User manual HANNA INSTRUMENTS HI 83207

[. . . ] Instruction Manual HI 83207 Multiparameter Bench Photometer for Industrial Wastewater 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] · Fill the cuvette with 10 mL of unreacted sample (up to the mark) and replace the cap. 10 mL · Place the cuvette into the holder and close the lid. Total Chlorine 22 · 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). · 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. 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. · Reinsert the cuvette into the instrument. 23 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 24 COLOR OF WATER SPECIFICATIONS Range Resolution Accuracy Typical EMC Deviation Light Source Method 0 to 500 PCU (Platinum Cobalt Units) 1 PCU ±10 PCU ±5% of reading at 25 °C ± 1 PCU Tungsten lamp with narrow band interference filter @ 420 nm Adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, Colorimetric Platinum Cobalt method. REQUIRED ACCESSORIES 0. 45 m membrane for true color measurement. For other accessories see page 65. MEASUREMENT PROCEDURE · Select the Color of Water method using the procedure described in the Method Selection section (see page 12). 10 mL · Fill one cuvette up to the mark with deionized water and replace the cap. This is the blank. #1 #1 · Place the blank (# 1) into the holder and close the lid. · Press the Zero key. The meter will show "-0. 0-" when the meter is zeroed and ready for measurement. · Remove the blank. 25 Color of Water · Fill the second cuvette up to the mark with unfiltered sample and replace the cap. · Filter 10 mL of sample through a filter with a 0. 45 m membrane into the third cuvette, up to the 10 mL mark and replace the cap. This is the true color. 10 mL #2 #3 · Insert the apparent color cuvette (# 2) into the instrument and close the lid. #2 · Press Read to start the reading. · The meter displays the value of apparent color in PCU. · Remove the cuvette, insert the true color cuvette (# 3) into the instrument and ensure that the notch on the cap is positioned securely into the groove. #3 · Press Read to start the reading. The meter displays the value of true color in PCU. Color of Water 26 COPPER HIGH RANGE SPECIFICATIONS Range Resolution Accuracy Typical EMC Deviation Light Source Method 0. 00 to 5. 00 mg/L 0. 01 mg/L ±0. 02 mg/L ±4% of reading at 25 °C ±0. 01 mg/L Tungsten lamp with narrow band interference filter @ 575 nm Adaptation of the EPA method. The reaction between copper and the bicinchoninate reagent causes a purple tint in the sample. [. . . ] · Insert the sample into the instrument. · Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait for 3 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 zinc. INTERFERENCES Interference may be caused by: Aluminum above 6 mg/L Cadmium above 0. 5 mg/L Copper above 5 mg/L Iron above 7 mg/L Manganese above 5 mg/L Nickel above 5 mg/L Zinc 62 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. Battery Low: The battery capacity is lower than 10%. Light Low: The instrument cannot adjust the light level. [. . . ]