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22 

• Press 

GLP/

 to edit the desired month (01‑12). If the key is kept pressed, the month number 

is automatically increased.

•  When the correct month has been set, press 

ZERO/CFM

 or 

READ /TIMER

 to confirm. Now 

the display will show the day blinking.

• Press 

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 

READ  /TIMER.

• Press 

ZERO/CFM

 to save the calibration date.

•  The instrument displays 

“Stor”

 for one second and the calibration is saved.

CALIBRA

TION PROCEDURE

or

Summary of Contents for HI96713C

Page 1: ...INSTRUCTION MANUAL HI96713C Phosphate Low 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 hannainst com All rights are reserved Reproduction in whole or in part is prohibited without the written consent of the copyright owner Hanna Instruments Inc Woonsocket Rhode Island 02895 USA Dear Cust...

Page 3: ...Y PRINCIPLE OF OPERATION FUNCTIONAL DESCRIPTION ERRORS AND WARNINGS GENERAL TIPS FOR AN ACCURATE MEASUREMENT STARTUP MEASUREMENT PROCEDURE VALIDATION PROCEDURE CALIBRATION PROCEDURE GLP BATTERY MANAGEMENT BATTERY REPLACEMENT ACCESSORIES 4 5 6 7 10 13 17 23 25 5 6 8 12 13 19 25 26 TABLE OF CONTENTS ...

Page 4: ... Meter is supplied complete with Sample Cuvettes and Caps 2 pcs CAL Check standard cuvettes 9V Battery Scissors Cloth for wiping cuvettes Instrument quality certificate Instruction Manual and Quick Reference Guide 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 PRELIMINARY EXAMINAT...

Page 5: ... transparent cup This makes the instruments fulfill field applications Display 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 calibration mode The meter uses an exclusive positive locking system to ensure that the cuvette is in the same position every time...

Page 6: ...TIONS Range 0 00 to 2 50 mg L Resolution 0 01 mg L Accuracy 25 C 77 F 0 04 mg L 4 of reading Light Source Tungsten lamp Light Detector Silicon Photocell with narrow band interference filter 610 nm Method Adaptation of the ascorbic acid method The reaction between phosphate and the reagent causes a blue tint in the sample Environment 0 to 50 C 32 to 122 F max 95 RH non condensing Battery Type 9V 1 ...

Page 7: ...elength λ 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 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 stric...

Page 8: ...suring unit and to display it on the LCD The measurement 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 particular attention It is important that both the measurement and the calibration zeroing cuvettes are optically identical to provide the same me...

Page 9: ...date and time OPERATING MODES Measurement mode default operation mode enables both validation and measurement Calibration mode may be entered by keeping CAL Check pressed for three seconds the CAL tag appears it enables calibration of the instrument GLP mode may be entered by pressing GLP GLP appears it enables consulting of user calibration date or restore factory calibration DISPLAY ELEMENTS DES...

Page 10: ...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 Inverted cuvettes The sample and the zero cuvette are inverted Zero A zero reading was not taken Follow the instructions of the measurement procedure for zeroing the meter b on sample reading Under Range A blinking 0 00 indicates t...

Page 11: ...tandard reading is higher than expected Cap error Appears when external light enters in the analysis cell Assure that the cuvette cap is present Cooling lamp The instrument waits for the lamp to cool down d other errors and warnings Battery low The battery must be replaced soon Dead battery This indicates that the battery is dead and must be replaced Once this indication is displayed normal operat...

Page 12: ...n any debris This would corrupt the reading Each time the cuvette is used the cap must be tightened to the same degree Whenever the cuvette is placed into the measurement cell it must be dry outside and completely free of fingerprints oil or dirt Wipe it thoroughly with HI731318 or a lint free cloth prior to insertion Shaking the cuvette can generate bubbles in the sample causing higher readings T...

Page 13: ...nt as follows Unpack the instrument by removing the dust protection sleeve from the instrument cuvette holder Place the battery in the instrument as described in the BATTERY REPLACEMENT chapter Place the instrument on a flat table Do not place the instrument under direct sun light To compensate the meter for the sample turbidity or color the measurement takes place in two phases First the meter is...

Page 14: ... the lamp cuvette and detector icons will appear on the display depending on the measurement phase After a few seconds the display will show 0 0 The meter is now zeroed and ready for measurement Remove the cuvette Add one packet of the HI93713 0 reagent 0 Fill one cuvette with 10 mL of unreacted sample up to the mark MEASUREMENT PROCEDURE ...

Page 15: ...ned securely into the groove Press and hold READ TIMER for three seconds The display will show the countdown prior to measurement An audible beep indicates the end of the countdown period Alternatively wait for 3 minutes then just press READ TIMER In all cases the lamp cuvette and detector icons will appear on the display depending on the measurement phase MEASUREMENT PROCEDURE 3 ...

Page 16: ...de P2 O5 multiply by a factor of 0 747 To convert the reading to mg L of phosphorus P concentration multiply by a factor of 0 326 INTERFERENCES Interference may be caused by Iron above 50 mg L Silica above 50 mg L Silicate above 10 mg L Copper above 10 mg L Hydrogen sulfide arsenate turbid sample and highly buffered samples also interfere MEASUREMENT PROCEDURE ...

Page 17: ...by pressing ON OFF When the beeper sounds briefly and the LCD displays dashes the meter is ready The blinking ZERO indicates that the instrument needs to be zeroed first Place the CAL CheckTM Standard HI96713 11 Cuvette A into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove Press ZERO CFM and the lamp cuvette and detector icons will appear on the disp...

Page 18: ...rtificate If the value is found out of the specifications please check that the cuvettes are free of fingerprints oil or dirt and repeat validation If results are still found out of specifications then recalibrate the instrument After a few seconds the display will show 0 0 The meter is now zeroed and ready for validation Remove the cuvette Place the CAL CheckTM Standard HI96713 11 Cuvette B into ...

Page 19: ...ained Turn the meter on by pressing ON OFF When the beeper sounds briefly and the LCD displays dashes the meter is ready Press and hold CAL Check for three seconds to enter calibration mode The display will show CAL during calibration procedure The blinking ZERO asks for instrument zeroing Place the CAL CheckTM Standard HI96713 11 Cuvette A into the cuvette holder and ensure that the notch on the ...

Page 20: ... meter is now zeroed and ready for calibration The blinking READ asks for reading calibration standard Remove the cuvette Place the CAL CheckTM Standard HI96713 11 Cuvette B into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove Press READ TIMER and the lamp cuvette and detector icons will appear on the display depending on the measurement phase ...

Page 21: ...or dirt and that they are inserted correctly Then the date of the last calibration e g 01 08 2009 appears on the display or 01 01 2009 if the factory calibration was selected before In both cases the year number is blinking ready for date input CALIBRATION PROCEDURE DATE INPUT Press GLP to edit the desired year 2009 2099 If the key is kept pressed the year number is automatically increased When th...

Page 22: ...rm Now the display will show the day blinking Press 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 READ TIMER Press ZERO CFM to save the calibration date The instrument displays Stor for one second and the calibration is saved CALIBRATION PROCEDURE or ...

Page 23: ...appear on the main display and the instrument returns to measurement mode after three seconds In GLP mode the last calibration date can be verified and the factory calibration can be restored LAST CALIBRATION DATE The instrument will return automatically to measurement mode by displaying dashes on the LCD GLP It is possible to delete the calibration and restore factory calibration Press GLP to ent...

Page 24: ...ument asks for confirmation of user calibration delete Press ZERO CFM to restore the factory calibration or press GLP again to abort factory calibration restore The instrument briefly indicates donE upon restoration of factory calibration prior to returning to measurement mode GLP ...

Page 25: ... a battery indicator with three levels as follows 3 lines for 100 capacity 2 lines for 66 capacity 1 line for 33 capacity Battery icon blinking if the capacity is under 10 If the battery is empty and accurate measurements can t be taken anymore the instrument shows dEAd bAtt and turns off To restart the instrument the battery must be replaced with a fresh one BATTERY MANAGEMENT Turn the instrument...

Page 26: ...er Accessories HI96713 11 CAL CheckTM Standard Cuvettes 1 set HI740029P 9V battery 10 pcs HI731318 Cloth for wiping cuvettes 4 pcs HI731331 Glass cuvettes 4 pcs HI731335 Caps for cuvettes 4 pcs HI93703 50 Cuvette cleaning solution 230 mL HI740318 Carrying case ACCESSORIES MAN96713 01 18 ...

Page 27: ...mited 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 local Hanna Instruments Office 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 ...

Page 28: ...na 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 800 426 6287 Fax 401 765 7575 e mail tech hannainst com ...

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