Related Manuals for Hanna Instruments 96708
Summary of Contents for Hanna Instruments 96708
- Page 1 Instruction Manual HI 96708 Nitrite High Range ISM w w w . h a n n a i n s t . c o m www.ponpe.com sale@ponpe.com...
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Page 2: Table Of Contents
BATTERY MANAGEMENT ....................21 BATTERY REPLACEMENT ....................22 ACCESSORIES ........................22 WARRANTY ........................23 All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Hanna Instruments Inc., Woonsocket, Rhode Island, 02895 , USA. www.ponpe.com sale@ponpe.com... -
Page 3: Preliminary Examination
Please examine this product carefully. Make sure that the instrument is not damaged. If any damage occurred during shipment, please notify your Dealer. Each HI 96708 Ion Selective Meter is supplied complete with: • Two Sample Cuvettes and Caps • CAL CHECK standard cuvettes •... -
Page 4: General Description
GENERAL DESCRIPTION The HI 96708 is an auto diagnostic portable microprocessor meter that benefits from Hanna’s years of experience as a manufacturer of analytical instruments. It has the advanced optical system based on a special tungsten lamp and a narrow band interference filter that allows most accurate and repeatable readings. -
Page 5: Specifications
SPECIFICATIONS Range 0 to 150 mg/L Resolution 1 mg/L ±4 mg/L ±4% of reading @ 25°C Accuracy Typical EMC Deviation ±1 mg/L Tungsten lamp Light Source Light Detector Silicon Photocell with narrow band interference filter @ 575nm Method Adaptation of the Ferrous Sulfate method. The reaction between nitrite and the reagent causes a greenish-brown tint in the sample. -
Page 6: Principle Of Operation
PRINCIPLE OF OPERATION Absorption of Light is a typical phenomenon of interaction between electromagnetic radiation and matter. When a light beam crosses a substance, some of the radiation may be absorbed by atoms, molecules or crystal lattices. If pure absorption occurs, the fraction of light absorbed depends both on the optical path length through the matter and on the physical-chemical characteristics of the substance according to the Lambert-Beer Law: = ε... -
Page 7: Functional Description
A microprocessor controlled special tungsten lamp emits radiation which is first optically conditioned and beamed to the sample contained in the cuvette. The optical path is fixed by the diameter of the cuvette. Then the light is spectrally filtered to a narrow spectral bandwidth, to obtain a light beam of intensity I or I. - Page 8 KEYPAD DESCRIPTION • ON/OFF: to turn the meter on and off. • ZERO/CFM: to zero the meter prior to measurement, to confirm edited values or to confirm factory calibration restore. • READ/ /TIMER: this is a multi-functional key. In measurement mode , press to make a measurement, or press and hold for three seconds to start a pre-programmed countdown prior to measurement.
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Page 9: Errors And Warnings
ERRORS AND WARNINGS The instrument shows clear messages when erroneous condition appears. Messages are also displayed when the obtained values are outside expected range. The beeper is playing a beep on errors. a) on zero reading Light High: There is too much light to perform a measurement. Please check the preparation of the zero cuvette. - Page 10 Under range: A blinking “0” indicates that the sample absorbs less light than the zero reference. Check the procedure and make sure you use the same cuvette for reference (zero) and measurement. Over Range: A flashing value of the maximum concentration indicates an over range condition.
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Page 11: General Tips For An Accurate Measurement
Battery low: The battery must be replaced soon. Dead battery: This indicates that the battery is dead and must be replaced. Once this indication is displayed, the meter will lock up. Change the battery and restart the meter. GENERAL TIPS FOR AN ACCURATE MEASUREMENT The instructions listed below should be carefully followed during testing to ensure best accuracy. -
Page 12: Startup
• Whenever the cuvette is placed into the measurement cell, it must be dry outside, and completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI 731318 or a lint-free cloth prior to insertion. • Shaking the cuvette can generate bubbles in the sample, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette. - Page 13 • When the beeper sounds briefly and the LCD displays dashes, the meter is ready. The blinking “ZERO” indicates that the instrument needs to be zeroed first. • Fill the cuvette with 10 mL of unreacted sample, up to the mark, and replace the cap.
- Page 14 -N concentration, divide the reading by a factor of 3.29. • To convert the NO ion to sodium nitrite NaNO concentration, multiply the reading by a factor of 1.5. INTERFERENCE HI 96708 will not recognize any glycol based samples. www.ponpe.com sale@ponpe.com...
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Page 15: Validation Procedure
LCD displays dashes, the meter is ready. • Place the CAL CHECK Standard HI 96708-11 Cuvette A into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove. • Press ZERO/CFM and the lamp, cuvette... - Page 16 • Remove the cuvette. • Place the CAL CHECK Standard HI 96708-11 Cuvette B into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove. • Press CAL CHECK and the lamp, cuvette and detector icons together with “CAL...
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Page 17: Calibration Procedure
“ZERO” asks for instrument zeroing. • Place the CAL CHECK Standard HI 96708-11 Cuvette A into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove. • Press ZERO/CFM and the lamp, cuvette... - Page 18 • Remove the cuvette. • Place the CAL CHECK Standard HI 96708-11 Cuvette B into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove. • Press READ/ /TIMER and the lamp,...
- Page 19 DATE INPUT • Press GLP/ to edit the desired year (2000-2099). If the key is kept pressed, the year number is automatically increased. • When the correct year has been set, press ZERO/CFM or READ/ /TIMER to confirm. Now the display will show the month blinking.
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Page 20: Glp
• The instrument will return automatically to measurement mode by displaying dashes on the LCD. In the GLP mode, the last user calibration date can be consulted and the factory calibration can be restored. LAST CALIBRATION DATE To display the calibration date: •... -
Page 21: Battery Management
• Press READ/ /TIMER to enter in the factory calibration restore screen. The instrument asks for confirmation of user calibration delete. • Press ZERO/CFM to restore the factory calibration or press GLP/ again to abort factory calibration restore. • The instrument briefly notifies “done” when restores factory calibration and returns to measurement mode . -
Page 22: Battery Replacement
HI 93708-03 Reagents for 300 tests OTHER ACCESORIES OTHER ACCESORIES OTHER ACCESORIES OTHER ACCESORIES OTHER ACCESORIES HI 96708-11 CAL CHECK Standard Cuvettes (1 set) 9V battery (10 pcs.) HI 721310 HI 731318 Cloth for wiping cuvettes (4 pcs.) Glass cuvettes (4 pcs.) -
Page 23: Warranty
WARRANTY HI 96708 is warranted for two years against defects in workmanship and materials when used for its intended purpose and maintained according to the instructions. This warranty is limited to repair or replacement free of charge. Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered. - Page 24 Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA Technical Support for Customers Tel. (800) 426 6287 Fax (401) 765 7575 E-mail tech@hannainst.com www.hannainst.com Local Sales and Customer Service Office Printed in EUROPE MAN96708 12/10 (ROMANIA) www.ponpe.com...
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