Hanna Instruments HI 95734 Instruction Manual Download

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Instruction Manual

HI 95734

Free & Total Chlorine

High Range ISM

w w w . h a n n a c a n . c o m

This Instrument is in

Compliance with the CE Directives

Summary of Contents for HI 95734

Page 1: ...1 Instruction Manual HI 95734 Free Total Chlorine High Range ISM w w w h a n n a c a n c o m This Instrument is in Compliance with the CE Directives ...

Page 2: ...TE MEASUREMENT 11 OPERATIONALGUIDE 14 MEASUREMENT PROCEDURE 15 VALIDATIONPROCEDURE 17 CALIBRATION PROCEDURE 18 BATTERY REPLACEMENT 20 ACCESSORIES 21 CE DECLARATION OF CONFORMITY 21 WARRANTY 22 HANNA LITERATURE 22 USER NOTES 23 DearCustomer Thank you for choosing a Hanna product This manual will provide you with the necessary information for the correct use of the instrument Please read it carefull...

Page 3: ...during shipment please notify your Dealer Each HI 95734 Ion Selective Meter is supplied complete with Two Sample Cuvets and Caps 9V Battery Scissors Instruction Manual Rigid carrying case Note save all packing material until you are sure that the instrument works correctly Any defective item must be returned in its original packing ...

Page 4: ...lications Display codes aid the user in routine operation The meter has an auto shut off feature that will turn off the instrument after 10 minutes of non use or after 1 hour if left in the calibration mode The meter uses an exclusive positive locking system to ensure that the cuvet is in the same position every time it is placed into the measurement cell It is designed to fit a cuvet with a large...

Page 5: ... mode after 1 hour of non use in calibration mode Dimensions 180 x 83 x 46 mm 7 1 x 3 3 x 1 8 Weight 290 g 10 oz REQUIRED REAGENTS Code Unit Description Quantity test HI 93701 0 Free Total Cl2 DPDPowderReagent 1packet HI 93734B 0 Free Total Cl2 Free Total Cl2 Reagent 5 mL HI 93734C 0 Total Cl2 Total Cl2 Reagent 3 drops SPECIFICATIONS Precisionishowcloselyrepeatedmeasurementsagree witheachother Pre...

Page 6: ... 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...

Page 7: ... is zeroed and then the actual measurementisperformed The cuvet has a very important role because it is an optical element and thus requires particular attention It is important that both the measurement and the calibration zeroing cuvets are optically identical to provide the same measurement conditions Whenever possible use the same cuvet for both It is necessary that the surface of the cuvet is...

Page 8: ...ion of the instrument just pressing the CAL CHECK key or hold the key for 3 seconds to enter the calibration mode OPERATING MODES Measurement mode default operation mode enables both validation and measurement Calibration mode may be entered by keeping CAL CHECK pressedfor three seconds the CAL icon appears it enables calibration of the instrument DISPLAY ELEMENTS DESCRIPTION 1 four digit main dis...

Page 9: ... installed then contact your dealer or the nearest Hanna Customer ServiceCenter The blinking BAT indicates that the battery voltage is getting low and the battery needs to be replaced This indicates that the battery is dead and must be replaced Once this indication is displayed the meter will lock up Change the batteryandrestart Configuration this indicates that the meter has lost its configuratio...

Page 10: ...ESSAGES a on zero reading Thisindicatesthatthezeroingprocedurefailedduetoalowsignal to noiseratio InthiscasepressZEROagain NoLight theinstrumentcannotadjustthelightlevel Pleasecheck thatthesampledoesnotcontainanydebris LightLow thereisnotenoughlighttoperformameasurement Pleasecheckthepreparationofthezerocuvet LightHigh thereistoomuchlighttoperformameasurement Pleasecheckthepreparationofthezerocuve...

Page 11: ... followed during testing to ensure best accuracy Color or suspended matter in large amounts may cause interference therefore these should be removed by treatment with active carbon and by prior filtration For a correct filling of the cuvet the liquid in the cuvet forms a convexity on the top the bottom of this convexity must be at the same level of the 10 mLmark It is important that the sample doe...

Page 12: ...m Then keeping the syringe in vertical position above the cuvet push the plunger completely down into the syringe Now the exact amount of 5 mL has been added to the cuvet Proper use of the dropper a to get good reproducible results tap the dropper on the table for several times and wipe the outside of the dropper tip with a cloth b always keep the dropper bottle in a vertical position while dosing...

Page 13: ...ake a new zero reading for each sample and to use the same cuvet for zeroing and measurement After the reading it is important to discard immediately the sample otherwise the glass might become permanently stained All the reaction times reported in this manual are referred to 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 In order to maximize accur...

Page 14: ...hree seconds until the key is released Select the programforfreechlorine 734f ortotalchlorine 734t After the desired parameter code appears on the display perform either MEASUREMENT VALIDATION or CALIBRATION PROCEDURE following the instructions reported in the related chapter Code Parameter 734f FreeChlorine 734t TotalChlorine or Important Note Free and Total Chlorine have to be measured separatel...

Page 15: ...p to the 10 mL mark with 5 mL of unreacted sample using the 3 mL plastic pipette Note rinse the 3 mL plastic pipette several times with sample before adding it to the cuvet Replace the cap and shake gently for some seconds Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into thegroove Press ZERO SET and SIP will blink on the display After afew secondsthe...

Page 16: ... Chlorine 1 minute 2 minutes and 30 seconds Then press READ TIMER In both cases SIP will blink during measurement The instrument directly displays concentration in mg L of free or total chlorine on the Display or INTERFERENCES Bromine positiveerror OxidizedManganeseandChromium positiveerror Chlorinedioxide positiveerror Ozone positiveerror Iodine positiveerror Alkalinity above 250 mg L CaCO3 or ac...

Page 17: ... on the cap is positioned securely into the groove Press CAL CHECK and SIP will blink during measurement Wait for a few seconds and 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 cuvets are free of fingerprints oil or dirt and repeat v...

Page 18: ...dard Cuvet A into the holder and ensure that the notch on the cap is positioned securely into the groove Press ZERO and SIP will blink on the display After a few seconds the display will show 0 0 The meter is now zeroed and ready for calibration Removethecuvet Place the CAL CHECK Standard HI 95734 11 Cuvet B into the holder and ensure that the notch on the cap is positioned securely into the groov...

Page 19: ...ey are insertedcorrectly DATE INPUT KeepREAD TIMERpressedtoscrolltothedesired month number 01 12 When the correct month has been set press ZERO to confirm Now the display will show the daynumberblinking KeepREAD TIMERpressed to scroll to the desired day number 01 31 Note it is possible to change from day to month and vice versa by pressing ZERO When both the day and month have been selected hold C...

Page 20: ...rrectpolarity Insertthebatteryandreplace thecover 9V SLIDE OFF BATTERY REPLACEMENT or FACTORY CALIBRATION RESET Itispossibletorestorefactorycalibration EnterthecalibrationmodebyholdingCALCHECK for three seconds Hold ZERO SET for 10 seconds The display will show for 2 seconds F CAL and the parameter code 734f or 734t appears The factory calibration is automatically restored and the instrument is re...

Page 21: ...uments EMC performance To avoid damages or burns do not put the instrument in microwave ovens For yours and the instrument safetydonotuseorstoretheinstrumentin hazardous environments CE DECLARATION OF CONFORMITY REAGENT SETS HI 93734 01 Reagents for 100 Free or Total Chlorine tests HI 93734 03 Reagents for 300 Free or Total Chlorine tests OTHER ACCESSORIES HI 95734 11 CAL CHECK Standard Cuvets 1 s...

Page 22: ...rranty is limited to repair or replacement free of charge Damages due to accident misuse tampering or lack of prescribed maintenance are not covered If service is required contact your dealer 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 Iftheinstrument...

Page 23: ...23 USER NOTES Date ValidationValue mg L Calibration yes not ParameterCode Passed yes not ...

Page 24: ...24 MAN95734R1 08 02 w w w h a n n a c a n c o m ...

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