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• Press the 

s

 or 

t

 keys to select the new baud

rate value.

• Press 

LOG/CFM

 to save the change. The new

selected baud rate will be displayed.
Alternatively, press 

CAL

 to exit without saving

the changes.

LCD BACKLIGHT

The LCD can be illuminated to allow the user to see the readings even in dark
environments.
To turn ON or OFF the backlight, press 

LIGHT

.

The backlight will automatically shut-off after 25 seconds of non-use to
save the battery life.

TAG INSTALLATION

The tag is housed in a rugged metal that can withstand harsh environments. However, it is better
to protect the tag from direct rain.
Place the tag near a sampling point. Fix it securely with the provided screws, in such a way that
the metallic iButton

®

 is easily accessible for reading the tag.

The number of tags that can be installed is practically unlimited. Additional tags can be ordered
(

HI 920005

 - five tag holders with tags).

www.

.com

[email protected]

1.800.561.8187

Summary of Contents for HI 98703

Page 1: ...1 HI 98703 Portable Turbidimeter Instruction Manual www com information itm com 1 800 561 8187...

Page 2: ...rldwide contact list at www hannainst com HI 98703 is guaranteed for two years against defects in workmanship and materials when used for its intended purpose and maintained according to instructions...

Page 3: ...ng the cuvettes Five Tag holders with Tags HI 920005 Batteries 4 pcs AC Adapter Instruction Manual Instrument Quality Certificate Rigid carrying case Note Save all packing material until you are sure...

Page 4: ...NTU adjustable calibration points using the supplied or user prepared standards HI 98703 has complete GLP Good Laboratory Practice functions that allows traceability of the calibration conditions The...

Page 5: ...eter to take measurements and memorize the test result by pressing the Log on Demand key Then the instrument will ask for the tag identification Simply touching the iButton with the matching connector...

Page 6: ...703 is based on a state of the art optical system that guarantee both high performance and reliable results This optical system includes a tungsten filament lamp a scattered light detector 900 and a t...

Page 7: ...are not considered very accurate To obtain more accurate readings a nephelometer should be used as a turbidity reading instrument The HI 98703 turbidimeter reports the measurements only in NTU Nephelo...

Page 8: ...se mark 3 Liquid Crystal Display LCD The LCD has backlight for better visibility in dark environments 4 Keypad Splash proof resistant 5 Lamp connector Connect the new lamp using a screwdriver during l...

Page 9: ...irm the selected option 15 READ u press to start a measurement Press and hold to make a continuous measurement In Log Recall it is used to see the content of a record In GLP it is used to see all avai...

Page 10: ...essages are displayed 6 Measurement units The turbidity is measured in NTU When average or continuous mode is selected the NTU tag blinks for each new displayed value For conversions in other units se...

Page 11: ...n Photocell Method Ratio Nephelometric signal 90 scatter light ratio transmitted light Adaptation of the USEPA Method 180 1 and Standard Method 2130 B Display 60 x 90 mm LCD with backlight Standards 1...

Page 12: ...ng only the cap or its top side over the horizontal line Always store the cuvettes in separate boxes or with separators between them to avoid scratches on the surface CUVETTE PREPARATION Whenever a cu...

Page 13: ...ing procedures the cloth will contain enough oil to wipe the bottle with it without adding more oil From time to time add some drops of oil on the cuvette to provide the necessary oil quantity in the...

Page 14: ...lid slightly rotate the cuvette and take a new reading Repeat the last step until you read the lowest NTUvalue Alternatively keepREADupressed and after the first value is displayed open the lid and st...

Page 15: ...reading Record the position of the cuvette and the displayed reading Mark this position on the thicker white band on the top of the cuvette with a water resistant pencil Insert the second cuvette into...

Page 16: ...scard the first few liters If measuring a non uniform source collect samples from different places and mix them When measuring the collected sample keep in mind the following Samples should be analyze...

Page 17: ...may foam If you are using the same cuvette rinse it before adding a new sample in order to avoid surfactant accumulation Surfactant contribution to the turbidity readings is negligible Note Surfactant...

Page 18: ...acteristics can change Therefore the heating procedure should be used with extreme care The best way is to use a warm water bath and immerse the cuvette with sample into the bath Heat the sample only...

Page 19: ...influence the reading Place the cuvette into the instrument Align the mark from the cuvette with the sign on the instrument case and close the lid Note If you have a cuvette with orientation mark pla...

Page 20: ...irst value is displayed after about 10 seconds and then a new reading is displayed each second In order to make a continuous measurement keep READ u pressed until the desired number of measurements ar...

Page 21: ...tomatically selects the correct range to display the results with the highest accuracy If the measured value is higher than 1000 NTU over range the display will show the maximum value blinking The ins...

Page 22: ...ramine CH2 6 N4 in distilled deionized water and dilute to 100 mL in a volumetric flask Stock solution Mix 10 mL Solution I and 10 mL Solution II in a flask Let the stock solution stays 48 hours at 25...

Page 23: ...ill appear during measurement Alternatively press LOG CFM to skip the first point The second calibration point 15 0 NTU is then displayed on the primary LCD CAL P 2 on the secondary LCD and READ tag w...

Page 24: ...on the instrument Close the lid and press READ u The display will show blinking dashes and the icons for cuvette detectors and lamp will appear during measurement At the end of the measurement the fou...

Page 25: ...age is displayed CALIBRATION DELETION HI 98703 is factory calibrated It is possible to restorefactorycalibrationbydeletinglastperformed calibration To delete last calibration follow the next steps Ent...

Page 26: ...nique hexadecimal code of the tag and store the data After data is stored the instrument returns to measurement mode Notes If the tag is not read within 20 seconds the logging procedure is canceled Am...

Page 27: ...d on the secondary LCD together with TAG if the identification of the sampling location was made When the end of the log is reached an error beep is heard RECORD VIEWING Each record contains more info...

Page 28: ...d if LOG CFM is pressed the last record is deleted To abort the delete function press READ u instead of LOG CFM After the record is deleted the instrument goes immediately to the first panel of the pr...

Page 29: ...First calibration point 0 00 NTU if skipped or the actual read value e g 0 01 NTU Second calibration point GOOD LABORATORY PRACTICE GLP The instrument asks for confirmation and if LOG CFM is pressed a...

Page 30: ...ete calibration panel To delete calibration Press SETUP DEL while in the delete calibrationpaneloftheGLP Theusercalibration will be deleted and the factory calibration will be restored The instrument...

Page 31: ...s to set ON or OFF the EPA compliance mode Press LOG CFM to save the setting The new selected option of the parameter will be displayed on the LCD Alternatively press CAL to exit without saving the ne...

Page 32: ...ss LOG CFM to save the change The new selected option will be displayed on the LCD Alternatively press CAL to exit without saving the changes SET THE DATE The HI 98703 turbidimeter has a built in real...

Page 33: ...ew date The new date will be displayed on the LCD Alternatively press CAL to exit without saving the changes SET THE TIME To set the current time press CAL when set time panel is displayed The time fo...

Page 34: ...ID value and CFM tag will start blinking Press the s or t keys to set the new instrument ID By pressing and holding the s or t keys the changing speed wil increase Press LOG CFM to save the change The...

Page 35: ...ll automatically shut off after 25 seconds of non use to save the battery life TAG INSTALLATION The tag is housed in a rugged metal that can withstand harsh environments However it is better to protec...

Page 36: ...that the batteries need to be replaced When the batteries are completely discharged 0 bAtt message will be displayed for one second and the instrument will turn off In order to use the instrument agai...

Page 37: ...it until it locks Turn the instrument ON Warning Replace batteries only in a non hazardous area USING AN AC ADAPTER The HI 98703 can be powered from the AC adapter when used in laboratory See the Acc...

Page 38: ...o f O L t n e r r u c r o f d e s u d r a d n a t s e h T w o l o o t s i t n i o p n o i t a r b i l a c d n a d r a d n a t s e h t k c e h C e n o t c e r r o c e h t e s u I H t n e r r u c r o f...

Page 39: ...er from 115V to 12 Vdc USA plug HI 710006 Voltage adapter from 230V to 12 Vdc European plug HI 710012 Voltage adapter from 240V to 12 Vdc UK plug HI 710013 Voltage adapter from 230V to 12 Vdc South Af...

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