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Summary of Contents for Hanna Instruments HI 8733
- Page 1 Instruction Manual HI 8633 HI 8733 - HI 8734 Reliable and Waterproof Multi-Range Conductivity Meters 1.800.561.8187 information@itm.com www. .com...
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Page 2: Table Of Contents
WARRANTY WARRANTY WARRANTY HI 8633, HI 8733 and HI 8734 are guaranteed for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. Electrodes and probes are guaranteed for six months. This warranty is limited to repair or replacement free of charge. -
Page 3: Preliminary Examination
GENERAL DESCRIPTION HI 8633 and HI 8733 have been designed specifically for use in the areas of production and quality control. It is often necessary to test samples with different concentrations ranging from deionized water to brine. -
Page 4: Functional Description & Specifications Of Hi 8633
FUNCTIONAL DESCRIPTION & SPECIFICATIONS OF HI 8633 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 µ m c µ m c l o s i t u u c c ±... -
Page 5: Functional Description & Specifications Of Hi 8733
FUNCTIONAL DESCRIPTION & SPECIFICATIONS OF HI 8733 1) Liquid Crystal Display 2) Measurement range selection keys 3) EC calibration knob 4) Automatic Temperature Compensation coefficient knob 5) On/Off key µ m c µ m c l o s i t u u c c ±... -
Page 6: Functional Description & Specifications Of Hi 8734
FUNCTIONAL DESCRIPTION & SPECIFICATIONS OF HI 8734 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 L / g L / g L / g l o s i t u L / g... -
Page 7: Operational Guide
• 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 HI 8733: • Adjust the TEMPERATURE COEFFICIENT knob to 2% to compensate for the temperature effect of average solutions (to determine exact value for a particular solution, see page 15). - Page 8 Note: If the display shows only a “1” on the far left hand side, the meter is out of range. Select the next (higher) range. • Wait for a couple of minutes for the temperature sensor to reach thermal equilibrium with the sample before taking measurements. •...
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Page 9: Calibration
Use for example HI 7030 or HI 8030, 12880 µS/cm (=12.88 mS/cm) conductivity solution, for HI 8633 and HI 8733, and HI 7032, 1382 mg/L (=2764 µS/cm) TDS solution, for HI 8734. • ChecktempC or another accurate thermometer with 0.1°C resolution (not necessary for HI 8733). - Page 10 • Press and hold down Temp to display the temperature. • Adjust the TEMPERATURE knob to display 20°C. • Release Temp key to display conductivity measurement. • Select 19.99 mS/cm (HI 8633) or 1999 mg/L (HI 8734) range by pressing the appropriate range key.
- 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 HI 8733 • Pour sufficient quantity of a conductivity calibration solution (e.g. HI 7030/ HI 8030) 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”...
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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
T D S V E R S U S T E M P E R A T U R E C H A R T The TDS value in aqueous solutions is directly proportional to conductivity. The ratio between the two parameters depends on the solution and usually it is set to a factor of 0.5 (corresponding to a ). -
Page 15: Determining The Temperature Coefficient Of A Solution (Hi 8733)
5°C or preferably 10°C: • Immerse the probe of HI 8733 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 12880 µS/cm, 500 mL bottle HI 7030L 12880 µS/cm, 230 mL bottle HI 7030M 1413 µS/cm, 500 mL bottle HI 7031L 1413 µS/cm, 230 mL bottle HI 7031M 84 µS/cm, 500 mL bottle HI 7033L 84 µS/cm, 230 mL bottle HI 7033M 80000 µS/cm, 500 mL bottle HI 7034L... - Page 19 Use plastic beakers to minimize any EMC interferences. To avoid damage or burns, do not perform any measurement in microwave ovens. Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice. 1.800.561.8187 information@itm.com...
- Page 20 Printed in EUROPE MAN8734Y 07/10 (ROMANIA) 1.800.561.8187 information@itm.com www. .com...
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