Hanna Instruments HI93703-11 Instruction Manual
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Hanna Instruments HI93703-11 Instruction Manual

Portable logging turbidity meter with rs232
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HI93703-11
Portable Logging
Turbidity Meter
with RS232

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Summary of Contents for Hanna Instruments HI93703-11

  • Page 1 HI93703-11 Portable Logging Turbidity Meter with RS232...
  • Page 2 For technical support, contact your local Hanna Instruments Office or e-mail us at tech@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. GENERAL DESCRIPTION ............5 3. PRINCIPLE OF OPERATION .............7 4. FUNCTIONAL DESCRIPTION ............8 5. SPECIFICATIONS ..............9 6. OPERATIONAL GUIDE ............10 6.1. MEASUREMENT PROCEDURE........10 6.2. LOG-ON-DEMAND .............12 6.3. CLEARING LOGGED DATA ..........13 6.4. VIEWING LOGGED DATA ..........13 6.5.

  • Page 4: Preliminary Examination

    1. PRELIMINARY EXAMINATION Remove the meter from the packing material and examine it carefully. For further assistance, please contact your local Hanna Instruments Office or email us at tech@hannainst.com. Each HI93703-11 is delivered in rugged carrying case and is supplied with: •...

  • Page 5: General Description

    The PC communication is made through a serial port of your computer and the 5-pin socket on the meter. Note: HI93703-11 has been designed according to the ISO 7027 International Standard, consequently the turbidity measurement units are expressed in FTU (Formazine Turbidity Unit).
  • Page 6 HANNA instruments® standards are extremely stable, can be reused, and last up to six months, if free from contamination.

  • Page 7: Principle Of Operation

    3. PRINCIPLE OF OPERATION HI93703-11 has been designed to perform measurements according to the ISO 7027 International Standard. The instrument functions by passing a beam of infrared light through a vial containing the sample being measured. A sensor, positioned at 90° with respect to the direction of light, detects the amount of light scattered by the undissolved particles present in the sample.

  • Page 8: Functional Description

    4. FUNCTIONAL DESCRIPTION 1. Measurement cell 2. LCD (Liquid Crystal Display) 3. ON/OFF/CLR key, to turn the meter ON and OFF, and to clear log memory 4. GLP/CAL key, to display last calibration date & time, and to enter calibration mode 5.

  • Page 9: Specifications

    5. SPECIFICATIONS Range 0.00 to 50.00 FTU* 50 to 1000 FTU* Resolution 0.01 and 1 FTU* Accuracy ±0.5 FTU* or ±5% of reading (whichever is greater) Calibration 3 point (0, 10 and 500 FTU*) Light Source Infrared LED Light Source Life Life of the instrument Light Detector Silicon photocell...

  • Page 10: Operational Guide

    6. OPERATIONAL GUIDE To prepare the instrument for taking measurements, first install the batteries (see Battery Replacement section) and then turn the instrument on. To maximize battery-life, the display is automatically switched off after 5-minutes of non-use. To reactivate the display, simply press the ON/OFF key.
  • Page 11 • Allow sufficient time for bubbles to escape before securing the cap. Note: Do not overtighten the cap. Note: Wipe the cuvette thoroughly with a lint-free tissue (HI93703-70) before inserting into the measurement cell. The cuvette must be completely free of fingerprints and other oil or dirt, particularly in the area where the light goes through (approx.

  • Page 12: Log-On-Demand

    Even though HI93703-11 covers a very wide range of turbidity values, for very accurate measurements of samples exceeding 40FTU*, Standard Methods require dilution. In such cases, the correct amount of HI93703-0 or turbidity-free water to be added to the sample can be calculated as follows:...

  • Page 13: Clearing Logged Data

    Note: When the maximum number of samples has been reached (199), the LCD display will show “FULL”. This is a warning that you will be overwriting the oldest sample recorded. To store the current sample, press the STO button again and this will overwrite the oldest sample in the memory.

  • Page 14: Viewing And Setting Date And Time

    • Press the right arrow to scroll between turbidity value, date and time of the sample. • Press the UP/DOWN arrows to view the samples and use the right arrow to scroll the date and time . • Press ALT & VIEW again to exit this mode. 6.5.

  • Page 15: Error Codes

    • Press right arrow to scroll to month and day, use UP/DOWN to set. • Press right arrow again to scroll to time, use UP/DOWN to set. • Press right arrow again to save and exit date and time setup. Note: Press ALT &...
  • Page 16 • Internal communication error* • Internal Bus error* * Contact the Hanna Instruments office nearest to you. Ensure Accurate Measurements • Each time the cuvette is used, tighten the cap to the same degree. • Discard the sample soon after the reading is taken to avoid permanently clouding the glass.
  • Page 17 • Presence of floating debris and coarse sediments which settle out rapidly will give false readings. • The infrared light source used for HI93703-11 turbidity meter, complies with the ISO 7027 International Standard and can effectively minimize any errors due to colored dissolved substances.

  • Page 18: Calibration

    7. CALIBRATION To check the date of last calibration, simply press the GLP/CAL key. Press again to toggle between date and time. To make sure that the meter is calibrated, take a measure of a standard solution. The instrument can be calibrated at two or three points and a monthly calibration is recommended.
  • Page 19 • If “ERR1” appearson the LCD, please check the standard solution. • After approximately 30 seconds the meter will display 10.00, prompting the user to place the 10.00 FTU standard solution in the cuvette holder. • Place the 10.00 FTU standard in the holder press CAL, SIP and CL will start blinking.

  • Page 20: Viewing Calibration Date

    • Press CAL, SIP and CL will start blinking. • After approximately 30 seconds the LCD will display “----”. Now the instrument is calibrated and ready for use. Note: If “ERR1” is displayed, the calibration data is maintained. 7.2. VIEWING CALIBRATION DATE To display the last calibration time and date, press the GLP button to toggle through the date and time.

  • Page 21: Ensure Accurate Calibration

    Lower concentrations change value within a few days or hours after dilution. The consistency of HI93703-11 readings by using both standards has been separately established by Advanced Polymer Systems and Hanna Instruments. Additional documentation about the formazine standard and more complex calibration procedures is available upon request.

  • Page 22: Battery Replacement

    8. BATTERY REPLACEMENT All components have been selected to minimize current drain without compromising functionality. In order to minimize the battery consumption, the meter is equipped with an auto-shut off function which switches the meter off after 5 minutes of non-use. The four 1.5V batteries guarantee 60 hours of working life (or 900 measurements).

  • Page 23: Pc Connection

    The auto shut-off feature is also disabled when the meter is connected to a computer. To allow our users access to the latest version of Hanna Instruments PC compatible software, we made the products available for download at http://software.hannainst.com. Select the product code and click Download Now.

  • Page 24: Accessories

    10. ACCESSORIES HI731318 Tissue for wiping cuvettes (4 pcs) HI731321 Spare glass cuvette (4 pcs) HI731313 Maintenance kit: rugged carrying case including HI93703-0 HI93703-10 calibration solutions, HI93703-50 cuvette cleaning solution, 1 tissue for wiping cuvettes and 2 cuvettes HI93703-0 AMCO-AEPA-1 @0 FTU* calibration solution, 30 mL HI93703-05 AMCO-AEPA-1 @500 FTU* calibration...

  • Page 25: 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 26: Warranty

    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 MAN93703-11 Printed in ROMANIA...

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