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INSTRUCTION MANUAL

HI84534

Titratable Acidity

Minititrator & pH Meter

For Vinegar

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Summary of Contents for HI84534

Page 1: ...INSTRUCTION MANUAL HI84534 Titratable Acidity Minititrator pH Meter For Vinegar...

Page 2: ...a Hanna Instruments product Please read this instruction manual carefully before using this meter This manual will provide you with the necessary information for correct use of this meter as well as...

Page 3: ...PUMP 12 5 TITRATOR SETUP 13 5 1 ELECTRODE 13 5 2 DOSING PUMP 14 6 SETUP MENU 17 6 1 CONCENTRATION UNIT 17 6 2 CALIBRATION TIMEOUT 17 6 3 pH RESOLUTION 17 6 4 TEMPERATURE UNIT 18 6 5 TIME 18 6 6 DATE 1...

Page 4: ...E PREPARATION 27 9 2 PROCEDURE 27 9 3 ERRORS AND WARNING MESSAGES 29 10 pH MEASUREMENT 30 11 LOGGING 31 11 1 TITRATOR 31 11 2 METER 32 11 3 PC INTERFACE AND DATA TRANSFER 33 12 TITRATOR GLP INFORMATIO...

Page 5: ...egar HI1131B pH electrode HI7662 T Temperature probe HI7082 Electrode fill solution 30 mL 100 mL beakers 2 pcs Tube set aspiration tube with titrant bottle cap and dispensing tube with tip Dosing pump...

Page 6: ...ectrode and pump 2 1 PRINCIPLE OF OPERATION Vinegar acidity is determined by neutralization of all available hydrogen ions present in the sample with a strong base solution H HO H2 O In an ideal solut...

Page 7: ...type of vinegar depends on what liquid the ethanol has been fermented in White vinegar is made a vodka type liquor made from grain while apple cider vinegar is made from apples and balsamic vinegarism...

Page 8: ...to pH 8 2 Pump speed 10 mL min Stirring speed 600 rpm Data storage Up to 200 titrations pH mV meter pH range 2 0 to 16 0 pH 2 00 to 16 00 pH pH resolution 0 1 pH 0 01 pH pH accuracy 0 01 pH pH calibra...

Page 9: ...2 T Power supply 12 Vdc power adapter Dimension 235 x 200 x 150 mm 9 2 x 7 9 x 5 9 Weight 1 9 kg 67 0 oz Environment 0 to 50 C 32 to 122 F max 95 RH non condensing REQUIRED REAGENTS Code Description H...

Page 10: ...Temperature probe 7 pH electrode 8 Electrode holder 9 Beaker 10 Power switch 11 USB connector PC interface 12 USB connector storage interface 13 Power adapter 14 BNC electrode connector 15 Temperatur...

Page 11: ...s to scroll the information displayed while viewing a help screen or to move between the options from the instrument s Setup CAL used to access the electrode and pump calibration options HELP used to...

Page 12: ...ATC automatic or MTC manual 8 Temperature reading 9 Indicates the parameter can be modified 4 5 DOSING PUMP The dosing pump is based on a valve that automatically moves the titrant between the titrant...

Page 13: ...on in the protective cap with a few drops of HI70300 or HI80300 storage solution Follow the preparation procedure section before taking measurements Note Never store the pH electrode in distilled or d...

Page 14: ...on the pump 2 Once the syringe is in place lower the barrel until it sits flush on the holder Puttheo ringandsyringe fixingnutoverthesyringe 3 andturnclockwisetosecureitinplace 4 Place the valve on t...

Page 15: ...The prime cycle is used to fill the syringe before starting a set of titrations Two rinse cycles of the syringe are shown in the figure below The dispensing tube is connected to the top of the valve...

Page 16: ...rt A minimum of 3 rinses is recommended to ensure all of the air bubbles have been removed To stop the prime cycle press Stop To pause the prime cycle press Pause to continue press Continue Note The P...

Page 17: ...C to return to the main screen 6 1 CONCENTRATION UNIT Option AA or g L AA Press the corresponding virtual option key to select the concentration unit AA g 100 mL Acetic Acid g L AA g L Acetic Acid 6 2...

Page 18: ...new value or the ESC key to return to the setup menu without saving the changes 6 6 DATE Press the Modify key to change the date and date format Press Format to cycle between the available date format...

Page 19: ...screen and CSV files 6 10 LCD CONTRAST Option 0 to 15 Press Modify to change the display s contrast Use the keys or keys to increase or decrease the value Press Accept to confirm the new value or the...

Page 20: ...rmation are not available 6 13 TUTORIAL Option Enable or Disable If enabled additional information will be displayed during the calibration and titrations 6 14 METER INFORMATION Press Select to view t...

Page 21: ...may be used Note The HI84534 will not accept other pH buffers for calibration Pour small quantities of selected buffer solutions into clean beakers For accurate calibration use two beakers for each bu...

Page 22: ...med press the ESC key to exit and save the one point calibration Two Point Calibration Remove the electrode holder with electrodes from the top of the beaker Place the second beaker with calibration b...

Page 23: ...s the STIR key If necessary press the keys in order to select a different buffer value Note Previously confirmed buffers are removed from the list of available buffers The symbol will be shown on the...

Page 24: ...tency exists between the current and the previous calibration Clear the previous calibration by pressing Clear and proceed with calibration from the current calibration point The instrument will keep...

Page 25: ...tte to add exactly 2 mL of HI84534 55 calibration standard to a clean beaker Note Failure to use a clean pipette will result in erroneous readings Fill the beaker up to the 50 mL mark with the distill...

Page 26: ...alibration or Stop to abort it At the end of the calibration Calibration Completed appears on display To repeat the calibration press Restart or the ESC key to return to the main screen 8 3 ERRORS AND...

Page 27: ...50 mL with distilled or deionized water 9 2 PROCEDURE Place the dispensing tip over a waste beaker and press Start The pump will dispense a small amount of titrant when it resets Place the stir bar in...

Page 28: ...pressing Plot ON Press Plot OFF to return to the titration screen At the end of the titration the concentration is displayed in the selected unit The titration curve can be viewed by pressing Plot ON...

Page 29: ...xceeds the specified limits the message Wrong input will be displayed and the pH or temperature reading will blink Another titration can be started by pressing Restart If an error with the stirrer occ...

Page 30: ...reading A message indicating the free log space will be displayed for a few seconds Ifmeasurementsaretakensuccessivelyindifferentsamples itisrecommendedtorinsetheelectrodesthoroughly withdeionizedordi...

Page 31: ...If the saved concentration was out of range the or symbols are displayed in front of the reading Press Delete to delete the selected log from the memory Press Del All to delete all records Press Info...

Page 32: ...letetherecordorNotoreturntothepreviousscreen Deletingasinglerecordwillrenumber the list of records If the titrator log is empty the message No records available will be displayed 11 2 METER The instru...

Page 33: ...a USB stick using the export function from the log recall menu Two text files are transferred on the USB stick These files can be used for further analysis on a PC The logged data can also be transfer...

Page 34: ...displayed 12 2 ELECTRODE The pH meter GLP screens display the last pH calibration data Press Electrode to view information regarding electrode calibration The following items are included in electrod...

Page 35: ...f range Check cable connection to meter and verify protective cap is off Check the quality of the sample Clean the electrodes Refill with fresh fill solution The meter does not accept the pH buffer so...

Page 36: ...rd or contact the vendor Error xx message is displayed Internal error Power off the meter and then power it on again If the error persists contact the vendor Stirrer error message is displayed at the...

Page 37: ...B pH electrode HI7662 T Temperature probe ELECTRODE FILL SOLUTION HI7082 Fill solution for HI1131B 4 x 30 mL ELECTRODE STORAGE SOLUTION HI70300L Electrode storage solution 500 mL ELECTRODE CLEANING SO...

Page 38: ...roduced by the user to the supplied equipment may degrade the meter s performance For yours and the meter s safety do not use or store the meter in hazardous environments WARRANTY HI84534 is warranted...

Page 39: ...Hanna Instruments reserves the right to modify the design construction or appearance of its products without advance notice...

Page 40: ...World Headquarters Hanna Instruments Inc Highland Industrial Park 584 Park East Drive Woonsocket RI 02895 USA www hannainst com MAN84534 Printed in ROMANIA...

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