Hanna-instruments HI 98703 User Manual

1HI 98703Portable TurbidimeterInstruction Manualwww.hannainst.com

10DISPLAY DESCRIPTION1) Battery icon. When it is ON, it shows that the instrument works on battery. When blinking,the batteries are almost empty and n

11Range 0.00 to 9.99 NTU10.0 to 99.9 NTU100 to 1000 NTURange Selection AutomaticallyResolution 0.01 NTU from 0.00 to 9.99 NTU0.1 NTU from 10.0 to 99.9

12GENERAL TIPS FOR AN ACCURATE MEASUREMENTCUVETTEThe cuvette is part of the optical system in all measurements. The light reaches the sample bypassing

13CUVETTE OILINGTo hide minor imperfections and scratches, the cuvettes should be oiled outside with the suppliedsilicone oil. This is very important,

14In order to index a cuvette follow the next steps:• Fill the cuvette with high quality water (<0.1NTU) up to the line.• Clean and oil the cuvette

In order to match multiple cuvettes follow the nextsteps:• Fill some cuvettes with high quality water(<0.1 NTU) up to the line.• Clean and oil the

16• Open the instrument lid, slightly rotate the cuvette and take a new reading.• Repeat the last step for the second cuvette until the reading is wit

17APPLICATION OF VACUUMVacuum works by decreasing the atmospheric pressure. In this way the bubbles from the solutioncame out to the surface.Applicati

18HEATING THE SAMPLEUse of heat to remove air bubbles, although very effective in some cases, should be handled with carebecause it can alter the turb

19MEASUREMENT PROCEDURETo take turbidity measurements, follow the next steps:• Turn the instrument ON by pressing ON/OFF.When dashes are displayed on

2TABLE OF CONTENTSWARRANTYWARRANTY ...

20• Press READ u to start the measurement.The display will show blinking dashes and theicons for cuvette, detectors and lamp will appearduring measure

21• Press READ u to start the average readingmode. The display will show blinking dashesand the icons for cuvette, detectors and lampwill appear durin

22CALIBRATION PROCEDUREHI 98703 has a powerful calibration function that compensates for lamp aging or changing. Thecalibration can be done using the

23TWO-POINT CALIBRATION• Turn the instrument on by pressing ON/OFF.When the LCD displays dashes, the instrumentis ready.• Enter calibration mode by pr

24• At the end of the measurement, the thirdcalibration point (100 NTU) is displayed onthe primary LCD, “CAL P.3” on the secondaryLCD, and “READ” tag

25OUT CAL RANGE FUNCTIONThe instrument has an Out Cal Range function to prevent taking measurements in a range where thecalibration does not assure th

26LOGGINGLOGGINGThe log function is active after a valid measurementis obtained (no errors).• To log a value, press LOG/CFM when themeasurement result

27VIEW LOGGED DATAThe stored records can be viewed at any momentby pressing RCL. To return to normal measurementmode, press RCL again.LOG SEARCHINGThe

28• Measurement date in YYYY.MM.DD format.• Measurement time in hh:mm format.• Delete the last record panel (only for lastrecord).• Delete all records

29Press GLP s to enter or exit GLP data consulting.Several functions are available when in GLP menu.Press READ u to scroll the following GLP data:• Th

3PRELIMINARY EXAMINATIONPlease examine this product carefully. Make sure that the instrument is not damaged. If anydamage occurred during shipment, pl

30• Third calibration point (if available).• Fourth calibration point (if available).• Delete calibration panel.To delete calibration:• Press SETUP/DE

31SETUP• To enter/exit SETUP, press SETUP/DEL.• To select the parameter to be edit, press s ort keys until the desired panel is displayed.SET EPA COMP

32• Press the s or t keys to set the beeper ON/OFF.• Press LOG/CFM to save the change. The newselected option will be displayed on the LCD.Alternative

33• Press LOG/CFM or READ u to start editingthe month value. The month value will startblinking.• Press the s or t keys to set the monthvalue.• Press

34• Press LOG/CFM to save the new time. Thenew set time will be displayed. Alternatively,press CAL to exit without saving the changes.SET INSTRUMENT I

35• Press the s or t keys to select the new baudrate value.• Press LOG/CFM to save the change. The newselected baud rate will be displayed.Alternative

36For field measurements, HI 98703 is powered by 4 AA batteries.The battery life is enough for 1500 normal measurements.When the instrument is started

37BATTERIES REPLACEMENTTo replace the batteries follow the next steps:• Press ON/OFF to turn OFF the instrument.• Open the batteries cover by pressing

38ERROR CODESHI 98703 has a powerful diagnostic system. The common errors are detected and reported foreasy diagnostic and maintenance.RORRE NOITPIRCS

39RECOMMENDATIONS FOR USERSBefore using this product, make sure that it is entirely suitable for your specific application andfor the environment in w

4HI 98703 is a high accuracy EPA compliant portable turbidimeter that benefits from Hanna’s years ofexperience as manufacturer of analytical instrumen

40Printed in ROMANIAMAN98703 06/14Hanna Instruments Inc.Highland Industrial Park584 Park East DriveWoonsocket, RI 02895 USATechnical Support for Cust

5TAG IDENTIFICATION SYSTEMABBREVIATIONSiButton®®®®® is registered Trademark of “MAXIM/DALLAS semiconductor Corp.”Hanna is the first manufacturer of tu

6Turbidity of the water is an optical property that causes light to be scattered and absorbed, rather thantransmitted. The scattering of the light tha

7MEASUREMENT UNITSMany methods were used to measure turbidity over the years. The Jackson Candle Turbidimeter wasused to measure turbidity as Jackson

8FUNCTIONAL DESCRIPTIONINSTRUMENT DESCRIPTION1) Cuvette Lid. Close the cuvette lid prior to start a measurement.2) Cuvette Holder. Insert the cuvette

98) ON/OFF, press to turn the instrument ON/OFF. If no key is pressed for more than15 minutes, the instrument automatically shuts off.9) GLP s, press