert the cuvet into the instrument.
• Press TIMER and the display will show the countdown prior to measurement or, alternatively, wait for 3 minutes and 30 seconds and then press READ DIRECT. In both cases the display will show
“SIP” during measurement.
• The instrument directly displays concentration in mg/L of Ammonium ion (NH
4
+ ) on the Liquid Crystal Display.
• To convert the reading to mg/L of ammonia (NH
3 factor of 0.944.
), multiply by a
• To convert the reading to ammonia nitrogen (NH
3 a factor of 0.776.
-N), multiply by
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 HR 24
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.00 to 10.00 mg/L
0.01 mg/L
±0.05 mg/L ±5% of reading
±0.01 mg/L
Method
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 93715 A -0
HI 93715 B -0
Description
First Reagent
Quantity
4 drops (6 drops in seawater)
Second Reagent 4 drops (10 drops in seawater)
REAGENT SETS
HI 93715-01 Reagents for 100 tests
HI 93715-03 Reagents for 300 tests
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Ammonia MR on the secondary LCD by pressing PROGRAM W and V .
10 mL
• Fill the cuvet with 10 mL of unreacted sample (up to the mark) and replace the cap.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
25 Ammonia MR
• Remove the cuvet.
• Add 4 drops of the First reagent (6 drops in case of seawater analysis).
Replace the cap and mix the solution.
x 4
• Add 4 drops of the Second reagent
(10 drops in case of seawater analysis). Replace the cap and mix the solution.
x 4
• Reinsert the cuvet 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 DIRECT. In both cases “SIP” will blink during measurement.
• The instrument directly displays concentration in mg/L of ammonia nitrogen (NH -N) on the display.
3
• To convert the reading to mg/L of ammonia (NH factor of 1.216.
3
), multiply by a
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
SPECIFICATIONS
Range 0.00 to 3.00 mg/L
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.01 mg/L
±0.04 mg/L ±4% of reading
±0.01 mg/L
Method
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 93700 A -0
HI 93700 B -0
Description
First Reagent
Quantity
4 drops (6 drops in seawater)
Second Reagent 4 drops (10 drops in seawater)
REAGENT SETS
HI 93700-01 Reagents for 100 tests
HI 93700-03 Reagents for 300 tests
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Ammonia LR on the secondary LCD by pressing PROGRAM W and V .
• Fill the cuvet with 10 mL of unreacted sample, up to the mark, and replace the cap.
10 mL
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
27 Ammonia LR
• Remove the cuvet.
• Add 4 drops of the First reagent
(6 drops in case of seawater analysis). Replace the cap and mix the solution.
x 4
• Add 4 drops of the Second reagent (10 drops in case of seawater analysis). Replace the cap and mix the solution.
x 4
• Reinsert the cuvet 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 DIRECT. In both cases “SIP” will blink during measurement.
• The instrument directly displays concentration in mg/L of ammonia nitrogen (NH
3
-N) on the display.
• To convert the reading to mg/L of ammonia (NH
3 display by a factor of 1.216.
), multiply the
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
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.00 to 8.00 mg/L
0.01 mg/L
±0.08 mg/L ±3% of reading
±0.01 mg/L
Method
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the Standard Methods for the
Examination of Water and Wastewater, 18 th 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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Bromine on the secondary LCD by pressing PROGRAM W and V .
10 mL • Fill the cuvet with 10 mL of unreacted sample (up to the mark) and replace the cap.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
29 Bromine
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the cuvet and add the content of one packet of HI 93716 reagent. Replace the cap and shake gently for about 20 seconds to dissolve most of the reagent.
• Reinsert the cuvet 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 DIRECT. In both cases "SIP" will blink during measurement.
• The instrument directly displays concentration in mg/L of bromine on the Liquid Crystal Display.
INTERFERENCES
Interference may be caused by: Chlorine, Iodine, Ozone, Oxidized forms of Chromium and Manganese.
In case of water with hardness greater than 500 mg/L CaCO
3
, shake the sample for approximately 2 minutes after adding the reagent.
In case of water with alkalinity greater than 250 mg/L CaCO acidity greater than 150 mg/L CaCO
3
3
or
, 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
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.00 to 2.50 mg/L
0.01 mg/L
±0.03 mg/L ±3% of reading
±0.01 mg/L
Method
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
Description
DPD
LIQUID:
Code
HI 93701 A -F
HI 93701 B -F
Quantity
1 packet
Description Quantity
DPD1 Indicator 3 drops
DPD1 Buffer 3 drops
REAGENT SETS
HI 93701-F Reagents for 300 tests (liquid)
HI 93701-01 Reagents for 100 tests (powder)
HI 93701-03 Reagents for 300 tests (powder)
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Free Chlorine on the secondary LCD by pressing PROGRAM W and V .
10 mL
• Fill the cuvet with 10 mL of unreacted sample (up to the mark) and replace the cap.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
31 Free Chlorine
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the cuvet.
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 in case of seawater analysis).
• Wait for a minute to allow the undissolved reagent to precipitate and reinsert the cuvet into the instrument.
• Press READ DIRECT and the display will show “SIP” during measurement.
• The instrument directly displays concentration in mg/L of free chlorine on the Liquid Crystal Display.
Free Chlorine 32
Liquid reagents procedure
• To an empty cuvet 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.
x 3 x 3
• Reinsert the cuvet into the instrument.
• Press READ DIRECT and the display will show “SIP” during measurement.
• The instrument directly displays concentration in mg/L of free chlorine on the Liquid Crystal Display.
INTERFERENCES
Interference may be caused by: Bromine, Iodine, Ozone, Oxidized forms of Chromium and Manganese.
In case of water with hardness greater than 500 mg/L CaCO reagent.
3
, shake the sample for approximately 2 minutes after adding the powder
In case of water with alkalinity greater than 250 mg/L CaCO acidity greater than 150 mg/L CaCO
3
3
or
, the color of the sample may develop only partially, or may rapidly fade. To resolve this, neutralize the sample with diluted HCl or NaOH.
33 Free Chlorine
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.0 to 10.0 mg/L
0.1 mg/L
±0.1 mg/L ±3% of reading
±0.1 mg/L
Method
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
Code Description
HI 93701-0 DPD
HI 93734 B -0 Free & Total Chlorine HR Reagent
REAGENT SETS
HI 93734-01
HI 93734-03
Reagents for 100 tests
Reagents for 300 tests
For other accessories see page 141.
Quantity
1 packet
5 mL
MEASUREMENT PROCEDURE
• Select the program number corresponding to Free Chlorine HR on the secondary LCD by pressing PROGRAM W and V .
• Add to the cuvet 5 mL of HI 93734B reagent by means of the 5 mL syringe.
5 mL
Free Chlorine HR 34
Note: To measure exactly 5 mL of reagent with the syringe, push the plunger completely into the syringe and insert the tip into
HI 93734B reagent bottle. Pull the plunger out until the lower edge of the seal is on the 5 mL mark of the syringe.
probable level of liquid taken up by syringe
• Fill the cuvet up to the 10 mL mark with 5 mL of unreacted sample, using the 3 mL plastic pipette.
Note: rinse the 3 mL plastic pipette 2 or 3 times with sample before adding it to the cuvet with reagent.
5 mL of sample
10 mL
• Replace the cap and shake gently.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and "SIP" will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
35 Free Chlorine HR
• Remove the cuvet.
• Add the content of one packet of HI 93701 DPD reagent. Replace the cap and shake gently for 20 seconds (or 2 minutes in case of seawater analysis).
• Wait for a minute to allow the undissolved reagent to precipitate and reinsert the cuvet into the instrument.
• Press READ DIRECT and the display will show “SIP” during measurement.
• The instrument directly displays concentration in mg/L of free chlorine on the Liquid Crystal Display.
INTERFERENCES
Interference may be caused by: Bromine, Iodine, Ozone, Oxidized forms of Chromium and Manganese.
Alkalinity above 250 mg/L or acidity above 150 mg/L will not reliably develop the full amount of color or it may rapidly fade. To resolve this, neutralize the sample with diluted HCl or NaOH.
In case of water with hardness greater than 1000 mg/L CaCO powder reagent.
3 shake the sample for approximately 1 minute after adding the
,
Free Chlorine HR 36
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.00 to 3.50 mg/L
0.01 mg/L
±0.03 mg/L ±3% of reading
±0.01 mg/L
Method
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 93701 A -T
HI 93701 B -T
HI 93701 C
Description
DPD
Description
DPD1 indicator
DPD1 buffer
DPD3 solution
Quantity
1 packet
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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Total Chlorine on the secondary LCD by pressing PROGRAM W and V .
10 mL
• Fill the cuvet with 10 mL of unreacted sample
(up to the mark) and replace the cap.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
37 Total Chlorine
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the cuvet.
Powder reagents procedure
• Add 1 packet of HI 93711 reagent. Replace the cap and shake gently for 20 seconds
(or 2 minutes in case of seawater analysis).
• Reinsert the cuvet 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 DIRECT. In both cases “SIP” will blink during measurement.
• The instrument directly displays concentration in mg/L of total chlorine on the Liquid Crystal Display.
Liquid reagents procedure
• To an empty cuvet add 3 drops of HI
93701A-T DPD1 indicator, 3 drops of
HI 93701B-T DPD1 buffer and 1 drop of HI 93701C
DPD solution. Swirl gently to mix and immediately add 10 x 3 x 3 x 1
Total Chlorine 38
mL of unreacted sample. Replace the cap and shake gently again.
• Reinsert the cuvet 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 DIRECT. In both cases “SIP” will blink during measurement.
• The instrument directly displays concentration in mg/L of total chlorine on the Liquid Crystal Display.
Note: free and total chlorine have to be measured separately with fresh unreacted samples following the related procedure if both values are requested.
INTERFERENCES
Interference may be caused by: Bromine, Iodine, Ozone, Oxidized forms of Chromium and Manganese.
In case of water with hardness greater than 500 mg/L CaCO reagent.
3
, shake the sample for approximately 2 minutes after adding the powder
In case of water with alkalinity greater than 250 mg/L CaCO acidity greater than 150 mg/L CaCO
3
3
or
, the color of the sample may develop only partially, or may rapidly fade. To resolve this, neutralize the sample with diluted HCl or NaOH.
39 Total Chlorine
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.0 to 10.0 mg/L
0.1 mg/L
±0.1 mg/L ±3% of reading
±0.1 mg/L
Method
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
Code Description
HI 93701-0 DPD
HI 93734 B -0 Free & Total Chlorine HR Reagent
HI 93734 C -0 Total Chlorine HR Reagent
REAGENT SETS
HI 93734-01
HI 93734-03
Reagents for 100 tests
Reagents for 300 tests
For other accessories see page 141.
Quantity
1 packet
5 mL
3 drops
MEASUREMENT PROCEDURE
• Select the program number corresponding to Total Chlorine HR on the secondary LCD by pressing PROGRAM W and V .
• Add to the cuvet 5 mL of HI 93734B reagent by means of the 5 mL syringe.
5 mL
Total Chlorine HR 40
Note: To measure exactly 5 mL of reagent with the syringe, push the plunger completely into the syringe and insert the tip into
HI 93734B reagent bottle. Pull the plunger out until the lower edge of the seal is on the 5 mL mark of the syringe.
probable level of liquid taken up by syringe
• Fill the cuvet up to the 10 mL mark with 5 mL of unreacted sample, using the 3 mL plastic pipette.
Note: rinse the 3 mL plastic pipette 2 or 3 times with sample before adding it to the cuvet with reagent.
5 mL of sample
10 mL
• Replace the cap and shake gently.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and "SIP" will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
41 Total Chlorine HR
• Remove the cuvet.
• Add 3 drops of HI 93734C reagent to the cuvet.
• Add the content of one packet of HI 93701 DPD reagent to the cuvet.
Replace the cap and shake gently for 20 seconds (or 2 minutes in case of seawater analysis).
• Reinsert the cuvet into the instrument.
x 3
• Press TIMER and the display will show a countdown prior to the measurement or, alternatively, wait for 2 minutes and 30 seconds and press READ DIRECT. The display will show “SIP” during measurement.
• The instrument directly displays concentration in mg/L of total chlorine on the Liquid Crystal Display.
INTERFERENCES
Interference may be caused by: Bromine, Iodine, Ozone, Oxidized forms of Chromium and Manganese.
Alkalinity above 250 mg/L or acidity above 150 mg/L will not reliably develop the full amount of color or it may rapidly fade. To resolve this, neutralize the sample with diluted HCl or NaOH.
In case of water with hardness greater than 1000 mg/L CaCO
3 shake the sample for approximately 1 minute after adding the powder reagent.
,
Total Chlorine HR 42
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.00 to 2.00 mg/L
0.01 mg/L
±0.10 mg/L ±5% of reading
±0.01 mg/L
Method
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 93738 A -0
HI 93738 B -0
HI 93738 C -0
HI 93738 D -0
Description
Reagent A
Reagent C
Reagent D
Quantity
1 mL
Dechlorinating Reagent B 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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Chlorine Dioxide on the secondary LCD by pressing PROGRAM W and V .
• Fill two graduated mixing cylinders (#1 & #2) up to the
25 mL mark with the sample.
• Add 0.5 mL of HI 93738A chlo-
#1
25 ml
#2
25 ml rine dioxide reagent to each cylinder (#1 & #2), close them and invert several times to mix.
#1 & #2
#1 #2
43 Chlorine Dioxide
• Add the content of one packet of HI 93738B dechlorinating reagent to only 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 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 chlorine dioxide reagent to each cylinder (#1 & #2), close them and invert several times to mix.
Cylinder #2 is the reacted sample.
#1 & #2
#1 #2
• Fill a cuvet with 10 mL of the blank
(#1) up to the mark and replace the cap.
• Place the blank (#1) into the holder and ensure that the notch on the cap is positioned securely into the groove.
Chlorine Dioxide 44
#1
10 mL
#1
• Press ZERO and "SIP" will blink on the display.
• Wait for a few seconds and the display will show "-0.0-". Now the meter is zeroed and ready for measurement.
• Fill another cuvet with 10 mL of the reacted sample (#2) up to the mark and replace the cap.
10 mL
#2
• Insert the sample into the instrument.
#2
• Press READ DIRECT and "SIP" will blink during measurement.
• The instrument directly displays concentration in mg/L of chlorine dioxide on the Liquid Crystal Display.
SAMPLING PROCEDURE
It is recommended to analyze chlorine dioxide samples immediately after collection. Chlorine dioxide samples must be stored in dark glass stoppered bottles, 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.
45 Chlorine Dioxide
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0 to 1000 µg/L
1 µg/L
±5 µg/L ±4% of reading
±1 µg/L
Method
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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Chromium VI HR on the secondary LCD by pressing PROGRAM W and V .
• Fill the cuvet up to the mark with 10 mL of unreacted sample and replace the cap.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
10 mL
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
Chromium VI HR 46
• Remove the cuvet and add the content of one packet of HI
93723 reagent. Replace the cap and shake vigorously for about
10 seconds.
• Reinsert the cuvet 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
DIRECT. In both cases "SIP" will blink during measurement.
• The instrument directly displays concentration in µg/L of chromium
VI on the Liquid Crystal Display.
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.
47 Chromium VI HR
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0 to 300 µg/L
1 µg/L
±1 µg/L ±4% of reading
±1 µg/L
Method
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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Chromium VI LR on the secondary LCD by pressing PROGRAM W and V .
• Fill the cuvet with 10 mL of unreacted sample
(up to the mark) and replace the cap.
10 mL
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
Chromium VI LR 48
• Remove the cuvet and add the content of one packet of HI
93749 reagent. Replace the cap and shake vigorously for about 10 seconds.
• Reinsert the cuvet 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
DIRECT. In both cases "SIP" will blink during measurement.
• The instrument directly displays concentration in µg/L of Chromium VI on the Liquid Crystal Display.
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.
49 Chromium VI LR
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0 to 500 PCU (Platinum Cobalt Units)
1 PCU
±10 PCU ±5% of reading
± 1 PCU
Method
Tungsten lamp with narrow band interference filter @ 420 nm
Adaptation of the Standard Methods for the
Examination of Water and Wastewater, 18 th edition , Colorimetric Platinum Cobalt method.
REQUIRED ACCESSORIES
0.45 µm membrane for true color measurement.
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Color of Water on the secondary LCD by pressing PROGRAM W and V .
• Fill one cuvet up to the mark with deionized water and replace the cap. This is the blank.
10 mL
# 1
• Place the blank (# 1) into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and "SIP" will blink on the display.
# 1
• Wait for a few seconds and the display will show "-0.0-". Now the meter is zeroed and ready for measurement.
• Remove the blank.
Color of Water 50
• Fill another cuvet up to the mark with unfiltered sample and replace the cap.
This is the apparent color.
• Filter 10 mL of sample through a filter with a
0.45 µm membrane into the third cuvet, up to the 10 mL mark and replace the cap. This is the true color.
10 mL
# 2
# 3
• Insert the apparent color cuvet (# 2) into the instrument and ensure that the notch on the cap is positioned securely into the groove.
• Press READ DIRECT and "SIP" will blink on the display.
# 2
• The meter directly displays the value of apparent color in PCU on the Liquid Crystal Display.
• Remove the cuvet, insert the true color cuvet (# 3) into the instrument and ensure that the notch on the cap is positioned securely into the groove.
• Press READ DIRECT and "SIP" will blink on the display.
# 3
• The meter directly displays the value of true color in PCU on the
Liquid Crystal Display.
51 Color of Water
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.00 to 5.00 mg/L
0.01 mg/L
±0.02 mg/L ±4% of reading
±0.01 mg/L
Method
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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Copper HR on the secondary LCD by pressing PROGRAM W and V .
• Fill the cuvet with 10 mL of unreacted sample (up to the mark) and replace the cap.
10 ml
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
Copper HR 52
• Remove the cuvet.
• Add the content of one packet of HI 93702 reagent. Replace the cap and shake gently for about 15 seconds.
• Reinsert the cuvet 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 DIRECT. In both cases “SIP” will blink during measurement.
• The instrument directly displays concentration in mg/L of copper on the Liquid Crystal Display.
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.
53 Copper HR
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0 to 1000 µg/L
1 µg/L
±10 µg/L ±5% of reading
±1 µg/L
Method
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 93747-0
Description
Bicinchoninate
Quantity
1 packet
REAGENT SETS
HI 93747-01 Reagents for 100 tests
HI 93747-03 Reagents for 300 tests
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Copper LR on the secondary LCD by pressing PROGRAM W and V .
• Fill the cuvet with 10 mL of unreacted sample (up to the mark) and replace the cap.
10 mL
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
Copper LR 54
• Remove the cuvet.
• Add the content of one packet of HI 93747 reagent. Replace the cap and shake gently for about 15 seconds.
• Reinsert the cuvet 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 DIRECT. In both cases "SIP" will blink during measurement.
• Multiply the reading on the Liquid Crystal Display by 10 to obtain the concetration in mg/L of oxygen demand.
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.
55 Copper LR
SPECIFICATIONS
Range
Resolution
Method
0.000 to 0.200 mg/L
0.001 mg/L
Accuracy ±0.005 mg/L ±3% of reading
Typical EMC Dev.
±0.001 mg/L
Light Source Tungsten lamp with narrow band interference filter @ 610 nm
Adaptation of the Standard Methods for the
Examination of Water and Wastewater, 18 edition , Pyridine-Pyrazolone method. The reacth tion between cyanide and reagents causes a blue tint in the sample.
REQUIRED REAGENTS
Code
HI 93714 A -0
HI 93714 B -0
HI 93714 C -0
Description
Reagent A
Reagent B
Reagent C
REAGENT SETS
HI 93714-01 Reagents for 100 tests
HI 93714-03 Reagents for 300 tests
For other accessories see page 141.
Quantity
1 spoon
1 packet
1 packet
MEASUREMENT PROCEDURE
• Select the program number corresponding to Cyanide on the secondary LCD by pressing PROGRAM W and V .
• Fill the cuvet with 10 mL of unreacted sample (up to the mark) and replace the cap.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
10 mL
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
Cyanide 56
• Remove the cuvet and add 1 level spoon of HI 93714A Cyanide Reagent. Remember to close the reagent bottle immediately after use.
Note: Pay attention to the way the spoon is filled:
- do not press the powder;
- do not overfill it.
• Place the HDPE plastic stopper and cap immediately, to prevent the escape of chlorine gas which is developed during the reaction, and shake gently for 30 seconds.
• Wait for 30 seconds leaving the cuvet tightly capped and undisturbed, then add the content of one packet of HI 93714B reagent and shake gently for 10 seconds.
9
12
10"
3
6
• Immediately add the content of one packet of HI 93714C reagent, replace the cap and shake vigorously for 20 seconds.
• Reinsert the cuvet into the instrument.
57 Cyanide
• Press TIMER and the display will show the countdown prior to the measurement or, alternatively, wait for 25 minutes and press
READ DIRECT. In both cases "SIP" will blink during measurement.
Note : Shake gently the cuvet 4 or 5 times during the first 20 minutes of the countdown prior to the measurement. Accuracy is not affected by undissolved reagent powder.
• The instrument directly displays concentration in mg/L of cyanide on the Liquid Crystal Display.
• To convert the result in mg/L of Potassium Cyanide (KCN) multiply by a factor of 2.5.
Note : for most accurate results perform the test at 20-25 °C.
INTERFERENCES
Interference may be caused by large amounts of turbidity that will cause high readings.
Oxidizing (like chlorine) or reducing agents (such as sulfide or sulfur dioxide) are known to interfere with the measurement. Distillation will remove these.
Samples with high pH values should be adjusted to approximately pH 7 before testing.
CAUTION: cyanides, their solutions, and hydrogen cyanide liberated by acids, are very poisonous.
Cyanide 58
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0 to 80 mg/L
1 mg/L
±1 mg/L ±15% of reading
±1 mg/L
Method
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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Cyanuric Acid on the secondary LCD by pressing PROGRAM W and V .
• Fill the cuvet with 10 mL of unreacted sample
(up to the mark) and replace the cap.
10 mL
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
59 Cyanuric Acid
• Fill a graduated beaker up to the 25 mL mark with the sample, add the content of one packet of
HI 93722 reagent and swirl gently to mix.
• Fill a second cuvet with 10 mL of the reacted sample up to the mark. Replace the cap.
10 mL
• Reinsert the cuvet 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 DIRECT. In both cases "SIP" will blink during measurement.
• The instrument directly displays concentration in mg/L of cyanuric acid on the Liquid Crystal Display.
Cyanuric Acid 60
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.00 to 2.00 mg/L
0.01 mg/L
±5% of reading
±0.01 mg/L
Method
Tungsten lamp with narrow band interference filter @ 575 nm
Adaptation of the Standard Methods for the
Examination of Water and Wastewater, 18 th 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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Fluoride on the secondary LCD by pressing PROGRAM W and V .
• Add 2 mL of HI 93729 SPADNS reagent to two cuvets.
2 ml
• Fill one of the cuvets with distilled water
(up to the mark), replace the cap and invert several times to mix.
• Fill the other cuvet with sample (up to the mark), replace the cap and invert several times to mix.
10 ml
# 1
10 ml
# 2
61 Fluoride
• Place the cuvet with the reacted distilled water (# 1) into the holder and ensure that the notch on the cap is positioned securely into the groove.
# 1
• Press TIMER and the display will show the countdown prior to zeroing the blank or, alternatively, wait for two minutes and press ZERO and "SIP" will blink on the display.
• Wait for a few seconds and the display will show "-0.0-". Now the meter is zeroed and ready for measurement.
• Remove the cuvet.
# 2
• Insert the other cuvet (# 2) with the reacted sample into the instrument.
• Press READ DIRECT and "SIP" will blink on the LCD during measurement.
• The instrument directly displays concentration in mg/L of fluoride on the Liquid Crystal Display.
Note : For wastewater or seawater samples, before performing measurements, distillation is required.
Note : For most accurate results, use two graduated pipettes to deliver exactly 8 mL of distilled water and 8 mL of sample.
Fluoride 62
INTERFERENCES
Negative interferences may be caused by:
Alkalinity (as CaCO
3
) above 5000 mg/L
Aluminum above 0.1 mg/L
Iron, ferric above 10 mg/L
Positive interferences may be caused by:
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.
63 Fluoride
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.00 to 2.70 mg/L
0.01 mg/L
±0.11 mg/L ±5% of reading
±0.01 mg/L
Method
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the Standard Methods for the
Examination of Water and Wastewater, 18 th edition, Calmagite method. The reaction between calcium and reagents causes a reddish-violet tint in the sample.
REQUIRED REAGENTS
Code
HI 93720 A -0
HI 93720 B -0
HI 93720 C -0
Description
Ca & Mg indicator
Alkali solution
EGTA solution
REAGENT SETS
HI 93720-01 Reagents for 100 tests
HI 93720-03 Reagents for 300 tests
For other accessories see page 141.
Quantity
0.5 mL
0.5 mL
1 drop
MEASUREMENT PROCEDURE
• Select the program number corresponding to Hardness Ca on the secondary LCD by pressing PROGRAM W and V .
• 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 Calcium indicator solution and swirl to mix.
• Add 0.5 mL of
HI 93720B Alkali solution and swirl to mix.
Use this solution to rinse
2 cuvets before filling them up to the 10 mL mark.
# 1 # 2
Hardness Ca 64
• Add 1 drop of HI 93720C EGTA solution to one cuvet
(# 1), replace the cap and invert the cuvet several times to mix. This is the blank.
# 1
• Place the blank (# 1) into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and "SIP" will blink on the display.
# 1
• Wait for a few seconds and the display will show "-0.0-". Now the meter is zeroed and ready for measurement.
• Remove the blank and insert the second cuvet (# 2) into the instrument.
# 2
• Press READ DIRECT. "SIP" will blink during measurement.
• The instrument directly displays concentration in mg/L of calcium hardness, as CaCO
3
, on the Liquid Crystal Display.
• To convert the reading to mg/L of calcium (Ca), multiply by a factor of 0.4.
65 Hardness Ca
Note : The 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.
Now, follow normal measurement procedure. The true value of the sample is the reading obtained multiplied by a factor of one hundred
(the dilution factor).
The conversion factors to convert readings in mg/L to French degrees
(FD), German degrees (DD) and English degrees (ED) of hardness are as follows:
1 mg/L = 0.1 FD = 0.0556 DD = 0.07 ED.
INTERFERENCES
Interference may be caused by excessive amounts of heavy metals.
Hardness Ca 66
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.00 to 2.00 mg/L
0.01 mg/L
±0.11 mg/L ±5% of reading
±0.02 mg/L
Method
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the Standard Methods for the
Examination of Water and Wastewater, 18 th edition, EDTA colorimetric method. The reaction between magnesium and reagents causes a reddish-violet tint in the sample.
REQUIRED REAGENTS
Code
HI 93719 A -0
HI 93719 B -0
HI 93719 C -0
HI 93719 D -0
Description
Mg indicator
Alkali solution
EDTA solution
EGTA solution
REAGENT SETS
HI 93719-01 Reagents for 100 tests
HI 93719-03 Reagents for 300 tests
For other accessories see page 141.
Quantity
0.5 mL
0.5 mL
1 drop
1 drop
MEASUREMENT PROCEDURE
• Select the program number corresponding to Hardness Mg on the secondary LCD by pressing PROGRAM W and V .
• 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 Magnesium indicator solution, then swirl to mix.
67 Hardness Mg
• Add 0.5 mL of HI 93719B Alkali solution and swirl to mix. Use this solution to rinse
2 cuvets.
• Fill both cuvets up to the
10 mL mark.
10 mL
# 1
10 mL
# 2
• Add 1 drop of HI 93719C EDTA solution to one cuvet (# 1), replace the cap and invert the cuvet several times to mix. This is the blank.
# 1
• Add 1 drop of HI 93719D EGTA solution to the second cuvet (# 2), replace the cap and invert the cuvet several times to mix. This is the sample.
• Place the blank (# 1) into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and "SIP" will blink on the display.
# 2
# 1
• Wait for a few seconds and the display will show "-0.0-". Now the meter is zeroed and ready for measurement.
Hardness Mg 68
• Remove the blank (# 1) and insert the sample (# 2) into the instrument, making sure that the notch on the cap is positioned securely into the groove.
# 2
• Press READ DIRECT. “SIP” will blink during measurement.
• The instrument directly displays concentration in mg/L of magnesium hardness, as CaCO
3
, on the Liquid Crystal Display.
• To convert the result to mg/L of magnesium (Mg), multiply by a factor of 0.243.
Note : The 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 66 (Ca Hardness).
The conversion factors to convert readings in mg/L to French degrees
(FD), German degrees (DD) and English degrees (ED) of hardness are as follows:
1 mg/L = 0.1 FD = 0.0556 DD = 0.07 ED
INTERFERENCES
Interference may be caused by excessive amounts of heavy metals.
69 Hardness Mg
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
400 to 750 mg/L
5 mg/L
±10 mg/L ±2% of reading
±5 mg/L
Method
Tungsten lamp with narrow band interference filter @ 466 nm
Adaptation of the EPA method 130.1
.
The reaction between calcium, magnesium and reagents causes a red-violet tint in the sample.
REQUIRED REAGENTS
Code Description Quantity
HI 93735 A-HR Hardness Indicator reagent HR 9.5 mL
HI 93735 B -0
HI 93735 C -0
Hardness Buffer reagent
Fixing reagent
2 drops
1 packet
REAGENT SETS
HI 93735-02 Reagents for 100 tests High Range
(400 to 750 mg/L)
HI 93735-0 Reagents for 100 tests (0 to 750 mg/L)
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Total Hardness HR on the secondary LCD by pressing PROGRAM W and V .
• Using the syringe, add exactly 0.5 mL of unreacted sample to the cuvet.
• With the plastic pipette fill the cuvet up to the 10 mL mark adding HI
93735A-HR Indicator reagent.
Total Hardness HR 70
• Add 2 drops of HI 93735B Buffer reagent.
• Replace the cap, shake gently to mix and wait for 15 seconds.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and "SIP" will blink on the display.
x 2
• Wait for a few seconds and the display will show "-0.0-". Now the meter is zeroed and ready for measurement.
• Remove the cuvet and add the content of 1 packet of HI 93735C Fixing reagent.
• Replace the cap and shake gently till dissolution is complete.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
71 Total Hardness HR
• Press TIMER and the display will show the countdown prior to the measurement or, alternatively, wait for 2 minutes and press READ
DIRECT. In both cases "SIP" will blink during measurement.
• The instrument directly displays the total hardness in mg/L of
CaCO
3
, on the Liquid Crystal Display.
• The conversion factors to convert readings in mg/L to French
Degrees (FD), German Degrees (DD) and English Degrees (ED) of hardness are as follows:
1 mg/L= 0.1 FD = 0.0556 DD = 0.07 ED
INTERFERENCES
Interference may be caused by excessive amounts of heavy metals.
Note : if the sample is very acidic, some extra drops of HI 93735B
Buffer reagent may be added.
Total Hardness HR 72
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
200 to 500 mg/L
5 mg/L
±7 mg/L ±3% of reading
±5 mg/L
Method
Tungsten lamp with narrow band interference filter @ 466 nm
Adaptation of the EPA method 130.1
.
The reaction between calcium, magnesium and reagents causes a red-violet tint in the sample.
REQUIRED REAGENTS
Code Description Quantity
HI 93735 A-MR Hardness Indicator reagent MR 9.5 mL
HI 93735 B -0
HI 93735 C -0
Hardness Buffer reagent
Fixing reagent
2 drops
1 packet
REAGENT SETS
HI 93735-01 Reagents for 100 tests Medium Range
(200 to 500 mg/L)
HI 93735-0 Reagents for 100 tests (0 to 750 mg/L)
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Total Hardness MR on the secondary LCD by pressing PROGRAM W and V .
• Using the syringe, add exactly 0.5 mL of unreacted sample to the cuvet.
• With the plastic pipette fill the cuvet up to the
10 mL mark adding HI
93735A-MR Indicator reagent.
73 Total Hardness MR
• Add 2 drops of HI 93735B
Buffer reagent x 2
• Replace the cap and shake gently to mix.
Wait for 15 seconds.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and "SIP" will blink on the display.
• Wait for a few seconds and the display will show "-0.0-". Now the meter is zeroed and ready for measurement.
• Remove the cuvet and add the content of 1 packet of HI 93735C Fixing reagent.
• Replace the cap and shake gently till dissolution is complete.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
Total Hardness MR 74
• Press TIMER and the display will show the countdown prior to the measurement or, alternatively, wait for 2 minutes and press READ
DIRECT. In both cases "SIP" will blink during measurement.
• The instrument directly displays the hardness in mg/L of CaCO
3 on the Liquid Crystal Display.
,
• The conversion factors to convert readings in mg/L to French
Degrees (FD), German Degrees (DD) and English Degrees (ED) of hardness are as follows:
1 mg/L= 0.1 FD = 0.0556 DD = 0.07 ED
INTERFERENCES
Interference may be caused by excessive amounts of heavy metals.
Note : if the sample is very acidic, some extra drops of HI 93735B
Buffer reagent may be added.
75 Total Hardness MR
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0 to 250 mg/L
1 mg/L from 0 to 100 mg/L
5 mg/L from 100 to 250 mg/L
±5 mg/L ±4% of reading
±5 mg/L
Method
Tungsten lamp with narrow band interference filter @ 466 nm
Adaptation of the EPA method 130.1
.
The reaction between calcium, magnesium and reagents causes a red-violet tint in the sample.
REQUIRED REAGENTS
Code Description Quantity
HI 93735 A-LR Hardness Indicator reagent LR 9.5 mL
HI 93735 B -0
HI 93735 C -0
Hardness Buffer reagent
Fixing reagent
2 drops
1 packet
REAGENT SETS
HI 93735-00 Reagents for 100 tests Low Range (0 to 250 mg/L)
HI 93735-0 Reagents for 100 tests (0 to 750 mg/L)
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Total Hardness LR on the secondary LCD by pressing PROGRAM W and V .
• Using the syringe, add exactly 0.5 mL of unreacted sample to the cuvet.
• With the plastic pipette fill the cuvet up to the 10 mL mark adding HI 93735A-LR Indicator reagent.
Total Hardness LR 76
• Add 2 drops of HI 93735B-0
Buffer reagent.
x 2
• Replace the cap and shake gently to mix. Wait for 15 seconds.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and "SIP" will blink on the display.
• Wait for a few seconds and the display will show "-0.0-". Now the meter is zeroed and ready for measurement.
• Remove the cuvet and add the content of 1 packet of HI 93735C Fixing reagent.
• Replace the cap and shake gently till dissolution is complete.
77 Total Hardness LR
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press TIMER and the display will show the countdown prior to the measurement or, alternatively, wait for 2 minutes and press READ
DIRECT. In both cases "SIP" will blink during measurement.
• The instrument directly displays the hardness in mg/L of CaCO
3 on the Liquid Crystal Display.
,
• The conversion factors to convert readings in mg/L to French
Degrees (FD), German Degrees (DD) and English Degrees (ED) of hardness are as follows:
1 mg/L= 0.1 FD = 0.0556 DD = 0.07 ED
INTERFERENCES
Interference may be caused by excessive amounts of heavy metals.
Note : if the sample is very acidic, some extra drops of HI 93735B
Buffer reagent may be added.
Total Hardness LR 78
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0 to 400 µg/L
1 µg/L
±4% of full scale
±2 µg/L
Method
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 Quantity
Liquid Reagent 24 drops
REAGENT SETS
HI 93704-01 Reagents for 100 tests
HI 93704-03 Reagents for 300 tests
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Hydrazine on the secondary LCD by pressing PROGRAM W and V .
• Fill one cuvet up to the mark with 10 mL of distilled water.
10 mL
# 1
• Place the cap and insert the cuvet
# 1 into the holder. Ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and SIP will blink while the instrument is adjusting the light level.
# 1
79 Hydrazine
• Wait for a few seconds and the display will show a blinking "good". Now the meter is ready to take a zero measurement.
• Fill a second cuvet with 10 mL of unreacted sample (up to the mark) and replace the cap.
10 mL
# 2
• Add 12 drops of the
HI 93704 reagent to each cuvet. Replace the caps and shake gently to mix.
x 12 x 12
# 1 # 2
• Place the blank (#1) into the holder and ensure that the notch on the cap is positioned securely into the groove.
# 1
• Press TIMER and the display will show the countdown prior to zeroing the blank. "SIP" will blink during zeroing.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the blank.
Hydrazine 80
• Insert the cuvet with the reacted sample
(# 2) into the instrument. Ensure that the notch on the cap is positioned securely into the groove.
# 2
• Press READ DIRECT and “SIP” will blink during measurement.
• The instrument directly displays concentration in µg/L of hydrazine on the Liquid Crystal Display.
INTERFERENCES
Interference may be caused by:
Highly colored samples
Highly turbid samples
Aromatic amines
81 Hydrazine
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.0 to 12.5 mg/L
0.1 mg/L
±0.1 mg/L ±5% of reading
±0.1 mg/L
Method
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the Standard Methods for the
Examination of Water and Wastewater, 18 th 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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Iodine on the secondary LCD by pressing PROGRAM W and V .
10 mL
• Fill the cuvet with 10 mL of unreacted sample
(up to the mark) and replace the cap.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
Iodine 82
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the cap and add the content of one packet of HI
93718 reagent. Replace the cap and shake gently for about
30 seconds to dissolve most of the reagent.
• Reinsert the cuvet 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 DIRECT. In both cases "SIP" will blink during measurement.
• The instrument directly displays concentration in mg/L of iodine on the Liquid Crystal Display.
INTERFERENCES
Interference may be caused by: Bromine, Chlorine, Ozone, Oxidized forms of Chromium and Manganese.
In case of water with hardness greater than 500 mg/L CaCO
3
, shake the sample for approximately 2 minutes after adding the reagent.
In case of water with alkalinity greater than 250 mg/L CaCO acidity greater than 150 mg/L CaCO
3
3
or
, the color of the sample may develop only partially, or may rapidly fade. To resolve this, neutralize the sample with diluted HCl or NaOH.
83 Iodine
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.00 to 5.00 mg/L
0.01 mg/L
±0.04 mg/L ±2% of reading
±0.01 mg/L
Method
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 Quantity
Powder Reagent 1 packet
REAGENT SETS
HI 93721-01 Reagents for 100 tests
HI 93721-03 Reagents for 300 tests
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Iron HR on the secondary LCD by pressing PROGRAM W and V .
• Fill the cuvet with 10 mL of unreacted sample
(up to the mark) and replace the cap.
10 mL
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
Iron HR 84
• Remove the cuvet and add the content of one packet of HI 93721 reagent. Replace the cap and shake until dissolution is complete.
• Reinsert the cuvet 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
DIRECT. In both cases "SIP" will blink during measurement.
• The instrument directly displays concentration in mg/L of iron on the Liquid Crystal Display.
INTERFERENCES
Interference may be caused by:
Molybdate Molybdenum above 50 ppm
Calcium above 10000 ppm (as CaCO
3
)
Magnesium above 100000 ppm (as CaCO
3
Chloride above 185000 ppm.
)
85 Iron HR
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0 to 400 µg/L
1 µg/L
±10 µg/L ±8% of reading
±1 µg/L
Method
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 100 tests
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Iron LR on the secondary LCD by pressing PROGRAM W and V .
• Fill one graduated mixing cylinder up to the 25 mL mark with deionized water.
• Add the content of one packet of HI 93746 TPTZ reagent, close the cylinder and shake vigorously for 30 seconds. This is the blank.
9
12
30"
3
6
• Fill a cuvet with 10 mL of the blank up to the mark and replace the cap.
10 mL
25 ml
Iron LR 86
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and "SIP" will blink on the display.
• Wait for a few seconds and the display will show "-0.0-". Now the meter is zeroed and ready for measurement.
• Remove the cuvet.
• Fill another graduated mixing cylinder up to the 25 mL mark with the sample.
25 ml
9
12
30"
3
6
• Add the content of one packet of HI 93746 TPTZ reagent, close the cylinder and shake vigorously for 30 seconds. This is the reacted sample.
• Fill a cuvet with 10 mL of the reacted sample up to the mark and replace the cap.
10 mL
87 Iron LR
• 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 DIRECT. In both cases "SIP" will blink during measurement.
• The instrument directly displays concentration in µg/L of iron on the Liquid Crystal Display.
INTERFERENCES
Interference may be caused by:
Cadmium above 4.0 mg/L
Chromium 3+ above 0.25 mg/L
Chromium 6+ 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 88
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
Method
0.0 to 20.0 mg/L
0.1 mg/L
±0.2 mg/L ±3% of reading
±0.1 mg/L
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the Standard Methods for the
Examination of Water and Wastewater, 18 th edition, Periodate method. The reaction between manganese and reagents causes a pink tint in the sample.
REQUIRED REAGENTS
Code
HI 93709 A -0
HI 93709 B -0
Description
Citrate
Quantity
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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Manganese HR on the secondary LCD by pressing PROGRAM W and V .
• Fill the cuvet with 10 mL of unreacted sample (up to the mark) and replace the cap.
10 mL
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
89 Manganese HR
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the cuvet.
• Add the content of one packet of
HI 93709A Citrate reagent. Replace the cap and shake gently until dissolution is complete.
• Add the content of one packet of
HI 93709B Sodium Periodate reagent. Replace the cap and shake gently until dissolution is complete.
• Reinsert the cuvet 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 DIRECT. In both cases “SIP” will blink during measurement.
• The instrument directly displays concentration in mg/L of manganese on the Liquid Crystal Display.
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 90
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0 to 300 µg/L
1 µg/L
±2 µg/L ±3% of reading
±1 µg/L
Method
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 93748 A -0
HI 93748 B -0
HI 93748 C -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 (only when necessary, see note)
REAGENT SETS
HI 93748-01 Reagents for 50 tests
HI 93748-03 Reagents for 150 tests
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Manganese LR on the secondary LCD by pressing PROGRAM W and V .
10 mL
• Fill one cuvet with 10 mL of deionized water
(up to the mark).
10 mL
• Fill a second cuvet with 10 mL of sample (up to the mark).
• Add the content of one packet of HI 93748A Ascorbic acid to each cuvet, replace the caps and shake gently until dissolution is complete.
91 Manganese LR
• Add 0.2 mL of the
HI 93748B Alkaline-cyanide reagent solution to each cuvet, replace the caps and shake gently.
• Add 1 mL of the
HI 93748C 0.1% PAN indicator solution to each cuvet, replace the caps and shake gently.
• Place the cuvet with the reacted deionized water (blank) into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press TIMER and the display will show the countdown prior to zeroing the blank. Alternatively wait for 2 minutes and then press ZERO. "SIP" will blink during zeroing.
• Wait for a few seconds and the display will show "-0.0-". Now the meter is zeroed and ready for measurement.
• Insert the second cuvet with the reacted sample into the instrument.
Manganese LR 92
• Press READ DIRECT. "SIP" will blink during measurement.
• The instrument directly displays concentration in µg/L of manganese on the display.
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 cuvet and swirl until complete dissolution of the turbidity
.
INTERFERENCES
Interference may be caused by:
Aluminum above 20 mg/L
Cadmium above 10 mg/L
Calcium above 200 mg/L as CaCO
3
Cobalt above 20 mg/L
Copper above 50 mg/L
Iron above 10 mg/L
Lead above 0.5 mg/L
Magnesium above 100 mg/L as CaCO
3
Nickel above 40 mg/L
Zinc above 15 mg/L.
93 Manganese LR
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.0 to 40.0 mg/L
0.1 mg/L
±0.3 mg/L ±5% of reading
±0.1 mg/L
Method
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 93730 A -0
HI 93730 B -0
HI 93730 C -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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Molybdenum on the secondary LCD by pressing PROGRAM W and V .
10 mL • Fill the cuvet with 10 mL of unreacted sample
(up to the mark) and replace the cap.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
Molybdenum 94
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Fill one graduated mixing cylinder up to the 25 mL mark with the sample.
• Add the content of one packet of HI 93730A molybdenum reagent, close the cylinder and invert it several times until dissolution is complete.
• Add the content of one packet of HI 93730B molybdenum reagent to the cylinder, close and invert it several times until dissolution is complete.
• Add the content of one packet of HI 93730C molybdenum reagent to the cylinder, close and shake it vigorously.
• Fill an empty cuvet with 10 mL of sample up to the mark and replace the cap.
• Insert the cuvet into the instrument.
10 mL
25 mL
95 Molybdenum
• Press TIMER and the display will show the countdown prior to the measurement or, alternatively, wait for five minutes and press
READ DIRECT. In both cases, "SIP" will blink during measurement.
• The instrument directly displays concentration in mg/L of molybdenum on the Liquid Crystal Display.
INTERFERENCES
Interference may be caused by:
Aluminum above 50 mg/L
Chromium above 1000 mg/L
Copper above 10 mg/L
Iron above 50 mg/L
Nickel above 50 mg/L
– Nitrite, as NO
2
Sulfate above 200 mg/L
Highly buffered samples or with extreme pH may exceed the buffering capacity of the reagents.
Molibdenum 96
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.00 to 7.00 g/L
0.01 g/L
±4% of reading
±0.02 g/L
Method
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 Quantity
Powder reagent 1 packet
REAGENT SETS
HI 93726-01 Reagents for 100 tests
HI 93726-03 Reagents for 300 tests
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Nickel HR on the secondary LCD by pressing PROGRAM W and V .
10 mL
• Fill the cuvet up to the mark with 10 mL of unreacted sample and replace the cap.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
97 Nickel HR
• Remove the cuvet and add the content of one packet of HI
93726 reagent. Replace the cap and shake gently until dissolution is complete.
• Reinsert the cuvet 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
DIRECT. In both cases "SIP" will blink during measurement.
• The instrument directly displays concentration in g/L of nickel on the Liquid Crystal Display.
INTERFERENCES
Interference may be caused by copper.
Nickel HR 98
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.000 to 1.000 mg/L
0.001 mg/L
±0.010 mg/L ±7% of reading
±0.001 mg/L
Method
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
Description
Phthalate-phosphate
HI 93740B-0
HI 93740C-0
HI 93703-51
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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Nickel LR on the secondary LCD by pressing PROGRAM W and V .
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
Phthalate-phosphate reagent to each beaker.
Cap and swirl gently until the reagent is dissolved.
Note : If sample contains iron (Fe 3+ ), it is important that all powder be dissolved completely before continuing with following step.
99 Nickel LR
• Add 1 mL of HI 93740B 0.3% PAN solution to each beaker, cap and swirl to mix.
• Press TIMER and the display will show a countdown prior to adding reagent C or, alternatively, wait for 15 minutes. Then, in both cases, add one packet of HI 93740C EDTA reagent to each beaker, cap and swirl to mix until complete dissolution.
• Fill one cuvet up to the mark with 10 mL of the blank.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and "SIP" will appear on the display.
10 mL
• Wait for a few seconds and the display will show "-0.0-". Now the meter is zeroed and ready for measurement.
• Fill a second cuvet up to the mark with 10 mL of the reacted sample.
• Insert the second cuvet into the instrument.
10 mL
Nickel LR 100
• Press READ DIRECT and "SIP" will appear during measurement.
• The instrument directly displays concentration in mg/L of nickel on the Liquid Crystal Display.
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 cuvet and swirl until complete dissolution of the turbidity.
INTERFERENCES
Interference may be caused by:
Co 2+ must not be present
Fe 2+ must not be present
Al 3+ above 32 mg/L
Ca 2+ above 1000 mg/L (as CaCO
3
Cd 2+ above 20 mg/L
)
Cl – above 8000 mg/L
Cr 3+ above 20 mg/L
Cr 6+ above 40 mg/L
Cu 2+ above 15 mg/L
F – above 20 mg/L
Fe 3+ above 10 mg/L
K + above 500 mg/L
Mg 2+ above 400 mg/L
Mn 2+ above 25 mg/L
Mo 6+ above 60 mg/L
Na + above 5000 mg/L
Pb 2+ above 20 mg/L
Zn 2+ above 30 mg/L
101 Nickel LR
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.0 to 30.0 mg/L
0.1 mg/L
±0.5 mg/L ±10% of reading
±0.1 mg/L
Method
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 Quantity
Powder reagent 1 packet
REAGENT SETS
HI 93728-01 Reagents for 100 tests
HI 93728-03 Reagents for 300 tests
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Nitrate on the secondary LCD by pressing PROGRAM W and V .
• Using the pipette, fill the cuvet with 6 ml of sample, up to half of its height, and replace the cap.
6 mL
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
Nitrate 102
• Remove the cuvet and add the content of one packet of HI 93728 reagent.
• Replace the cap and immediately shake vigorously for exactly 10 seconds by moving the cuvet up and down. Continue to mix by inverting the cuvet gently and slowly for 50 seconds, while taking care not to induce air bubbles. A deposit remains, but this does not affect the measurement. Time and way of shaking could sensitively affect the measurement.
• Reinsert the cuvet 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 DIRECT. In both cases "SIP" will blink during measurement.
• The instrument directly displays concentration in mg/L of nitratenitrogen on the Liquid Crystal Display.
• To convert the reading to mg/L of nitrate (NO factor of 4.43.
3
– ), multiply by a
INTERFERENCES
Interference may be caused by:
Ammonia and amines, as urea and primary aliphatic amines
Chloride above 100 ppm (negative interference)
Chlorine above 2 ppm (positive interference)
Copper
Iron(III) (positive interference)
Strong oxidizing and reducing substances
Sulfide (it must be absent)
103 Nitrate
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0 to 150 mg/L
1 mg/L
±4 mg/L ±4% of reading
±1 mg/L
Method
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 Description
HI 93708-0 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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Nitrite HR on the secondary LCD by pressing PROGRAM W and V .
• Fill the cuvet up to the mark with 10 mL of unreacted sample and replace the cap.
10 mL
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
Nitrite HR 104
• Remove the cuvet.
• Add the content of one packet of HI 93708 reagent. Replace the cap and shake gently until dissolution is complete.
• Reinsert the cuvet 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 DIRECT. In both cases “SIP” will blink during measurement.
• The instrument directly displays concentration in mg/L of nitrite on the Liquid Crystal Display.
• To convert the reading to mg/L of nitrogen-nitrite (NO concentration, multiply the reading by a factor of 0.304.
2
– -N)
• To convert the reading to mg/L of sodium nitrite (NaNO
2 multiply the reading by a factor of 1.5.
)
105 Nitrite HR
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.00 to 0.35 mg/L
0.01 mg/L
±0.02 mg/L ±4% of reading
±0.01 mg/L
Method
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 Quantity
Powder reagent 1 packet
REAGENT SETS
HI 93707-01 Reagents for 100 tests
HI 93707-03 Reagents for 300 tests
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Nitrite LR on the secondary LCD by pressing PROGRAM W and V .
• Fill the cuvet with 10 mL of unreacted sample
(up to the mark) and replace the cap.
10 mL
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
Nitrite LR 106
• Remove the cuvet.
• Add the content of one packet of
HI 93707 reagent. Replace the cap and shake gently for about
15 seconds.
• Reinsert the cuvet 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
DIRECT. In both cases “SIP” will blink during measurement.
• The instrument directly displays concentration in mg/L of nitrite nitrogen.
• To convert the NO tion (NO
2
–
2
– -N concentration to the nitrite ion concentra-
), multiply the reading by factor of 3.29.
• To convert the NO tion (NaNO
2
2
– -N concentration to sodium nitrite concentra-
), multiply the reading by factor of 4.93.
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.
107 Nitrite LR
CHEMICAL OXYGEN DEMAND
HIGH RANGE
SPECIFICATIONS
Range
Resolution
Precision
Typical EMC
Deviation
Light Source
0 to 15000 mg/L
10 mg/L (1 mg/L x 10)
Standard deviation ±220 @ 10000 mg/L
±1 mg/L
Method
Tungsten lamp with narrow band interference filter @ 610 nm
Adaptation of the EPA method 410.4
. Oxidizable organic compounds reduce the dichromate ion
(orange) to the Chromium (III) ion (green). The amount of Chromium (III) formed is determined.
REQUIRED REAGENTS
Code
HI 93754C
Description Quantity
Liquid Reagent 25 vials
REAGENT SETS AND ACCESSORIES
C 9800-01
C 9800-02
HI 93754C-25 Reagents for up to 24 tests
HI 740216
HI 740217
Hanna Reactor (115 VAC)
Hanna Reactor (230 VAC)
Test tube cooling rack (25 holes)
Laboratory bench safety shield
For other accessories see page 141.
MEASUREMENT PROCEDURE
Before starting to use the reagent kit it is important to read carefully all the instructions and the Health & Safety Data Sheet
(HSDS). Pay particular attention to all warnings, cautions and notes. Failure to do so may result in serious injury to the operator.
• Choose a homogeneous sample. Samples containing settleable solids need to be homogenized with a blender.
COD HR 108
• For sample digestion use a block heater reactor with holes to accommodate digestion vials. Use of the optional HI 740217 safety shield is strongly recommended.
Preheat the Hanna Reactor C 9800 to 150 °C (302°F). For correct use of the reactor follow Reactor Instruction Manual.
Do not use an oven or microwave because leaking samples can generate a corrosive and possibly explosive atmosphere.
• Remove the cap from a reagent vial for the COD-HR.
Note: The reagent is light sensitive, thus store the unused vials in their container and in a refrigerator if possible.
• Use the supplied syringe to add exactly 0.2 mL of sample to the vial, while keeping the vial at a 45degree angle. This is the sample.
• Replace the cap tightly and mix by inverting the vial a couple of times.
Warning: as the vial becomes very hot, be careful in handling it.
• Using the other clean syringe, add to another reagent vial exactly
0.2 mL of deionized water, while keeping the vial at a 45-degree angle. Replace the cap tightly and invert several times. This is the blank.
Warning: as the vial becomes very hot, be careful in handling it.
Note: for an accurate measurement:
1) run a blank with each set of samples and use the same box of reagents for blank and samples.
2) use two graduated pipettes to deliver exactly 0.2 mL of deionized water and 0.2 mL of sample to the vials.
• Insert the vials into the reactor and heat them for 2 hours at 150°C.
• At the end of the digestion period the Hanna Reactor will automatically switch off. 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 HI 740216 rack.
Warning: as the vials are still hot, be careful in handling them.
109 COD HR
• 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.
• Select the program number corresponding to Oxygen Demand,
Chemical (COD) - HR on the secondary LCD by pressing PROGRAM
W and V .
• Place carefully the COD-vial adapter in the instrument and check that it fits properly.
• Place the blank into the holder.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the blank.
• Place the sample into the holder.
• Press READ and “SIP” will blink during measurement.
• Multiply the reading on the Liquid Crystal Display by 10 to abtain the concentration in mg/L of oxygen demand.
INTERFERENCES: chlorides > 20000 ppm
COD HR 110
CHEMICAL OXYGEN DEMAND
MEDIUM RANGE
SPECIFICATIONS
Range
Resolution
Precision
Typical EMC
Deviation
Light Source
0 to 1500 mg/L
1 mg/L
Standard deviation ±22 @ 1000 mg/L
±1 mg/L
Method
Tungsten lamp with narrow band interference filter @ 610 nm
Adaptation of the EPA method 410.4.
Oxidizable organic compounds reduce the dichromate ion
(orange) to the Chromium (III) ion (green). The amount of Chromium (III) formed is determined.
REQUIRED REAGENTS
Code
HI 93754B
Description Quantity
Liquid Reagent 25 vials
REAGENT SETS AND ACCESSORIES
C 9800-01
C 9800-02
HI 93754B-25 Reagents for up to 24 tests
HI 740216
HI 740217
Hanna Reactor (115 VAC)
Hanna Reactor (230 VAC)
Test tube cooling rack (25 holes)
Laboratory bench safety shield
For other accessories see page 141.
MEASUREMENT PROCEDURE
Before starting to use the reagent kit it is important to read carefully all the instructions and the Health & Safety Data Sheet
(HSDS). Pay particular attention to all warnings, cautions and notes. Failure to do so may result in serious injury to the operator.
• Choose a homogeneous sample. Samples containing settleable solids need to be homogenized with a blender.
111 COD MR
• For sample digestion use a block heater reactor with holes to accommodate digestion vials. Use of the optional HI 740217 safety shield is strongly recommended.
Preheat the Hanna Reactor C 9800 to 150 °C (302°F). For correct use of the reactor follow Reactor Instruction Manual.
Do not use an oven or microwave because leaking samples can generate a corrosive and possibly explosive atmosphere.
• Remove the cap from a reagent vial for the COD-MR.
Note: The reagent is light sensitive, thus store the unused vials in their container and in a refrigerator if possible.
• Use the supplied syringe to add exactly 2.0 mL of sample to the vial, while keeping the vial at a 45degree angle. This is the sample.
• Replace the cap tightly and mix by inverting the vial a couple of times.
Warning: as the vial becomes very hot, be careful in handling it.
• Using the other clean syringe, add to another reagent vial exactly
2.0 mL of deionized water, while keeping the vial at a 45-degree angle. Replace the cap tightly and invert several times. This is the blank.
Warning: as the vial becomes very hot, be careful in handling it.
Note: for an accurate measurement:
1) run a blank with each set of samples and use the same box of reagents for blank and samples.
2) use two graduated pipettes to deliver exactly 2.0 mL of deionized water and 2.0 mL of sample to the vials.
• Insert the vials into the reactor and heat them for 2 hours at 150°C.
• At the end of the digestion period the Hanna Reactor will automatically switch off. 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 HI 740216 rack.
Warning: as the vials are still hot, be careful in handling them.
COD MR 112
• 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.
• Select the program number corresponding to Oxygen Demand,
Chemical (COD) - MR on the secondary LCD by pressing PROGRAM
W and V .
• Place carefully the COD-vial adaptor in the instrument and check that it fits properly.
• Place the blank into the holder.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the blank.
• Place the sample into the holder.
• Press READ and “SIP” will blink during measurement.
• The instrument directly displays concentration in mg/L of oxygen demand on the Liquid Crystal Display.
INTERFERENCES: chlorides > 2000 ppm
113 COD MR
CHEMICAL OXYGEN DEMAND
LOW RANGE
SPECIFICATIONS
Range
Resolution
Precision
Typical EMC
Deviation
Light Source
0 to 150 mg/L
1 mg/L
Standard deviation ±4 @ 150 mg/L
±1 mg/L
Method
Tungsten lamp with narrow band interference filter @ 420 nm
Adaptation of the EPA method 410.4.
Oxidizable organic compounds reduce the dichromate ion
(orange) to the Chromium (III) ion (green). The amount of remaining dichromate is determined.
REQUIRED REAGENTS
Code
HI 93754A
Description Quantity
Liquid Reagent 25 vials
REAGENT SETS AND ACCESSORIES
C 9800-01
C 9800-02
HI 93754A-25 Reagents for up to 24 tests
HI 740216
HI 740217
Hanna Reactor (115 VAC)
Hanna Reactor (230 VAC)
Test tube cooling rack (25 holes)
Laboratory bench safety shield
For other accessories see page 141.
MEASUREMENT PROCEDURE
Before starting to use the reagent kit it is important to read carefully all the instructions and the Health & Safety Data Sheet
(HSDS). Pay particular attention to all warnings, cautions and notes. Failure to do so may result in serious injury to the operator.
• Choose a homogeneous sample. Samples containing settleable solids need to be homogenized with a blender.
COD LR 114
• For sample digestion use a block heater reactor with holes to accommodate digestion vials. Use of the optional HI 740217 safety shield is strongly recommended.
Preheat the Hanna Reactor C 9800 to 150 °C (302°F). For correct use of the reactor follow Reactor Instruction Manual.
Do not use an oven or microwave because leaking samples can generate a corrosive and possibly explosive atmosphere.
• Remove the cap from a reagent vial for the COD-LR.
Note: The reagent is light sensitive, thus store the unused vials in their container and in a refrigerator if possible.
• Use the supplied syringe to add exactly 2.0 mL of sample to the vial, while keeping the vial at a 45degree angle. This is the sample.
• Replace the cap tightly and mix by inverting the vial a couple of times.
Warning: as the vial becomes very hot, be careful in handling it.
• Using the other clean syringe, add to another reagent vial exactly
2.0 mL of deionized water, while keeping the vial at a 45-degree angle. Replace the cap tightly and invert several times. This is the blank.
Warning: as the vial becomes very hot, be careful in handling it.
Note: for an accurate measurement:
1) run a blank with each set of samples and use the same box of reagents for blank and samples.
2) use two graduated pipettes to deliver exactly 2.0 mL of deionized water and 2.0 mL of sample to the vials.
• Insert the vials into the reactor and heat them for 2 hours at 150°C.
• At the end of the digestion period the Hanna Reactor will automatically switch off. 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 HI 740216 rack.
Warning: as the vials are still hot, be careful in handling them.
115 COD LR
• 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.
• Select the program number corresponding to Oxygen Demand,
Chemical (COD) - LR on the secondary LCD by pressing PROGRAM
W and V .
• Place carefully the COD-vial adapter in the instrument and check that it fits properly.
• Place the blank into the holder.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the blank.
• Place the sample into the holder.
• Press READ and “SIP” will blink during measurement.
• The instrument directly displays concentration in mg/L of oxygen demand on the Liquid Crystal Display.
INTERFERENCES: chlorides > 2000 ppm
COD LR 116
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.0 to 10.0 mg/L
0.1 mg/L
±0.4 mg/L ±3% of reading
± 0.1 mg/L
Method
Tungsten lamp with narrow band interference filter @ 420 nm
Adaptation of the Standard Methods for the
Examination of Water and Wastewater, 18 th edition , Azide modified Winkler method. The reaction between dissolved oxygen and the reagents causes a yellow tint in the sample.
REQUIRED REAGENTS
Code
HI 93732 A -0
HI 93732 B -0
HI 93732 C -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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Dissolved Oxygen on the secondary LCD by pressing PROGRAM W and V .
• 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 and 5 drops of
HI 93732B.
x 5 x 5
117 Dissolved Oxygen
• Add some 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 would corrupt the reading.
• Invert several times the bottle. The sample becomes orange-yellow and a flocculant agent will appear.
• Let the sample stand and the flocculant agent will start to settle.
• After approximately 2 minutes, when the upper half of the bottle becomes limpid, add 10 drops of HI 93732C.
x 10
• Replace the cap and invert the bottle until dissolution of the settled flocculant is complete. The sample is ready for measurement when it is yellow and completely limpid.
• Fill the cuvet up to the mark with 10 mL of the unreacted (original) sample, and replace the cap. This is the blank.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
10 mL
Dissolved Oxygen 118
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the cuvet.
• Fill another cuvet up to the mark with 10 mL of the reacted sample and replace the cap.
• Reinsert the cuvet into the instrument.
• Press READ DIRECT and "SIP" will blink during measurement.
• The instrument will then directly display the concentration of dissolved oxygen in mg/L on the Liquid Crystal Display.
INTERFERENCES
Interferences may be caused by reducing and oxidizing materials.
119 Dissolved Oxygen
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
6.5 to 8.5 pH
0.1 pH
±0.1 pH
±0.1 pH
Method
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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to pH on the secondary
LCD by pressing PROGRAM W and V .
10 mL • Fill the cuvet with 10 mL of unreacted sample
(up to the mark) and replace the cap.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
pH 120
• Remove the cuvet and add 5 drops of HI 93710 Phenol Red
Indicator. Replace the cap and mix the solution.
x 5
• Reinsert the cuvet into the instrument.
• Press the READ DIRECT key and “SIP” will blink on the display during measurement.
• The instrument directly displays the pH measured value on the
Liquid Crystal Display.
121 pH
SPECIFICATIONS
Range
Resolution
0.0 to 30.0 mg/L
0.1 mg/L
Accuracy ±1 mg/L ±4% of reading
Typical EMC Dev.
±0.1 mg/L
Light Source Tungsten lamp with narrow band interference filter @ 525 nm
Method Adaptation of the Standard Methods for the
Examination of Water and Wastewater, 18 th edition, Amino Acid method. The reaction between phosphate and reagents causes a blue tint in the sample.
REQUIRED REAGENTS
Code
HI 93717 A -0
HI 93717 B -0
HI 93717 B -P
Description
Molybdate
Quantity
10 drops
Amino Acid 0.5 mL
Amino Acid powder 2 packets for 100 tests
REAGENT SETS
HI 93717-01 Reagents for 100 tests
HI 93717-03 Reagents for 300 tests
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Add the content of one packet of HI 93717B-P Amino
Acid powder to HI 93717B Amino Acid bottle when you use it for the first time only. After you have added the powder, replace the cap of the bottle and swirl it gently for 2 minutes to dissolve the powder. Leave the bottle undisturbed for about 5 minutes, then the reagent is ready.
Note : after adding the Amino Acid powder, the HI 93717B reagent will last for about one month.
• Select the program number corresponding to Phosphate HR on the secondary LCD by pressing PROGRAM W and V .
• Fill the cuvet with 10 mL of unreacted sample (up to the mark) and replace the cap.
10 mL
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
Phosphate HR 122
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show "-0.0-". Now the meter is zeroed and ready for measurement.
• Remove the cuvet.
• Add 10 drops of HI 93717A
Molybdate reagent.
x 10
• Add to the cuvet 0.5 mL of the solution prepared in the HI
93717B bottle. Replace the cap and mix the solution.
• Reinsert the cuvet 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
DIRECT. In both cases "SIP" will blink during measurement.
• The instrument directly displays concentration in mg/L of phosphate (PO
4
3– ) on the Liquid Crystal Display.
INTERFERENCES
Interference may be caused by:
Sulfide
Chloride above 150000 mg/L
Calcium above 10000 mg/L as CaCO
3
Magnesium above 40000 mg/L as CaCO
3
Ferrous iron above 100 mg/L
123 Phosphate HR
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.00 to 2.50 mg/L
0.01 mg/L
±0.04 mg/L ±4% of reading
±0.01 mg/L
Method
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 Description
HI 93713-0 Powder reagent
REAGENT SETS
HI 93713-01 Reagents for 100 tests
HI 93713-03 Reagents for 300 tests
For other accessories see page 141.
Quantity
1 packet
MEASUREMENT PROCEDURE
• Select the program number corresponding to Phosphate LR on the secondary LCD by pressing PROGRAM W and V .
• Rinse, cap and shake the cuvet several times with unreacted sample. Fill the cuvet with
10 mL of sample up to the mark and replace the cap.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
10 mL
Phosphate LR 124
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the cuvet and add the content of one packet of HI 93713 reagent.
Replace the cap and shake gently (for about 2 minutes) until the powder is completely dissolved.
• Reinsert the cuvet 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
DIRECT. In both cases "SIP" will blink during measurement.
• The instrument directly displays concentration in mg/L of phosphate on the Liquid Crystal Display.
• To convert the reading to mg/L of P
2
0.747.
O
5
, multiply by a factor of
• To convert the reading to mg/L of phosphorus (P) concentration, multiply by a factor of 0.326.
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.
125 Phosphate LR
SPECIFICATIONS
Range
Resolution
Accuracy ±0.3 mg/L ±4% of reading
Typical EMC dev.
±0.2 mg/L
Light Source
0.0 to 15.0 mg/L
0.1 mg/L
Method
Tungsten lamp with narrow band interference filter @ 525 nm
Adaptation of the Standard Methods for the
Examination of Water and Wastewater, 18 th edition , Amino Acid method. The reaction between phosphorus and the reagents causes a blue tint in the sample.
REQUIRED REAGENTS
Code
HI 93706 A -0
HI 93706 B -0
Description
Molybdate
Amino Acid Powder
REAGENT SETS
HI 93706-01 Reagents for 100 tests
HI 93706-03 Reagents for 300 tests
For other accessories see page 141.
Quantity
10 drops
1 packet
MEASUREMENT PROCEDURE
• Select the program number corresponding to Phosphorus on the secondary LCD by pressing PROGRAM W and V .
• Fill the cuvet with 10 mL of unreacted sample (up to the mark) and replace the cap.
10 mL
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
Phosphorus 126
• Wait for a few seconds and the display will show "-0.0-". Now the meter is zeroed and ready for measurement.
• Remove the cuvet.
• Add 10 drops of HI 93706A Molybdate reagent.
x 10
• Add the content of one packet of
HI 93706B-0 Phosphorus Reagent B
(Amino Acid) to the cuvet. Replace the cap and shake gently until dissolution is complete.
• Reinsert the cuvet 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
DIRECT. In both cases "SIP" will blink during measurement.
• The instrument directly displays concentration in mg/L of phosphorus on the Liquid Crystal Display.
INTERFERENCES
Interference may be caused by:
Sulfide
Chloride above 150000 mg/L
Calcium above 10000 mg/L as CaCO
3
Magnesium above 40000 mg/L as CaCO
3
Ferrous iron above 100 mg/L
127 Phosphorus
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.00 to 2.00 mg/L
0.01 mg/L
±0.03 mg/L ±3% of reading
±0.01 mg/L
Method
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 93705 A -0
HI 93705 B -0
HI 93705 C -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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Silica on the secondary LCD by pressing PROGRAM W and V .
• Fill the cuvet with 10 mL of unreacted sample (up to the mark).
10 mL
• Add 6 drops of HI 93705A Molybdate reagent. Replace the cap and swirl the solution.
• Wait for 4 minutes, add the content of one packet of HI 93705B Citric acid reagent and shake until it is completely dissolved.
x 6
Silica 128
• Wait for 1 minute. This is the blank.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
9
12
3
1’
6
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the cuvet and add the content of one packet of HI 93705C
Amino acid reagent and shake until it is completely dissolved.
• Reinsert the cuvet 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 DIRECT. In both cases “SIP” will blink during measurement.
• The instrument directly displays concentration in mg/L of silica
(SiO
2
) on the Liquid Crystal Display.
129 Silica
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.
Silica 130
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.000 to 1.000 mg/L
0.001 mg/L
±0.005 mg/L ±10% of reading
± 0.001 mg/L
Method
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 93737 A -0
HI 93737 B -0
HI 93737 C -0
HI 93737 D -0
HI 93703-51
Description
Buffer Reagent A
Buffer Reagent B
Quantity
1 mL
1 mL
Indicator Reagent C 2 mL
Fixing Reagent D
Dispersing Agent
2 mL
4-6 drops
(only when necessary, see note)
REAGENT SETS
HI 93737-01 Reagents for 50 tests
HI 93737-03 Reagents for 150 tests
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Silver on the secondary LCD by pressing PROGRAM W and V .
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 reagent to only one beaker (the blank) and swirl gently to mix.
131
# 1
Silver
• Add exactly 1.0 mL of HI 93737B reagent to the other beaker (the sample) and swirl gently to mix.
# 2
• Press TIMER and the display will show the countdown prior to adding reagent C or, alternatively, wait for 2 minutes. Then, in both cases, add exactly 1.0 mL of HI 93737C reagent to each beaker and swirl.
# 1 # 2
• Press TIMER or, alternatively, wait for 2 minutes.
Then, in both cases, add 1.0 mL of HI 93737D reagent to each beaker and swirl.
• Then press TIMER or, alternatively, wait for 2 minutes to allow reaction to complete.
# 1 # 2
• Fill one cuvet up to the mark with 10 mL of the blank.
• Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove.
10 mL
# 1
# 1
Silver 132
• Press ZERO and "SIP" will blink on the display.
• Wait for a few seconds and the display will show "-0.0.-". Now the meter is zeroed and ready for measurement.
• Fill a second cuvet up to the mark with 10 mL of the reacted sample.
• Insert the second cuvet into the instrument.
# 2
10 mL
# 2
• Press READ DIRECT and the display will show "SIP" during measurement.
• The instrument directly displays concentration in mg/L of silver on the Liquid Crystal Display.
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 cuvet and swirl until complete dissolution of turbidity.
INTERFERENCES
Cd
Cl -
2+
Co 2+
Cr 3+
Interference may be caused by:
Al
Ca
3+
2+ above 30 mg/L above 1000 mg/L Fe as CaCO
3
Fe 2+
3+
Cr 6+
2+ Cu
F above 20 mg/L above 1.5 mg/L above 20 mg/L above 40 mg/L above 15 mg/L above 20 mg/L
K +
Mn above 8000 mg/L Mg 2+ above 1000 mg/L
Na
Ni
Pb
Zn
2+
+
2+
2+
2+ above 1.5 mg/L above 10 mg/L above 500 mg/L above 25 mg/L as CaCO
3 above 5000 mg/L above 1.5 mg/L above 20 mg/L above 30 mg/L
133 Silver
SPECIFICATIONS
Range
Resolution
Accuracy
Typical EMC
Deviation
Light Source
0.00 to 3.00 mg/L
0.01 mg/L
±0.03 mg/L ±3% of reading
±0.01 mg/L
Method
Tungsten lamp with narrow band interference filter @ 575 nm
Adaptation of the Standard Methods for the
Examination of Water and Wastewater, 18 th 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 93731 A -0
HI 93731 B -0
Description
Reagent A
Reagent B
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 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Zinc on the secondary
LCD by pressing PROGRAM W and V .
• 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 zinc reagent, close the cylinder and invert several times to mix until dissolution is complete.
Zinc 134
• Fill one cuvet with 10 mL of the reacted sample up to the mark.
10 mL
• Place the cap and insert the cuvet into the cell and ensure that the notch on the cap is positioned securely into the groove.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the display will show “-0.0-”. Now the meter is zeroed and ready for measurement.
• Remove the cuvet and add 0.5 mL of HI 93731B cyclohexanone to the cuvet.
Note : To prevent any contamination from the polycarbonate cap, prior to replacing it, close the sample cuvet with the supplied
HDPE plastic stopper.
• Replace the cap and mix the sample for
15 seconds.
• Insert the sample into the instrument.
135 Zinc
• 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 DIRECT. In both cases "SIP" will blink during measurement.
• The instrument directly displays concentration in mg/L of zinc on the Liquid Crystal Display.
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 136
To connect your meter to the PC use the optional HI 920010
(available from your Hanna Dealer). Make sure that your meter is switched off and plug the connectors, one into the meter RS 232C socket, the other into the serial port of your PC.
Note : Cables other than HI 920010 may use a different configuration, in which case, communication between the meter and the PC may not be possible.
SETTING THE BAUD RATE
The transmission speed (baud rate) of the meter and the external device must be identical. The meter is factory set to 2400.
If you wish to change this value, please contact your nearest Hanna
Center.
SENDING COMMANDS FROM PC
With terminal programs such as, for example, Telix ® , Windows
Terminal ® , it is possible to remotely control your Hanna Instruments bench meter. Use HI 920010 cable to connect the meter to the PC, start the terminal program and set the communication options as follows: 8, N, 1, no flow control.
Command Types
To send a command to the meter the scheme is:
<DLE> < command> <CR>
This line makes the computer send a Data Link Escape character (/ or
?), the command expressed as a number or a 3-character sequence and a CR character.
Note: Windows Terminal ® and all the other terminal programs that support the ANSI escape sequence, represent the DLE character by the string ‘^P’ and the CR character by the string
‘^M’.
Type of Commands
/OFF - Turn the meter OFF
/PDR - Press Read Direct
/PTR - Press Timer
/PZR - Press Zero
Windows ® and Windows Terminal
TELIX ®
Excel © Copyright of "Microsoft Co."
Lotus 1-2-3 © Copyright of "Lotus Co."
®
is registered Trademark of "Deltacomm"
are registered Trademark of "Microsoft Co."
137
/PUP - Program Up
/PDN - Program Down
/PTM - Turn Test Mode On
/Brx - Set the baud rate
1 - 300
3 - 1200
/KBL - Lock Keyboard
2 - 600
4 - 2400
/KBU - Unlock Keyboard
?PR# - Send Current Program Number
?BRQ - Send current baud rate
1 - 150
3 - 600
5 - 2400
2 - 300
4 - 1200
?CNQ - Send Concentration (three bytes) conc decimal point unit m - ppm t - ppt h - pH b - ppb u - pcu
?ERR - send error / status information
0 - No error
1 - CAP
2 - HI
3 - ZERO
4 - LO
5 - IDLE
6 - ZERO DONE
7 - TIMED READ
DROPS/ m L CROSS REFERENCE
138
Description
Cyanide
Cyanuric Acid
Fluoride
Hardness, Ca
Hardness, Mg
Hardness, Total HR
Hardness, Total MR
Hardness, Total LR
Hydrazine
Iodine
Iron, HR
Iron, LR
Manganese, HR
Manganese, LR
Molybdenum
Nickel, HR
Nickel, LR
Nitrate
Nitrite, HR
Nitrite, LR
Oxygen, Dissolved pH
Phosphate, HR
Phosphate, LR
Phosphorus
Silica
Silver
Zinc
Aluminum
Ammonia, HR
Ammonia, MR
Ammonia, LR
Bromine
Chlorine, Free
Chlorine, Free HR
Chlorine, Total
Chlorine, Total HR
Chlorine Dioxide
Chromium VI, HR
Chromium VI, LR
COD HR
COD MR
COD LR
Color of Water
Copper, HR
Copper, LR
Range Method
0.00 to 1.00 mg / L
0.0 to 50.0 mg/L
0.00 to 10.00 mg / L
0.00 to 3.00 mg / L
0.00 to 8.00 mg / L
0.00 to 2.50 mg / L
0.00 to 10.00 mg / L
0.00 to 3.50 mg / L
0.00 to 10.00 mg / L
0.00 to 2.00 mg / L
0 to 1000 µg / L
0 to 300 µg / L
0 to 15000 mg/L
0 to 1500 mg/L
0 to 150 mg/L
0 to 500 PCU
0.00 to 5.00 mg / L
0 to 1000 µg / L
Aluminon
Nessler
Nessler
Nessler
DPD
DPD
DPD
DPD
DPD
Chlorophenol Red
Diphenylcarbohydrazide
Diphenylcarbohydrazide
Dichromate, Mercuric Sulphate
Dichromate, Mercuric Sulphate
Dichromate, Mercuric Sulphate
Colorimetric Platinum Cobalt
Bicinchoninate
Bicinchoninate
0.000 to 0.200 mg / L Pyridine-Pyrazolone
0 to 80 mg / L
0.00 to 2.00 mg / L
0.00 to 2.70 mg / L
Turbidimetric
SPADNS
Calmagite
0.00 to 2.00 mg / L
400 to 750 mg/L
200 to 500 mg/L
0 to 250 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
0.0 to 20.0 mg / L
0 to 300 µg / L
0.0 to 40.0 mg / L
0.00 to 7.00 g / L
Calmagite
Calmagite
Calmagite
Calmagite p-Dimethylaminobenzaldehyde
DPD
Phenantroline
TPTZ
Periodate Oxidation
PAN
Mercaptoacetic Acid
Photometric
0.000 to 1.000 mg / L PAN
0.0 to 30.0 mg / L
0 to 150 mg / L
0.00 to 0.35 mg / L
0.0 to 10.0 mg / L
6.5 to 8.5 pH
0.0 to 30.0 mg / L
Cadmium Reduction
Ferrous Sulfate
Diazotization
Winkler
Phenol Red
Amino Acid
0.00 to 2.50 mg / L
0.0 to 15.0 mg / L
Ascorbic Acid
Amino Acid
0.00 to 2.00 mg / L Heteropoly Blue
0.000 to 1.000 mg / L PAN
0.00 to 3.00 mg / L Zincon
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Besides to the 12 VDC supply, these meters can also be fed by two 9V batteries.
To prolong battery life, switch your meter off after use. However, the meter has an auto-shut off feature that will turn itself off after 10 minutes of non-use.
A blinking "LOBAT" on the display, while a measurement is in progress, indicates low voltage and the batteries should be replaced.
If the batteries are not replaced immediately, in order to prevent erroneous readings due to low voltage, "-BA-" is displayed soon afterwards. At this point the batteries must be changed.
Battery replacement must only take place in a non-hazardous area using two 9V alkaline batteries.
Remove the battery cover on the back of photometer, attach two fresh
9V batteries, while paying attention to the correct polarity, and replace the cover.
The meter will turn on automatically when a new battery is connected. You can turn it off by pressing ON/OFF.
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REAGENT SETS
HI 93700-01 100 ammonia LR tests
HI 93700-03 300 ammonia LR tests
HI 93701-01 100 free chlorine tests (powder)
HI 93701-03 300 free chlorine tests (powder)
HI 93701-F 300 free chlorine tests (liquid)
HI 93701-T 300 total chlorine tests (liquid)
HI 93702-01 100 copper HR tests
HI 93702-03 300 copper HR tests
HI 93704-01 100 hydrazine tests
HI 93704-03 300 hydrazine tests
HI 93705-01 100 silica tests
HI 93705-03 300 silica tests
HI 93706-01 100 phosphorus tests
HI 93706-03 300 phosphorus tests
HI 93707-01 100 nitrite LR tests
HI 93707-03 300 nitrite LR tests
HI 93708-01 100 nitrite HR tests
HI 93708-03 300 nitrite HR tests
HI 93709-01 100 manganese HR tests
HI 93709-03 300 manganese HR tests
HI 93710-01 100 pH tests
HI 93710-03 300 pH tests
HI 93711-01 100 total chlorine tests (powder)
HI 93711-03 300 total chlorine tests (powder)
HI 93712-01 100 aluminum tests
HI 93712-03 300 aluminum tests
HI 93713-01 100 phosphate LR tests
HI 93713-03 300 phosphate LR tests
HI 93714-01 100 cyanide tests
HI 93714-03 300 cyanide tests
HI 93715-01 100 ammonia MR tests
HI 93715-03 300 ammonia MR tests
HI 93716-01 100 bromine tests
HI 93716-03 300 bromine tests
HI 93717-01 100 phosphate HR tests
HI 93717-03 300 phosphate HR tests
HI 93718-01 100 iodine tests
HI 93718-03 300 iodine tests
HI 93719-01 100 Mg hardness tests
HI 93719-03 300 Mg hardness tests
HI 93720-01 100 Ca hardness tests
HI 93720-03 300 Ca hardness tests
HI 93721-01 100 iron HR tests
HI 93721-03 300 iron HR tests
HI 93722-01 100 cyanuric acid tests
HI 93722-03 300 cyanuric acid tests
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HI 93723-01 100 chromium VI HR tests
HI 93723-03 300 chromium VI HR tests
HI 93726-01 100 nickel HR tests
HI 93726-03 300 nickel HR tests
HI 93728-01 100 nitrate tests
HI 93728-03 300 nitrate tests
HI 93729-01 100 fluoride tests
HI 93729-03 300 fluoride tests
HI 93730-01 100 molybdenum tests
HI 93730-03 300 molybdenum tests
HI 93731-01 100 zinc tests
HI 93731-03 300 zinc tests
HI 93732-01 100 dissolved oxygen tests
HI 93732-03 300 dissolved oxygen tests
HI 93733-01 100 ammonia HR tests
HI 93733-03 300 ammonia HR tests
HI 93734-01 100 free & total chlorine HR tests
HI 93734-03 300 free & total chlorine HR tests
HI 93735-00 100 total hardness LR tests
HI 93735-01 100 total hardness MR tests
HI 93735-02 100 total hardness HR tests
HI 93735-0 100 total hardness (LR, MR, HR) tests
HI 93737-01 50 silver tests
HI 93737-03 150 silver tests
HI 93738-01 100 chlorine dioxide tests
HI 93738-03 300 chlorine dioxide tests
HI 93740-01 50 nickel LR tests
HI 93740-03 150 nickel LR tests
HI 93746-01 50 iron LR tests
HI 93746-03 150 iron LR tests
HI 93747-01 100 copper LR tests
HI 93747-03 300 copper LR tests
HI 93748-01 50 manganese LR tests
HI 93748-03 150 manganese LR tests
HI 93749-01 100 chromium VI LR tests
HI 93749-03 300 chromium VI LR tests
HI 93754A-25 25 COD vials
HI 93754B-25 25 COD vials
HI 93754C-25 25 COD vials
OTHER ACCESSORIES
C115-00300 5 mL graduated syringe
HI 721310 9V battery (10 pcs)
HI 731318 Tissue for wiping cuvets (4 pcs)
HI 731321 Glass cuvets (4 pcs)
HI 731325N New cap for cuvet (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
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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 740219 COD adapter
HI 740220 25 mL glass cylinders with caps (2 pcs)
HI 92000 Windows ® Compatible Software
HI 920010 PC connection cable
HI 93703-50 Cuvets cleaning solution (230 mL)
All Hanna Instruments meters are warranted for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions.
This warranty is limited to repair or replacement free of charge .
Damages due to accidents, misuse, tampering or lack of prescribed maintenance are not covered.
If service is required, contact the dealer from whom you purchased the instrument. 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.
Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice.
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Recommendations for Users
Before using these products, make sure that they are entirely suitable for the environment in which they are used.
Operation of these instruments in residential area could cause unacceptable interferences to radio and
TV equipments, 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 perform any measurement in microwave ovens.
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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
• Thermometry 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.
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W W W . H A N N A I N S T . C O M
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