Hanna Instruments | HI83414-01 | Owner Manual | Hanna Instruments HI83414-01 Owner Manual

Hanna Instruments HI83414-01 Owner Manual
Instruction Manual
HI83414
Turbidity and Free/
Total Chlorine Meter
www.hannainst.com
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Dear Customer,
Thank you for choosing a Hanna Instruments product.
Please read this instruction manual carefully before using this instrument.
This manual will provide you with the necessary information for correct use of this instrument, as
well as a precise idea of its versatility.
If you need additional technical information, do not hesitate to e‑mail us at tech@hannainst.com
or view our worldwide contact list at www.hannainst.com.
WARRANTY
HI83414 is guaranteed for two years against defects in workmanship and materials when used for
its intended purpose and maintained according to instructions. Electrodes and probes are guaranteed
for six months. This warranty is limited to repair or replacement free of charge.
Damage due to accidents, misuse, tampering or lack of prescribed maintenance is not covered.
If service is required, contact your local Hanna Instruments Office. If under warranty, report the
model number, date of purchase, serial number and the nature of the problem. 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
Technical Service department and then send it with shipping costs prepaid. When shipping any
instrument, make sure it is properly packed for complete protection.
To validate your warranty, fill out and return the enclosed warranty card within 14 days from the
date of purchase.
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.
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TABLE OF CONTENTS
WARRANTY.............................................................................................................................2
PRELIMINARY EXAMINATION....................................................................................................4
GENERAL DESCRIPTION............................................................................................................5
ABBREVIATIONS......................................................................................................................6
PRINCIPLE OF OPERATION........................................................................................................6
FUNCTIONAL DESCRIPTION.......................................................................................................9
SPECIFICATIONS....................................................................................................................11
GENERAL TIPS FOR AN ACCURATE MEASUREMENT................................................................... 12
START UP.............................................................................................................................20
RANGE SELECTION.................................................................................................................20
TUTORIAL MODE....................................................................................................................21
HELP MODE..........................................................................................................................21
MEASUREMENT PROCEDURE FOR RATIO/NON RATIO TURBIDITY RANGE ................................... 22
CALIBRATION PROCEDURE FOR RATIO/NON RATIO TURBIDITY RANGE........................................ 25
MEASUREMENT PROCEDURE FOR FREE/TOTAL CHLORINE......................................................... 29
CAL CHECK PROCEDURE FOR FREE/TOTAL CHLORINE................................................................ 32
CALIBRATION PROCEDURE FOR FREE/TOTAL CHLORINE............................................................. 34
RESTORE FACTORY CALIBRATION............................................................................................35
GOOD LABORATORY PRACTICE (GLP)........................................................................................ 36
LOG AND LOG RECALL.............................................................................................................37
SETUP..................................................................................................................................38
LAMP REPLACEMENT..............................................................................................................41
FUSE REPLACEMENT..............................................................................................................41
PC INTERFACE.......................................................................................................................42
ACCESSORIES........................................................................................................................42
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PRELIMINARY EXAMINATION
Please examine this product carefully. Make sure that the instrument is not damaged. If any damage
occurred during shipment, please contact your local Hanna Instruments Office.
Each HI83414 Bench Turbidity and Free/ Total Chlorine instrument is supplied complete with:
• Five Sample Cuvettes and Caps
• Calibration Cuvettes for turbidimeter and colorimeter (HI83414-11)
• Silicone Oil (HI93703-58)
• Cloth for wiping the cuvettes
• Scissors
• Power cord
• Instruction Manual
• Instrument Quality Certificate
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.
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GENERAL
DESCRIPTION
GENERAL DESCRIPTION
HI83414 is a high accuracy, combined meter with technology that benefits from Hanna Instruments’
years of experience as manufacturer of analytical instruments.
The HI83414 successfully combines turbidity and colorimetric measurements to meet the needs of
measuring the most important parameters of drinking water: turbidity and free/ total chlorine. The
meter is especially designed for water quality measurements, providing reliable and accurate readings
on low turbidity and chlorine values. The HI83414 meets and exceeds the requirements of USEPA
and Standard Methods both for turbidity and colorimetric measurements.
The instrument is based on a state-of-the-art optical system which guarantees accurate results, assures
long term stability and minimizes stray light and color interferences. It also compensates for variations
in intensity of the lamp, so there’s no need for frequent calibration. The 525 nm interference filter of
the colorimeter assures precise and repeatable results.
The 25 mm round cuvettes made from special optical glass guarantee the repeatability of the
measurements.
Turbidity measurements can be made in the 0.00 to 4000 NTU (Nephelometric Turbidity Units) range
when ratiometric measurements are used and in the 0.00 to 40.0 NTU range when non ratio method
is used. The instrument has an EPA compliance reading mode which rounds the reading to meet EPA
reporting requirements. Alternative EBC and Nephelos measuring units are available.
Depending on the measured sample and needed accuracy, normal measurement, continuous measu‑
rement or signal averaging measurement can be selected.
A two, three, four or five-point calibration can be performed by using the supplied (<0.1, 15, 100,
750 and 2000 NTU) standards. When user prepared standards are used, the calibration points can
be edited.
Free or Total Chlorine measurements can be made in the 0.00 to 5.00 mg/L (ppm) range.
With the powerful CAL Check™ function, the performance of the instrument can be validated at any
time by using the exclusive Hanna ready-made, NIST traceable standards.
A one-point calibration can be performed using the same cal check standard.
HI83414 has complete G.L.P. (Good Laboratory Practice) functions that allow traceability of the
calibration conditions. The last calibration points, time and date can be checked.
HI83414 has a user-friendly interface with an easy to understand, graphic LCD. All messages are in
plain text, easy to read and understand. Comprehensive contextual help is available at a simple key
press. All help information and messages are available in several languages. Confirmation and error
acoustic signals help the user during instrument operation. Furthermore, a tutorial mode of operation
guides the user step by step through the analytical process.
The instrument’s logging function offers complete information for all measurements.
Up to 200 measurements can be stored in the internal memory and consulted at any time. In order
to further store or analyse, the data can be downloaded to a PC using the USB port.
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ABBREVIATIONS
NTU
JTU
FTU
USEPA
LCD
Nephelometric Turbidity Units
Jackson Turbidity Units
Formazin Turbidity Units
US Environmental Protection Agency
Liquid Crystal Display
RTC
RH
ID
EBC
Real Time Clock
Relative Humidity
Identification
European Brewery Convention
PRINCIPLE OF OPERATION
TURBIDIMETER
Turbidity is the optical property that causes light to be scattered and absorbed, rather than transmitted.
The scattering of the light that passes through a liquid is primarily caused by the suspended solids.
The higher the turbidity, the greater the amount of scattered light. Because even the molecules in a
very pure fluid scatter light to a certain degree, no solution will have zero turbidity.
The USEPA Method 180.1 specifies the key parameters for the optical system to measure turbidity
for drinking, saline and surface water, in a 0 to 40 NTU range, using the nephelometric method.
The HI83414 instrument is designed to meet or exceed the criteria specified by the USEPA Method
180.1 and Standard Method 2130 B.
The light beam that passes through the sample is scattered in all directions. The intensity and pattern
of the scattered light is affected by many variables like wavelenght of the incident light, particle size
and shape, refractive index and color.
The optical system includes a tungsten filament lamp, a scattered light detector (90°) and a transmitted
light detector (180°).
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For the ratio turbidimeter range, the microprocessor of the instrument calculates the NTU value, from
the signals that reach the two detectors, by using an effective algorithm. This algorithm corrects and
compensates for interferences of color, making the HI83414 instrument color-compensated. The optical
system and measuring technique compensate also for the lamp intensity fluctuations, minimizing the
need of frequent calibration.
For the non ratio turbidimeter range, the NTU value is calculated from the signal on the scattered light
detector (90°). The method offers a high linearity on the low range. The method is more sensitive to
the lamp intensity fluctuations.
The lower detection limit of a turbidimeter is determined by the so called “stray light”. Stray light
is the light detected by the sensors that is not caused by light scattering from suspended particles.
The optical system of HI83414 instrument is designed to have very low stray light, providing accurate
results for low turbidity samples. However, special care must be taken when measuring low turbidities
(see page 12 “General Tips for an Accurate Measurement” for sample preparation and measuring
techniques).
MEASUREMENT UNITS
The most used units for turbidity are NTU (Nephelometric Turbidity Units). In the beer industry a
common unit is EBC (European Brewery Convention).
The HI83414 turbidimeter reports the measurements in NTU, EBC or Nephelos. One NTU is equal
with 0.245 EBC or 6.7 Nephelos.
Calibration and measurements are done only in NTU and the results in other units are obtained by
multiplying with the respective factors.
COLORIMETER
Absorption of light is a typical phenomenon of interaction between electromagnetic radiation and
matter. When 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 absorbed light depends both on the optical path length
through the matter and on the physical-chemical characteristics of the substance, according to the
Lambert-Beer law:
–log I/Io = ελ c d
or
A = ελ c d
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Where:
–log I/Io = Absorbance (A)
Io = intensity of incident light beam
I = intensity of light beam after absorption
ελ = molar extinction coefficient at wavelength λ
c
= molar concentration of the substance
d
= optical path through the substance
Therefore, the concentration “c” can be calculated from the absorbance of the substance as the other
factors are known.
Photometric chemical analysis is based on the possibility to develop an absorbing compound from a
specific chemical reaction between sample and reagents. Given that the absorption of a compound
strictly depends on the wavelength of the incident light beam, a narrow spectral bandwidth should
be selected as well as a proper central wavelength to optimize measurements.
The optical system is based on the turbidimeter tungsten lamp and a separate detector with a narrow
band interference filter @525 nm to guarantee both high performance and reliable results for
colorimetric measurements.
The measurement process is carried out in two phases: first the instrument is zeroed and then the
actual measurement is performed.
In this way the cuvette and the water turbidity are compensated during the zero mesurement phase.
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FUNCTIONAL DESCRIPTION
INSTRUMENT DESCRIPTION
1)
2)
3)
4)
5)
6)
7)
8)
Liquid Crystal Display (LCD). The LCD has backlight for better visibility in dark environments.
Keypad. Splash resistant.
Cuvette Lid. Close the cuvette lid prior to start a measurement.
Lamp lid
USB connector
Fuse holder
Mains switch
Mains connector
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DISPLAY DESCRIPTION
The display contains the following fields:
1)
2)
3)
4)
5)
6)
The current time in selected format
Information related to the measurement
Functional keys
Currently selected parameter
Measuring units
Measured value
KEYBOARD DESCRIPTION
The keyboard contains 8 direct keys and 3 functional keys with the following functions:
The function of each of the three functional keys depends on the name displayed on
the LCD above them.
Press to return to the main screen.
When in the main screen, press to access the change parameter screen.
Press to move up in menu and help or to increment a set value.
Press to move down in menu and help or to decrement a set value. Press to log the
current reading.
Press to access calibration menu.
Press to recall the log.
Press to display the help screen.
Press to access the setup menu.
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SPECIFICATIONS
Turbidity
Range - non ratio mode
0.00 to 9.99; 10.0 to 40.0 NTU
0.0 to 99.9; 100 to 268 Nephelos
0.00 to 9.80 EBC
Resolution - non ratio mode
0.01; 0.1 NTU
0.1; 1 Nephelos
0.01 EBC
Range - ratio mode
0.00 to 9.99; 10.0 to 99.9; 100 to 4000 NTU
0.0 to 99.9; 100 to 26800 Nephelos
0.00 to 9.99; 10.0 to 99.9; 100 to 980 EBC
Resolution - ratio mode
0.01; 0.1; 1 NTU
0.1; 1 Nephelos
0.01; 0.1, 1 EBC
Range selection
Automatically
Accuracy ±2% of reading plus 0.02 NTU (0.15 Nephelos; 0.01 EBC)
±5% of reading above 1000 NTU (6700 Nephelos; 245 EBC)
Repeatibility
±1% of reading or 0.02 NTU (0.15 Nephelos; 0.01 EBC)
whichever is greater
Stray Light
< 0.02 NTU (0.15 Nephelos; 0.01 EBC)
Light Detector
Silicon Photocell
Method
Nephelometric method (90°) or Ratio Nephelometric Method
(90° & 180°), Adaptation of the USEPA Method 180.1 and
Standard Method 2130 B.
Measuring mode
Normal, Average, Continuous.
Turbidity Standards
<0.1, 15, 100, 750 and 2000 NTU
Calibration
Two, three, four or five-point calibration
Free and total Chlorine
Range Free Cl2
Total Cl2
Resolution
Accuracy
Detector
Method
0.00 to 5.00 mg/L
0.00 to 5.00 mg/L
0.01 mg/L from 0.00 to 3.50 mg/L; 0.10 above 3.50 mg/L
±0.02 mg/L @ 1.00 mg/L
Silicon photocell with 525 nm narrow band interference filters
Adaptation of the USEPA Method 330.5 and Standard Method
4500-Cl G. The reaction between chlorine and DPD reagent
causes a pink tint in the sample.
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Standards
Calibration
1 mg/L free chlorine, 1 mg/L total chlorine
One-point calibration
Other
Light Source
Lamp life
Display
LOG Memory
Serial Interface
Environment
Power supply
Dimensions
Weight
Tungsten filament lamp
greater than 100,000 readings
40 x 70 mm graphic LCD (64 x 128 pixels) with backlight
200 records
USB
0 °C (32 °F) to 50 °C (122 °F); max 95% RH non-condensing
230 V/50 Hz or
115 V/60 Hz 20 W
230 x 200 x 145 mm (9 x 7.9 x 5.7”) L x W x H
2.5 Kg (88 oz.)
GENERAL TIPS FOR AN ACCURATE MEASUREMENT
HI83414 is a highly accurate combined meter for turbidity and free & total chlorine. To meet the
instrument’s performance and fully benefit from its features, it is very important for the analyst to
use proper measurement techniques for accurate, precise and repeatable readings. Special care must
be taken during sample preparation and handling. The instructions listed below should be carefully
followed during measuring and calibration to ensure best accuracy.
GENERAL RULES
• Always put the instrument on a flat, rugged surface when taking measurements.
• Do not operate in direct sunlight.
• Keep the lid of the instrument closed when it is not used to prevent dust or dirt entering inside.
• Always close the lid of the instrument during measurement.
• Never use cuvettes with scratches or cracks because they can cause inaccurate readings.
• Always cap the cuvettes to avoid spillage of the sample into the instrument.
• Do not use too much oil to prevent contamination of the optical system.
• If possible use indexed and matched cuvettes.
• If possible use the same cuvette for zero and read for Free and Total Chlorine measurements.
CUVETTE
The cuvette is part of the optical system in all measurements. The light reaches the sample by passing
through the cuvette glass. As a result, the measurement can be affected by the glass imperfections,
dirt, dust, scratches, or fingerprints present on the cuvette surface. Special care must be taken in
preparing and handling the cuvette.
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Note: In colorimetric measurements, when it is possible, use the same cuvette both for zeroing and
measurement. If this is not possible, always match the cuvettes.
In turbidimetric measurements, if you are using multiple cuvettes, always match the cuvettes.
CUVETTE HANDLING
The cuvettes should be free of scratches or cracks. Any cuvette with visible scratches should be
discarded. The cuvettes should be periodically washed with acid. After washing, the cuvettes should
be well rinsed multiple times with distilled or deionized water. Allow cuvettes to air-dry and store
them for long periods of time with caps, to avoid dirt entering inside. Always handle the cuvette
by touching only the cap or its top side (over the horizontal line).
Always store the cuvettes in separate boxes or with separators between them to avoid scratches
on the surface.
CUVETTE PREPARATION
Whenever a cuvette is used, it must be clean inside and outside. When it is placed into the instrument,
it must be dry outside, completely free of fingerprints or dirt.
If the cuvette is not indexed, put the cuvette with the factory mark aligned with the sign on the
instrument top.
CUVETTE OILING (TURBIDITY only)
Warning: For colorimetric measurements the cuvette should be completely free of any trace of oil.
Do not use the oiling procedure for colorimetric measurements.
To hide minor imperfections and scratches, the cuvettes should be oiled outside with the supplied
silicone oil. This is very important, especially for low turbidity samples (< 1 NTU), otherwise scratches
can contribute and alter turbidity readings.
The silicone oil has the same refractive index as the glass and will not alter the turbidity readings. It
is important to apply only a thin layer of silicone oil.
Warning: Do not apply silicone oil in excess because it may retain dirt or contaminate the cuvette
holder of the instrument, altering the turbidity readings.
It is very important to apply the silicone oil on a clean, dry cuvette. Apply a few drops of oil and wipe
the cuvette thoroughly with a lint-free cloth. Wipe off the excess oil till you obtain a thin, uniform
layer. If the procedure is correctly followed, the cuvette should appear nearly dry with no visible oil.
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Note: The supplied cloth for oiling should be stored together with the silicone oil bottle and cuvettes,
taking care to avoid contamination with dirt. After a few oiling procedures, the cloth will contain
enough oil to wipe the bottle with it without adding more oil. From time to time add some
drops of oil on the cuvette to provide the necessary oil quantity in the cloth.
INDEXING A CUVETTE
It is very important for low turbidity readings to always insert the cuvette into the instrument in
the same position.
All cuvettes are factory indexed. This index can be used to put the cuvette with the factory mark on
the cuvette aligned with the sign on the instrument top.
To further reduce the effect of glass imperfections, the cuvette can be indexed and use this new index
as the position mark.
For indexing one cuvette or matching multiple cuvettes, the continuous reading mode is suggested.
In this mode multiple successive readings are taken without turning off the lamp. The turbidity is
immediately displayed, reducing considerably the measurement time.
Note: The instrument can not perform continuous readings if the average mode is on.
In order to index a cuvette follow the next steps:
• Fill the cuvette with high quality water (<0.1 NTU)
up to the 10 mL mark.
• Clean and oil the cuvette as described before.
• Turn the instrument ON.
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• Insert the cuvette into the instrument and press
the Read key. Record the reading.
• Open the instrument lid, slightly rotate the
cuvette and take a new reading.
• Repeat the last step until you read the lowest
NTU value.
• Alternatively, keep the Read key pressed to
make continuous readings. After the first value
is displayed, open the lid and start rotating the
cuvette until the lowest NTU value is displayed.
• Mark this position on the thicker white band
on the top of the cuvette with a water resistant
pencil.
• Always use this position to align it with the sign
on the instrument top.
MATCHING MULTIPLE CUVETTES
Precise measurements require the use of a single cuvette. If it is not possible, cuvette selection and
matching must be performed before taking measurements.
In order to match multiple cuvettes follow the
next steps:
• Fill some cuvettes with high quality water
(<0.1NTU) up to the 10 mL mark.
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• Clean and oil the cuvettes as described before.
• Turn the instrument ON.
• Insert the first cuvette into the instrument and press the
Read key. Record the reading.
• Mark this position on the thicker white band on the top of
the cuvette with a water resistant pencil.
• Insert the second cuvette into the instrument and take a
reading.
• Open the instrument lid, slightly rotate the cuvette and
take a new reading.
• Repeat the last step for the second cuvette until the
reading is within 0.01 NTU of the value obtained for the
first cuvette.
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• Alternatively, keep the Read key pressed and, after the first value is displayed, open the lid and
start rotating the cuvette until the read value matches the first cuvette.
• Mark this position on the second cuvette with a water resistant pencil.
• Follow the same procedure for all the cuvettes you need.
Note: If the cuvette is indexed, use the index to position it in the instrument.
SAMPLING TECHNIQUE
When taking turbidity measurements it is very important to select a representative sample. For
consistent results, follow the next tips when sampling:
• Gently mix the water before taking the sample.
• If the sample is taken from a pipe, discard the first few liters.
• If measuring a non uniform source, collect samples from different places and mix them.
When measuring the collected sample, keep in mind the following:
• Samples should be analyzed immediately after collection because the turbidity can change in time.
• To avoid dilution of the sample it is better to rinse the cuvette with a quantity of sample and then
discard. Only after this should you fill the cuvette with sample.
• Pay attention that cold samples do not condense on the sample cell.
REMOVING AIR BUBBLES (TURBIDITY only)
Any air bubbles present in the sample will cause high turbidity readings. To obtain accurate
measurements, remove the air bubbles using one of these methods:
• Application of a partial vacuum;
• Addition of a surfactant, such as Triton X-100;
• Use of an ultrasonic bath;
• Heating the sample.
Sometimes it is necessary to combine two or more methods for efficient air bubble removal.
Note: Each method can alter the sample turbidity if misused, so they have to be used with caution.
APPLICATION OF VACUUM
Vacuum works by decreasing the atmospheric pressure. In this way the bubbles from the solution
come out to the surface. Application of vacuum is a very simple procedure and can be applied with
any vacuum source at hand. The simplest equipment at hand is a syringe and a rubber stopper for
vacuum degassing.
Notes: • The vacuum equipment must be clean and oil-free.
• It is not recommended to apply a vacuum to a viscous sample that contains volatile
components. In such cases the vacuum can cause the volatile component of the viscous
sample to increase the bubbles from the sample.
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ADDITION OF SURFACTANT
A surfactant addition works by changing the surface tension of the water. In this way bubbles are
released from the sample. This method is effective in samples that are supersaturated with air.
The procedure consists in the addition of a drop of surfactant in the cuvette before adding the sample
to be analyzed.
A convenient surfactant to use for degassing is Triton X-100.
Warning: Changing the surface tension will cause a rapid settling of particles that cause turbidity.
To avoid this problem, analyze the sample as soon as possible.
Do not shake the sample vigorously because the surfactant may foam. If you are using the same
cuvette, rinse it before adding a new sample in order to avoid surfactant accumulation.
Surfactant contribution to the turbidity readings is negligible.
Note: Surfactant addition should be used for degassing only when other methods are ineffective.
USE OF AN ULTRASONIC BATH
Ultrasonic waves are very effective in removing air bubbles from samples. However, ultrasonic waves
should be used with care because they can alter sample turbidity characteristics by modifying the
shape and size of particles which cause turbidity. The ultrasonic waves can also break the existing air
bubbles, leading to a complication of the degassing process.
In order to avoid excess application of the ultrasonic waves you can apply ultrasound until all visible
air bubbles are removed, and then measure the sample turbidity. This is the most common procedure
for degassing.
If you are not sure that all air bubbles were removed, apply ultrasonic waves again for a short period
of time and then measure the turbidity. Repeat this procedure until the turbidity is increasing instead
of decreasing, a sign that turbidity of the sample was altered.
In order to degas a sample fill a clean cuvette with sample and immerse it (1/2 to 2/3 immersed)
in an ultrasonic bath. Follow the degassing procedure described above. Only after the degassing
procedure is finished can the cuvette be capped.
HEATING THE SAMPLE
Use of heat to remove air bubbles, although very effective in some cases, should be handled with
care because it can alter the turbidity of the sample. When heating a sample, the volatile components
from the sample can vaporize, the suspended components can dissolve or the sample characteristics
can change.
Therefore, the heating procedure should be used with extreme care.
The best way is to use a warm water bath and immerse the cuvette with sample into the bath. Heat
the sample only until the visible bubbles are removed.
Note: Always cool the heated sample to the original sample temperature before measurement.
The heating procedure can be used in combination with vacuum or ultrasonic wave application for a
more effective air bubble removal.
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ADDING REAGENT (COLORIMETRY only)
• Because the reagent quantity is set up to react with 10 mL of
sample, it is very important to fill the cuvette correctly. The liquid
in the cuvette forms a meniscus; the bottom of the meniscus must
be at the same level with as the 10 mL mark.
• To open the powder reagent pack:
a) use scissors to open the powder packet
b) push the edges of the packet to form a spout
c) pour the contents of the packet
• Do not let the reacted sample stand too long after reagent is added or accuracy will be lost.
• All the reaction times reported in this manual were recorded at 20 °C (68 °F). As a general rule
of thumb, they should be doubled at 10 °C (50 °F) and halved at 30 °C (86 °F).
• Insert the cuvette with the mark aligned with the mark on the instrument top.
• It is possible to take multiple readings in a row but it is recommended to take a new zero reading
for each sample and to use the same cuvette for zeroing and measurement.
• After the reading, it is important to discard the sample immediately, otherwise the glass might
become permanently stained.
Note: In order to maximize accuracy prior to a measurement, follow the validation procedure to be
sure that the instrument is properly calibrated. If necessary, calibrate the instrument.
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START UP
The HI83414 Turbidity / Free & Total Chlorine benchmeter is supplied with all necessary accesories
for making measurements.
Unpack the instrument and place it on a flat surface. Do not place the instrument under direct sunlight.
Connect the instrument to the mains with the provided power cord. Pay attention that the mains voltage
match the value printed on the back of the instrument.
Switch on the instrument. On the LCD, the Hanna Instruments Logo will appear for a short time,
followed by the main screen for ratio turbidity measurements.
The instrument loads the selected language. If no language can be loaded, the instrument will work
in the “safe mode”. In “safe mode” all the messages are displayed in English and tutorial and help
information are not available.
RANGE SELECTION
The HI83414 instrument has four measuring
ranges: Ratio Turbidity, Non Ratio Turbidity, Free
Chlorine, Total Chlorine. When the instrument is
in the main screen, the selected range is displayed
on the right side of the LCD, on the message line.
To change the range, press the RANGE key.
When the display shows the Change parameter
screen, press  or  keys until the new range
is highlighted.
Press CFM key to select the new range.
The instrument returns to the main screen.
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TUTORIAL MODE
The HI83414 has a unique Tutorial Mode that provides additional information to help the inexperienced
user during the measurements. The instruments display a screen, with explanations and confirmation
button, each time when a preparation or other operation has to be performed by the operator. The
instrument resumes the measuring sequence when the operator confirms that the requested operation
was done.
To disable this mode, when in the main screen,
press the SETUP key to enter the setup, and
then press  key until the “Tutorial” line is
highlighted. Press the Disable key and then press
ESC to return to the main screen.
HELP MODE
The HI83414 offers an interactive contextual help mode that assists the user at any time.
To access help screens, just press HELP.
Depending which menu you are in, a screen with additional
information will appear. To read all available information, scroll
down or up using the / keys.
Press the Support key to access a page with Hanna Instruments
support centers and their contact details.
Press the Accessories key to access a page with instrument
accessories.
To exit support or accessories screens press ESC and the instru‑
ment will return to the previous help screen.
To exit help mode just press the HELP key again and the meter will display the previously selected
screen.
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MEASUREMENT PROCEDURE FOR RATIO /
NON RATIO TURBIDITY RANGE
When taking turbidity measurements, several basic rules should be followed:
• Never use cuvettes with scratches or cracks because they can cause inaccurate readings.
• Always cap the cuvettes to avoid spillage of the sample into the instrument.
• Always close the lid of the instrument during measurement.
• Do not use too much oil to prevent contamination of the optical system.
To take turbidity measurements, follow the next steps:
• Turn the instrument ON by pressing ON/OFF.
When dashes are displayed on the LCD, the
instrument is ready. The current time appears
on the upper left corner of the display and the
range name appears on the lower right corner.
• Fill a clean, dry cuvette with 10 mL of sample up
to the mark, taking care to handle the cuvette
by the top.
• Replace the cap.
• Wipe the cuvette thoroughly with a lint-free
cloth to remove any fingerprints, dirt or water spots.
• Apply silicone oil on the cuvette and wipe with
a lint-free cloth to obtain an even film over the
entire surface of the cuvette.
Note: It is very important to oil the cuvette,
especially for low turbidity values (< 1
NTU) to hide the glass imperfections which
can influence the reading.
• Place the cuvette into the instrument. Align
the mark from the cuvette with the sign on the
instrument top.
• Close the lid.
Note: If you have a cuvette with indexing mark,
place the cuvette into the instrument with
the indexing mark aligned with the sign on
the instrument top.
22
NORMAL MEASUREMENT
This type of measurement is best suited for regular readings, when the sample is stable and normal
accuracy is required. In normal mode, the measurement takes about 10 seconds and the lamp is ON
for a minimum period of time (about 7 seconds).
• Press the Read key to take the measurement.
The display will show “READ” in the left side
and blinking dashes. The dashes and lamp
icon will appear during different measurement
phases.
• The result is displayed in the selected units.
CONTINUOUS MEASUREMENT
This measurement mode is suitable when many measurements have to be taken in a short period of
time. The mode is useful to evaluate a very fast settling sample. This measurement mode is recom‑
mended for indexing cuvettes.
• Press the Read key and keep it pressed to take continuous readings.
The display will show “READ” in the left side and blinking dashes. The dashes and lamp icon will
appear during different measurement phases. The first value is displayed after 10 seconds and then
a new reading is displayed each second as long as the Read key is kept pressed. When a new value
is displayed, the measurement value will briefly blink.
The last value remains on the display after the Read key is released.
AVERAGED MEASUREMENT
This measurement mode is useful when samples that cause unstable readings are analyzed. By
averaging several readings, noise effect is reduced and accurate measurements can be taken.
This mode can also be selected when high accuracy measurements are needed. In the average mode
10 measurements are averaged in a short period of time (about 20 seconds).
To use the averaged reading mode first enter setup and enable the Average reading mode. The “AVG”
text will be displayed in the left side of the screen.
• Press the Read key to take the measurement.
The display will show “READ” in the left side and
blinking dashes. The icon for lamp will appear during
different measurement phases. The first value is
displayed after 10 seconds and then a new average
of the available readings is displayed each second.
When a new value is displayed, the measurement
value will blink briefly. The last averaged value re‑
mains on the display at the end of the measurement.
23
HI83414 automatically selects the correct
turbidity range to display the results with the
highest accuracy. If the measured value is
higher than 4000 NTU (980 EBC or 26800
Nephelos), the display will show the maximum
value blinking and the message “Out of range”
on the message line.
UNITS CHANGE
To change the units, simply press the Unit key when a measurement is available. The Nephelos
value is obtained by multiply with 6.7 the NTU value. The EBC value is obtained by multiply with
0.245 the NTU value.
EPA MODE
To round the readings as EPA specifications press the
EPA key. The “EPA” text is displayed on the left side
of the LCD and the reading is rounded as follows:
NTU
Round to Nearest
0.0-1.0
0.05
1-10
0.1
10-40
1
40-100
5
100-400
10
400-1000
50
>1000
100
24
CALIBRATION PROCEDURE FOR RATIO /
NON RATIO TURBIDITY RANGE
HI83414 has a powerful calibration function that compensates for lamp aging or changing. The
calibration can be done using the supplied calibration solutions or user prepared standards. HI83414
turbidimeter is supplied with 5 AMCO standards: <0.1 NTU, 15 NTU, 100, 750 NTU and 2000 NTU.
The Hanna Instruments standards are specially designed for this instrument. Turbidity standards have
a shelf life and should not be used after the expiration date. Alternatively, formazin standards can
be used. It is recommended that the turbidity value of the prepared calibration solutions to be close
to the default calibration points.
The first calibration point should be near 0 NTU, the second point can be chosen between 10 and
20 NTU, the third point between 50 and 150 NTU, the fourth point between 600 and 900 NTU and
the fifth point between 1500 and 2500 NTU.
FORMAZIN PREPARATION
In order to prepare formazin 4000 NTU stock solution, follow the next procedure:
Solution I : Dissolve 1.000 grams of hydrazine sulfate, (NH2)2 H2SO4, in distilled, deionized water and
dilute to 100 mL in a volumetric flask.
Warning: Handle hydrazine sulfate with care because it is a carcinogen reagent. Avoid inhalation,
ingestion, or skin contact. Formazin solution can also contain some hydrazine traces.
Solution II : Dissolve 10.000 grams of hexamethylenetetramine, (CH2)6N4, in distilled, deionized water
and dilute to 100 mL in a volumetric flask.
Stock solution: Mix 10 mL Solution I and 10 mL Solution II in a flask. Let the stock solution stand
48 hours at 25 ±3 °C (77 ±5 °F). This will result in a 4000 NTU formazin suspension. It is very
important for the formation of the formazin polymer to maintain the same temperature.
The stock solution (4000 NTU) can be stored up to one year in proper conditions. Store formazin in
amber glass bottle or any UV-light blocking bottle.
To obtain high quality formazin always use pure reagents and high-purity water.
To prepare the calibration standards, dilute the stock solution with the same high-purity water you
used for the preparation of the stock solution. The diluted formazin solutions are not stable. They
should be used immediately after preparation and discarded immediately after use.
CALIBRATION
For best results, the measurement techniques must be followed during calibration. If formazin standards
are used, mix the cuvettes gently for about 1 minute and then allow the standard to settle for 1 more
minute before calibration.
Calibration can be performed in two, three four or five points. Calibration of the turbidity range will
not affect the free or total chlorine measurements.
Before making the calibration, be sure that you are in the correct range.
25
To enter calibration, press the CAL CHECK key whi‑
le in main screen. The first screen of GLP information
is displayed. Press the Cal key to start calibration.
It is possible to interupt calibration procedure at any
time by pressing the CAL CHECK key .
TWO-POINT CALIBRATION (Ratio and Non Ratio Turbidity)
• The first calibration point is displayed on the LCD as
0.00 NTU. This point is used to check the quality of the
water used for dilution and to confirm that the optical
system is not dirty. If the value of the first point is over
0.15 NTU, a warning “Cal Point1 high !” is displayed
when the calibration is saved and a warning “Out of
calibration range” is displayed when measurements
under 10.0 NTU are performed.
Note: The reading of the first point can be skipped by
pressing the Skip key. In this case, the 0.00 NTU
point will be used for calibration.
• Place the <0.1 NTU standard cuvette (or the
cuvette with dilution water) into the holder and ensure
that the cuvette mark is aligned with the sign on the
instrument top.
• Close the lid and press the Read key. The display
will show the value blinking and the lamp icon during
measurement.
Note: If the Average mode was previously selected,
the measurement in calibration mode will be
done using the average.
• At the end of the measurement, the second proposed
calibration point (15.0 NTU) is displayed.
• Remove the first standard cuvette.
• Place the 15 NTU standard cuvette (or the second
formazin prepared standard) into the holder, with the
cuvette mark aligned with the sign on the instrument
top.
Note: If necessary, press  or  keys to edit each
calibration point value to match the exact value
of the standard as measured with a reference
turbidimeter.
26
• Close the lid and press the Read key. The display
will show the value blinking and the lamp icon during
measurement.
• If Non ratio Turbidity range is selected, the display
will briefly show “Store...” and the two point calibra‑
tion is saved. The instrument returns in the main screen.
• If Ratio Turbidity range is selected, at the end of
the measurement, the third proposed calibration point
(100 NTU) is displayed.
• At this moment it is possible to exit calibration by pressing the End key.
• If the calibration is terminated, the display will briefly show “Store...” and the two point calibration
is saved. The instrument returns in the main screen.
THREE-POINT CALIBRATION (Ratio Turbidity only)
To perform a three-point calibration, continue the
procedure with the following steps:
• Remove the second standard cuvette.
• Place the 100 NTU standard cuvette (or the third
prepared formazin standard) into the holder, with the
cuvette mark aligned to the sign on the instrument top.
• Close the lid and press the Read key. The display
will show the value blinking and the lamp icon during
measurement.
• At the end of the measurement, the fourth proposed
calibration point (750 NTU) is displayed.
• At this time it is possible to exit calibration by pressing
the End key.
• If the calibration is terminated, the display will briefly
show “Store...” and the three point calibration is saved.
The instrument returns in the main screen.
FOUR-POINT CALIBRATION (Ratio Turbidity only)
To perform a four-point calibration, continue the
procedure with the following steps:
• Remove the third standard cuvette.
• Place the 750 NTU standard cuvette (or the fourth
prepared formazin standard) into the holder, with the
cuvette mark aligned to the sign on the instrument top.
27
• Close the lid and press the Read key. The display will show the value blinking and the lamp icon
during measurement.
• At the end of the measurement, the fifth proposed calibration point (2000 NTU) is displayed.
• At this time it is possible to exit calibration by
pressing the End key.
• If the calibration is terminated, the display will
briefly show “Store...” and the four point calibration
is saved. The instrument returns in the main screen.
FIVE-POINT CALIBRATION (Ratio Turbidity only)
To perform a five-point calibration, continue the
procedure with the following steps:
• Remove the fourth standard cuvette.
• Place the 2000 NTU standard cuvette (or the
fourth prepared formazin standard) into the holder,
with the cuvette mark aligned to the sign on the
instrument top.
• Close the lid and press the Read key. The display
will show the value blinking and the lamp icon
during measurement.
• At the end of the measurement, the calibration is
saved and the display will briefly show “Store...”.
The instrument returns in the main screen.
CALIBRATION ERROR MESSAGES
If the value of the standard read during the calibration is too far from the set value, the instrument
will display a standard low or a standard high message.
Check if the correct standard is used or prepare a
fresh standard, if formazine is used, and repeat the
reading of the standard.
If the calculated calibration coefficients are outside
a certain range a calibration error message is
displayed.
28
OUT OF CAL RANGE FUNCTION
The instrument has a mechanism to prevent taking
measurements in a range where the calibration does
not assure the best results. The message “Out of
Calibration Range” is displayed on the message
line in the following situations:
• When the first calibration point is over 0.15 NTU and the reading is under 10 NTU.
• When two point calibration was performed and the reading value is over 40 NTU.
• When a three point calibration was performed and the reading is over 150% of the third point value.
• When a four point calibration was performed and the reading is over 200% of the fourth point value.
MEASUREMENT PROCEDURE FOR FREE/TOTAL CHLORINE
When taking Free or Total Chlorine measurements, several basic rules should be followed:
• Never use cuvettes with scratches or cracks because they can cause inaccurate readings.
• Always cap the cuvettes to avoid spillage of the sample into the instrument.
• Always close the lid of the instrument during measurement.
• If is possible use the same cuvette for zero and sample reading.
To take colorimetric measurements follow next steps:
• Turn the instrument on by pressing ON/OFF.
• Be sure that the correct range is selected (displayed
on the down-right side of the LCD).
Only the Zero key is available, indicating that a zero
measurement should be done.
ZEROING THE INSTRUMENT
• Fill a clean, dry cuvette with 10 mL of sample,
up to the mark, taking care to handle the cuvette
by the top.
• Replace the cap.
• Wipe the cuvette thoroughly with a lint-free cloth
to remove any fingerprints, dirt or water spots.
29
• Place the cuvette into the instrument. Align
the mark on the cuvette with the sign on the
instrument top and close the lid.
• Press the Zero key. The dashes and the lamp
icon will blink on the LCD, depending on the
measurement phase. If the zeroing procedure
was successful, the display will show “-0.0-”.
SINGLE SAMPLE READ
• Remove the cuvette from the instrument.
• Remove the cap.
• Add the content of one packet of the specific
test reagent, for:
Free Chlorine
1 packet of or
HI93701-0
Total Chlorine
1 packet of
HI93711-0
• Replace the cap and shake gently for 20 seconds
(or 2 minutes in case of seawater analysis).
• Replace the cuvette into the holder and ensure
that the mark on the glass matches the mark
on the instrument top.
• Close the lid.
30
• Press the Timer key. The display will show the
stopwatch icon and the countdown prior to
measurement.
Alternatively wait for:
Free Chlorine
Total Chlorine
1 minute
or 2 minutes and 30 seconds
and then just press the Read key. Dashes and
the lamp icon will blink on the LCD, depending
on the measurement phase. The instrument
then displays the concentration in mg/L of free
or total chlorine.
Note: If the value is over range, the maximum value
(5.00 mg/L) will blink and the message “Out
of range” appears on the message line.
MULTIPLE SAMPLES READ
• Place the second cuvette with the reacted sample
into the holder and ensure that the mark on the
glass matches the mark on the instrument top.
• Close the lid.
• Press the Timer key. The display will show
the stopwatch icon and the countdown prior to
measurement.
Alternatively wait for:
Free Chlorine
Total Chlorine
1 minute
or 2 minutes and 30 seconds
and then just press the Read key. Dashes and
the lamp icon will blink on the LCD, depending
on the measurement phase. The instrument
then displays the concentration in mg/L of free
or total chlorine.
Note: It is recommended to zero the meter before
each measurement.
31
INTERFERENCES
The colorimetric measurements are affected by the
following interfering agents:
• Bromine (positive error).
• Chlorine dioxide (positive error).
• Iodine (positive error).
• Oxidized Manganese and Chromium (positive error).
• Alkalinity above 250 mg/L CaCO3 or acidity above 150 mg/L CaCO3 will not reliably develop the
full amount of color or it may rapidly fade. To resolve this, neutralize the sample with diluted HCl
or NaOH.
• In case of water with hardness greater than 500 mg/L CaCO3, shake the sample for approximately
2 minutes after adding the powder reagent.
CAL CHECK PROCEDURE FOR FREE/TOTAL CHLORINE
The HI83414 free and total chlorine colorimeter has a powerful CAL CHECK function that allows the
user to check the instrument calibration against a NIST traceable standard before making a set of
measurements. With the same standard, the instrument could be re-calibrated, if necessary.
Note: Free and total chlorine must be calibrated separately. Calibration of one range will not calibrate
the other range.
VALIDATION PROCEDURE
• Turn the instrument on by toggling ON/OFF switch. When the main screen appears the instrument
is ready.
• Make sure that the correct range is selected free or total chlorine. If necessary, press RANGE to
select the correct range.
• Press the CAL CHECK key and a screen with
GLP information is displayed including the serial
number and the last calibration time.
• Press the Chk key to start the check procedure.
32
• Place the zero cuvette (A) in the instrument
with the mark aligned with the mark on the
instrument top.
• Close the lid
• Press the Zero key. The dashes and the lamp
icon will blink on the LCD, depending on the
measurement phase. If the zeroing procedure
was successful, the display will show “-0.0-”.
• Remove the cuvette.
• Place the CAL Check™ Standard cuvette B into
the holder. Make sure that the mark on the
glass is aligned with the mark on the instrument
top.
• Press the Chk key. The LCD will display dashes
and the lamp icon blinking, depending on the
measurement phase. After a few seconds the
display will show the validation standard value.
The reading should be within specifications as
reported on the CAL Check™ Standard Certificate.
If the value is found out of specifications, please
check that the cuvettes are free of fingerprints, oil
or dirt and repeat validation. If results are still out
of specifications, then recalibrate the instrument.
Warning: Do not validate or calibrate the instrument with standard solutions other than
Hanna Instruments CAL Check™ Standards, otherwise erroneous results will be obtained.
For accurate validation and calibration please perform test at room temperature, 18 to
25 ºC (64.5 to 77.0 ºF).
33
CALIBRATION PROCEDURE FOR FREE/TOTAL CHLORINE
Use the provided standard solution to calibrate the free or total chlorine range of the HI83414. Do
not calibrate the instrument with standard solutions other than Hanna Instruments CAL Check™
Standards, otherwise erroneous results will be obtained. For accurate calibration please perform test
at room temperature, 18 to 25 ºC (64.5 to 77.0 ºF).
To calibrate one range, follow next steps:
• Turn the instrument on by toggling ON/OFF.
When main screen appears, the instrument is
ready.
• Make sure that the correct range is selected free
or total chlorine. If necessary, press RANGE to
select the correct range.
• Press CAL CHECK and then press the Cal key
to start calibration procedure.
• Place the zero cuvette (A) in the instrument with
the mark on the cuvette aligned with the mark
on the instrument top.
• Press the Zero key. The dashes and the lamp
icon will blink on the LCD, depending on the
measurement phase. If the zeroing procedure
was successful, the display will show “-0.0-”.
• Remove the cuvette.
• Place the CAL Check™ Standard Cuvette B into
the holder. Make sure that the mark on the glass
is aligned with the mark on the instrument top.
• Press the Read key. The LCD wil display dashes
and the lamp icon blinking, depending on the
measurement phase. After a few seconds the
display will briefly show the calibration standard
value, store the calibration without warning and
return to the measurement screen.
34
CALIBRATION ERROR MESSAGES
• The calibration is successfully performed
if the reading is in certain limits. If the
CAL Check™ standard value is too high, the
display will show a high standard message.
If this message appears, check if the correct
cuvette was used.
• If the CAL Check™ standard value is too low,
the display will show low standard message.
If this message appears, check if the correct
cuvette was used.
RESTORE FACTORY CALIBRATION
To restore the factory calibration for the
currently selected range, press CAL CHECK key
when in the main screen. The first screen for the
GLP is displayed. Press the Delete key to initiate
the calibration delete procedure and then press the
CFM key to delete the user calibration and restore
the Factory calibration.
Note: Only the user calibration for the current
selected range is deleted.
35
GOOD LABORATORY PRACTICE (GLP)
The HI83414 has built in complete GLP information. The calibration date and the calibration points
are displayed in a comprehensive mode for each range.
To display the GLP information, simply press CAL CHECK key. A screen with instrument serial number
and with information about the calibration is displayed. For further information, press the GLP key.
TURBIDIMETER
For the Turbidimeter, the GLP contains:
• Instrument serial number
• The last user calibration date, in selected
format and time in hh.mm format. If no calibration
was performed, the “Factory Calibration” message
is displayed.
• Parameter as Ratio Turbidity or Non Ratio
Turbidity.
• The value of each calibration point (up to
5 points for ratio turbidimeter and 2 points for non
ratio turbidimeter). If the first calibration point was
skipped, the 0.00 value is displayed.
COLORIMETER
For Free and Total Chlorine range, The GLP has only one screen and contains:
• Instrument serial number
• The last user calibration date and time,
in selected format. If no calibration was performed,
the “Factory Calibration” message is displayed.
• Parameter as Total Chlorine or Free
Chlorine.
36
LOG AND LOG RECALL
The HI83414 has a powerful log function that could store up to 200 records.
Each record contains:
• the measuring range,
• the reading value,
• the measuring units,
• the date and time of the measurement,
• the current log number.
Notes: • The logs for each parameter are mixed together. The records are arranged based on the
record time.
• The log can be saved only after a measurement is completed.
• A measurement can be saved only once.
LOG SAVE
To log a record, simply press LOG key after the
measurement is completed. A record number
is assigned to each logged measurement. Each
reading can be stored only once.
LOG RECALL
The log can be consulted at any time by simply
pressing RCL key.
To exit log consulting, press RCL key again.
The log content is displayed one record at a time,
starting with the most recent one. The information
regarding the record is displayed on screen.
To browse the log press the  or  keys.
LOG DELETE
The last log or all logs can be deleted.
To delete the last log, simply press the Delete
key when the last log is displayed. The log will be
deleted and the next log is immediately displayed.
To delete all logs, press the DelAll key. A confir‑
mation screen is displayed. Press the CFM key to
confirm the action. The log will be deleted and the
instrument returns in the main screen.
Note: The records for all parameters are deleted
when this action is performed.
37
SETUP
In the Setup mode, the instrument’s parameters can be changed. Some parameters affect the mea‑
suring sequence and others are general parameters that change the behaviour or appearence of the
instrument. The items that are related to the selected parameter do not appear in the setup when
another parameter is selected.
The setup mode may be accessed from the main screen by pressing the SETUP key.
Press ESC or SETUP to return to the main screen.
A list of setup parameters will be displayed with currently configured setting. Press
HELP for aditional information.
Press the ARROW keys to select the parameter and depending to the parameter type, select the new
value as follows.
Backlight
Values: 0 to 8.
Press the Modify key to access the backlight value.
Use the  or  keys (alternatively, the  
functional keys) to increase or decrease the value.
Press the Accept key to confirm or ESC to return
to the setup menu without saving the new value.
Contrast
Values: 0 to 20.
This option is used to set the display’s contrast.
Press the Modify key to change the display’s
contrast.
Use the  or  keys (alternatively, the  
functional keys) to increase or decrease the value.
Press the Accept key to confirm the value or ESC
to return to the setup menu without saving the
new value.
Average (only for Turbidity ranges)
Option: Enabled or Disabled.
This option is used to enable/disable averaged
measuring mode. If enabled, the instrument takes
10 readings and display the resulting average
value. The partial average is displayed during
measurement. Press the function key to enable or
disable this option.
38
Date / Time
This option is used to set the instrument’s date
and time.
Press the Modify key to change the date/time.
Press the   functional keys to highlight the
value to be modified (year, month, day, hour,
minute or second). Use the  or  keys to
change the value.
Press the Accept key to confirm or ESC to return
to the setup without saving the new time or date.
Time format
Option: AM/PM or 24 hours.
Press the functional key to select the new format.
Date format
Press the Modify key to change the Date Format.
Use the  or  keys to select the desired format.
Press the Accept key to confirm or ESC to return
to the setup menu without saving the new format.
Language
Press the corresponding key to change the language.
If the new language cannot be loaded, the previou‑
sly selected language will be reloaded.
39
Tutorial
Option: Enabled or Disabled.
If enabled this option will provide the user short
guides on the screen.
Press the functional key to enable/disable the
tutorial mode.
Beeper
Option: Enabled or Disabled.
When enabled, a short beep is heard every time a
key is pressed.
A long beep alert sounds when the pressed key is
not active or an error condition is detected.
Press the functional key to enable/disable the
beeper.
Instrument ID
Option: 0 to 9999.
This option is used to set the instrument’s ID
(identification number). The instrument ID is used
while exchanging data with a PC.
Press the Modify key to access the instrument ID
screen. Press the  or  keys in order to set the
desired value. Press the Accept key to confirm the
value or ESC to return to the setup menu without
saving the new value.
Meter information
Press the Select key to view the Instrument model,
firmware version, language version and instrument
serial number.
Press ESC to return to the Setup mode.
40
LAMP REPLACEMENT
The instrument tungsten lamp has a life longer than 100,000 measurements. In case of lamp failure,
the defective lamp can be easily replaced. When the lamp is broken, the instrument displays a lamp
error message.
To replace the lamp follow the next steps:
• Power off the instrument and take out the
power cord.
• Remove the fixing screw of the lamp lid.
• Remove the lamp lid.
• Unscrew the lamp leads from connector.
• Unlock the lamp and extract it by pulling it out
from the lamp holder.
• Place the new lamp in the right position and
push it until is securely locked.
• Insert the lamp leads into the connector and
tighten them using a screwdriver.
• Return the lamp lid and secure with the screw.
Warning: After lamp replacement the meter has
to be recalibrated.
FUSE REPLACEMENT
To change the fuse follow next steps:
• Disconnect the power cord from the rear panel of the instrument.
• Pull out the fuse holder located near the power cord connector.
• Replace the fuse with a similar one.
• Push the fuse holder with the fuse in the appropriate place.
41
PC INTERFACE
Log data download from the instrument to the PC can be done with the HI92000 Windows compatible
software (optional). HI92000 also offers graphing and on-line help features. Data can be exported
to the most popular spreadsheet programs for further analysis.
To connect your instrument to a PC, use a standard USB cable. Make sure that your instrument is
switched off. Plug one connector to the instrument’s USB socket and the other to the USB port of your PC.
Please refer to the HI92000 software to download the data from the instrument.
To allow our users access to the latest version of Hanna Instruments PC compatible software, we made
the products available for download at http://software.hannainst.com. Select the product code
and click Download Now. After download is complete, use the setup.exe file to install the software.
ACCESSORIES
REAGENT SETS
HI93414-11
HI93701-01
HI93701-03
HI93703-58
HI93711-01
HI93711-03
HI83414-11
CAL CheckTM Calibration set for Free & Total Chlorine (1 set)
Reagents for 100 Free Chlorine tests
Reagents for 300 Free Chlorine tests
Silicon oil (15 mL)
Reagents for 100 Total Chlorine tests
Reagents for 300 Total Chlorine tests
Calibration set for turbidimeter(<0.1, 15, 100 750 and 2000 NTU)
OTHER ACCESSORIES
HI731318
HI731331
HI731335N
HI740234
HI92000
HI93703-50
Cloth for wiping cuvettes (4 pcs.)
Glass cuvettes (4 pcs.)
Caps for cuvettes (4 pcs.)
Replacement lamp for EPA turbidimeter (1 pcs.)
Windows® compatible software
Cuvette cleaning solution (230 mL)
42
RECOMMENDATIONS FOR USERS
Before using this product, make sure it is entirely suitable for your specific application and for the
environment in which it is used. Any variation introduced by the user to the supplied equipment
may degrade the meters' performance. For yours and the meter's safety do not use or store the
meter in hazardous environments.
CERTIFICATION
All Hanna Instruments conform to the CE European Directives.
Disposal of Electrical & Electronic Equipment. The product should not be treated as household
waste. Instead hand it over to the appropriate collection point for the recycling of electrical and
electronic equipment which will conserve natural resources.
Disposal of waste batteries. This product contains batteries, do not dispose of them with other
household waste. Hand them over to the appropriate collection point for recycling.
Ensuring proper product and battery disposal prevents potential negative consequences for the
environment and human health. For more information, contact your city, your local household waste
disposal service, the place of purchase or go to www.hannainst.com.
Hanna Instruments reserves the right to modify the design, construction or appearance of its
products without advance notice.
43
World Headquarters
Hanna Instruments Inc.
Highland Industrial Park
584 Park East Drive
Woonsocket, RI 02895 USA
www.hannainst.com
Printed in Romania
MAN83414 06/19
44
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