User manual HANNA INSTRUMENTS HI 755

[. . . ] Make sure that the instrument is not damaged. If any damage occured during shipment, please notify your Dealer. Each HI 755 meter is supplied complete with: · Two Sample Cuvettes and Caps · Six powder reagents for Alkalinity · 1 x 1. 5V AAA Battery · Instruction Manual 1. [. . . ] The reaction causes a distinctive range of colors from yellow to green to greenish blue to develop. 0 to 50°C (32 to 122°F); max 95% RH non-condensing 1 x 1. 5V AAA After 10 minutes of non-use. 81. 5 x 61 x 37. 5 mm (3. 2 x 2. 4 x 1. 5") 64 g (2. 25 oz. ). Environment Battery Type Auto-Shut off Dimensions Weight w w w. c o m Dead battery: This indicates that the battery is dead and must be replaced. Once this indication is displayed, normal operation of the instrument will be interrupted. Change the battery and restart the meter. Measurement procedure: · Turn the meter on by pressing the button. After all the segments are displayed, "C. 1", "Add" appears with "Press" blinking, the meter is ready. Fill the cuvette with 10 mL of unreacted sample and replace the cap. Place the cuvette into the meter and close the meter's cap. When the display shows "Add", "C. 2" with "Press" blinking the meter is zeroed. Tips for an accurate measurement · It is important that the sample does not contain any debris. · Whenever the cuvette is placed into the measurement cell, it must be dry outside, and completely free of fingerprints, oil or dirt. Wipe it throughly with HI 731318 or a lint-free cloth prior to insertion. · Shaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette. · Do not let the reacted sample stand for too long after reagent is added, or accuracy will be lost. · After the reading it is important to discard the sample immediately , otherwise the glass might become permanently stained. Accessories: REAGENT SETS HI 755-25 OTHER ACCESSORIES HI 740028 HI 731318 HI 731321 HI 731225 HI 93703-50 Reagents for 25 Alkalinity tests 1. 5V AAA batteries (4 pcs) Tissue for wiping cuvettes (4 pcs) Glass cuvettes (4 pcs) Cuvette cap for checker HD (5 pcs) Cuvettes cleaning solution (230 mL). · Recommendations for Users Before using these products, make sure that they are entirely suitable for your specific application and for the environment in where they are used. Operation of these instruments may cause unacceptable interferences to other electronic equipments, thus requiring the operator to take all necessary steps to eliminate interferences. Any variation introduced by the user to the supplied equipment may degrade the instrument's EMC performance. [. . . ] Wait until the message "C. 2" appears with "Press" blinking, then invert gently again 3 times the cuvette, avoid bubble development inside. The instrument directly displays the concentration of alkalinity in ppm of CaCO 3. Alkalinity conversion: 1 ppm CaCO 3/L = 0. 02 meq/L = 0. 056 dkH The meter automatically turns off after 10 minutes. Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice. For additional information, contact your dealer or the nearest Hanna Customer Service Center. [. . . ]