User manual HANNA INSTRUMENTS HI 933000

[. . . ] Untitled-19 1 2 Instruction Manual HI 8033 - HI 8633 HI 8733 - HI 8734 HI 933000 Portable Multi-Range Conductivity/TDS Meters mS Dear Customer, Thank you for choosing a Hanna Product. Please read this instruction manual carefully before using the instrument. It will provide you with the necessary information for a correct use of the instrument, as well as a more precise idea of its versatility. These instruments are in compliance with the directives EN 50081-1 and EN 50082-1. TABLE OF CONTENTS PRELIMINARY EXAMINATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The instrument should be re-calibrated at least once a month, or when the probe or battery is changed. Note: For more accurate results, it is advisable to use a calibration solution close to the measurement range . See the accessories section on page 23 for a wide selection of conductivity solutions. TEMPERATURE COEFFICIENT 19. 99 mS · Adjust the calibration trimmer (see page 6, #5) on the side of the instrument with the calibration screwdriver until the display shows "12. 88 mS" i. e. the conductivity reading @ 25°C. mS mS · 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 trimmer to read "11. 67 mS" (see the conductivity vs. · The calibration is now complete and the instrument is ready for use. 13 14 HI 7 03 COND. PROCEDURE FOR HI 8733 0 Untitled-19 15 16 The instrument should be re-calibrated at least once a month, or when the probe or battery is changed. Note: For more accurate results, it is advisable to use a calibration solution close to the range to be measured. See the accessories section on page 23 for a wide selection of conductivity solutions. · Immerse the TDS probe, making sure that holes are completely submerged, and the ChecktempC in the solution. · Wait for a couple of minutes for thermal equilibrium to be reached. · Tap the probe on the bottom, then shake it while rotating to make sure no air bubbles remain trapped in the sleeve. · Record the temperature of the HI 7032 buffer solution from the ChecktempC (e. g. 18°C). HI °C · Adjust the calibration trimmer (see page 7, #6) on the side of the instrument with the calibration screwdriver until the display shows the TDS reading at 25°C (see the TDS vs. @25°C "1382 mg/L". 703 PROCEDURE FOR HI 8734 0 TEMPERAT URE · Switch the instrument on by pressing ON/OFF. · Adjust the TEMPERATURE knob to display 18°C. ON OFF · 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), leave the TEMPERATURE knob to 18°C (if the temperature of the solution is 18°C). · The calibration is now complete and the instrument is ready for use. The instrument should be re-calibrated once a month, or when the probe or battery is changed. Note: For more accurate results, it is advisable to use a calibration solution close to the range to be measured. See the accessories section on page 23 for a wide selection of TDS solutions. · Pour sufficient quantity of a conductivity calibration solution (e. g. [. . . ] In such cases, the probe has to be replaced. BATTERY REPLACEMENT When the battery becomes weak the meters will display "V" or an additional blinking decimal point (HI 8733). V When the low battery indicator appears, the battery has only a few hours left. Battery replacement must only take place in a non-hazardous area using an alkaline 9V battery. Slide off the battery compartment cover at the rear of the meter and replace the 9V battery with a new one. Make sure the battery contacts are tight and secure before replacing the cover. HI 933000 9 VOLT BATTERY HI 8033 HI 8633 HI 8733 HI 8734 SLIDE OFF BATTERY SLIDE OFF 21 22 Untitled-19 23 24 SHOCKPROOF RUBBER BOOTS only) ( for H I 933000 only ) These rubber boots are specially made to prolong the life of your instrument and to prevent damage due to accidental bangs and falls. [. . . ]