User manual HANNA INSTRUMENTS HI 83209

[. . . ] Instruction Manual HI 83209 Multiparameter Bench Photometer for Education 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] To resolve this, neutralize the sample with diluted HCl or NaOH. 23 Free Chlorine TOTAL CHLORINE SPECIFICATIONS Range Resolution Accuracy Typical EMC Deviation Light Source Method 0. 00 to 3. 50 mg/L 0. 01 mg/L ±0. 03 mg/L ±3% of reading at 25 °C ±0. 01 mg/L Tungsten lamp with narrow band interference filter @ 525 nm Adaptation of the EPA DPD method 330. 5. The reaction between the chlorine and the DPD reagent causes a pink tint in the sample. POWDER: Code HI 93711-0 LIQUID: Code HI 93701A-T HI 93701B-T HI 93701C REQUIRED REAGENTS Description DPD Description DPD1 indicator DPD1 buffer DPD3 solution Quantity 1 packet Quantity 3 drops 3 drops 1 drop REAGENT SETS HI 93701-T Reagents for 300 total chlorine tests (liquid) HI 93711-01 Reagents for 100 total chlorine tests (powder) HI 93711-03 Reagents for 300 total chlorine tests (powder) For other accessories see page 65. MEASUREMENT PROCEDURE · Select the Total Chlorine method using the procedure described in the Method Selection section (see page 12). · Fill the cuvette with 10 mL of unreacted sample (up to the mark) and replace the cap. · Place the cuvette into the holder and close the lid. 10 mL Total Chlorine 24 · Press the Zero key. The meter will show "-0. 0-" when the meter is zeroed and ready for measurement. · Remove the cuvette. Powder reagents procedure · Add 1 packet of HI 93711 DPD reagent. Replace the cap and shake gently for 20 seconds (or 2 minutes for seawater analysis). · Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait for 2 minutes and 30 seconds and press Read. The instrument displays the results in mg/L of total chlorine. Liquid reagents procedure · To an empty cuvette add 3 drops of HI 93701A-T DPD1 indicator, 3 drops of HI 93701B-T DPD1 buffer and 1 drop of HI 93701C DPD3 solution. Replace the cap and shake gently again. · Reinsert the cuvette into the instrument. 25 Total Chlorine · Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait for 2 minutes and 30 seconds and press Read. When the timer ends the meter will perform the reading. · The instrument displays the results in mg/L of total chlorine. Note: free and total chlorine have to be measured separately with fresh unreacted samples following the related procedure if both values are requested. INTERFERENCES Interference may be caused by: Bromine, Iodine, Ozone, Oxidized forms of Chromium and Manganese. In case of water with hardness greater than 500 mg/L CaCO3, shake the sample for approximately 2 minutes after adding the powder reagent. In case of water with alkalinity greater than 250 mg/L CaCO3 or acidity greater than 150 mg/L CaCO3, the color of the sample may develop only partially, or may rapidly fade. To resolve this, neutralize the sample with diluted HCl or NaOH. Total Chlorine 26 CHROMIUM VI HIGH RANGE SPECIFICATIONS Range Resolution Accuracy Typical EMC Deviation Light Source Method 0 to 1000 g/L 1 g/L ±5 g/L ±4% of reading at 25 °C ±1 g/L Tungsten lamp with narrow band interference filter @ 525 nm Adaptation of the ASTM Manual of Water and Environmental Technology, D1687-92, Diphenylcarbohydrazide method. The reaction between chromium VI and the reagent causes a purple tint in the sample. Description Powder reagent Quantity 1 packet REQUIRED REAGENTS Code HI 93723-0 REAGENT SETS HI 93723-01 Reagents for 100 tests HI 93723-03 Reagents for 300 tests For other accessories see page 65. MEASUREMENT PROCEDURE · Select the Chromium VI HR method using the procedure described in the Method Selection section (see page 12). · Fill the cuvette up to the mark with 10 mL of unreacted sample and replace the cap. · Place the cuvette into the holder and close the lid. 10 mL · Press the Zero key. The meter will show "-0. 0-" when the meter is zeroed and ready for measurement. · Remove the cuvette and add the content of one packet of HI 93723-0 reagent. Replace the cap and shake vigorously for about 10 seconds. 27 Chromium VI HR · Reinsert the cuvette into the instrument. · Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait for 6 minutes and press Read. The instrument displays concentration in g/L of chromium VI. · Press or to access the second level functions. · Press the Chem Frm key to convert the result in g/L of Chromate (CrO42¯) and Dichromate (Cr2O72¯). · Press or to return to the measurement screen. INTERFERENCES Interference may be caused by: Vanadium above 1 ppm. [. . . ] Description Zinc Reagent Cyclohexanone Quantity 1 packet 0. 5 mL REQUIRED REAGENT Code HI 93731A-0 HI 93731B-0 REAGENT SETS HI 93731-01 Reagents for 100 tests HI 93731-03 Reagents for 300 tests For other accessories see page 65. MEASUREMENT PROCEDURE · Select the Zinc method using the procedure described in the Method Selection section (see page 12). · Fill one graduated mixing cylinder up to the 20 mL mark with the sample. 20 mL · Add the content of one packet of HI 93731A-0 Zinc reagent, close the cylinder and invert several times to mix until completely dissolved. · Fill one cuvette with 10 mL of the reacted sample up to the mark. 10 mL 59 Zinc · Place the cap and insert the cuvette into the instrument and close the lid. · Press the Zero key. The display will show "-0. 0-" when the meter is zeroed and ready for measurement. · Remove the cuvette and add 0. 5 mL of HI 93731B-0 Cyclohexanone to the cuvette. Note: To prevent any contamination from the polycarbonate cap, prior to replacing it, close the sample cuvette with the supplied HDPE plastic stopper. [. . . ]