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Hanna Instruments HI96733C Instruction Manual
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Hanna Instruments HI96733C Instruction Manual

Ammonia high range ism
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HI96733C
Ammonia High Range ISM

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Summary of Contents for Hanna Instruments HI96733C

  • Page 1 HI96733C Ammonia High Range ISM...
  • Page 2 If you need additional technical information, do not hesitate to e‑mail us at tech@hannainst.com or view our worldwide contact list at www.hannainst.com. 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.
  • Page 3 PRELIMINARY EXAMINATION ..................... GENERAL DESCRIPTION ..................... ABBREVIATIONS ....................... SPECIFICATIONS ....................... PRECISION AND ACCURACY ....................PRINCIPLE OF OPERATION ....................FUNCTIONAL DESCRIPTION ....................ERRORS AND WARNINGS ....................GENERAL TIPS FOR AN ACCURATE MEASUREMENT .............. STARTUP .......................... MEASUREMENT PROCEDURE ..................... VALIDATION PROCEDURE ....................CALIBRATION PROCEDURE ....................
  • Page 4 Please examine this product carefully. Make sure that the instrument is not damaged. If any damage occurred during shipment, please contact your local Hanna Instruments Office. Each HI96733 Ion Selective Meter is supplied complete with: • Sample Cuvettes and Caps (2 pcs.) •...
  • Page 5 HI96733 is an auto diagnostic portable microprocessor meter that benefits from Hanna Instruments’ years of experience as a manufacturer of analytical instruments. It has an advanced optical system based on a special tungsten lamp and a narrow band interference filter that allows most accurate and repeatable readings.

  • Page 6: Required Reagents

    Range 0.0 to 50.0 mg/L (as NH 0.1 mg/L for measurement Resolution 0.1 mg/L for calibration and validation Accuracy ±0.5 mg/L ±5% of reading @25 °C (77 °F) Light Source Tungsten lamp Light Detector Silicon Photocell with narrow band interference filter @420 nm Adaptation of the ASTM Manual of Water and Environmental Technology, Method D1426‑92, Nessler Method.
  • Page 7 Precision is how closely repeated measurements agree with each other. Precision is usually expressed as standard deviation (SD). Accuracy is defined as the nearness of a test result to the true value. Although good precision suggests good accuracy, precise results can be inaccurate. The figure explains these definitions.
  • Page 8 The optical system of Hanna Instruments’ HI96733 colorimeter is based on a tungsten lamp combined with a narrow‑band interference filter to guarantee both high performance and reliable results.

  • Page 9: Instrument Description

    INSTRUMENT DESCRIPTION 1) GLP/ key 2) CAL CHECK key 3) ZERO/CFM key 4) READ /TIMER key 5) ON/OFF key 6) Liquid Crystal Display (LCD) 7) Cuvette alignment indicator 8) Cuvette holder KEYPAD DESCRIPTION • ON/OFF: to turn the meter on and off. •...
  • Page 10 DISPLAY ELEMENTS DESCRIPTION The measuring scheme (lamp, cuvette, detector), appears during different phases of zero or reading measurement Error messages and warnings The battery icon shows the charging level of the battery The hourglass appears when an internal checking is in progress Status messages The chronometer appears when the reaction timer is running The month, day and date icons appear when a date is displayed...
  • Page 11 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 12 Under range: A blinking “0.0” 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.
  • Page 13 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.
  • Page 14 The instructions listed below should be carefully followed during testing to ensure best accuracy. • Color or suspended matter in large amounts may cause interference, therefore these should be removed by treatment with active carbon and by prior filtration. • For a correct filling of the cuvette: the liquid in the cuvette forms a concavity on the top;...
  • Page 15 • It is important that the sample does not contain any debris. This would corrupt the reading. • In order to avoid reagent leaking and to obtain more accurate measurements, it is recommended to close the cuvette first with the supplied HPDE plastic stopper and then with the black cap. •...
  • Page 16 Prepare the instrument for measurement as follows: • Unpack the instrument by removing the dust protection sleeve from the instrument cuvette holder. • Place the battery in the instrument as described in the “BATTERY REPLACEMENT” chapter. • Place the instrument on a flat table. •...
  • Page 17 • Using the plastik pipette, add 9 mL of HI93733B‑0 Ammonia Reagent B, up to the 10 mL mark. Place the cap and swirl the solution to mix. 10 mL sample • Place the cuvette into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove.
  • Page 18 • Remove the cuvette, open it and add 4 drops of HI93733A‑0 Nessler Reagent. Replace the cap and swirl the cuvette gently to mix. • Replace the cuvette into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove.
  • Page 19 • At the end of measurement, the instrument directly displays concentration in mg/L of ammonium ion (NH on the LCD. To convert the reading to mg/L of ammonia (NH ), multiply by the factor 0.944. To convert the reading to mg/L of ammonia nitrogen (NH ‑N), multiply by the factor 0.776.
  • Page 20 Use the validation procedure to ensure that the instrument is properly calibrated. Warning: Do not validate the instrument with any standard solutions other than the Hanna Instruments CAL Check Standards, otherwise erroneous results will be obtained. For accurate validation, please perform test at room temperature: 18 to 25 °C (64.5 to 77.0 °F)
  • Page 21 • After a few seconds, the display will show “-0.0-”. The meter is now zeroed and ready for validation. • Remove the cuvette. • Place the CAL Check Standard HI96733‑11 Cuvette B into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove. •...
  • Page 22 Note: It is possible to interrupt calibration procedure at any time by pressing CAL CHECK or ON/OFF keys. Warning: Do not calibrate the instrument with standard solutions other than the Hanna Instruments CAL Check Standards, otherwise erroneous results will be obtained. For accurate calibration, please perform test at room temperature: 18 to 25 °C (64.5 to 77.0 °F)
  • Page 23 • Press ZERO/CFM and the lamp, cuvette and detector icons will appear on the display, depending on the measurement phase. • After a few seconds the display will show “-0.0-”. The meter is now zeroed and ready for calibration. The blinking “READ” asks for reading calibration standard. •...

  • Page 24: Date Input

    • After measurement the instrument will show for three seconds the CAL Check Standard value. Note: If the display shows “STD HIGH”, the standard value was too high. If the display shows “STD LOW”, the standard value was too low. Verify that both CAL Check Standards HI96733-11 Cuvettes, A and B are free of fingerprints or dirt and that they are inserted correctly.
  • Page 25 • Press GLP/ to edit the desired month (01‑12). If the key is kept pressed, the month number is automatically increased. • When the correct month has been set, press ZERO/CFM or READ /TIMER to confirm. Now the display will show the day blinking. •...

  • Page 26: Last Calibration Date

    • The instrument will return automatically to the 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 27 • 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 28 To save battery, the instrument shuts down after 10 minutes of non‑use in measurement mode and after 1 hour of non‑use in calibration mode. If a valid measurement was displayed before auto shut off, the value is displayed when the instrument is switched on. The blinking “ZERO”...
  • Page 29 To replace the instrument’s battery, follow the steps: • Turn the instrument off by pressing ON/OFF. • Turn the instrument upside down and remove the battery cover by turning it counterclockwise. • Extract the battery from its location and replace it with a fresh one. •...
  • Page 30 Required Accessories HI93733-01 Reagents for 100 tests HI93733-03 Reagents for 300 tests Other Accessories HI96733-11 CAL Check Standard Cuvettes (1 set) HI742009P 9V battery (10 pcs.) HI731318 Cloth for wiping cuvettes (4 pcs.) HI731331 Glass cuvettes (4 pcs.) HI731335 Caps for cuvettes (4 pcs.) HI93703-50 Cuvette cleaning solution (230 mL) HI740318...

  • Page 31: Recommendations For Users

    If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization Number from the Customer Service Department and then send it with shipment costs prepaid.
  • Page 32 World Headquarters Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA www.hannainst.com Local Office Hanna Instruments USA 270 George Washington Highway Smithfield, RI 02917 Phone: 800.426.6287 Fax: 401.765.7575 e‑mail: tech@hannainst.com Printed in ROMANIA MAN96733...