Hanna Instruments HI97731 Instruction Manual
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Hanna Instruments HI97731 Instruction Manual

Zinc photometer
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HI97731
Zinc
Photometer

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Summary of Contents for Hanna Instruments HI97731

  • Page 1 HI97731 Zinc Photometer...
  • 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: Table Of Contents

    TABLE OF CONTENTS 1. PRELIMINARY EXAMINATION ................4 2. SAFETY MEASURES ..................5 3. ABBREVIATIONS ................... 5 4. SPECIFICATIONS .................... 6 5. DESCRIPTION ....................7 5.1. GENERAL DESCRIPTION & INTENDED USE ..........7 5.2. FUNCTIONAL DESCRIPTION ..............8 5.3. PRECISION & ACCURACY ............... 9 5.4.

  • Page 4: Preliminary Examination

    1. PRELIMINARY EXAMINATION Remove the instrument and accessories from the packaging and examine it carefully. For further assistance, please contact your local Hanna Instruments Office or email us at tech@hannainst.com. Each HI97731C is delivered in a rugged carrying case and is supplied with: •...

  • Page 5: Safety Measures

    2. SAFETY MEASURES • The chemicals contained in the reagent kits may be hazardous if improperly handled. • Read the Safety Data Sheets (SDS) before performing tests. • Safety equipment: Wear suitable eye protection and clothing when required, and follow instructions carefully. •...

  • Page 6: Specifications

    4. SPECIFICATIONS Range 0.00 to 3.00 mg/L (as Zn) Resolution 0.01 mg/L Accuracy ±0.03 mg/L ±3% of reading at 25 °C Zinc Adaptation of Standard Methods for the Method Examination of Water and Wastewater, Edition, Zincon Method Light source Light Emitting Diode Bandpass filter 575 nm Bandpass filter...

  • Page 7: Description

    With the CAL Check™ functionality, users are able to validate the performance of the instrument at any time and apply a user calibration (if necessary). Hanna Instruments CAL Check cuvettes are made with NIST traceable standards.

  • Page 8: 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 key to perform the function displayed above it on the LCD. Press and hold to power off/on.

  • Page 9: Precision & Accuracy

    5.3. PRECISION & 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. The figure explains these definitions.

  • Page 10: Optical System

    5.5. OPTICAL SYSTEM Instrument Block Diagram The internal reference system (reference detector) of the HI97731 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 11: General Operations

    6. GENERAL OPERATIONS 6.1. METER VALIDATION: CAL CHECK & CALIBRATION Validation of the HI97731 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).
  • Page 12 • “OUT OF SPECIFICATION“: A user calibration is not allowed, the measured value is outside of the tolerance window. Check the certified value, expiration date and clean the outside of the cuvette. Repeat the CAL Check procedure. If this error continues, contact your nearest Hanna Instruments Customer Service Center.

  • Page 13: Glp

    6.2. GLP key to enter the menu. Use the functional keys to select GLP and Press the press Select. Good Laboratory Practice (GLP) shows the date and time of the last user calibration (if available) or factory calibration. To erase the last user calibration and to clear the CAL Check, press Clear and follow the prompts.

  • Page 14: General Setup

    Press Del All to erase all the logged data. If Del All is pressed, follow the prompt to confirm. Press Yes to delete all logged data, No or the key to return to the log recall. 6.4. GENERAL SETUP key to enter the menu. Use the functional keys to select Setup and Press the press Select.
  • Page 15 Time Format Option: AM/PM or 24-hour Press the functional key to select the desired time format. Date Format Press Modify to change the date format. Use the functional keys to select the desired key to return to the Setup menu without format.

  • Page 16: Reagents & Accessories

    Reagents / Accessories and press Select to access a list of reagents and accessories. To exit press the key. 6.6. CONTEXTUAL HELP HI97731 offers an interactive contextual help mode that assists the user at any time. To access the help screen press the key.

  • Page 17: Battery Management

    The meter will perform an auto-diagnostic test when it is powered on. During this test, ® the Hanna Instruments logo will appear on the LCD. If the auto-diagnostic test was successful, the meter is ready for use. The battery icon on the LCD will indicate the battery status: •...

  • Page 18: Photometer

    7. PHOTOMETER 7.1. COLLECTING & MEASURING REAGENTS AND SAMPLES Proper Use of Powder Packet 1. Use scissors to open the powder packet. 2. Push the edges of the packet to form a spout. 3. Pour out the content of the packet. Proper Use of Syringe 1.

  • Page 19: Cuvette & Vial Preparation

    7.2. CUVETTE & VIAL PREPARATION Proper mixing is very important for reproducibility of the measurements. The proper mixing technique is listed in the method procedure. (a) The mixing method is indicated with “swirl“ using one of the following icons: (b) Invert the cuvette a couple of times or for a specified time: hold the cuvette in the vertical position.
  • Page 20 Whenever the cuvette is placed into the measurement holder, it must be dry outside and free of fingerprints, oil or dirt. Wipe it thoroughly with HI731318 microfiber cleaning cloth or a lint-free wipe 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 21: Method Procedure

    8. METHOD PROCEDURE REQUIRED REAGENTS Code Description Quantity HI93731A-0 Zinc Reagent A 1 packet HI93731B-0 Zinc Reagent B 0.5 mL REAGENT SETS HI93731-01 Zinc Reagent - 100 tests HI93731-03 Zinc Reagent - 300 tests For other accessories see ACCESSORIES section. MEASUREMENT PROCEDURE Note: If tutorial mode is disabled, follow the measurement procedure below.
  • Page 22 • Press Zero. The display will show “-0.0-” when the meter is zeroed and ready for measurement. • Remove the cuvette. • Add 0.5 mL of HI93731B-0 Zinc Reagent B. Replace the plastic stopper and the cap. Swirl gently for 15 seconds. •...

  • Page 23: Warning & Error Descriptions

    Ensure that the notch on the cap is positioned securely in the groove before performing any measurements. If the issue persists, please contact Hanna Instruments technical support. The sample and the zero cuvettes are inverted. Swap the cuvettes and repeat the measurement.
  • Page 24 English is the only available language. Help function is not available. Restart the meter. If the issue persists, please contact Hanna Instruments technical support. Battery level is too low for the meter to function properly. Replace the batteries with new ones.

  • Page 25: Battery Replacement

    1 mL graduated syringe (6 pcs.) HI740144 pipette tip (6 pcs.) HI740220 25 mL graduated glass vial (2 pcs.) HI740229 100 mL graduated cylinder HI93703-50 cuvette cleaning solution (230 mL) ® HI97731-11 CAL Check standards for Zinc - cuvette kit...

  • Page 26: Certification

    If the repair is not covered by the warranty, you will be notified of the charges incurred. If the meter is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization (RGA) number from the Technical Service department and then send it with shipping costs prepaid.
  • Page 27 Hanna Instruments reserves the right to modify the design, construction or appearance of its products without advance notice.
  • Page 28 World Headquarters Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA www.hannainst.com MAN97731 Printed in ROMANIA...

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