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Hanna Instruments HI97736, Instruction Manual, Page: 25 / 36

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25

METHOD PROCEDURE

• Press the 

 key and use the functional keys to select 

Chemical Form

.

 

• Use the functional keys and press 

Select

 to change the displayed chemical formula 

to 

French degrees (°f)

, 

German degrees (°dH)

 and 

English degrees (°E)

.

 

 

INTERFERENCES

Interference may be caused by:
• Excessive amounts of heavy metals

Summary of Contents for HI97736

Page 1: ...INSTRUCTION MANUAL HI97736 Total Hardness pH Photometer...

Page 2: ...a Hanna Instruments product Pleasereadthisinstructionmanualcarefullybeforeusingthisinstrument This manual will provide you with the necessary information for correct use of this instrument as well as...

Page 3: ...ION 11 6 2 CHEMICAL FORMULA UNIT CONVERSION 13 6 3 GLP 13 6 4 LOGGING DATA LOG RECALL 13 6 5 GENERAL SETUP 14 6 6 REAGENTS ACCESSORIES 17 6 7 CONTEXTUAL HELP 17 6 8 BATTERY MANAGEMENT 18 7 PHOTOMETER...

Page 4: ...Cuvette B for pH HI97719B CAL Check Cuvette B for Magnesium Hardness and Total Hardness Cloth for wiping cuvettes 1 5V AA Alkaline batteries CAL Check standard certificate Instrument quality certific...

Page 5: ...d rinse with plenty of water If reagent contacts skin rinse the affected area thoroughly with water Avoid breathing released vapors Waste disposal For proper disposal of reagent kits and reacted sampl...

Page 6: ...Measurement System Light source Light Emitting Diode Bandpass filter 525 nm Bandpass filter bandwidth 8 nm Bandpass filter wavelength accuracy 1 0 nm Light detector Silicon photocell Cuvette type Roun...

Page 7: ...are made with NIST traceable standards The built in tutorial mode guides users step by step through the measurement process It includes all steps required for sample preparation the required reagents...

Page 8: ...ver Keypad Description The keypad contains 3 direct keys and 3 functional keys with the following functions Press the functional key to perform the function displayed above it on the LCD Press and hol...

Page 9: ...on may be absorbed by atoms molecules or crystal lattices Photometric chemical analysis is based on specific chemical reactions between a sample and reagent to produce a light absorbing compound If pu...

Page 10: ...luminous efficiency providing more light while using less power They also produce little heat which could otherwise affect electronic stability LEDs are available in a wide array of wavelengths wherea...

Page 11: ...ttes from direct sunlight by keeping them in the original packing Store between 5 and 30 C 41 to 86 F do not freeze To perform a CAL Check 1 Press the key to enter menu Use the functional keys to sele...

Page 12: ...alue obtained during the measurement PASSED The measured value is within the accuracy specification no user calibration is required OUT OF SPECIFICATION and Calibrate is available The measured value i...

Page 13: ...ect GLP and press Select Good Laboratory Practice GLP shows the date and time of the last user calibration if available or factory calibration To erase the last user calibration and to clear the CAL C...

Page 14: ...ressYestodeleteallloggeddata Noorthe keytoreturntothelogrecall 6 5 GENERAL SETUP Press the key to enter the menu Use the functional keys to select Setup and press Select Use the functional keys to hig...

Page 15: ...key to return to the previous screen Time Format Option AM PM or 24 hour Press the functional key to select the desired time format Date Format Press Modify to change the date format Use the function...

Page 16: ...d key is not active or an error is detected Press the functional key to enable or disable the beeper Tutorial Option Enable or Disable When enabled the user will be guided step by step through the mea...

Page 17: ...s the key 6 7 CONTEXTUAL HELP The HI97736 offers an interactive contextual help mode that assists the user at any time To access the help screen press the key The instrument will display additional in...

Page 18: ...ostic test was successful the meter is ready for use The battery icon on the LCD will indicate the battery status battery full battery below 10 replace the batteries soon battery is low replace the ba...

Page 19: ...o the solution 2 Pull the plunger up until the lower edge of the seal is exactly on the mark for the desired volume 3 Take out the syringe and clean the outside of the syringe tip be sure that no drop...

Page 20: ...accurate measurements close the cuvette first with the supplied HDPE plastic stopper and then the black cap Whenever the cuvette is placed into the measurement holder it must be dry outside and free o...

Page 21: ...take a new zero reading for each sample and to use the same cuvette for zeroing and measurement when possible Discard the sample immediately after the reading has been taken or the glass might become...

Page 22: ...dness Reagent 300 tests For other accessories see ACCESSORIES section MEASUREMENT PROCEDURE Select the Total Hardness method using the procedure described in the METHOD SELECTION section Note If tutor...

Page 23: ...esium Hardness Reagent D to the second cuvette Replace the plastic stopper and the cap Swirl to mix the solution This is the magnesium hardness sample cuvette 2 Replace the plastic stopper and the cap...

Page 24: ...trument displays concentration in mg L of magnesium hardness CaCO3 Remove the cuvette Insert the cuvette 3 calcium hardness sample into the holder and ensure that the notch on the cap is positioned se...

Page 25: ...nal keys to select Chemical Form Use the functional keys and press Select to change the displayed chemical formula to French degrees f German degrees dH and English degrees E INTERFERENCES Interferenc...

Page 26: ...in the METHOD SELECTION section Note If tutorial mode is disabled follow the measurement procedure below If the tutorial mode is enabled press Measure and follow the messages on the screen Fill the c...

Page 27: ...dicator Replace the plastic stopper and the cap Swirl to mix the solution Insert the cuvette into the holder and ensure that the notch on the cap is positioned securely in the groove Press Read and th...

Page 28: ...the zero cuvettes are inverted Swap the cuvettes and repeat the measurement There is either too much light or the instrument can not adjust the light level Please check the preparation of the zero cu...

Page 29: ...e meter If the issue persists please contact Hanna Instruments technical support Battery level is too low for the meter to function properly Replace the batteries with new ones Tutorial mode has been...

Page 30: ...nt s batteries follow these steps Turn the instrument off by pressing and holding the key Remove the battery cover by turning it counterclockwise Remove the old batteries replace them with three new 1...

Page 31: ...carrying case for HI977xx and 3 CAL Check cuvettes HI731318 cloth for wiping cuvettes 4 pcs HI731331 glass cuvette 4 pcs HI731336N cap for glass cuvette 4 pcs HI740034P cap for 100 mL beaker 10 pcs HI...

Page 32: ...ste Hand them over to the appropriate collection point for recycling Ensuring proper product and battery disposal prevents potential negative consequences fortheenvironmentandhumanhealth Formoreinform...

Page 33: ...equired contact your local Hanna Instruments Office If under warranty report the model number date of purchase serial number engraved on the bottom of the meter and the nature of the problem If the re...

Page 34: ...34 MAN97736 12 19...

Page 35: ...Hanna Instruments reserves the right to modify the design construction or appearance of its products without advance notice...

Page 36: ...World Headquarters Hanna Instruments Inc Highland Industrial Park 584 Park East Drive Woonsocket RI 02895 USA www hannainst com MAN97736 Printed in ROMANIA...

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