Hanna Instruments HI 8043 Instruction Manual
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Hanna Instruments HI 8043 Instruction Manual

Hanna Instruments HI 8043 Instruction Manual

Portable dissolved oxygen meter
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Instruction Manual
HI 8043
Portable
Dissolved Oxygen Meter
1

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Summary of Contents for Hanna Instruments HI 8043

  • Page 1 Instruction Manual HI 8043 Portable Dissolved Oxygen Meter...

  • Page 2: Table Of Contents

    PRELIMINARY EXAMINATION Remove the instrument from the packing ma- Dear Customer, terial and examine it to make sure that no Thank you for choosing a Hanna Instruments damage has occurred during shipping. If there Product. is any damage, notify your Dealer.

  • Page 3: Functional Description (Probe)

    The thin permeable membrane isolates the FUNCTIONAL DESCRIPTION (METER) sensor elements from the sample, but allows oxygen to enter. A voltage is applied across the sensor, and the oxygen that has passed through the mem- brane reacts causing the current to flow, hence determining a reading.

  • Page 4: Specifications

    SPECIFICATIONS PROBE INITIAL PREPARATION PROBE PREPARATION Range 0.00 to 19.99 mg/L O 0.0 to 50.0°C (32 to 122 °F) All DO probes are shipped dry. To hydrate Resolution 0.01 mg/L O the probe and prepare it for use, connect it to 0.1°C the meter and proceed as follows.

  • Page 5: Dissolved Oxygen Calibration

    PROBE POLARIZATION DISSOLVED OXYGEN CALIBRATION When the probe is under polarization it is continuously fed with a voltage of approxi- The calibration should be verified: mately 800 mV. Probe polarization is essential for stable mea- • after approximately 20 hours of use surements to be taken with the same degree •...
  • Page 6 • Using a small screwdriver, turn the "Zero" E.g. at 20.5°C the trimmer should be ad- calibration trimmer until the display reads justed to read 9.08. zero. ALTITUDE COMPENSATION If the calibration is not performed at sea level, • If the zero point is a correction should be made for the altitude passed, "1"...
  • Page 7 Table 1 Table 2 Dissolved Oxygen (ppm) in Fresh Water Correction for measurements as a function of Temperature (°C) at different altitude ATMOSPHERIC °C ALTITUDE CORRECTION 14.62 14.58 14.54 14.50 14.46 14.43 14.39 14.35 14.31 14.27 (METERS) PRESSURE FACTOR 14.23 14.19 14.15 14.11...

  • Page 8: Temperature Calibration

    Table 3 TEMPERATURE CALIBRATION Correction for salinity effect The temperature scale should be calibrated Quantity to be Quantity to be °C °C at least every 3 months or whenever the subtracted per mg/l subtracted per mg/l of readings are in doubt. of NaCl NaCl •...

  • Page 9: Taking Measurements

    PROBE & MEMBRANE MAINTENANCE TAKING MEASUREMENTS The D.O. probe body is made of reinforced Make sure the meter has been plastic for maximum durability. calibrated and the protective A thermistor temperature sensor provides tem- cap has been removed. perature measurements and compensation. Immerse the tip of the probe When not in use, it is always recommended in the sample to be tested.

  • Page 10: Battery Replacement

    • With the sensor facing down, screw the BATTERY REPLACEMENT membrane cap clockwise. Some electro- lyte will overflow. The Platinum cathode (#8 in the Functional When the battery level is Description at page 4) should always be bright low, a "V" will be displayed and untarnished.

  • Page 11: Accessories

    If the repair is not covered by the warranty, you will be notified of the charge for repair or replacement. If the instrument is to be returned to Hanna Instruments, obtain a Return Goods Authorization from the Cus- tomer Service Department first and then send it with shipment cost prepaid.

  • Page 12: Ce Declaration Of Confirmity

    CE DECLARATION OF CONFORMITY Recommendations for Users Before using this product, make sure that it is entirely suitable for the environment in which it is used. Operation of this instrument in residential area could cause unacceptable interfer- ences to radio and TV equipments, requiring the operator to take all necessary steps to correct interferences.
  • Page 13 SALES AND TECHNICAL SERVICE CONTACTS Australia: Tel. (03) 9769.0666 • Fax (03) 9769.0699 China: Tel. (10) 88570068 • Fax (10) 88570060 Egypt: Tel. & Fax (02) 2758.683 Germany: Tel. (07851) 9129-0 • Fax (07851) 9129-99 Greece: Tel. (210) 823.5192 • Fax (210) 884.0210 Indonesia: Tel.

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