Hanna Instruments HI97734 Instruction Manual
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Hanna Instruments HI97734 Instruction Manual

Free and total chlorine high range photometer
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HI97734
Free and Total
Chlorine High Range
Photometer

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Summary of Contents for Hanna Instruments HI97734

  • Page 1 HI97734 Free and Total Chlorine 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 ................ 2. SAFETY MEASURES ..................3. SPECIFICATIONS ..................4. ABBREVIATIONS ..................5. DESCRIPTION ....................5.1. GENERAL DESCRIPTION AND INTENDED USE ........... 5.2. FUNCTIONAL DESCRIPTION ..............5.3. PRECISION AND ACCURACY ..............5.4. PRINCIPLE OF OPERATION ..............5.5. OPTICAL SYSTEM .................. 6.

  • Page 4: Preliminary Examination

    • Instruction manual • Meter quality certificate • CAL Check standard certificate Each HI97734 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 10.00 mg/L (as Cl Resolution 0.01 mg/L Chlorine (all methods) Accuracy ±0.03 mg/L ±3% of reading at 25 °C Method Adaptation of EPA DPD method 330.5 Light source Light Emitting Diode Bandpass filter 525 nm Bandpass filter 8 nm bandwidth...

  • Page 6: Description

    5. DESCRIPTION 5.1. GENERAL DESCRIPTION AND INTENDED USE HI97734 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 HI97734 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 To perform a CAL Check: 1. Press the key to enter menu. Use the   keys to select CAL Check/Calibration and press Select. The “Not Available“ message or the date/time and status of the last CAL Check will be displayed on the screen.

  • Page 11: Glp

    ‑ “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 Customer Service Center. 6.2.

  • Page 12: General Setup

    Press No or the key to return to the previous screen. Press Yes to delete selected log. 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.
  • Page 13 Date Format Press the Modify key to change the date format. Use the   keys to select the desired format. Press the Accept key to confirm or the key to return to the Setup menu without saving the new format.

  • Page 14: Reagents/Accessories

     keys to select Reagents/Accessories and press Select to access a list of reagents and accessories. To exit press the key. 6.6. CONTEXTUAL HELP HI97734 offers an interactive contextual help mode that assists the user at any time. To access the help screen press the key.

  • Page 15: Photometer

    To conserve battery, the meter will turn off automatically after 15 minutes of inactivity. If a zero reading has been done but not a read, auto‑off time is increased to 30 minutes. 7. PHOTOMETER 7.1. METHOD SELECTION Press Methods when in measurement mode to access the list of methods.

  • Page 16: Proper Use Of Dropper Bottle

    7.2.3. PROPER USE OF DROPPER BOTTLE (a) For reproducible results, tap the dropper on the table several times and wipe the outside of the tip with a cloth. (b) Always keep the dropper bottle in a vertical position while dosing the reagent.

  • Page 17: Method Procedure

    8. METHOD PROCEDURE Note: Free and Total Chlorine have to be measured separately with fresh unreacted samples following the related procedures if both values are desired. 8.1. FREE CHLORINE HR REQUIRED REAGENTS Code Description Quantity HI93701‑0 Free Chlorine Reagent 1 packet HI93734B‑0 Free and Total Chlorine Reagent 5 mL REAGENT SETS...
  • Page 18 • Insert the cuvette into the holder and ensure that the notch on the cap is positioned securely in the groove. • Press the ZERO key. The display will show “-0.0-” when the meter is zeroed and ready for measurement. •...
  • Page 19 • Press the Read key and the display will show a 1 minute countdown prior to the measurement. To skip the timer press Read twice. When the timer ends the meter will perform the reading. The instrument displays the results in mg/L of chlorine (Cl INTERFERENCES Interference may be caused by:...

  • Page 20: Total Chlorine Hr

    8.2. TOTAL CHLORINE HR REQUIRED REAGENTS Code Description Quantity HI93701‑0 Free Chlorine Reagent 1 packet HI93734B‑0 Free and Total Chlorine Reagent 5 mL HI93734C‑0 Total Chlorine Reagent 3 drops REAGENT SETS HI93734‑01 Free and Total Chlorine Reagent HR ‑ 100 tests HI93734‑03 Free and Total Chlorine Reagent HR ‑...
  • Page 21 • Insert the cuvette into the holder and ensure that the notch on the cap is positioned securely in the groove. • Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for measurement. •...
  • Page 22 • Press the Read key and the display will show a 2 minute 30 second countdown prior to the measurement. To skip the timer press Read twice. When the timer ends the meter will perform the reading. The instrument displays the results in mg/L of chlorine (Cl INTERFERENCES Interference may be caused by:...

  • Page 23: 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 24: Battery Replacement

    10. BATTERY REPLACEMENT To replace the instrument’s batteries, follow these steps: • Turn the instrument off by pressing and holding the key. • Remove the battery cover by turning it counterclockwise. • Remove the old batteries, replace them with three new 1.5V AA batteries. •...

  • Page 25: Accessories

    (4 pcs.) HI740236 5 mL graduated syringe (6pcs.) HI740144 pipette tip (6 pcs.) HI740157P plastic refilling pipette (20 pcs.) HI93703‑50 cuvette cleaning solution (230 mL) HI97734‑11 CAL Check standards for free and total chlorine HR ‑ cuvette kit ®...

  • Page 26: 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 27: Warranty

    (engraved on the bottom of the meter) and the nature of the problem. 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 28 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 MAN97734...

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