Hanna Instruments HI96713C Instruction Manual
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Hanna Instruments HI96713C Instruction Manual

Phosphate low range ism
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HI96713C
Phosphate Low Range ISM

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Summary of Contents for Hanna Instruments HI96713C

  • Page 1 HI96713C Phosphate Low 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 HI96713 Ion Selective Meter is supplied complete with: • Sample Cuvettes and Caps (2 pcs.) •...
  • Page 5 HI96713 is an auto diagnostic portable microprocessor meter that benefits from Hanna Instruments’ 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 6: Required Reagents

    Range 0.00 to 2.50 mg/L Resolution 0.01 mg/L Accuracy ±0.04 mg/L ± 4% of reading @25 °C (77 °F) Light Source Tungsten lamp Light Detector Silicon Photocell with narrow band interference filter @610 nm Method Adaptation of the ascorbic acid method. The reaction between phosphate and the reagent causes a blue tint in the sample.
  • Page 7 The optical system of Hanna Instruments’ HI96 colorimeter is based on special tungsten lamp and narrow‑band interference filters to guarantee both high performance and reliable results.

  • Page 8: Instrument 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 9: Keypad Description

    KEYPAD DESCRIPTION • ON/OFF: to turn the meter on and off. • ZERO/CFM: this is a bi‑functional key. Just press to zero the meter prior to measurement, or confirm edited values. In calibration mode press to confirm factory calibration restore. •...
  • Page 10 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 11 Over Range: A flashing value of the maximum concentration indicates an over range condition. The concentration of the sample is beyond the programmed range: dilute the sample and re‑run the test. c) during calibration procedure Standard Low: The standard reading is less than expected. Standard High: The standard reading is higher than expected.
  • Page 12 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 13 • After the reading it is important to discard immediately the sample, otherwise the glass might become permanently stained. • All the reaction times reported in this manual are referred to 25 °C (77 °F). In general, the reaction time should be increased for temperature lower than 20 °C (68 °F), and decreased for temperature higher than 25 °C (77 °F).
  • Page 14 • Fill one cuvette with 10 mL of unreacted sample, up to the mark. • Place the cuvette 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 and detector icons will appear on the display, depending on the measurement phase.
  • Page 15 • Replace the cap and shake gently (for about 2 minutes) until the powder is completely dissolved. • Replace the cuvette into the holder and ensure that the notch on the cap is positioned securely into the groove. • Press and hold READ /TIMER for three seconds. The display will show the countdown prior to measurement.
  • Page 16 • At the end of measurement, the instrument directly displays concentration in mg/L of phosphate on the LCD. • To convert the reading to mg/L of phosphorus pentoxide (P ), multiply by a factor of 0.747. • To convert the reading to mg/L of phosphorus (P) concentration, multiply by a factor of 0.326. INTERFERENCES: Interference may be caused by: Iron above 50 mg/L...
  • Page 17 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. • Turn the meter on by pressing ON/OFF.
  • Page 18 • 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 HI96713‑11 Cuvette B into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove. •...
  • Page 19 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.
  • Page 20 • 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 21: 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 HI96713-11 Cuvettes, A and B are free of fingerprints or dirt and that they are inserted correctly.
  • Page 22 • 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 23: Last Calibration Date

    • The instrument will return automatically to measurement mode by displaying dashes on the LCD. In GLP mode, the last calibration date can be verified and the factory calibration can be restored. LAST CALIBRATION DATE To display the calibration date: •...
  • Page 24 • 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 indicates “donE” upon restoration of factory calibration prior to returning to measurement mode.
  • Page 25 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 26 Reagent Set Reagents for 100 tests HI93713-01 Reagents for 300 tests HI93713-03 Other Accessories CAL Check Standard Cuvettes (1 set) HI96713-11 HI740029P 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 27: 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 28 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 MAN96713...

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