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HI 88703

Turbidity Meter

Instruction Manual

Содержание HI 88703

Страница 1: ...1 www hannainst com HI 88703 Turbidity Meter Instruction Manual...

Страница 2: ...r our worldwide sales and technical service contacts This instrument is in compliance with directives PRELIMINARY EXAMINATION 3 GENERAL DESCRIPTION 3 ABBREVIATIONS 4 PRINCIPLE OF OPERATION 4 FUNCTIONA...

Страница 3: ...rument is based on a state of the art optical system which guarantees accurate results assures long term stability and minimizes stray light and color interferences It also compensates for variations...

Страница 4: ...directions The intensity and pattern of the scattered light is affected by many variables like wavelenght of the incident light particle size and shape refractive index and color The optical system in...

Страница 5: ...imitofaturbidimeterisdeterminedbythesocalled straylight Straylightisthelight detected by the sensors that is not caused by light scattering from suspended particles The optical system of HI 88703 inst...

Страница 6: ...N INSTRUMENT DESCRIPTION 1 Liquid Crystal Display LCD The LCD has backlight for better visibility in dark environments 2 Keypad Splash proof resistant 3 Cuvet Lid Close the cuvet lid prior to start a...

Страница 7: ...ing functions The function of each of the three functional keys depends on the name displayed on the LCD above them ESC Press to return to the main screen RANGE When in the main screen press to access...

Страница 8: ...or 0 02 NTU 0 15 Nephelos 0 01 EBC whichever is greater Stray Light 0 02 NTU 0 15 Nephelos 0 01 EBC Light Detector Silicon Photocell Method Nephelometric method 90 or Ratio Nephelometric Method 90 180...

Страница 9: ...erformance and fully benefit of its features it is very important for the analyst to use proper measurement techniques for accurate precise and repeatable readings Special care must be taken during sa...

Страница 10: ...wipe the cuvet thoroughly with a lint free cloth Wipe off the excess oil till you obtain a thin uniform layer If the procedure is correctly followed the cuvet should appear nearly dry with no visible...

Страница 11: ...cuvet follow the next steps Fillthecuvetwithhighqualitywater 0 1NTU up to the 10 mL mark Clean and oil the cuvet as described before Turn the instrument ON Insert the cuvet into the instrument and pre...

Страница 12: ...ty water 0 1NTU up to the 10 mL mark Clean and oil the cuvets as described before Turn the instrument ON Insert the first cuvet into the instrument and press Read functional key Record the reading Mar...

Страница 13: ...en sampling Gently mix the water before taking the sample If the sample is taken from a pipe discard the first few liters If measuring a non uniform source collect samples from different places and mi...

Страница 14: ...that changing the surface tension will cause a rapid settling of particles that cause turbidity To avoid this problem analyze as soon as possible the sample Do not shake vigorously the sample because...

Страница 15: ...lp information are not available an ultrasonic bath Follow the degassing procedure described above Only after the degassing procedure is finished the cuvet can be capped HEATING THE SAMPLE Use of heat...

Страница 16: ...to the main screen TUTORIAL MODE TUTORIAL MODE TUTORIAL MODE TUTORIAL MODE TUTORIAL MODE TheHI 88703hasauniqueTutorialModethatprovidesadditionalinformationtohelptheunexperienced user during the measu...

Страница 17: ...ASUREMENT PROCEDURE FOR RATIO MEASUREMENT PROCEDURE FOR RATIO MEASUREMENT PROCEDURE FOR RATIO MEASUREMENT PROCEDURE FOR RATIO NON NON NON NON NON RATIO RATIO RATIO RATIO RATIO TURBIDITY RANGE TURBIDIT...

Страница 18: ...he left side andblinkingdashes Thedashesandlampicon will appear during different measurement phases The result is displayed in the selected units Wipe the cuvet thoroughly with a lint free cloth to re...

Страница 19: ...alue remains on the display after the Read functional key is released AVERAGED MEASUREMENT This measurement mode is useful when samples that cause unstable readings are analyzed By averaging several r...

Страница 20: ...designed for this instrument Turbidity standards have a shelf life and should not be used after the expiration date Alternatively formazin standards can be used It is recommended that the turbidity v...

Страница 21: ...purity water you used for the preparation of the stock solution The diluted formazin solutions are not stable They should be used immediately after preparation and discard immediately after use CALIB...

Страница 22: ...second formazynepreparedstandard intotheholder with the cuvet mark aligned with the sign on the instrument top Note If necessary press UP or DOWN key to edit each calibration point value to match the...

Страница 23: ...will briefly show Store and the three point calibration is saved The instrument returns in the main screen FOUR POINT CALIBRATION Ratio Turbidity only To perform a four point calibration continue the...

Страница 24: ...e with the following steps Remove the fourth standard cuvet Place the 2000 NTU standard cuvet or the fourthpreparedformazinstandard intotheholder with the cuvet mark aligned to the sign on the instrum...

Страница 25: ...nt up to 5 points for ratio turbidimeter and 2 points for non ratio turbidimeter If the first calibration point was skipped the 0 00 value is displayed GOOD LABORATORY PRACTICE GLP GOOD LABORATORY PRA...

Страница 26: ...e LOG RECALL The log can be consulted at any time by simply pressing RCL key To exit log consulting press RCL key again The log content is displayed one record at a time starting with the most recent...

Страница 27: ...alternatively the Right or Left functional keys to increase or decrease the display constrast Press Accept functional keyto confirm or ESCto return to the setup menu without saving the new value Contr...

Страница 28: ...ress the AM PM functional key to select the new value Date format Press Modify functional key to change the Date Format UsetheUPorDOWNkeystoselectthedesiredformat Press Accept functional key to confir...

Страница 29: ...99 This option is used to set the instrument s ID identification number The instrument ID is used while exchanging data with a PC Press Modify functional key to access the instrument ID screen Press t...

Страница 30: ...ctor Unlock the lamp and extract it by pulling it out from the lamp holder handler Place the new lamp in the right position and push it until is securely locked Insert the lamp leads into the connecto...

Страница 31: ...do not use or store the instrument in hazardous environments RECOMMENDATIONS FOR USERS RECOMMENDATIONS FOR USERS RECOMMENDATIONS FOR USERS RECOMMENDATIONS FOR USERS RECOMMENDATIONS FOR USERS WARRANTY...

Страница 32: ...ax 210 884 0210 Indonesia Tel 210 4584 2941 Fax 210 4584 2942 Japan Tel 03 3258 9565 Fax 03 3258 9567 Korea Tel 02 2278 5147 Fax 02 2264 1729 Malaysia Tel 603 5638 9940 Fax 603 5638 9829 Singapore Tel...

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