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Hanna Instruments HI 84500, Instruction Manual

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Hanna Instruments HI 84500 Instruction Manual Download Page 28

28

ORP MEASUREMENT

The 

HI 84500

 can be used as an ORP meter for direct measurements.

Set the instrument to 

ORP meter

. From titrator mode press 

Meter

 until mV units are displayed.

Rinse the ORP tip with distilled or deionized water.
Place ORP electrode into electrode holder.

Press 

MENU 

then 

GLP

.

The 

pump’s last calibration

 time, date and slope is displayed.

If a calibration hasn’t been performed the message 

“Not Calibrated”

 will be displayed.

TITRATOR GLP INFORMATION

If the titrator log is empty the message 

“No Records Available!”

 will be displayed.

Summary of Contents for HI 84500

Page 1: ...1 Instruction Manual HI 84500 FREE TOTAL SULFUR DIOXIDE MINITITRATOR for wine analysis www hannainst com...

Page 2: ...uct This manual will provide you with the necessary information for the correct use of the instrument Please read it carefully before using the instrument If you need additional technical information...

Page 3: ...FICATIONS 6 PRINCIPLE OF OPERATION 7 FUNCTIONAL DESCRIPTION 8 TITRATOR STARTUP 10 SETUP MENU 11 GUIDE TO DISPLAY CODES 15 ELECTRODE PREPARATION 17 DOSING PUMP INSTALLATION 18 DOSING PUMP PRIME PROCEDU...

Page 4: ...g PRELIMINARY EXAMINATION The HI 84500 is a low cost easy to use microprocessor based automatic titrator that benefits from Hanna s years of experience as a manufacturer of analytical instrumentation...

Page 5: ...omplex This relationship is governed by the total amount of SO2 in the wine The exact relationship between free and bound will vary wine to wine The amount of free SO2 is depends on how much is added...

Page 6: ...pm Log data Up to 200 samples ORP meter ORP meter 2000 0 to 2000 0 mV ORP Resolution 0 1 mV ORP Accuracy 1 mV Log data Up to 200 samples ORP Electrode HI 3148B Environment 0 to 50 C 32 to 122 F max 95...

Page 7: ...e produced in the sample then reacts with sulfur dioxide in the wine according to the redox reaction below H2 SO3 I2 H2 SO4 2HI The HI 84500 utilizes an ORP electrode to monitor the redox titration Th...

Page 8: ...r 11 USB connector PC interface 12 USB connector Storage interface 13 BNC electrode connector 14 Titrant bottle 15 Syringe 16 Aspiration tube 17 Dosing Pump Valve FUNCTIONAL DESCRIPTION OVERHEAD VIEW...

Page 9: ...ve the current mV ORP reading in ORP meter mode and the titration result MENU used to enter Setup Recall or GLP selection menu while instrument is in ORP or Titration mode STIR used to start stop the...

Page 10: ...ed based on the concentration See Pump Calibration Procedure for details Prime the syringe To assure high accuracy verify there are no air bubbles in the syringe or tubing Calibrate the pump Note Diff...

Page 11: ...meter or titrator mode by pressing the MENU key then Setup A list of setup parameters will be displayed with currently configured setting While in the setup menu it is possible to modify the instrumen...

Page 12: ...be heard every time a key is pressed Error Beep Select Enable to activate or Disable to deactivate the Error Beep function If enabled a beep will be heard when an error condition occurs Decimal Separ...

Page 13: ...lp information are not available Language Press Select to view the firmware version language version mV factory calibration date and time Meter Information Tutorial Enable or Disable the Tutorial This...

Page 14: ...14 Restore Factory Settings Press Select to restore the factory settings Press Yes to confirm the restore process or No to return without restoring Press ESC to return to the setup menu...

Page 15: ...ss Titration screen display This screen appears when the instrument is turned on during the initialization process Prime burette screen PUMP CALIBRATION MESSAGES Prime burette screen when the dosing s...

Page 16: ...g system and try again The calibration was outside the acceptable limits Prepare a new standard and try again This error message appears when the input reading mV exceeds the input limits 2000 0 mV Th...

Page 17: ...If the bulb is dry soak the electrode in HI 70300 Storage Solution for at least one hour This screen is displayed when the instrument is in titration mode Press the Start to begin a titration Meter to...

Page 18: ...re it fits securely Insert the aspiration tube into the left side of the valve 6 and replace the titrant bottle cap with the attached cap 7 Insert the dispensing tube into the top of the valve 8 DOSIN...

Page 19: ...selected range To prime the burette select Prime option from Titration mode Adjust the rinses number by pressing the and keys and press Start The number of syringe rinses can be set between 1 and 5 a...

Page 20: ...Standard to a clean beaker as indicated below Note Failure to use a clean pipette will result in erroneous readings e g n a R w o L e g n a R h g i H m p p 0 0 4 o t 0 1 m p p 0 0 4 o t 0 3 Low Range...

Page 21: ...der on the top of the beaker and secure it by turning clockwise Rinse the ORP electrode with deionized water and immerse into the sample until the Teflon reference junction is completely submerged Be...

Page 22: ...p p 0 0 4 o t 0 1 m p p 0 0 4 o t 0 3 Low Range Free Total SO2 50 ml High Range Free Total SO2 50 ml Fill the 20 mL beaker up to the 5 mL mark with the HI 84500 60 Acid Reagent and add the contents t...

Page 23: ...rd the concentration value and the titration curve into the instrument s memory A message will be displayed for a few seconds indicating the amount of the free log space Up to 200 log samples can be r...

Page 24: ...tal SO2 50 ml High Range Free Total SO2 50 ml Note The volume of wine added is critical to the measurement accuracy Pipettes are recommended Failure to use a clean pipette will result in erroneous rea...

Page 25: ...aker and secure it by turning clockwise Rinse the ORP electrode with deionized water and immerse into the sample until the Teflon reference junction is completely submerged Be sure that the tip of the...

Page 26: ...d with the highest possible accuracy and precision IT IS CRITICAL THAT THE TIP BE IMMERSED IN THE SOLUTION BEING TITRATED APPROXIMATELY 0 5 CM Use a clean volumetric pipette to measure and transfer th...

Page 27: ...when is displayed to scroll between the log records Press ESC to return to the previous screen Press Plot to visualize the titration curve or ESC to return to the previous screen On the titration curv...

Page 28: ...layed Rinse the ORP tip with distilled or deionized water Place ORP electrode into electrode holder Press MENU then GLP The pump s last calibration time date and slope is displayed If a calibration ha...

Page 29: ...ed in front of the reading Press Delete to delete the selected log from the memory Press Del All to delete all records Press Info to see detailed information about the highlighted record For a faster...

Page 30: ...ing the mV measurement and titration can be transferred from meter to a USB stick using Export function from log recall menu Two text files are transferred on the USB stick These files can be used for...

Page 31: ...i d e g n a r f o t u o g n i d a e R o t n o i t c e n n o c e l b a c k c e h C e v i t c e t o r p y f i r e v d n a r e t e m e h t k c e h C f f o s i p a c e l p m a s e h t f o y t i l a u q l...

Page 32: ...l a c e R e g n a r t c e r r o c e h t t c e l e S p m u p e h t e t a r b i l a c e r r e t e m e h t p u t r a t s t A A N N A H e h t s y a l p s i d y l t n e n a m r e p o g o l k c u t s s i s...

Page 33: ...or in its absence HI 7082 Fill Solution Follow the Preparation Procedure before taking measurements Note NEVER STORE THE ELECTRODE IN DISTILLED OR DEIONIZED WATER PERIODIC MAINTENANCE Inspect the elec...

Page 34: ...mL ELECTRODE STORAGE SOLUTION HI 70300L Electrode storage solution 500 mL CLEANING SOLUTION HI 70635L Cleaning solution for wine deposits 500 mL HI 70636L Cleaning solution for wine stains 500 mL OTH...

Page 35: ...en shipping any instrument make sure it is properly packaged for complete protection To validate your warranty fill out and return the enclosed warranty card within 14 days from the date of purchase W...

Page 36: ...Hanna Instruments Inc Highland Industrial Park 584 Park East Drive Woonsocket RI 02895 USA Technical Support for Customers Tel 800 426 6287 Fax 401 765 7575 E mail tech hannainst com www hannainst co...

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