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HI88713

ISO Turbidity Meter

Instruction Manual

Содержание HI88713-01

Страница 1: ...1 www hannainst com HI88713 ISO Turbidity Meter Instruction Manual...

Страница 2: ...e of this manual for our worldwide sales and technical service contacts This instrument is in compliance with directives PRELIMINARY EXAMINATION 3 GENERAL DESCRIPTION 3 ABBREVIATIONS 4 PRINCIPLE OF OP...

Страница 3: ...standard Theinstrumentisbasedonastate of the artopticalsystemwhichguaranteesaccurateresults assures longtermstabilityandminimizesstraylightandcolorinterferences Italsocompensatesforvariations in inten...

Страница 4: ...the sample is scattered in all directions The intensity and pattern of the scattered light is affected by many variables including the wavelenght of the incident light particle size and shape refract...

Страница 5: ...ed light detectors The non ratio methods are more sensitive to the LED intensity fluctuations The lower detection limit of a turbidimeter is determined by the stray light Stray light is the light that...

Страница 6: ...00 FNU 10 4000 FAU 0 980 EBC 0 4000 NTU Turbidity 2 3 1 INSTRUMENT DESCRIPTION 1 Liquid Crystal Display LCD The LCD has backlight for better visibility in dark environments 2 Keypad Splash proof resis...

Страница 7: ...s to perform the function displayed above it The function are screen releated Press to exit the current screen Press to access measurement modes Press to scroll up in a menu and help or to increment a...

Страница 8: ...100 to 245 EBC Resolution 0 01 0 1 1 NTU 0 01 0 1 1 EBC Accuracy 2 of reading plus straylight Range selection Automatic Repeatibility 1 of reading or straylight whichever is greater Stray Light 0 1 N...

Страница 9: ...imize the instrument performance and to fully benefit from its features Is very important for the analyst to use proper measurement techniques for accurate precise and repeatable readings The instruct...

Страница 10: ...ith a lint free cloth Wipe off the excess oil till you obtain a thin uniform layer If the procedure is correctly followed the cuvette should appear nearly dry with no visible oil Note The supplied clo...

Страница 11: ...ge mode is on In order to index a cuvette follow the next steps Fillthecuvettewithhighqualitywater 0 1FNU up to the 10 mL mark Clean and oil the cuvette as described in the previous section Turn the i...

Страница 12: ...s as described before Turn the instrument ON Insert the first cuvette into the instrument and press Read functional key Record the reading Open the instrument lid slightly rotate the cuvette and take...

Страница 13: ...mple For consistent results follow the next tips when 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...

Страница 14: ...used for degassing is Triton X 100 Warning Changing the surface tension will cause a rapid settling of particles that cause turbidity To avoid this problem analyze the sample as soon as possible Do n...

Страница 15: ...th sample and immerse it 1 2 to 2 3 immersed in an ultrasonic bath Follow the degassing procedure described above Only after the degassing procedure is finished the cuvette can be capped HEATING THE S...

Страница 16: ...reen press the SETUP key to enter the setup and then press DOWN key until the Tutorial line is highlighted Press the Disable key then press ESC to return to the main screen RANGE SELECTION The HI88713...

Страница 17: ...he meter will display the previous screen MEASUREMENT PROCEDURE When taking turbidity measurements several basic rules should be followed Always use cuvettes without scratches or cracks because they c...

Страница 18: ...s The dashes and light icon will appear during different measurement phases The result is displayed in the selected units 10 ml 1 0 m l 10 ml Replace the cap Wipe the cuvette thoroughly with a lint fr...

Страница 19: ...he last value 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...

Страница 20: ...t is a carcinogen reagent Avoid inhalation ingestion or skin contact Formazin solution can also contain some hydrazine traces Solution II Dissolve 10 000 grams of hexamethylenetetramine CH2 6N4 in dis...

Страница 21: ...t you are in the correct mode To enter calibration press CAL key while in main screen The first screen of GLP information is displayed Press Cal functional key to start calibration It is possible to i...

Страница 22: ...was previously selected the measurement in calibration mode will be done using the average At the end of the measurement the second proposed calibration point is displayed SECOND POINT CALIBRATION Rem...

Страница 23: ...FNU modes 750 NTU formazin prepared standard for FAU mode Note If necessary press UP or DOWN key to edit each calibration point value to match the exact value of the standard as measured with a refer...

Страница 24: ...the light icon during measurement The Store message is displayed for FAU FNU and NTU non ratio modes and the calibration is saved The instrument returns to the main screen The fifth proposed calibrat...

Страница 25: ...t standard is used or prepare a fresh standard if formazine is used and repeat the reading of the standard If the calculated calibration coefficients are outside a certain range a calibration error me...

Страница 26: ...nd the meter uses only the factory calibration ParameterasNTURatioTurbidity NTUNonRatio Turbidity FAU Turbidity or FNU Turbidity The value of each calibration point up to 5 points for NTU ratio mode 4...

Страница 27: ...y 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 one The information regarding one record is...

Страница 28: ...y alternatively the UP or DOWN key to increase or decrease the display backlight Press Accept functional key to confirm or ESC to return to the setup menu without saving the new value Contrast Values...

Страница 29: ...selectthenewvalue Date format Press Modify functionalkeytochangetheDateFormat Use the UP or DOWN key to select the desired format Press Accept functional key to confirm the value or ESC to return to t...

Страница 30: ...he beeper Press the Enable functional key to enable or disable this option When enabled a short beep is heard every time a key is pressed A long beep alert sounds when the pressed key is not active or...

Страница 31: ...ENDATIONS FOR USERS WARRANTY HI88713 is warranted for two years against defects in workmanship and materials when used for its intended purpose and maintained according to the instructions This warran...

Страница 32: ...ark 584 Park East Drive Woonsocket RI 02895 USA www hannainst com Local Office Hanna Instruments Inc Highland Industrial Park 584 Park East Drive Woonsocket RI 02895 USA Phone 800 426 6287 Fax 401 765...

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