User manual HANNA INSTRUMENTS HI 93732

[. . . ] 7 FUNCTIONAL DESCRIPTION & SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 OPERATIONAL GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 BATTERY REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 OTHER SPECTROPHOTOMETERS FROM HANNA . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] If under warranty, report the model number, date of purchase, serial number and the nature of the failure. If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization Number from the Customer Service department and then send it with shipment costs prepaid. When shipping any instrument, make sure it is properly packaged for complete protection. To validate your warranty, fill out and return the enclosed warranty card within 14 days from the date of purchase. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Hanna Instruments Inc. , Woonsocket, Rhode Island, 02895 , USA. Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice. 13 LIGHT DETECTOR CUVET MICROPROCESSOR BLOCK DIAGRAM OF A SPECTROPHOTOMETER A monochromatic LED (Light Emitting Diode) emits radiation at a single wavelength, supplying the system with the intensity Io. Since a substance absorbs the color complimentary to the one it emits (for example, a substance appears yellow because it absorbs blue light), Hanna spectrophotometers use LEDs that emit the appropriate wavelength to measure the sample. The optical distance (d) is measured by the diameter of the cuvet containing the sample. The photoelectric cell collects the radiation I that is not absorbed by the sample and converts it into an electric current, producing a potential in the mV range. 4 OTHER SPECTROPHOTOMETERS FROM HANNA Single-parameter Spectrophotometers Description Code Range Aluminum Ammonia LR Ammonia HR Bromine Chlorine, Free Chlorine, Total Chlorine Dioxide Chromium VI, LR Chromium VI, HR Color of Water Copper, LR Copper, HR Cyanide Cyanuric Acid Fluoride Hardness, Ca Hardness, Mg Hardness, Total Hydrazine Iodine Iron, LR Iron, HR Manganese, LR Manganese, HR Molybdenum Nickel LR Nickel HR Nitrate Nitrite, LR Nitrite, HR pH Phosphate, LR Phosphate, HR Phosphorus Silica Silver Zinc HI 93712 HI 93700 HI 93715 HI 93716 HI 93701 HI 93711 HI 93738 HI 93749 HI 93723 HI 93727 HI 93747 HI 93702 HI 93714 HI 93722 HI 93729 HI 93720 HI 93719 HI 93725 HI 93704 HI 93718 HI 93746 HI 93721 HI 93748 HI 93709 HI 93730 HI 93740 HI 93726 HI 93728 HI 93707 HI 93708 HI 93710 HI 93713 HI 93717 HI 93706 HI 93705 HI 93737 HI 93731 0. 00 to 1. 00 mg/L 0. 00 to 3. 00 mg/L 0. 00 to 9. 99 mg/L 0. 00 to 8. 00 mg/L 0. 00 to 2. 50 mg/L 0. 00 to 3. 50 mg/L 0. 00 to 2. 00 mg/L 0 to 300 µg/L 0 to 1000 µg/L 0 to 500 PCU 0 to 990 µg/L 0. 00 to 5. 00 mg/L 0. 000 to 0. 200 mg/L 0 to 80 mg/L 0. 00 to 2. 00 mg/L 0. 00 to 2. 70 mg/L 0. 00 to 2. 00 mg/L 0. 00 to 4. 70 mg/L 0 to 400 µg/L 0. 0 to 12. 5 mg/L 0 to 400 µg/L 0. 00 to 5. 00 mg/L 0 to 300 µg/L 0. 0 to 20. 0 mg/L 0. 0 to 40. 0 mg/L 0. 000 to 1. 000 mg/L 0. 00 to 7. 00 g/L 0. 0 to 30. 0 mg/L 0. 00 to 0. 35 mg/L 0 to 150 mg/L 5. 9 to 8. 5 pH 0. 00 to 2. 50 mg/L 0. 0 to 30. 0 mg/L 0. 0 to 15. 0 mg/L 0. 00 to 2. 00 mg/L 0. 000 to 0. 600 mg/L 0. 00 to 3. 00 mg/L Method Aluminon Nessler Nessler DPD DPD DPD Chlorophenol Red Diphenylcarbohydrazide Diphenylcarbohydrazide Colorimetric Platinum Cobalt Bicinchoninate Bicinchoninate Pyridine-Pyrazalone Turbidimetric SPADNS Calmagite Colorimetric Calmagite/colorimetric p-Dimethylaminobenzaldehyde DPD TPTZ Phenantroline PAN Periodate Oxidation Mercaptoacetic Acid Photometric Photometric Cadmium Reduction Diazotation Ferrous Sulfate Phenol Red Ascorbic Acid Amino Acid Amino Acid Heteropoly Blue Cadion 2B Zincon The microprocessor uses this potential to convert the incoming value into the desired measurement unit and to display it on the LCD. The measurement process is done in two phases: setting the meter to zero and the actual measurement. The cuvet has a very important role because it is an optical element, and thus requires particular attention. It is important that both the measurement and the calibration (zeroing) cuvets are optically identical to provide the same measurement conditions. Whenever possible use the same cuvet for both. It is also necessary that the cuvet's surface is clean and not scratched, in order to avoid measurement interference due to unwanted reflection and absorption of light. It is recommended not to touch the cuvet walls with hands. Furthermore, in order to maintain the same conditions during the zeroing and the measuring phases, it is necessary to close the cuvet to prevent any contamination. Multi-parameter Spectrophotometers Code Parameters HI 93710 HI 93724 HI 93725 HI 93741 HI 93742 HI 93743 HI 93744 HI 93745 C 101 C 104 Free & Total Cl, pH CYS, pH Total Hardness, pH Fe LR, Total Hardness Fe LR, Mn LR Fe LR, pH Fe LR, Total Hardness, pH Free & Total Cl, Fe LR, Total Hardness, pH Br, Free & Total Cl, CYS, Fe LR, I, pH Free & Total Cl, CYS, pH 12 5 DISPLAY CODE GUIDE This indicates that the meter is in a ready state and zeroing can be performed. This prompt appears each time the meter is performing a measurement. This indicates that the meter has been zeroed and measurement can be performed. Insert a sample before adding reagent and press ZERO. A blinking "0. 00" indicates that the sample has absorbed less light than the zero reference. Check the procedure and make sure you use the same cuvet for reference (zero) and measurement. [. . . ] Slide off the battery compartment cover on the back of the meter and install the battery while paying attention to its polarity. 9V SLIDE OFF REQUIRED REAGENTS Code HI 93732A-0 HI 93732B-0 HI 93732C-0 Description Reagent A Reagent B Reagent C Quantity 5 drops 5 drops 10 drops ON OFF MEASUREMENT PROCEDURE · Turn the meter on by pressing ON/OFF. · When the LCD displays "- - -", it is ready. · Fill one 60 mL BOD bottle completely with the unreacted sample. · Replace the cap and ensure that a small part of the sample spills over. This is to make sure that no air bubbles have been trapped inside. [. . . ]