User manual HANNA INSTRUMENTS HI 993302

[. . . ] If you need additional technical information, do not hesitate to e-mail us at tech@hannainst. com. These instruments are in compliance with the directives. FUNCTIONAL DESCRIPTION Range SPECIFICATIONS 0. 0 to 60°C / 32. 0 to 140°F 0 to 3999 µS/cm / 0 to 2000 ppm (HI 993301) 0. 00 to 20. 00 mS/cm / 0. 00 to 10. 00 ppt (HI 993302) Resolution 0. 1°C / 0. 1°F 1 µS/cm / 1 ppm (HI 993301) 0. 01 mS/cm / 0. 01 ppt (HI 993302) Accuracy (@20ºC/68ºF) ±0. 5°C / ±1°F / ±2% FS for EC/TDS Typical EMC Deviation ±1°C / ±2°F / ±2. 5% FS for EC/TDS Calibration Automatic, 1 point Probe HI 7630 (fixed) Temperature Compensation Automatic, with adjustable from 0. 0 to 2. 4%/ºC TDS Factor Adjustable from 0. 45 to 1. 00 (CONV) Power Supply 12 Vdc power adapter (included) Environment 0 to 50ºC (32 to 122ºF); RH max 95% non-condensing Dimensions 160 x 105 x 31 mm (6. 2 x 4. 1 x 1. 2'') Weight 190 g (6. 7 oz. ) - meter only PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully. If any damage has occurred during shipment, notify your dealer or the nearest Hanna Service Center. The meters are supplied with: · HI 7630 conductivity probe · calibration solution sachet, 20 mL: HI 70031 (1413 µS/cm) for HI 993301 HI 70030 (12. 88 mS/cm) for HI 993302 · 12 Vdc power adapter and instructions Note: Conserve all packing material until the instrument has been observed to function correctly. [. . . ] Choose the indicator according to the proper EC/TDS ranges for your application: · HI 993301 measures EC from 0 to 3999 µS/cm and TDS from 0 to 2000 ppm · HI 993302 measures EC from 0. 00 to 20. 00 mS/cm and TDS from 0. 00 to 10. 00 ppt Liquid Crystal Display ON/OFF/MODE button Power supply connector 12 Vdc power adapter HI 7630 conductivity probe with built-in temperature sensor and pipe thread 1/2'' NPT 6. 5. 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 areas could cause unacceptable interferences to radio and TV equipment. Any variation introduced by the user to the supplied equipment may degrade the instrument's EMC performance. To avoid electrical shock, do not use this instrument when voltages at the measurement surface exceed 24 Vac or 60 Vdc. To avoid damages 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. IST993301R1 07/05 OPERATIONAL GUIDE Preliminary operations Connect the 12 Vdc adapter to the meter and to the mains; the display will lit. Press and hold the MODE button for 2-3 seconds. All the used segments on the LCD will be visible for a few seconds. To change the temperature unit To change the temperature unit (from °C to °F), from measurement mode, press and hold the MODE button until "TEMP" and the current temperature unit are displayed on the lower LCD (E. g. Use the SET/HOLD button to change the temperature unit, and then press MODE button twice to return to normal measurement mode. To freeze the display Press and hold the SET/HOLD button for 2-3 seconds until "HOLD" appears on the secondary display. Press either button to return to normal mode. Taking measurements Select either EC or TDS mode with the SET/HOLD button. Immerse the probe in the solution to be tested. For better accuracy, the probe should not touch or stand close to the walls or bottom of the sample vessel. The EC or TDS value automatically compensated for temperature variations, is shown on the primary LCD, while the secondary LCD shows the temperature of the sample. Measurements should be taken when the stability symbol on the top left of the LCD disappears. To change the TDS factor (CONV) and the temperature compensation coefficient (BETA) · From measurement mode, press and hold the MODE button until "TEMP" and the current temperature unit are displayed on the lower LCD (E. g. · Press the MODE button again to show the current conversion factor (E. g. · Use the SET/HOLD button to change the conversion factor. [. . . ] · If measurements are taken in different samples successively, rinse the probe thoroughly with water and then with some of the sample to be measured. CALIBRATION PROCEDURE · From measurement mode, press and hold the MODE button until CAL is displayed on the lower LCD. · Release the button and immerse the probe in the proper calibration solution: HI 70031 (1413 µS/cm) for HI 993301 and HI 70030 (12. 88 mS/cm) for HI 993302. · Once the calibration has been automatically performed, the LCD will display OK for 1 second and the meter will return to normal measurement mode. · Since there is a known relationship between EC and TDS readings, it is not necessary to calibrate the meter in TDS Note: for storing calibration data in the non-volatile memory, turn the meter OFF and then ON again through the MODE button. [. . . ]