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PRELIMINARY EXAMINATION ............................................................................................
GENERAL DESCRIPTION ....................................................................................................
ABBREVIATIONS ..............................................................................................................
SPECIFICATIONS ..............................................................................................................
PRECISION AND ACCURACY ..............................................................................................
PRINCIPLE OF OPERATION ...............................................................................................
FUNCTIONAL DESCRIPTION ...............................................................................................
ERRORS AND WARNINGS .................................................................................................
GENERAL TIPS FOR AN ACCURATE MEASUREMENT .............................................................
STARTUP ........................................................................................................................
RANGE SELECTION............................................................................................................
MEASUREMENT PROCEDURE ............................................................................................
VALIDATION PROCEDURE .................................................................................................
CALIBRATION PROCEDURE ...............................................................................................
GLP ................................................................................................................................
BATTERY MANAGEMENT ...................................................................................................
BATTERY REPLACEMENT ...................................................................................................
ACCESSORIES ..................................................................................................................

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TABLE OF CONTENTS

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Summary of Contents for HI96750C

Page 1: ...INSTRUCTION MANUAL HI96750C Potassium Low Range Medium Range ISM...

Page 2: ...the instrument as well as a precise idea of its versatility If you need additional technical information do not hesitate to e mail us at tech hannainst com or view our worldwide contact list at www ha...

Page 3: ...OF OPERATION FUNCTIONAL DESCRIPTION ERRORS AND WARNINGS GENERAL TIPS FOR AN ACCURATE MEASUREMENT STARTUP RANGE SELECTION MEASUREMENT PROCEDURE VALIDATION PROCEDURE CALIBRATION PROCEDURE GLP BATTERY M...

Page 4: ...complete with Sample Cuvettes and Caps 2 pcs CAL CheckTM standard cuvettes 9V Battery Scissors 1000 L automatic pipette with tip Cloth for wiping cuvettes Instrument Quality Certificate Instruction Ma...

Page 5: ...ay messages 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 in measurement mode or after 1 hour if left in calibr...

Page 6: ...MR Resolution 0 1 mg L Accuracy 25 C 77 F LR 1 5 mg L 7 of reading MR 15 mg L 7 of reading Light Source Light Emitting Diode Light Detector Silicon Photocell with narrow band interference filter 466 n...

Page 7: ...ngth c 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 Pho...

Page 8: ...process is carried out in two phases first the meter is zeroed and then the actual measurement is performed The cuvette has a very important role because it is an optical element and thus requires par...

Page 9: ...alibration restore READ TIMER this is a multi functional key In measurement mode press to make a measurement or press and hold for three seconds to start a pre programmed countdown prior to measuremen...

Page 10: ...ser calibration date or restore factory calibration DISPLAY ELEMENTS DESCRIPTION 1 The measuring scheme lamp cuvette detector appears during different phases of zero or reading measurement 2 Error mes...

Page 11: ...surement Please check the preparation of the zero cuvette No Light The instrument cannot adjust the light level Please check that the sample does not contain any debris ERRORS AND WARNINGS Inverted cu...

Page 12: ...dard High The standard reading is higher than expected Cap error Appears when external light enters in the analysis cell Assure that the cuvette cap is present d other errors and warnings Cooling lamp...

Page 13: ...r reagent packet a use scissors to open the powder packet b push the edges of the packet to form a spout c pour out the content of the packet It is important that the sample does not contain any debri...

Page 14: ...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 25 C 77 F In general the reaction...

Page 15: ...sure 0 0 10 0 mg L Potassium when range P1 is selected and 10 100 mg L Potassium when range P2 is selected Note Sample dilution is required when the P2 Potassium MR is selected To change the range fol...

Page 16: ...indicates that the instrument needs to be zeroed first Pay attention to the selected range To change the range simply press RANGE GLP Note If P2 is used a sample dilution is required see below Fill t...

Page 17: ...ountdown period to alert the user Alternatively wait for 3 minutes Invert the cuvette for 5 times replace the cuvette into the cuvette holder and ensure that the notch on the cap is positioned securel...

Page 18: ...demineralized water if needed Note The ion exchange resin contained in the Demineralizer Bottle is provided with an indicator substance The indicator will change from green to blue when the resin has...

Page 19: ...is now zeroed and ready for validation Remove the cuvette PlacetheCAL CheckTM Standard HI96750 11 Cuvette B into the cuvette holder and ensure that the notch on the cap is positioned securely into the...

Page 20: ...ration mode The display will show CAL during calibration procedure The blinking ZERO asks for instrument zeroing Press CAL CHECK and the lamp cuvette and detector icons together with CAL CHECK will ap...

Page 21: ...ase After a few seconds the display will show 0 0 The meter is now zeroed and ready for calibration The blinking READ asks for reading calibration standard Remove the cuvette Place the CAL CheckTM Sta...

Page 22: ...dirt and that they are inserted correctly Then the date of the last calibration e g 01 08 2008 appears on the display or 01 01 2008 if the factory calibration was selected before In both cases the yea...

Page 23: ...ess RANGE GLP to edit the desired day 01 31 If the key is kept pressed the day number is automatically increased Note It is possible to change the editing from day to year and to month by pressing REA...

Page 24: ...ar on the secondary display In the GLP mode the last user calibration date can be verified and the factory calibration can be restored LAST CALIBRATION DATE If no calibration was performed the factory...

Page 25: ...ent is switched on The blinking ZERO means that a new zero has to be performed One fresh battery lasts for around 750 measurements depending on the light level The remaining battery capacity is evalua...

Page 26: ...h one Insert back the battery cover and turn it clockwise to close BATTERY REPLACEMENT HI93750 01 Reagents for 100 test HI93750 03 Reagents for 300 tests Other Accessories HI96750 11 CAL Check Standar...

Page 27: ...ed according to the instructions This warranty 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...

Page 28: ...a Instruments Inc Highland Industrial Park 584 Park East Drive Woonsocket RI 02895 USA www hannainst com Local Office Hanna Instruments USA 270 George Washington Highway Smithfield RI 02917 Phone 800...

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