Hanna Instruments HI97721 Instruction Manual
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Hanna Instruments HI97721 Instruction Manual

Iron high range photometer
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HI97721
Iron High Range
Photometer

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Summary of Contents for Hanna Instruments HI97721

  • Page 1 HI97721 Iron High Range Photometer...
  • Page 2 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: Table Of Contents

    1. PRELIMINARY EXAMINATION ................4 2. SAFETY MEASURES ..................4 3. SPECIFICATIONS .................... 5 4. ABBREVIATIONS ................... 5 5. DESCRIPTION ....................6 5.1. GENERAL DESCRIPTION AND INTENDED USE ........... 6 5.2. FUNCTIONAL DESCRIPTION ..............7 5.3. PRECISION AND ACCURACY ..............8 5.4.

  • Page 4: Preliminary Examination

    • Instruction manual • Meter quality certificate • CAL Check standard certificate Each HI97721 is delivered in a cardboard box and is supplied with: • Sample cuvette (2 pcs.) • Sample cuvette cap (2 pcs.) • Plastic stopper (2 pcs.) •...

  • Page 5: Specifications

    3. SPECIFICATIONS Range 0.00 to 5.00 mg/L (as Fe) Iron High Resolution 0.01 mg/L Range Accuracy ±0.04 mg/L ±2% of reading at 25 °C Adaptation of Standard Methods for the Method Examination of Water and Wastewater, 23rd Edition, 3500-Fe B, Phenanthroline Method Light source Light Emitting Diode Bandpass filter...

  • Page 6: Description

    5. DESCRIPTION 5.1. GENERAL DESCRIPTION AND INTENDED USE HI97721 is an auto-diagnostic portable meter that benefits from Hanna’s years of experience as a manufacturer of analytical instruments. It has an advanced optical system that uses a Light Emitting Diode (LED) and a narrow band interference filter that allows for accurate and repeatable readings.

  • Page 7: Functional Description

    5.2. FUNCTIONAL DESCRIPTION 1) ON/OFF power button 3) Liquid Crystal Display (LCD) 5) Indexing mark 2) Keypad 4) Cuvette holder 6) Battery cover Keypad Description The keypad contains 3 direct keys and 3 functional keys with the following functions: Press the functional keys to perform the function displayed above them on the LCD. Press and hold to power off/on.

  • Page 8: Precision And Accuracy

    5.3. PRECISION AND ACCURACY Precision is how closely repeated measurements are to one another. Precision is usually expressed as standard deviation (SD). Accuracy is defined as the closeness of a test result to the true value. Although good precision suggests good accuracy, precise results can be inaccurate.

  • Page 9: Optical System

    5.5. OPTICAL SYSTEM Instrument Block Diagram The internal reference system (reference detector) of the HI97721 photometer compensates for any drifts due to power fluctuations or ambient temperature changes, providing a stable source of light for your blank (zero) measurement and sample measurement.

  • Page 10: General Operations

    6. GENERAL OPERATIONS 6.1. METER VALIDATION: CAL CHECK/CALIBRATION Validation of the HI97721 involves verifying the concentration of the certified CAL Check standards. The CAL Check screen guides the user step-by-step through the validation process and user calibration (if necessary). WARNING: Do not use any solutions/standards other than the Hanna CAL Check ®...

  • Page 11: Glp

    6. When the CAL Check is complete the display will show one of the following messages and the value obtained during the measurement: - “PASSED“: The measured value is within the accuracy specification, no user calibration is required. - “OUT OF SPECIFICATION“ and the Calibration key is available: The measured value is near the expected value.

  • Page 12: General Setup

    key to enter the menu. Use the functional   keys to select Log Press the Recall and press Select. Use the functional   keys to highlight a log and press Info to view additional information about the log. From this screen the Next and Previous keys can be used to view other logs.
  • Page 13 Contrast Values: 0 to 100 % Press the Modify key to change the display’s contrast. Use the   keys to increase or decrease the value. Press the Accept key to confirm the value or the key to return to the Setup menu without saving the new value.
  • Page 14 Language Press the Modify key to change the language. Use the   keys to select the desired language. Press Accept to choose one of the languages installed. Beeper Option: Enable or Disable When enabled, a short beep is heard every time a key is pressed.

  • Page 15: Reagents/Accessories

    Reagents/Accessories and press Select to access a list of reagents and accessories. To exit press key. 6.6. CONTEXTUAL HELP HI97721 offers an interactive contextual help mode that assists the user at any time. To access the help screen press the key.

  • Page 16: Photometer

    7. PHOTOMETER 7.1. PROPER USE OF POWDER PACKET (a) Use scissors to open the powder packet (b) Push the edges of the packet to form a spout (c) Pour out the content of the packet 7.2. CUVETTE PREPARATION Proper mixing is very important for reproducibility of the measurements. The proper mixing technique for each method is listed in the method procedure.
  • Page 17 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. Do not let the reacted sample stand too long after reagent has been added. For best accuracy, respect the timings described in each specific method.

  • Page 18: Method Procedure

    8. METHOD PROCEDURE REQUIRED REAGENTS Code Description Quantity HI93721-0 Iron High Range Reagent 1 packet REAGENT SETS HI93721-01 Iron HR Reagent - 100 tests HI93721-03 Iron HR Reagent - 300 tests For other accessories see page 21. MEASUREMENT PROCEDURE Note: If tutorial mode is disabled follow the measurement procedure below. If the tutorial mode is enabled, press Measure and follow the messages on the screen.
  • Page 19 • Add the contents of one packet of HI93721-0 Iron High Range Reagent. Replace the plastic stopper and the cap. Shake gently until the powder is completely dissolved. • Insert the cuvette into the holder and ensure that the notch on the cap is positioned securely in the groove. •...

  • Page 20: Error Descriptions

    9. ERROR DESCRIPTIONS The instrument shows clear warning messages when erroneous conditions appear and when measured values are outside the expected range. These messages are described below. No Light: The light source is not functioning properly. Light Leak: There is an excess amount of ambient light reaching the detector.

  • Page 21: Battery Replacement

    HI977xx and 2 CAL Check cuvettes HI731318 cloth for wiping cuvettes (4 pcs.) HI731331 glass cuvettes (4 pcs.) HI731336N cap for cuvette (4 pcs.) HI93703-50 cuvette cleaning solution (230 mL) HI97721-11 CAL Check standards for iron HR - cuvette kit ®...

  • Page 22: Certification

    Certification All Hanna Instruments conform to the CE European Directives. Disposal of Electrical & Electronic Equipment. The product should not be treated as household waste. Instead hand it over to the appropriate collection point for the recycling of electrical and electronic equipment which will conserve natural resources.

  • Page 23: Warranty

    Technical Service department and then send it with shipping costs prepaid. When shipping any meter, make sure it is properly packed for complete protection. Hanna Instruments reserves the right to modify the design, construction or appearance of its products without advance notice.
  • Page 24 World Headquarters Hanna Instruments Inc. Highland Industrial Park 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: 401.765.7575 e-mail: tech@hannainst.com MAN97721...

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