Hanna Instruments HI96718C Скачать руководство пользователя страница 13 | Manualshive

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Hanna Instruments HI96718C Скачать руководство пользователя страница 13

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HI93718-0

HI93718-0

HI93718-

0

GENERAL TIPS FOR AN ACCURA

TE MEASUREMENT

The instructions listed below should be carefully 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 cuvette: the liquid in the cuvette forms a concavity on the top; the

bottom of this concavity must be at the same level of the 10 mL mark.

• Proper use of the powder 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 debris. This would corrupt the reading.
• Each time the cuvette is used, the cap must be tightened to the same degree.

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Содержание HI96718C

Страница 1: ...1 INSTRUCTION MANUAL HI96718C Iodine ISM ...

Страница 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 Dear Customer 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...

Страница 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 TABLE OF CONTENTS 4 5 6 7 11 14 18 24 26 6 9 13 15 20 25 26 5 ...

Страница 4: ...Ion Selective 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 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 EXAMINATION ...

Страница 5: ...fill 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 it is placed into the measurement cell It is d...

Страница 6: ...mode after 1 hour of non use in calibration mode with last reading reminder Dimensions 192 x 104 x 69 mm 7 6 x 4 1 x 2 7 Weight 320 g 11 3 oz REQUIRED REAGENTS Code Description Quantity test HI93718 0 DPD Powder Reagent 1 packet Precision is how closely repeated measurements agreewitheachother Precisionisusuallyexpressed as standard deviation SD Accuracy is defined as the nearness of a test result...

Страница 7: ...ar 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 on ...

Страница 8: ...ement 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 measurement conditions Whenever possible use the same...

Страница 9: ...restore factory calibration KEYPAD DESCRIPTION ON OFF to turn the meter on and off ZERO CFM to zero the meter prior to measurement or to confirm edited values or to confirm factory calibration 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 measurement In GLP mode pres...

Страница 10: ...ngs 3 The battery icon shows the charging level of the battery 4 The hourglass appears when an internal checking is in progress 5 Status messages 6 The chronometer appears when the reaction timer is running 7 The month day and date icons appear when a date is displayed 8 Four digit main display 9 Measuring units 10 Four digit secondary display FUNCTIONAL DESCRIPTION ...

Страница 11: ... 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 0 indicates that the sample absorbs less light than the zero reference Check the procedure and make sure you ...

Страница 12: ...rnings 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 the meter will lock up Change the battery and restart the meter ERRORS AND WARNINGS Standard Low The standard reading is less than expected Standard High The standard reading is higher than expected c during calibration procedure ...

Страница 13: ...by prior filtration For a correct filling of the cuvette the liquid in the cuvette forms a concavity on the top the bottom of this concavity must be at the same level of the 10 mL mark Proper use of the powder 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 a...

Страница 14: ...e should be increased for temperatures lower than 20 C 68 F and decreased for temperatures higher than 25 C 77 F In order to maximize accuracy prior to a measurement follow the validation procedure to be sure that the instrument is properly calibrated If necessary calibrate the instrument GENERAL TIPS FOR AN ACCURATE MEASUREMENT Prepare the instrument for measurement as follows Unpack the instrume...

Страница 15: ...CEDURE 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 Fill the cuvette with 10 mL of unreacted sample up to the mark and replace the cap Place the cuvette into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove Turn the meter on by pressing ON OFF The ...

Страница 16: ... will show 0 0 The meter is now zeroed and ready for measurement Remove the cuvette Add the content of one packet of HI93718 0 Iodine reagent Replace the cap and shake gently for about 20 seconds to dissolve most of the reagent Replace the cuvette into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove MEASUREMENT PROCEDURE ...

Страница 17: ... forms of chromium and manganese Alkalinity above 250 mg L and acidity above 150 mg L as CaCO3 require neutralization since the color could instantly fade To resolve this neutralize the sample with diluted HCl or NaOH In case of water with hardness greater than 500 mg L CaCO3 shake the sample for approximately 2 minute after adding the reagent Alternatively wait for 2 minutes and 30 seconds then j...

Страница 18: ...vette holder and ensure that the notch on the cap is positioned securely into the groove When the beeper sounds briefly and the LCD displays dashes the meter is ready VALIDATION PROCEDURE Use the validation procedure to ensure that the instrument is properly calibrated Warning DonotvalidatetheinstrumentwithanystandardsolutionsotherthantheHannaInstruments CAL Check Standards otherwise erroneous res...

Страница 19: ...ctor icons together with CAL Check will appear on the display depending on the measurement phase At the end of the measurement the display will show the validation standard value The reading should be within specifications as reported in the CAL CheckTM Standard Certificate If the value is found out of the specifications please check that the cuvettes are free of fingerprints oil or dirt and repea...

Страница 20: ...6718 11 Cuvette A into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove Note It is possible to interrupt calibration procedure at any time by pressing CAL CHECK or ON OFF keys Warning Do not calibrate the instrument with standard solutions other than the Hanna Instruments CAL Check Standards otherwise erroneous results will be obtained CALIBRATION PROC...

Страница 21: ...into the groove Press READ TIMER and the lamp cuvette and detector icons will appear on the display depending on the measurement phase CALIBRATION PROCEDURE After measurement the instrument will show for three seconds the CAL CheckTM Standard value Note If the display shows STD HIGH the standard value was too high If the display shows STD LOW the standard value was too low Verify that both CAL Che...

Страница 22: ...is blinking ready for date input DATE INPUT Press GLP to edit the desired year 2000 2099 If the key is kept pressed the year number is automatically increased When the correct year has been set press ZERO CFM or READ TIMER to confirm Now the display will show the month blinking or Press GLP to edit the desired month 01 12 If the key is kept pressed the month number is automatically increased ...

Страница 23: ...blinking or 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 The instrument will return automatically to measurement mode by displaying dashes on the LCD The instrument displays Stor for one second and the calibration is saved ...

Страница 24: ...restored LAST CALIBRATION DATE GLP If no calibration was performed the factory calibration message F CAL will appear on the main display and the instrument returns to measurement mode after three seconds It is possible to delete the calibration and restore factory calibration Press GLP to enter GLP mode FACTORY CALIBRATION RESTORE Press READ TIMER to enter in the factory calibration restore screen...

Страница 25: ...layed when the instrument 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 evaluated at the instrument startup and after each measurement The instrument displays a battery indicator with three levels as follows 3 lines for 100 capacity 2 lines for 66 capacity...

Страница 26: ...Caps for cuvettes 4 pcs HI93703 50 Cuvette cleaning solution 230 mL HI740318 Carrying case ACCESSORIES MAN96718 01 18 Turn the instrument off by pressing ON OFF Turn the instrument upside down and remove the battery cover by turning it counterclockwise Extract the battery from its location and replace it with a fresh one Insert back the battery cover and turn it clockwise to close To replace the i...

Страница 27: ...turned to Hanna Instruments first obtain a Returned Goods Authorization Number from the Customer Service Department and then send it with shipment costs prepaid When 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 Before using these products make sure ...

Страница 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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