User manual HANNA INSTRUMENTS HI 83216

[. . . ] Instruction Manual HI 83216 Multiparameter Bench Photometer for Pool & Spa Applications www. hannainst. com 1 Dear Customer, Thank you for choosing a Hanna product. Please read this instruction manual carefully before using the instrument. This manual will provide you with the necessary information for the correct use of the instrument. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst. com. TABLE OF CONTENTS PRELIMINARY EXAMINATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] · Whenever the cuvette is placed into the measurement cell, it must be dry outside, and free of fingerprints, oil or dirt. Wipe it thoroughly with HI 731318 or a lint-free cloth prior to insertion. · Shaking the cuvette can generate bubbles in the sample, 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 too long after reagent is added. For best accuracy, respect the timings described in each specific method. · It is possible to take multiple readings in a row, but it is recommended to take a new zero reading for each sample and to use the same cuvette for zeroing and measurement when possible (for most precise results follow the measurement procedures carefully). · Discard the sample immediately after the reading is taken, or the glass might become permanently stained. · All the reaction times reported in this manual are at 25 °C (77 °F). In general, the reaction time should be increased for temperatures lower than 20 °C (68 °F), and decreased for temperatures higher than 25 °C (77 °F). INTERFERENCES · In the method measurement section the most common interferences that may be present in an average wastewater matrix have been reported. It may be that for a particular treatment process other compounds do interfere with the method of analysis. HEALTH & SAFETY · The chemicals contained in the reagent kits may be hazardous if improperly handled. · Read the Material Safety Data Sheet (MSDS) before performing tests. · Safety equipment: Wear suitable eye protection and clothing when required, and follow instructions carefully. · Reagent spills: If a reagent spill occurs, wipe up immediately and rinse with plenty of water. If reagent contacts skin, rinse the affected area thoroughly with water. · Waste disposal: for proper disposal of reagent kits and reacted samples, refer to the Material Safety Data Sheet (MSDS). METHOD REFERENCE TABLE Method 1 2 3 Method description Alkalinity Calcium Hardness Free Chlorine Page 20 22 25 14 Method 4 5 6 Method description Total Chlorine Cyanuric Acid pH Page 27 29 31 OPERATIONAL GUIDE POWER CONNECTION AND BATTERY MANAGEMENT The meter can be powered from an AC/DC adapter (included) or from the built-in rechargeable battery. Note: Always turn the meter off before unplugging it to ensure no data is lost. When the meter switches ON, it verifies if the power supply adapter is connected. The battery icon on the LCD will indicate the battery status: - battery is charging from external adapter - battery fully charged (meter connected to AC/DC adapter) - battery capacity (no external adapter) - battery Low (no external adapter) - battery Dead (no external adapter) METHOD SELECTION · Turn the instrument ON via the ON/OFF power switch. · The meter will perform an autodiagnostic test. During this test, the Hanna Instrument logo will appear on the LCD. After 5 seconds, if the test was successful, the last method used will appear on the display. [. . . ] The display will show "-0. 0-" when the meter is zeroed and ready for measurement. 31 pH · Remove the cuvette and add 5 drops of HI 93710-0 Phenol Red Indicator. Replace the cap and mix the solution. · Reinsert the cuvette into the instrument. · Press the Read key to start the reading. The instrument displays the pH value. ERRORS AND WARNINGS The instrument shows clear warning messages when erroneous conditions appear and when measured values are outside the expected range. No Light: The light source is not functioning properly. Light Leak: There is an excess amount of ambient light reaching the detector. Inverted cuvettes: The sample and the zero cuvettes are inverted. 32 Battery Low: The battery capacity is lower than 10%. Light Low: The instrument cannot adjust the light level. [. . . ]