User manual HANNA INSTRUMENTS HI 83205

[. . . ] Instruction Manual HI 83205 Multiparameter Bench Photometer for Boilers and Cooling Towers www. hannainst. com This Instrument is in Compliance with the CE Directives 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. [. . . ] · Reinsert the cuvette into the instrument. · 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. 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 73. MEASUREMENT PROCEDURE · Select the Total Chlorine method using the procedure described in the Method Selection section (see page 12). 10 mL · 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. 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. Swirl gently to mix and immediately add 10 mL of unreacted sample. Replace the cap and shake gently again. x3 x3 x1 · Reinsert the cuvette into the instrument. Total Chlorine 28 29 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. CHLORINE DIOXIDE SPECIFICATIONS Range Resolution Accuracy Typical EMC Deviation Light Source Method 0. 00 to 2. 00 mg/L 0. 01 mg/L ±0. 10 mg/L ±5% of reading ±0. 01 mg/L Tungsten lamp with narrow band interference filter @ 575 nm Adaptation of the Chlorophenol Red method. The reaction between chlorine dioxide and reagents causes a colorless to purple tint in the sample. Description Reagent A Dechlorinating Reagent B Reagent C Reagent D Quantity 1 mL 1 packet 1 mL 1 mL · The instrument displays the results in mg/L of total chlorine. REQUIRED REAGENT Note: free and total chlorine have to be measured separately with fresh unreacted samples following the related procedure if both values are requested. Code HI 93738A-0 HI 93738B-0 HI 93738C-0 HI 93738D-0 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. REAGENT SETS HI 93738-01 Reagents for 100 tests HI 93738-03 Reagents for 300 tests For other accessories see page 73. MEASUREMENT PROCEDURE · Select the Chlorine Dioxide method using the procedure described in the Method Selection section (see page 12). · Fill two graduated mixing cylinders (#1 & #2) up to the 25 mL mark with the sample. · Add 0. 5 mL of HI 93738A-0 Chlorine Dioxide Reagent to each cylinder (#1 & #2), close them and invert several times to mix. #1 25 ml #2 25 ml #1 & #2 #1 #2 Total Chlorine 30 31 Chlorine Dioxide · Add the content of one packet of HI 93738B-0 Dechlorinating Reagent to one of the two cylinders (#1), close and invert it several times until it is totally dissolved. This is the blank. · Press ZERO key. The meter will show "-0. 0-" when the meter is zeroed and ready for measurement. #1 · Add precisely 0. 5 mL of HI 93738C-0 Chlorine Dioxide Reagent to each cylinder (#1 & #2), close them and invert several times to mix. · Fill another cuvette with 10 mL of the reacted sample (#2) up to the mark and replace the cap. #2 10 mL #1 & #2 · Insert the sample into the instrument. #2 #1 #2 · Press READ and the meter will perform the reading. The instrument displays the results in mg/L of chlorine dioxide. · Add 0. 5 mL of HI 93738D-0 Chlorine Dioxide Reagent to each cylinder (#1 & #2), close them and invert several times to mix. Cylinder #2 is the reacted sample. #1 & #2 SAMPLING PROCEDURE #1 #2 It is recommended to analyze chlorine dioxide samples immediately after collection. Chlorine dioxide samples must be stored in sealed dark glass bottle, with minimal head space. [. . . ] 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. Recommendations for Users Before using these products, make sure that they are entirely suitable for your specific application and for the environment in which they are used. Operation of these instruments may cause unacceptable interferences to other electronic equipments, this requiring the operator to take all necessary steps to correct interferences. Any variation introduced by the user to the supplied equipment may degrade the instruments' EMC performance. [. . . ]