User manual HANNA INSTRUMENTS HI 9033

[. . . ] 4 FUNCTIONAL DESCRIPTION & SPECIFICATIONS OF HI 9034 . . . . . . . . . . 5 FUNCTIONAL DESCRIPTION OF HI 76302W CONDUCTIVITY PROBE. . . . . 6 OPERATIONAL GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] · Connect the probe to the meter securely by aligning the pins with the socket, pushing the plug in and tightening the threaded ring. · Immerse the probe into the beaker, while paying attention that the holes on the PVC sleeve are completely submerged. · Turn the instrument on by pressing the ON/OFF key and select the appropriate range (e. g. 19. 99 mS/cm). Note: Probe body and sleeve are made of PVC, and are susceptible to damage due to temperatures exceeding 60°C (140°F). If the probe is exposed to high temperature, the bond between the rings and the probe body may become impaired and the probe will not function properly. In this case, the probe will need to be replaced. ON/OFF 19. 99mS/cm · Tap the probe repeatedly on the bottom of the beaker and stir it to ensure that no air bubbles remain trapped inside the sleeve. · If the probe temperature is close to the solution temperature, the display will stabilize quickly and show the temperature compensated conductivity measurement. However, the ATC circuitry needs a few minutes for temperature compensation if the temperature difference is about 5°C (9°F). 8 9 · When the reading is stable, adjust the calibration trimmer to read the solution conductivity value @25°C. For example if using HI 7030, turn the trimmer to read 12. 88 mS/cm @ 25°C. mS The calibration is now complete and the instrument is ready for use. All subsequent measurements will be compensated to 25°C (77°F). Note: Calibration can also be standardized to have readings compensated to 20°C (68°F), by simply adjusting the trimmer to the calibration solution value at 20°C (68°F). For example, for HI 7030 adjust the trimmer to read 11. 67 mS/cm (see "Conductivity vs. If the instrument cannot be calibrated, refer to the "Probe Maintenance" section. · Tap the probe repeatedly on the bottom of the beaker and stir it to ensure that no air bubbles remain trapped inside the sleeve. · If the probe temperature is close to the solution temperature, the display will stabilize quickly and show the temperature compensated conductivity measurement. However, the ATC circuitry needs a few minutes for temperature compensation if the temperature difference is about 5°C (9°F). · When the reading is stable, adjust the calibration trimmer to read the solution conductivity value @25°C. For example if using HI 7032, turn the trimmer until the display shows 1382 mg/L @25°C. The calibration is now complete and the instrument is ready for use. All subsequent measurements will be compensated to 25°C (77°F). Note: Calibration can also be standardized to have readings compensated to 20°C (68°F), by simply adjusting the trimmer to the calibration solution value at 20°C (68°F). For example, for HI 7032 adjust the trimmer to read 1251 mg/L (see "TDS vs. If the instrument cannot be calibrated, refer to the "Probe Maintenance" section. PROCEDURE FOR HI 9034 · Fill a beaker with 8 cm (3¼") of TDS calibration solution (if possible fill two beakers, one for rinsing the probe and one for calibration). · Connect the probe to the meter securely by aligning the pins with the socket, pushing the plug in and tightening the threaded ring. [. . . ] (03) 3258. 9565 · Fax (03) 3258. 9567 Korea: Tel. (02) 2278. 5147 · Fax (02) 2264. 1729 Malaysia: Tel. (603) 5638. 9940 · Fax (603) 5638. 9829 Singapore: Tel. 6296. 7118 · Fax 6291. 6906 South Africa: Tel. [. . . ]