Related Manuals for Hanna Instruments HI98713
Summary of Contents for Hanna Instruments HI98713
- Page 1 Instruction Manual HI98713 ISO Portable Turbidimeter w w w . h a n n a i n s t . c o m...
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Page 2: Table Of Contents
WARRANTY HI98713 is warranted for two years against defects in workmanship and materials when used for its intended purpose and maintained according to instructions. This warranty is limited to repair or replacement free of charge. -
Page 3: Preliminary Examination
PRELIMINARY EXAMINATION Please examine this product carefully. Make sure the instrument is not damaged. If any damage has occurred during the shipment, please contact your local Hanna Instruments Office. This HI98713 Portable Turbidimeter is supplied complete with: • Five Sample Cuvettes and Caps •... -
Page 4: General Description
The instrument is specially designed for water quality measurements, providing a reliable and accurate reading on low turbidity values. The HI98713 instrument measures the turbidity of a sample in the 0.00 to 1000 FNU (Formazin Nephelometric Units) range. An effective algorithm calculates and converts the detectors output in FNU. -
Page 5: Tag Identification System
TAG IDENTIFICATION SYSTEM Hanna Instruments is the first manufacturer of turbidity instruments that has decided to add the unique T.I.S. ‑ Tag Identification System to our Portable Turbidimeters, to meet the more restrictive needs of the users and fit all advantages of this system to the turbidity measurements and data management. -
Page 6: Principle Of Operation
The optical system of HI98713 turbidimeter is designed to have very low stray light, providing accurate results for low turbidity samples. However, special care must be taken when measuring low turbidities... -
Page 7: Measurement Units
To obtain more accurate readings a formazin based meter should be used as a turbidity reading instrument. The HI98713 turbidimeter reports the measurements only in FNU (Formazin Nephelometric Units). The conversion table between these measurement units is shown bellow:... -
Page 8: Functional Description
FUNCTIONAL DESCRIPTION INSTRUMENT DESCRIPTION 1) Cuvette Lid. Close the cuvette lid prior to start a measurement. 2) Cuvette Holder. Insert the cuvette into the holder with the cuvette mark matching the case mark. 3) Liquid Crystal Display (LCD). The LCD has backlight for better visibility in dark environments. 4) Keypad. - Page 9 8) ON/OFF, press to turn the instrument ON/OFF. If no key is pressed for more than 15 minutes, the instrument automatically shuts off. 9) GLP , press to enter/exit GLP feature. In SETUP it is used to increase the set values. In Log Recall it is used to select a newer record (scroll up).
- Page 10 DISPLAY DESCRIPTION 1) Battery icon. When it is ON, it shows that the instrument works on battery. When blinking, the batteries are almost empty and need to be replaced. 2) Wait icon. It is displayed when the instrument performs an internal checkup. 3) Measurement icon.
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Page 11: Specifications
SPECIFICATIONS Range 0.00 to 9.99 FNU 10.0 to 99.9 FNU 100 to 1000 FNU Range Selection Automatically Resolution 0.01 FNU from 0.00 to 9.99 FNU 0.1 FNU from 10.0 to 99.9 FNU 1 FNU from 100 to 1000 FNU Accuracy ±2% of reading plus 0.1 FNU Repeatibility ±1% of reading or 0.01 FNU, whichever is greater... -
Page 12: General Tips For An Accurate Measurement
GENERAL TIPS FOR AN ACCURATE MEASUREMENT HI98713 is a highly accurate turbidimeter. To meet the instrument performance and fully benefit of its properties it is very important that the analyst perform accurate, precise and repeatable readings using proper measurement techniques. Special care must be taken during sample preparation and handling. - Page 13 CUVETTE OILING To hide minor imperfections and scratches, the cuvettes should be oiled outside with the supplied silicone oil. This is very important, especially for low turbidity samples (< 1 FNU), otherwise scratches can contribute and alter turbidity readings. The silicone oil has the same refractive index as the glass and will not alter the turbidity readings. It is important to apply only a thin layer of silicone oil.
- Page 14 In order to index a cuvette follow the next steps: • Fill the cuvette with high quality water (<0.1 FNU) up to the line. • Clean and oil the cuvette as described before. • Turn the instrument ON. • Insert the cuvette into the instrument and press READ .
- Page 15 MATCHING MULTIPLE CUVETTES Precise measurements require the use of a single cuvette. If it is not possible, the cuvet selection and matching must be performed before taking measurements. In order to match multiple cuvettes follow the next steps: • Fill some cuvettes with high quality water (<0.1 FNU) up to the line.
- Page 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 within 0.01 FNU of the value obtained for the first cuvette. • Alternatively, keep READ pressed and, after the first value is displayed, open the lid and start rotating the cuvette until the displayed value matches the first cuvette.
- Page 17 APPLICATION OF VACUUM Vacuum works by decreasing the atmospheric pressure. In this way the bubbles from the solution came out to the surface. Application of vacuum is a very simple procedure and can be applied with any vacuum source at hand. The simplest equipment at hand is a syringe and a rubber stopper for vacuum degassing.
- Page 18 HEATING THE SAMPLE Use of heat to remove air bubbles, although very effective in some cases, should be handled with care because it can alter the turbidity of the sample. When heating a sample, the volatile components from the sample can vaporize, the suspended components can dissolve or the sample characteristics can change.
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Page 19: Measurement Procedure
MEASUREMENT PROCEDURE When taking any turbidity measurements several basic rules should be followed: • Use always cuvettes without scratches or cracks because they can cause inaccurate readings. • Cap always the cuvettes to avoid spillage of the sample into the instrument. •... - Page 20 NORMAL MEASUREMENT This type of measurement can be used for regular measurements, when the sample is stable and normal accuracy is required. In normal measurement mode, the led is ON for a minimum period of time (about 7 seconds), saving the battery life. Normal measurement takes about 10 seconds. If normal measurement is selected, the “AVG”...
- Page 21 When the measurement is ended, the final averaged result is displayed directly in FNU. RANGE AND UNITS HI98713 automatically selects the correct range to display the results with the highest accuracy. If the measured value is higher than 1000 FNU (over range), the display will show the maximum value blinking.
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Page 22: Calibration Procedure
HI98713 turbidimeter is supplied with 4 AMCO standards: <0.1 FNU, 15 FNU, 100 FNU and 750 FNU. The Hanna Instruments standards are specially designed for this instrument. The turbidity standards have a shelf life and should not be used after the expiration date. - Page 23 TWO-POINT CALIBRATION • Turn the instrument on by pressing ON/OFF. When the LCD displays dashes, the instrument is ready. • Enter calibration mode by pressing CAL. The display will show “CAL P.1” and no sug‑ gested value. This first point is used to check the optical system.
- Page 24 • At the end of the measurement, the third calibra‑ tion point (100 FNU) is displayed on the primary LCD, “CAL P.3” on the secondary LCD, and “READ” tag will blink. • At this moment it is possible to exit calibration by pressing CAL.
- Page 25 “CAL Err” message is displayed. CALIBRATION DELETION HI98713 is factory calibrated. It is possible to delete last performed calibration. To delete last calibration, follow the next steps: • Enter the GLP feature by pressing GLP .
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Page 26: Logging
LOGGING HI98713 has a log space for up to 200 records. With each measurement, the date, time and tag ID is stored. In this way, each record is fully characterized and can be easily analyzed when downloading data on the PC application (HI92000). - Page 27 VIEW LOGGED DATA The stored records can be viewed at any moment by pressing RCL. To return to normal measurement mode, press RCL again . LOG SEARCHING The log records are stored in chronological order. The first displayed record is the last stored one. •...
- Page 28 • Measurement date in YYYY.MM.DD format. • Measurement time in hh:mm format. • Delete the last record panel (only for last record). • Delete all records. DELETE LAST RECORD To log other values, the last record or all records have to be deleted. •...
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Page 29: Good Laboratory Practice (Glp)
• The instrument asks for confirmation and if LOG/CFM is pressed, all records are deleted. To abort the delete function, press READ instead of LOG/CFM. • After all records are deleted, dashes are displayed for one second and the instrument returns to idle mode. - Page 30 • Third calibration point (if available). • Fourth calibration point (if available). • Delete calibration panel. To delete calibration: • Press SETUP/DEL while in the delete calibration panel of the GLP. The user calibration will be deleted and the fac‑ tory calibration will be restored.
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Page 31: Setup
• To select the parameter to be edit, press UP or DOWN keys until the desired panel is displayed. SET BEEPER The HI98713 has a built‑in beeper that signals the tag read, the key press and the error conditions. The beeper can be selected to be ON or OFF. - Page 32 Alternatively, press CAL to exit without saving the changes. SET THE DATE The HI98713 turbidimeter has a built‑in real time clock (RTC). The RTC time is used to generate a unique time stamp for each recorded value and to automatically store the last calibration date. The current time can be displayed on the LCD when the instrument is in idle mode.
- Page 33 SET THE TIME • To set the current time, press CAL when set time panel is displayed. The time format is hh:mm. The hour value and “CFM” tag will start blin‑ king. • Press the UP or DOWN keys to set the hour value. •...
- Page 34 Alternatively, press CAL to exit without saving the changes. SET BAUD RATE The HI98713 has a RS232 and a USB link. When the USB connection is used, the RS232 connection becomes inactive. To successfully communicate with the PC, the same baud rate must be selected on the instrument and on the PC application.
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Page 35: Lcd Backlight
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. -
Page 36: Led Replacement
Warning: After LED replacement the meter needs to be recalibrated. BATTERIES MANAGEMENT For field measurements, HI98713 is powered by 4 AA batteries. The battery life is enough for 3500 normal measurements. When the instrument is started, the remaining battery life is estimated and reported in percents. - Page 37 Warning: Replace batteries only in a non‑hazardous area. USING AN AC ADAPTER The HI98713 can be powered from the AC adapter when used in laboratory. See the Accessories section to select the correct AC adapter. To power the instrument, simply connect the AC adapter to the instrument (see Connectors Description, page 9).
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Page 38: Pc Interface
In both cases, the PC must run the HI92000 application for successful data transfer. To allow our users access to the latest version of Hanna Instruments PC compatible software, we made the products available for download at http://software.hannainst.com. Select the product code and click Download Now. -
Page 39: Accessories
Any variation introduced by the user to the supplied equipment may degrade the meter’s performance. For yours and the meter’s safety do not use or store the meter in hazardous environments. Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice. - Page 40 World Headquarters Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA www.hannainst.com MAN98713 06/19 Printed in Romania...