HI 847492 - Hanna Instruments
Contents
1. Press LOG CFM or READ to start editing the day value The day value will start blinking Press the UP or DOWN keys to set the day value Note to edit the year again after the day was set press READ P gt Press LOG CFM to save the new date The new date will be displayed on the LCD Alternatively press CAL RCL to exit without saving the changes SET THE TIME To set the current time press CAL RCL when the Set time panel is displayed The time format is hh mm The hour value and CFM tag will start blinking Press the UP or DOWN keys to set the hour value Press LOG CFM or READ to start editing the minutes The minutes value will start blinking Press the UP or DOWN keys to set the minutes value Note To edit the hour again after the minutes were edited press READ Press LOG CFM to save the new time The new set time will be displayed Alternatively press CAL RCL to exit without saving the changes 23 LOG GLP AVG 06 CAL RCL GLP AVG 06 AVG GLP SET INSTRUMENT ID The instrument ID is a four digit number that can be edited by the user The instrument ID is downloaded on the PC application together with the logged data By setting a different 10 for each instrument it is possible to combine information from many turbidimeters into the same database To set the instrument ID pres2. Press SETUP DEL when the instruments displays the Delete calibration panel The user calibration will be deleted and the factory calibration will be restored The instrument will switch automatically to idle mode SETUP DEL SETUP The Setup mode allows the user to view and modify the instrument parameters When the blinking CAL tag appears during SETUP mode press CAL for editing parameters e To enter exit SETUP press SETUP DEL SETUP DEL To select the parameter to be edit press UP DOWN keys until the desired panel is displayed GLP AVG 20 SET UNIT The measure unit can be set between FTU HELM ASBC and EBC To set a new measure unit press CAL RCL when the unit panel is displayed The parameter setting and CFM tag will start blinking Press the UP or DOWN keys to select the measure unit Press LOG CFM save the change The new selected option of the parameter will be displayed on the LCD Alternatively press CAL exit without saving the changes SET BEEPER The HI 847492 has a built in beeper that signals the tag read the key press and the error conditions The beeper can be selected to be on or off To set the beeper on or off press CAL RCL when set beeper panel is displayed The beeper status and the CFM tag will start blinking Press the UP or DOWN keys to set the beeper on or off Press LOG CFM to save the change The new select
3. MEASUREMENT TIPS e For a correct filling of the cuvet the liquid in the cuvet forms a meniscus the bottom of this meniscus must be at the same level of the 10 mL mark CALIBRATION PROCEDURE Itis recommended to calibrate the meter only with Hanna ready to use calibration standard solutions Alternatively formazin standards can be used The prepared formazin solutions should be close to the default calibration points The first point must be near 0 FTU the second point between 10 and 20 FTU the third point between 50 and 150 FTU and the fourth point between 700 and 900 FTU CALIBRATION Calibration can be performed in two three or four points It is possible to interrupt calibration procedure at any time by pressing ON OFF Turn the instrument on by pressing ON OFF When the LCD displays the instrument is ready ON OFF Enter calibration mode by pressing CAL RCL The display will show CAL P 1 Place the lt 0 1 FTU standard into the holder Close the lid and press READ gt and the LED and Read Status indicator will blink on the display Alternatively press LOG CFM to skip the first Then the LCD will show the second calibration point 15 0 FTU and CALP 2 while READ is blinking Note If you re using different calibration standards change the displayed value by pressing UP or DOWN keys until the display shows the desired value Remove th
4. 14 days from the date of purchase PRELIMINARY EXAMINATION Please examine this product carefully Make sure the instrument is not damaged If any damage has occurred during the shipment please notify your dealer This 847492 Portable Haze Meter is supplied complete with e One HI 98501 1 Checktemp thermometer Checktemp instruction manual Five Sample Cuvets and Caps e Four Calibration Cuvets HI 847492 11 Five Tag Holders with Tags HI 920005 Cloth for wiping the cuvets Silicon oil e Four 1 5V AA Batteries AC Adapter Instruction Manual Instrument Quality Certificate Rigid carrying case Note Save all packing material until you are sure that the instrument works correctly Any defective item must be returned in the original packing with the supplied accessories 3 GENERAL DESCRIPTION The 847492 is an auto diagnostic microprocessor meter that benefits from Hanna s years of experience as manufacturer of analytical instruments The HI 847492 is a ASBC American Society of Brewing Chemists compliant haze meter that is part of the new HI 84749x series especially designed for haze measurements The other models included are 847491 150 compliant haze meter and 847493 MEBAK compliant haze meter The optical system consisting ofa 580 nm LED and multiple detectors assures low power consumption long term stability and minimizes the need of frequent calibration Calibration can be ea
5. 1 Cuvet Lid 5 LED connector 2 Cuvet Holder 6 LED Holder 3 Backlit Liquid Crystal Display LCD 7 Battery Compartment Splash proof keypad KEYPAD DESCRIPTION 847492 HAZE METER ASBC 8 ON OFF press to switch the meter ON and OFF 9 GLP A press to enter exit GLP Good Laboratory Practice feature In SETUP this key is used to increase the set values In Log Recall it is used to select a new record scroll up Hold the key for 3 seconds to activate deactivate the backlight 10 AVG W press to select the AVG Signal Average Mode on and off In SETUP it is used to decrease the set values In Log Recall it is used to select a previous record scroll down 8 8 a Fast Tracker 11 CAL RCL this is a bi functional key Just press to enter exit calibration or in setup mode start stop editing a parameter Hold the key for 3 seconds to enter exit viewing log content 12 LOG CFM press to save a record confirm the selected option 13 SETUP DEL press enter exit setup The DEL function is available in Log Recall mode to delete one or all records In GLP it is used to restore factory calibration 14 READ press to start measurement Hold the key to make a continuous measurement In Log Recall mode it is used to view the content of a record In GLP it is used to view all available information In Setup during date or time editing it is used to select day mont
6. 4584 2941 Fax 21 4584 2942 Japan Tel 03 3258 9565 Fax 03 3258 9567 Korea Tel 02 2278 5147 Fax 02 2264 1729 Malaysia Tel 603 5638 9940 Fax 603 5638 9829 Singapore Tel 6296 7118 Fax 6291 6906 South Africa Tel 011 615 6076 Fax 011 615 8582 Taiwan Tel 886 2 2739 3014 Fax 886 2 2739 2983 Thailand Tel 662 619 0708 11 Fax 662 619 0061 United Kingdom Tel 01525 850 855 Fax 01525 853 668 USA Tel 401 765 7500 Fax 401 765 7575 20 01 For e mail contacts and complete list of Sales and Technical offices please see www hannainst com
7. 5 5 tag holders with tags 740027 1 5V AA battery 12 pcs 710005 Voltage adapter from 115V to 12 VDC USA plug HI 710006 Voltage adapter from 230V to 12 VDC European plug 710012 Voltage adapter from 240V to 12 VDC UK plug 710013 Voltage adapter from 230V to 12 VDC South Africa plug 710014 Voltage adapter from 230V to 12 VDC Australia plug Recommendations for Users Before using these products make sure that they are entirely suitable for your specific application and for the environment in which they are used Operation of these instruments may cause unacceptable interferences to other electronic equipment thus 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 performance To avoid damages or burns do not put the instrument in microwave ovens For yours and the instrument safety do not use or store the instrument in hazardous environments Hanna Instruments reserves the right to modify the design construction and appearance of its products without advance notice SALES AND TECHNICAL SERVICE CONTACTS Australia Tel 03 9769 0666 Fax 03 9769 0699 China Tel 10 88570068 Fax 10 88570060 Egypt Tel amp Fax 02 2758 683 Germany Tel 07851 9129 0 Fax 07851 9129 99 Greece Tel 210 823 5192 Fax 210 884 0210 Indonesia Tel 21
8. D LABORATORY PRACTICE 1 19 EEEE ecard 20 PE ECR 24 TACINSTALLATION 24 BATTERY MANAGEMENT 25 ERROR CODES ar A ren VaR 26 POINTERPACE ytd ecb Sade 26 ACCESSORIES RI TRE 27 WARRANTY 847492 is warranted for two years against defects in workmanship and materials when used for its 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 is 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 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
9. FT Corporation PRINCIPLE OF OPERATION A light beam obtained from a High Emission 580 nm LED that passes through the sample is scattered in all directions The intensity and pattern of the scattered light is affected by many variables like wavelength of the incident light particle size shape refractive index and color The light source LED with wavelength peaking at 580 nm ensuring that the interference caused by colored samples is minimum The optical system includes LED scattered light detector 90 and transmitted light detector 180 The microprocessor of the instrument calculates the FTU value from the signals that reaches the two detectors LENS Seam LIGHT Ys o gt SCATTERED LIGHT DETECTOR The lower detection limit of a haze meter 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 HI 847492 haze meter is designed to have very low stray light providing accurate results also for low haze samples However special care must be taken when measuring low haze samples see General Tips for an Accurate Measurement page 10 MEASUREMENT UNITS Many methods were used to measure turbidity over the years The Jackson Candle Turbidimeter was used to measure turbidity as Jackson turbidity units JTU The method is visual and is not considere
10. Instruction Manual 847492 Portable Haze Meter ASBC compliant LAN www nhannainst co Dear Customer Thank you for choosing Hanna Instruments product This manual will provide you with the necessary information for correct use of the instrument Please read this instruction manual carefully before using the instrument If you need additional technical information do not hesitate to e mail us at tech hannainst com or see the back side of this manual for our worldwide sales and technical service contacts This instrument is in compliance with directives TABLE OF CONTENTS WARRANTY 3 PREUMINARY EXAMINATION reece 3 GENERAL DESCRIPTION sssessseccsssssssssssssevesssssseeeeesssseeeesssssssnnnsnssseeeeseeeeseesssssessssssnnneeeed 4 ABBREVIATIONS 5 PRINCIPLE OF OPERATION 6 MEASUREMENT UNITS scspcocscessescexcoehdeaseastaceseuscarsesshenanesnsad tassssdarseadhlcrocerbccrseanidactaenveeal 6 censure 1 FUNCHONALDESCRIRTION 8 GENERAL TIPS FOR AN ACCURATE MEASUREMENT sssesssesccsssssssssssssesstsssseseseeeeeeenssen 10 CAUBRATION PROCEDU RE selec e Sel HAVE MEASUREMENT 14 em eset tercene 16 GOO
11. d very accurate To obtain more accurate readings a nephelometer should be used as a turbidity reading instrument The 847492 haze meter reports the measurements FTU Formazin Turbidity Units FTU units are equal to NTU units Nephelometeric Turbidity Units The conversion table between these measurement units is shown below NTU FNU FTU EBC ASBC HELM 1 NTU 1 FNU 1 0 25 17 25 10 1 FTU 1 EBC 4 1 69 40 ASBC 0 058 0 014 1 0 579 1 HELM 0 1 0 025 1 725 1 SPECIFICATIONS Range Range Selection Resolution Accuracy Repeatability Stray Light Light Source Light Detector Method Display Calibration LOG Memory Serial Interface Environment Power supply Auto Shut off Dimensions Weight 0 00 to 9 99 FTU 10 0 to 99 9 FTU 100 to 1000 FTU Automatically 0 01 FTU from 0 00 to 9 99 FTU 0 1 from 10 0 to 99 9 FTU 1 FTU from 100 to 1000 FTU 2 of reading plus 0 05 FTU 1 of reading or 0 02 FTU whichever is greater lt 0 1 FTU LED 580nm Silicon Photocell Ratio Nephelometric Method 60 x 90mm backlit LCD Two three or four point calibration 200 records USB 1 1 0 to 50 C 32 to 122 F max 95 RH non condensing 4 x 1 5V AA alkaline batteries or AC adapter After 15 minutes of non use 224 x 87 x 77 mm 8 8 x 3 4 x 3 0 512 g 18 07 FUNCTIONAL DESCRIPTION INSTRUMENT DESCRIPTION ll
12. diately after installation of the tags you can start collecting data Use the meter to take measurements and memorize the test result by pressing the Log on Demand key Then the instrument will ask for the tag identification By simply touching the iButton with the matching connector on the meter it will identify and authenticate logging by storing the iButton serial number time and date stamp events The power of the 1 5 features resides in the PC application Download all test data your PC and use our 92000 Windows compatible application software for further data management You can sort filter all your collected data on different criteria specific sampling location parameter date and time intervals or fix range to filter measured values The data can be plotted a graph exported to other common Windows applications or printed for reporting purpose It is also possible to add new tags later on thus increasing an already existing database Each time the PC software recognizes an unregistered tag it will ask for a description of the new sampling location ABBREVIATIONS NTU Nephelometric Turbidity Units Formazin Turbidity Units ASBC American Society of Brewing Chemists EBC European Brewery Convention LCD Liquid Crystal Display RTC Real Time Clock TIS Tag Identification System iButton is registered Trademark of MAXIN DALLAS semiconductor Corp Windows is registered Trademark of MICROSO
13. ds the instrument displays the first reading The meter continues updating the readings until the LED and Read Status indicator turns off The final displayed value is the averaged reading of turbidity in FTU AVG READ CONTINUOUS MEASUREMENT This measurement mode can be used to verify how fast suspended parts settle out Please verify first that the AVG mode is turned off see instructions above To make continuous measurement keep the READ key pressed until the desired number of measurements are taken The last value remains on the display after the READ key is released LOGGING 847492 has a log space for up to 200 records With each measurement the date time and tag 10 is stored In this way each record is fully characterized and can be easily analyzed when downloading data on the PC application HI 92000 LOGGING The log function is active after a valid measurement is obtained no errors To log a value press LOG CFM when the measurement result is displayed The instrument asks to READ TAG for identification of the sampling location The location for the new record is also displayed on the secondary LCD To read the 10 code for the sampling location identification simply touch the iButton tag with the matching connector located on the back of the instrument see Connectors Description page 9 Alternatively press again LOG CFM to store the record without the tag 10 code If the tag
14. duct quality the brewmaster needs more than visual inspection Several substances can cause haze in beer but the most frequently encountered problem is due to a cross linking of polyphenol and protein These materials exist in equilibrium in beer and manifest themselves as a haze when polyphenols combine with proteins to form an insoluble colloidal haze A range of stabilization treatments is available for avoiding haze problems and the product has to be controlled in several steps during the brewing process in particular after filtration and before the beer enters the bright tanks TAG IDENTIFICATION SYSTEM Hanna is the first manufacturer of turbidity instruments that has added the unique T I S Tag Identification System to portable turbidity meters to meet the more restrictive needs for traceability and data management of our clients The system is designed for scientific and industrial applications as well as for safety audits and inspections to show that measurements have been taken on pre established locations The system is as easy to install as operate Just fix the iButton tags near your sampling sites that need to be checked offen and with this the T S is setup The tag contains a computer chip embedded in durable stainless steel It is designed to withstand the harsh environments indoors or outdoors The number of tags that can be installed is practically unlimited because each tag has a unique identification code Imme
15. e lt 0 1 FTU standard cuvet and place the 15 0 FTU standard cuvet into the holder Close the lid and press READ gt and the LED and Read Status indicator will blink again while making the reading At the end of the reading the third calibration point 100 FTU and CAL P 3 is displayed If desired the value can be changed using the UP or DOWN keys Note At this moment it is possible to exit calibration by pressing CAL RCL The instrument will memorize the two point lt 0 1 and 15 0 FTU calibration data and will return to measurement mode Remove the 15 0 FTU standard cuvet from the meter and place the 100 FTU standard cuvet into the holder Close the lid and press READ gt and the LED and Read Status indicator will blink again while making the reading alibration point At the end of the reading the fourth calibration point 800 FTU and CAL P 4 is displayed If desired the value can be changed using the UP or DOWN keys Note At this moment it is possible to exit calibration by pressing CAL RCL The instrument will memorize the three point lt 0 1 15 0 and 100 FTU calibration data and will return to measurement mode Remove the 100 FTU standard cuvet from the meter and insert the 800 FTU standard cuvet into the holder Close the lid and press READ P and the LED and Read Status indicator will blink again while making the reading At
16. ed option will be displayed on the LCD Alternatively press CAL exit without saving the changes 21 CAL RCL GLP CAL RCL GLP LOG LOG AVG AVG SHOW HIDE THE TIME You can choose between showing or hiding the current hour and minutes on the secondary LCD To set hiding or showing the time press CAL RCL when the Show hide time panel is displayed The time show status and the CFM tag will start blinking Press the UP or DOWN keys to set Led hide for time Press LOG CFM to save the change The new selected option will be displayed on the LCD Alternatively press CAL RCL to exit without saving the changes SET THE DATE The 847492 haze meter has a built in real time clock RTC The RTC time is used to generate a unique time stamp for each recorded value and to automatically store the last calibration date The current time can be displayed on the LCD when the instrument is in measurement mode To set the current date press CAL RCL when the Set date panel is displayed The date format is YYYY MM DD The last two digits of the year value and CFM tag will start blinking Press the UP or DOWN keys to set the year value Press LOG CFM READ to start editing the month value The month value will start blinking Press the UP or DOWN keys to set the month value 22 CAL RCL or GLP AVG V LOG CFM
17. h or year and hour minutes CONNECTORS DESCRIPTION 15 AC adapter connector 16 USB connector 17 Tag reader DISPLAY DESCRIPTION AVG LOG DEL SET DATETIME c CB READ TAG CAL 1 Battery icon This icon appears when the status of the battery is displayed or when the battery voltage is getting low 2 Hour glass icon It is displayed when the instrument performs an internal checkup 3 LED and read status indicator 4 Four digit main display 5 Measurement units When average or continuous mode is selected the unit tag blinks for each new displayed value For conversions in other units see Measurement Units section AVG icon appears when the Signal Average Mode is selected 7 Four digit secondary display BEEPER A long beep indicates an error or an invalid key pressed A short beep means that the current operation is confirmed o 2 GENERAL TIPS FOR AN ACCURATE MEASUREMENT The instructions listed below should be carefully followed to ensure best accuracy GENERAL TIPS e Always cap the cuvets to avoid spillage of the sample into the instrument Always close the lid of the instrument during measurement Keep the lid of the instrument closed when it is not used to prevent dust dirt entering Put always the instrument on a flat rugged surface when taking measurements CUVET The cuvet is part of the optical system and measure
18. is successfully read the instrument will beep once displaying the unique hexadecimal code of the tag and store the data After data is stored the instrument returns to measurement mode Notes Ifthe tag is not read within 20 seconds the logging procedure is canceled A measurement can be stored only once Also an over range value can be stored LOG If less than ten free records are available the LOG tag will blink while storing data Ifthe log memory is full LoG FULL message will appear for a few seconds on the LCD and the instrument will return measurement mode without storing the new record To store new record delete one or more records VIEW LOGGED DATA The stored records can be viewed by pressing CAL RCL key for a few seconds To return to normal measurement mode press CAL RCL key again LOG SEARCHING The log records are stored in chronological order The first displayed record is the last stored one Press UP or DOWN keys to scroll the log memory record by record By holding the UP or DOWN keys the scrolling speed will increase The scrolling of the log is possible from any panel of the record except Delete last log and Delete all logs panels When scrolling the log the number of the record is displayed for one second on the secondary LCD together with TAG if the identification of the sampling location was made When the end of the l
19. ments can be affected by the glass imperfections dirt dust scratches or fingerprints present on the cuvet surface CUVET HANDLING Any cuvet with visible scratches must be discarded e Always store the cuvets in separate boxes or with separators between them to avoid scratches the surface Whenever a cuvet is placed into the instrument it must be dry outside free of fingerprints or dirt Wipe it thoroughly with 731318 cloth for wiping cuvets see Accessories Section page 27 or a lint free tissue prior to insertion CUVET OILING For low haze readings lt 1 0 FTU the cuvets should be oiled outside with the supplied HI 93703 58 Silicone Oil Use only one single drop of oil and then wipe the cuvet thoroughly with a lint free cloth gt w SAMPLING TECHNIQUE When you make beer haze measurements it is important to take a representative sample The beer to be tested must be placed in upright position in a constant temperature bath and hold for 24 hours at 0 C e Pre chill a cuvet in small ice water bath containing wetting agent external contact only Without disturbing any sediment rinse and then fill cuvet with test sample Place the cuvet in the small ice water and degas beer by stirring The 98501 1 Checktemp 10 thermometer will be used to read the beer temperature When the beer temperature is 0 C 32 F place the cuvet in the meter and imediately start the reading
20. og is reached an error beep is heard RECORD VIEWING Each record contains more information than the measured value The additional information is grouped in several panels Press READ to scroll through the record panels The record panels are displayed one by one in a circular way GLP READ gt Low CAL RCL or FULL AVG V Each record contains the following panels The record value haze value and record number Note Ifthe logged sample value is an over range reading the maximum value 1000 FTU will be displayed blinking The hexadecimal string of the tag for the sampling location Note If the ID data are missing is displayed instead Measurement date in YYYY MM DD format Measurement time in hh mm format Delete the last record panel only for last record Delete all records DELETE LAST RECORD To delete the last record scroll through the log menu until the delete last record panel is displayed To delete the last record press SETUP DEL when the Delete last records panel is displayed The instrument asks for confirmation Press the LOG CFM key to confirm the last record is deleted To abort the delete function press READ gt instead of LOG CFM SETUP DEL LOG CFM After the record is deleted the instrument goes immediately to the first panel of the previous record If the log becomes empt
21. ory calibration is restored HAZE MEASUREMENT Note For beer analysis it is recommended to work always with the AVG mode on Turn the instrument ON by pressing ON OFF When the LCD displays the instrument is ready The current time appears on the secondary LCD if selected in Setup menu Follow the procedure described in the MEASUREMENT TECHNIQUE section Note To remove any fingerprints or dirt wipe the cuvet thoroughly with a lint free cloth If 14 SETUP DEL ON OFF rT Err necessary apply 93703 58 Silicone Oil see General Tips for an accurate measurements page 10 recommended only if low haze values need to be read Place the cuvet into the instrument and close the lid Press READ and will blink on the display At the end of the measurement the instrument directly displays haze FTU AVG SIGNAL AVERAGE MODE It is recommended select this measurement mode when you work with unstable samples that contain suspended particles of different dimensions In the AVG mode the instrument takes 20 measurements in a short period of time and displays the updated averaged value To select the averaged measurement mode press the AVG W key and the AVG icon will appear on the LCD Note to return to the normal measurement mode just press again the AVG W key Press READ gt and will blink on the dis play After a few secon
22. r persists The lid is not closed contact your nearest HANNA Customer Service Center Err Err2 Err3 Critical errors Err Err7 Err8 The instrument beeps and shuts down Check the optical system no L LED mulfunction or no light for obstructions Replace the LED 5 Check the optical system Not enough light for obstructions 10 The standard used for current Check the standard and calibration point is too low use the correct one The standard used for current Check the standard and calibration point is too high use the correct one i i Battery tag blinking he remaining battery life is too low Replace batteries bAtt The batteries are too discharged for Replace correct measurements PC INTERFACE To fully use the instrument tag identification system function the measured data has to be downloaded to a computer The instrument uses USB connection to communicate with the PC To use the USB protocol simply connect a regular USB cable between instrument and PC In both cases the PC must run the HI 92000 application for successful data transfer 26 ACCESSORIES 93703 58 Silicone oil 15 mL 847492 11 Calibration cuvets kit 731331 Glass cuvets 4 pcs 731335N Caps for cuvets 4 pcs 93703 50 Cuvets cleaning solution 230 mL HI 731318 Cloth for wiping cuvets 4 pcs HI 740220 25 ml glass vial with cap 2 pcs HI 92000 Windows compatible software HI 92000
23. remaining estimated battery life reported in percents To save the battery life the instrument will turn off after 15 minutes of non use The backlight will turn off 25 seconds after the last key is pressed The battery life is measured each time the lamp is turned on and if the remaining battery life is less than 10 the battery tag will blink on the LCD to advise the user to replace the batteries When the batteries are completely discharged 0 message will be displayed for one second and the instrument will turn off In order use the instrument again replace the batteries or use an AC adapter BATTERY REPLACEMENT To replace the batteries follow the next steps Turn OFF the instrument by pressing the ON OFF button e Open the battery cover by pressing the locking clip e out the used batteries and insert 4 new 1 5 AA size batteries paying attention to the correct polarity as indicated on the battery compartment e Replace the cover and press it until it locks Warning Replace batteries only in non hazardous area 25 ERROR CODES 847492 has a powerful diagnostic system Common errors are detected and reported for easy diagnostic and maintenance EROR DESCRIPTION ACTION Contact your nearest HANNA Customer Service Center The instrument beeps shortly twice and Press simultaneously UP shuts down after 10 seconds and DOWN to reset Close the lid If the erro
24. s CAL RCL when the Set instrument ID panel is displayed The default instrument 10 is 0000 The existing 10 value and the CFM tag will start blinking CALIRCL Press the UP or DOWN keys to set the new instrument ID By pressing and holding the UP or or DOWN keys the changing speed will increase cur ak AVG Press LOG CFM to save the change The new instrument 10 will be displayed Alternatively press CAL RCL to exit without saving the changes LOG CFM LCD BACKLIGHT The LCD can be illuminated to allow the user to see the readings even in the dark To turn on or off the backlight hold the GLP key for 3 seconds The backlight will automatically shut off after 25 seconds of non use fo save GLP the battery life TAG INSTALLATION The tag is housed in rugged stainless steel that can withstand harsh conditions However it is better to protect the tag from direct rain Place the tag near a sampling point Fix it securely with the screws provided in such a way that the metallic iButton is easily accessible for reading the tag The number of tags that can be installed is practically unlimited Additional tags can be ordered See Accessories page 27 for HI 920005 five tag holders with tags 24 For field measurements HI 847492 is powered by 4 AA batteries The battery life is enough for 3500 normal measurements When you turn the instrument on the
25. sily performed at any time in two three or four adjustable points lt 0 1 15 100 and 800 FTU using the supplied or user prepared standards The meter has all necessary GLP Good Laboratory Practice functions to allow maximum traceability of data like a real time clock log on demand up to 200 measurements and T 1 S Tag Identification System to give all recorded data a location time and date stamp The meter measures haze of samples from 0 00 to 1000 FTU Formazin Turbidity Units It has a continuous measurement mode to verify the settling rate of suspended matter and a signal average AVG mode to accumulate multiple readings giving final average value The AVG setting is particularly useful to measure samples with suspended particles with different dimensions The HI 847492 has a user friendly interface with a large backlit LCD Liquid Crystal Display Acoustic signals and displayed codes to guide the user step by step through routine operations This splash proof portable haze meter is supplied in a rigid carrying case that offers protection for harsh environments Haze Beer haze may be defined as an insoluble or semisoluble particulate matter which is small enough to form a colloidal suspension in beer typically lt 2mm These particles scatter transmitted light and observed as a degradation in the brilliance of the beer Beer clarity is a parameter constantly controlled in the brewery and to assure consistent pro
26. the end of the measurement the four point calibration is completed and the instrument returns automatically to measurement mode OUT CAL RANGE FUNCTION The instrument has an Out Cal Range function to prevent taking measurements in range where the calibration do not assure the best results The range where the calibration assures correct measurements is up to 40 FTU for a two point calibration and up to 150 of the third point value for a three point calibration The display will show a blinking CAL tag each time the measurements are taken outside the calibration range CALIBRATION ERRORS e Ifthe read value during calibration is too far from the set value the instrument will show 10 or HI error calculated calibration coefficients are off specifications the CAL Err message is displayed DELETE CALIBRATION 847492 is factory calibrated It is possible restore factory calibration by deleting last performed calibration To delete last calibration follow the next steps Enter the GLP feature by pressing GLP The date of the last calibration will be displayed on the LCD e g 2007 01 23 Press READ to scroll through the information related to calibration The last panel is the with Delete Calibration Press SETUP DEL to delete the current calibration After deletion the instrument will automatically return to measurement mode and the fact
27. y will be displayed for one second and the instrument will return to measurement mode DELETE ALL RECORDS To delete all records scroll through the log until delete all records panel is displayed To delete all records press SETUP DEL when the Delete all records panel is displayed SETUP DEL The instrument asks for confirmation Press the LOG CFM key to confirm all records are deleted To abort the delete function press READ gt instead of LOG CFM LOG After all records are deleted the instrument returns measurement mode GOOD LABORATORY PRACTICE GLP The GLP feature allows the user to view last calibration data Also the user calibration can be deleted e Press GLP to enter or exit GLP data consulting Several functions are available when in GLP menu Press READ to scroll through the GLP data READ gt The following GLP panels can be viewed e last calibration date in YYYY MM DD aes of FEAL format If no calibration was performed the factory calibration message F CAL will be displayed on the LCD The time of the last calibration in hh mm format 19 e First calibration point 0 00 FTU if skipped or the actual read value e g 0 01 FTU e Second calibration point Third calibration point if available Fourth calibration point if available Delete calibration panel To delete calibration
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