Hanna Instruments HI8733 Instruction Manual
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Hanna Instruments HI8733 Instruction Manual

Reliable and waterproof multi-range conductivity meters
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Instruction Manual
HI8633
HI8733 - HI8734
Reliable and Waterproof
Multi-Range
Conductivity Meters
www.hannainst.com
1

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Summary of Contents for Hanna Instruments HI8733

  • Page 1 Instruction Manual HI8633 HI8733 - HI8734 Reliable and Waterproof Multi-Range Conductivity Meters www.hannainst.com...
  • Page 2 Dear Customer, Thank you for choosing a Hanna Instruments product. Please read this instruction manual carefully before using these instruments. This manual will provide you with the necessary information for correct use of these instruments, as well as a precise idea of their versatility.

  • Page 3: Table Of Contents

    OPERATIONAL GUIDE ................. 8 CALIBRATION ................... 9 CONDUCTIVITY VERSUS TEMPERATURE CHART ........13 TDS VERSUS TEMPERATURE CHART ..........14 DETERMINING THE TEMPERATURE COEFFICIENT OF A SOLUTION (HI8733) ..15 BATTERY REPLACEMENT ..............16 PROBE MAINTENANCE ..............17 ACCESSORIES .................. 18...

  • Page 4: Preliminary Examination

    It is often necessary to test samples with different concentrations ranging from deionized water to brine. Both models can be manually calibrated at 1 point. The HI8733, with a built‑in temperature sensor and Automatic Temperature Compensation, is the perfect instrument for measuring samples with fluctuating temperature.

  • Page 5: Functional Description & Specifications Of Hi8633

    FUNCTIONAL DESCRIPTION & SPECIFICATIONS OF HI8633 1) Liquid Crystal Display 2) Measurement range selection keys 3) EC calibration knob 4) Manual temperature compensation knob 5) Temperature selection key 6) On/Off key 0.0 to 199.9 / 0 to 1999 µS/cm Range 0.00 to 19.99 / 0.0 to 199.9 mS/cm 0.1 / 1 µS/cm Resolution...

  • Page 6: Functional Description & Specifications Of Hi8733

    FUNCTIONAL DESCRIPTION & SPECIFICATIONS OF HI8733 1) Liquid Crystal Display 2) Measurement range selection keys 3) EC calibration knob 4) Automatic Temperature Compensation coefficient knob 5) On/Off key 0.0 to 199.9 / 0 to 1999 µS/cm Range 0.00 to 19.99 / 0.0 to 199.9 mS/cm 0.1 / 1 µS/cm...

  • Page 7: Functional Description & Specifications Of Hi8734

    FUNCTIONAL DESCRIPTION & SPECIFICATIONS OF HI8734 1) Liquid Crystal Display 2) Measurement range selection keys 3) TDS calibration knob 4) Manual temperature compensation knob 5) Temperature selection key 6) On/Off key 0.0 to 199.9 / 0 to 1999 mg/L Range 0.00 to 19.99 g/L 0.1 / 1 mg/L Resolution...

  • Page 8: Operational Guide

    LCD indication. • Press and hold down the Temp key to display the temperature and adjust the temperature knob to that of the solution e.g. 20 °C. For HI8733: • Adjust the TEMPERATURE COEFFICIENT knob to 2% to compensate for the...

  • Page 9: Calibration

    • Use any calibration solution within the meter’s range. The solution should ideally be close to the samples being measured. Use for example HI7030 or HI8030, 12880 µS/cm (=12.88 mS/cm) conductivity solution, for HI8633 and HI8733, and HI7032, 1382 mg/L (=2764 µS/cm) TDS solution, for HI8734.
  • Page 10 • Record the temperature of the buffer solution from the thermometer (e.g. 20 °C). • Switch the instrument on by pressing On/Off. • Press and hold down Temp to display the temperature. • Adjust the TEMPERATURE knob to display 20 °C. •...
  • Page 11 Note: For more accurate results, it is advisable to use a calibration solution close to the measurement range. See the “Accessories” section for a wide selection of conductivity solutions. PROCEDURE FOR HI8733 • Pour sufficient quantity of a conductiv‑ ity calibration solution (e.g. HI7030/ HI8030) into a beaker to cover the holes on the probe.
  • Page 12 • Follow LCD calibration indication. Adjust the calibration knob until the display shows “12.88 mS” i.e. the conductivity reading @ 25 °C. • All subsequent measurements will be compensated to 25 °C (77 °F). If you prefer to standardize the temperature compensation to 20 °C (68 °F) rather than 25 °C (77 °F), adjust the knob to read “11.67 mS”...

  • Page 13: Conductivity Versus Temperature Chart

    CONDUCTIVITY VERSUS TEMPERATURE CHART The conductivity of an aqueous solution is the measure of its ability to carry an electrical current by means of ionic motion. The conductivity invariably increases with increasing temperature. It is affected by the type and number of ions in the solution and by the viscosity of the solution itself.

  • Page 14: Tds Versus Temperature Chart

    TDS VERSUS TEMPERATURE CHART The TDS value in aqueous solutions is directly proportional to conduc‑ tivity. The ratio between the two parameters depends on the solution and usually it is set to a factor of 0.5 (corresponding to a solution of ).

  • Page 15: Determining The Temperature Coefficient Of A Solution (Hi8733)

    5 °C or preferably 10 °C: • Immerse the probe of HI8733 in the test solution and turn the TEMPERATURE COEFFICIENT knob to 0% (no compensation). • Check the conductivity reading and record the value. Make sure the reading is stable, i.e.

  • Page 16: Battery Replacement

    BATTERY REPLACEMENT When battery becomes weak the meter will display the battery symbol as empty. When the low battery indicator appears, the battery has only a few hours left. A low battery will result in unreliable measurements. It is recommended to replace the battery immediately. Battery replacement must only take place in a nonhazardous area using a 9V alkaline battery.

  • Page 17: Probe Maintenance

    PROBE MAINTENANCE Rinse the probe with tap water after every series of measurements. If a more thorough cleaning is required, remove the PVC sleeve and clean the probe with a cloth or a nonabrasive detergent. When reinserting the sleeve onto the probe, be sure that the sleeve is in the right direction with the four holes towards the cable end.

  • Page 18: Accessories

    ACCESSORIES CALIBRATION SOLUTIONS HI7030L 12880 µS/cm, 500 mL bottle HI7030M 12880 µS/cm, 230 mL bottle HI7031L 1413 µS/cm, 500 mL bottle HI7031M 1413 µS/cm, 230 mL bottle HI7033L 84 µS/cm, 500 mL bottle HI7033M 84 µS/cm, 230 mL bottle HI7034L 80000 µS/cm, 500 mL bottle HI7034M 80000 µS/cm, 230 mL bottle...
  • Page 19 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 Technical Service department and then send it with shipping costs prepaid.
  • Page 20 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 MAN8734 07/18...

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