Related Manuals for Hanna Instruments HI 9143
Summary of Contents for Hanna Instruments HI 9143
- Page 1 Instruction Manual HI 9143 • HI 9145 Portable D.O. Meters in Water-Resistant Casing w w w . h a n n a i n s t . c o m...
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Page 2: Table Of Contents
Dear Customer, PRELIMINARY EXAMINATION Thank you for choosing a HANNA product. Remove the instrument from the packing material Please read this instruction manual carefully and examine it to make sure that no damage before using the instrument. has occurred during shipping. If there is any This manual will provide you with the neces- damage, immediately notify your dealer. -
Page 3: Functional Description - Probe
The dissolved oxygen probe is provided with a FUNCTIONAL DESCRIPTION - METER membrane covering the polarographic sensor elements, and a built-in thermistor for tempera- ture measurement and compensation. The thin permeable membrane isolates the sensor elements from the testing solution, but allows oxygen to enter. -
Page 4: Specifications
PROBE PREPARATION SPECIFICATIONS All HANNA D.O. probes are shipped dry. To HI 9143 HI 9145 hydrate the probe and prepare it for use, Range 0.00 to 45.00 mg/L O connect it to the meter and proceed as fol- 0.0 to 300.0% O lows. -
Page 5: Calibration
• For an accurate calibration, it is recom- CALIBRATION mended to wait an additional 5-10 minutes to ensure optimum conditioning of the probe. PROBE POLARIZATION • Remove the protective cap. The probe is under polarization with a fixed voltage of approximately 800 mV. Probe polar- ization is essential for stable measurements with the same recurring degree of accuracy. -
Page 6: Taking Measurements
TAKING MEASUREMENTS mg/L READINGS Make sure the meter has been calibrated and the protective The mg/L mode give the dissolved oxygen cap has been removed. Im- concentration directly in ppm. merse the tip of the probe in the If the sample contains significant salinity or if sample to be tested ensuring the measurement is taken at a higher altitude that the temperature sensor is... -
Page 7: Altitude Compensation
ALTITUDE COMPENSATION SALINITY COMPENSATION HI 9143 HI 9143 SAMPLE Press FACTOR and “F1” will Press FACTOR twice and “F2” SAMPLE will be displayed. be displayed. Use the UP and DOWN keys Press the UP and DOWN keys to set the altitude from 0 to to set the salinity between 0 1900 m, in steps of 100 m. -
Page 8: Probe & Membrane Maintenance
• With the sensor facing down, screw the PROBE & MEMBRANE MAINTENANCE membrane cap clockwise. Some electro- lyte will overflow. The oxygen probe body is made of reinforced polypropylene for maximum durability. A built-in thermistor sensor measures the tem- The platinum cathode sensor should always be perature of the sample. -
Page 9: Battery Replacement
Use the HANNA adapters (such as HI 710005 BATTERY REPLACEMENT or HI 710006) with proper polarity configuration. When the batteries become LOBAT weak, the "LOBAT" indication SAMPLE appears on the LCD to warn °C the operator that the display will be shut-off after about 4 hours of use to prevent erroneous readings due to low voltage. -
Page 10: Warranty
Any variation introduced by the user to the supplied equipment may degrade the instrument's EMC performance. Hanna Instruments reserves the right to modify To avoid electrical shock, do not use these instruments when the design, construction and appearance of its voltage at the measurement surface exceeds 24 Vac or 60 Vdc. - Page 11 SALES & TECHNICAL SERVICE 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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