Hanna Instruments HI 93124 User manual

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Instruction Manual
HI 93124
Portable Logging
Haze Meter
www.hannainst.com

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Removetheinstrumentfromthepackingmaterialandexamineittomakesurethat
nodamagehasoccurredduringshipping.Ifthereisanydamage,notifyyourDealer.
HI 93124 is supplied complete with:
•Glass Cuvet & Cap (2 pcs.)
•1.5V AA alkaline batteries (4 pcs.)
•Instruction manual
•Rugged carrying case
Note: Save all packing material until you are sure that the meter functions
correctly. All defective items must be returned in its original packaging
with the supplied accessories.
PRELIMINARY EXAMINATION
Dear Customer,
Thank you for choosing a Hanna product.
Please read this instruction manual carefully before using the meter.
This manual will provide all necessary information for a correct use.
If you need additional technical information, do not hesitate to e-mail us at
[email protected] or contact your nearest technical office.
This instrument is in compliance with the directives.
TABLE OF CONTENTS
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. Damage 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 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 Customer
Service department and then send it with shipping costs prepaid. When shipping
any instrument, make sure it is properly packaged for complete protection.
WARRANTY
Warranty................................................................................... 3
Preliminary Examination ............................................................. 3
Principle of Operation ................................................................. 4
GeneralDescription ..................................................................... 4
FunctionalDescription ................................................................. 5
Specifications ............................................................................. 6
Operational Guide ..................................................................... 7
Taking measurements ......................................................... 7
Sourcesofinterference ......................................................... 8
Log-on-demand .................................................................. 8
Cleaning logged data ......................................................... 8
Viewing logged data .......................................................... 9
Viewing and setting date and time ..................................... 9
RS232connection ...................................................................... 9
Calibration .............................................................................. 10
Calibration procedure ........................................................ 10
Viewing calibration date ................................................... 11
Standard suspension ........................................................ 11
Tips for accurate operation........................................................ 12
LCD error codes ........................................................................ 13
Battery Replacement ................................................................ 14
Accessories ............................................................................... 14
CE declaration of conformity ...................................................... 15

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FUNCTIONAL DESCRIPTION
1) RS232 connector
2) Measurement cell
3) Liquid Crystal Display
4) ON/OFF key, to switch the meter ON and OFF; CLR key, to clear log memory
(with ALT)
5) GLP key, to display last calibration date and time; CAL key, to enter calibration
mode (with ALT)
6) ALT key, to activate alternate functions
7) READ key, to perform measurements; DATE key, to display (toggle) current date
and time (with ALT)
8) STO key, to store sample after reading; VIEW key, to view log memory (with ALT)
GENERAL DESCRIPTION
Beerclarityisaparameterconstantlycontrolledinbrewery,andtoassureaconsistent
product quality, the brewmaster needs more than visual inspection.
Several substances can cause haze in beer, but the most frequently encountered
problemisduetoacross-linkingof polyphenolandprotein.Thesematerialsprobably
existin equilibrium inbeerand manifest themselvesasa haze whenthepolyphenol
polymerizes.
A range of stabilization treatments is available for avoiding haze problems, and
theproducthastobecontrolledonseveralstepsduringbrewingprocess, inparticular
after filtration and before the beer enters the single tanks.
HI 93124 is a portable Haze meter, especially designed for application in brewery.
The instrument is also provided with a log-on-demand feature, which allows the
user to store up to 199 samples into the internal memory.
HI 93124 has been designed to perform turbidity measurements according to the
EBC (European Brewery Convention) Standard.
The instrument functions by passing a beam of infrared light through a cuvette
containingthe samplebeing measured.Thelight sourceisa HighEmissionInfrared
LED with a wavelength peaking at 890 nm, ensuring that the interference caused
by colored samples is minimum.
Asensor, positioned at 90° with respect to the direction oflight,detectstheamount
of light scattered by the undissolved particles present in the sample.
The microprocessor converts such readings into EBC values.
PRINCIPLE OF OPERATION

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Theinstrumentissuppliedcompletewithbatteries.Beforestartingoperations,install
thebatterieswhilepayingattentiontotheirpolarity(seealso“Battery Replacement”
section). To maximize the battery life the meter automatically switches off after 5
minutes of non-use. For reactivating it, simply press the ON/OFF key.
TAKINGMEASUREMENTS
•Turn the meter ON by pressing the ON/OFF key.
•Atstart-up themeter willshowthe fulldisplayfor
a few seconds, followed by the indication of the
remaining battery percentage.
•When the LCD displays “----” the meter is ready
to measure.
•Fillacleancuvetteupto0.5 cm(onequarterinch)
fromitsrim withthe thoroughlyagitated sample.
•Allow sufficient time for bubbles to escape before securing the cap.
Note: Do not over-tighten the cap.
• Wipethecuvettethoroughlywithalint-free tissue
(HI731318) before inserting into the measure-
ment cell.
Thecuvettemustbecompletelyfreeoffingerprints
andotheroil ordirt,particularlyintheareawhere
the light goes through (approximately the bot-
tom 2 cm/1 inch of the cuvette).
• Place the cuvette into the cell and check that the
notch on the cap is positioned securely into the
groove.
• Themarkon thecuvettecapshouldpointtowards
the LCD.
OPERATIONAL GUIDESPECIFICATIONS
Range 0 to 10.00 EBC
10 to 250 EBC
Resolution 0.01 EBC or 1 EBC
Accuracy ±0.20 EBC ±3% of reading (0.00 to 10.00 EBC)
±1 EBC ±5% of reading (outside)
Typical EMC Deviation ±1% F.S.
Light Source Infrared LED @890 nm
Light Source Life Life of the instrument
Light Detector SiliconPhotocell
Power Source 4 x 1.5V AA alkaline batteries
Battery Life 60 hours or 900 measurements
Auto-off After 5 minutes of non-use
Environment 0 to 50°C (32 to 122°F);
RH max 95% non-condensing
Dimensions 220 x 82 x 66 mm (8.7 x 3.2 x 2.6")
Weight 510 g (1.1 lb.)

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VIEWINGLOGGEDDATA
• Press ALT+VIEW keys: the last sample will be displayed.
• Press the “right arrow” key to scroll among turbidity value, date and time of
the sample.
• Press the “up/down arrow” keys to view next sample and use the “right arrow”
to scroll the date and time.
• Press ALT+VIEW again to exit and return to measurement mode.
VIEWING AND SETTING DATE AND TIME
VIEWING
• Press ALT+DATE to toggle between date and time.
SETTING
• Press and hold ALT+DATE for 3-4 seconds.
• Press the “up/down arrow” keys to set the year.
• Pressthe“rightarrow”toscrolltomonth&day,thenusethe“up/downarrow”
keys to set the date.
• Press the “right arrow” again to scroll to time, then use the “up/down arrow”
keys to set the time.
• Press the “right arrow” again to save and exit from setup mode.
Note: Press ALT+DATE to exit without saving.
• Press the READ key and the LCD will display a blinking “SIP” (Sampling In
Progress). The measured value will appear after approximately 25 seconds.
SOURCESOFINTERFERENCE
• Presenceoffloating debrisandcoarsesedimentwhichsettleout rapidlywillgive
false readings.
• Theinfrared lightsourceused for HI93124Hazemetercaneffectivelyminimize
errors due to coloured dissolved substances. This effect, named “true colour”,
isacommoninterferenceformostcommerciallyavailableinstrumentsoperating
in the range of visible light.
• Air bubbles and the effect of vibrations that disturb the surface of the sample
will give false results.
• Dirtyglasswarecouldalsoaffectreadingsalongwithscratchedoredged cuvette.
LOG-ON-DEMAND
•The meter can store up to 199 measurements in the internal memory. Press
the STO key: the last measured value will be stored and the display will show
the reference number of the stored sample.
•When the maximum number of samples (199) is
reached, the LCD will display the "FULL" message
to warn the user that next value will overwrite the
oldest sample recorded.
Allsampleswillbeshifted(referencenumberreducedbyone)andtheref.number
one will continue to indicate the oldest value. To confirm storing of the current
sample, press the STO button again.
CLEARINGLOGGEDDATA
•For clearing all data stored in memory, press
ALT+CLRkeys:themeterwillaskforconfirmation
by displaying the "CLr" message.
Press ALT+CLR again to clear memory or any button to abort the operation.
Tocommunicatewiththeinstrument throughtheHI92000software,simplyconnect
the 9-pin serial port of the PC to the 5-pin connector of the meter, by using the
HI920011 cable (optional).
Themeterwill maintainitsfullfunctionality,beingalsoable toperformdatatransfer
while operating.
Notes:
• RS232 communication is not allowed during calibration.
• The auto-off feature is disabled when the meter is connected to a PC.
RS232 CONNECTION

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• Afterapproximately30seconds,themeterwill
display“125”,askingforthe125EBC solution
to be placed in the cuvette holder.
Note: At this point the user can exit the calibration mode and save the two-point
calibration by pressing ALT+CAL keys.
• To perform a three-point calibration, place a cuvette filled with HI 93124-2
standard solution (@ 125 EBC) in the cuvette holder.
• Press the CAL key. “SIP” and “CL” will start blinking.
• After approximately 30 seconds, the display
willshow“----”.
Now the meter is calibrated and ready for use.
VIEWINGCALIBRATIONDATE
Todisplay the last calibration timeanddate,press
the GLP button to toggle through date and time.
Ifthedisplayshows"FS",theinstrumenthasfactory
calibration settings loaded and no date will be
displayed.
STANDARD SUSPENSION
Hanna Instruments supplies HI 93124 with the AMCO-AEPA-1 standards which
has a long shelf life at all concentrations (approximately six months, if free from
contamination).In addition,nospecial handlingordisposal isrequiredand amuch
higher stability of suspended particles has been observed.
On the other hand, the formazine-based standards are very toxic, carcinogen and
unstable(particlesflocculateandsettlequickly).Lowerconcentrationschangevalue
within a few days or hours after dilution from stock solutions.
Theconsistency ofHI 93124 readings by using both standards hasbeen separately
established by Advanced Polymer Systems and Hanna Instruments.
Additional documentation about the formazine standard and more complex
calibration procedures is available upon request.
CALIBRATION
If repeated measurements differ more than an acceptable value, check if the meter
calibration status by measuring a standard solution.
Anyway, it is recommended to perform a monthly calibration of the meter, or more
frequently for greatest accuracy.
To check the date of last calibration, simply press the GLP/CAL key. Press again to
toggle between date and time.
CALIBRATIONPROCEDURE
• Turnthemeteron andwaitfor thedisplay toshow
dashes“----”.
• PressALT+CAL keys, the“CAL”message will blink onthedisplay 3 times,then
the meter enter the calibration mode asking for the 0 EBC standard.
• Fill the measurement cuvette with HI 93124-0
standard (@ 0 EBC).
Note: In order to minimize any error introduced by the cuvette, it is recommended
to use the same cuvette during calibration and for measurements.
• Insert the cuvette with the 0 EBC standard solution (or turbidity-free dilution
water) into the measurement cell and press the CAL key. “SIP” and “CL” will
start blinking.
• After approximately 30 seconds the instrument
will ask for the 2.5 EBC standard solution.
• Repeat the same procedure with HI 93124-1 standard solution (@ 2.5 EBC):
fill the cuvette the HI 93124-1 standard, insert into the measurement cell and
press the CAL key again.

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TIPS FOR ACCURATE OPERATION
Theinstructions listed below should be carefully followedduringtesting and during
calibration.
• All glassware that comes into contact with standards should be maintained
clean. Wash with HI93703-50 cleaning solution and rinse with HI 93124-0
or turbidity free water.
• Forconsistentreadings,itisrecommendedtoperformmeasurementimmediately
after collecting sample.
• To obtain a representative sample, gently mix the liquid before samples are
taken. Do not shake (to prevent air bubbles) and do not let the sample settle.
• Rinsethecuvette twicewith 5ml oftheliquidtobetestedforremovingtheeffect
ofdustoranypreviousliquid.Gentlypour theliquid downthe sideofthecuvette
to reduce air bubbles.
• Try to tighten the cuvette cap always to the same degree.
• Beforeinsertingthecuvetteintotheinstrument,wipeitwithsoft,lint-free tissue.
Handle cuvettes so that no fingerprints can get on the areas where light passes
(approximately 2 cm/1 inch from the bottom of the cuvette).
• Discardthesamplesoonafterthereadingistakentoavoidpermanentlyclouding
the glass.
If any problem is experienced during measurements, please contact your dealer or
the nearest Hanna Instruments Customer Service Department.
LCD ERROR CODES
Every time the meter is switched on, the RTC (Real Time Clock) and the internal
memory (EEPROM) are tested.
If an error occurs, the corresponding error code will be displayed.
Here below are listed the error codes:
•No cover error; check cuvette position
•Calibration error; check calibration standard
solution
•Real Time Clock error (*)
•EEPROM error (*)
•Internal communication error (*)
•Internal Bus error (*)
(*) Contact the nearest Hanna Instruments Customer Service Department.

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CE DECLARATION OF CONFORMITY
Recommendations for Users
Before using this product, make sure that it is entirely suitable for the environment in which it is used.
Operation of this instrument 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 instrument's EMC performance.
To avoid electrical shock, do not use this instrument when voltages at the measurement surface exceed 24VAC or
60VDC.
To avoid damages or burns, do not perform any measurement in microwave ovens.
Hanna Instruments reserves the right to modify the design, construction and
appearance of its products without advance notice.
ACCESSORIES
HI 93124-0 Calibration solution, 0 EBC, 30 mL bottle
HI 93124-1 Calibration solution, 2.5 EBC, 30 mL bottle
HI 93124-2 Calibration solution, 125 EBC, 30 mL bottle
HI 93124-03 EBC Haze calibration set (HI 93124-0, HI 93124-1, HI
93124-2)
HI731318 Tissue for wiping cuvettes (4 pcs)
HI 731321 Spare measurement cuvettes (4 pcs)
HI92000 Windows®compatible application software
HI920011 5 to 9-pin RS232 connection cable
HI 93703-50 Cleaning solution, 230 mL bottle
BATTERY REPLACEMENT
In order to minimize the battery consumption, the meter is equipped with an auto-
shut off function which switches the meter off after 5 minutes of non-use.
The meter is powered by 4 alkaline batteries (1.5V AA), which are constantly
monitored by the meter to ensure reliable readings.
A "LO BAT" indication will appear on the display
when the batteries become weak and require
replacement; the instrument can perform only 50
moremeasurements.
A"0% LO BAT" message willappearonthe display
when the batteries level is too low for performing
measurements; the message appears for a few
seconds, then the meter automatically shuts off;
immediately replace the batteries.
Battery replacement must only take place in a non hazardous area using 4 alkaline
batteries, 1.5V AA size.
Turn the meter off, unscrew the 2 screws on the back of the instrument and remove
the battery cover. Substitute the rundown batteries with new ones, while paying
attention to their polarity. Reattach the battery cover and tighten the 2 screws.

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SALES AND TECHNICAL SERVICE CONTACTS
Australia:
Tel. [phone] • Fax [phone]
China:
Tel. [phone] • Fax [phone]
Egypt:
Tel. & Fax [phone]
Germany:
Tel. [phone] • Fax [phone]
Greece:
Tel. [phone] • Fax [phone]
Indonesia:
Tel. [phone] • Fax [phone]
Japan:
Tel. [phone] • Fax [phone]
Korea:
Tel. [phone] • Fax [phone]
Malaysia:
Tel. [phone] • Fax [phone]
Singapore:
Tel. [phone] • Fax [phone]
South Africa:
Tel. [phone] • Fax [phone]
Taiwan:
Tel. [phone] • Fax [phone]
Thailand:
Tel. [phone] • Fax [phone]
United Kingdom:
Tel. [phone] • Fax [phone]
USA:
Tel. [phone] • Fax [phone]
For e-mail contacts and complete list of Sales and Technical
offices, please see www.hannainst.com
MANC124 R1 05/05