User manual HANNA INSTRUMENTS HI 93741

[. . . ] HANNA LITERATURE Hanna publishes a wide range of catalogs and handbooks for an equally wide range of applications. The reference literature currently covers areas such as: Instruction Manual MULTIPARAMETER ION SPECIFIC METERS · · · · · · · Water Treatment Process Swimming Pools Agriculture Food Laboratory Thermometry and many others. For these and other catalogs, handbooks and leaflets contact your dealer or the Hanna Customer Service Center nearest to you. To find the Hanna Office in your vicinity, check our home page at www. hannainst. com. MANISMMPR4 09/03 www. hannainst. com Manufacturers since 1978 These Instruments are in Compliance with the CE Directives Dear Customer, Thank you for choosing a Hanna product. [. . . ] Note: Note For better accuracy wash glassware with HCl 6N. INTERFERENCES Interference may be caused by: Cadmium above 4. 0 mg/L Chromium3+ above 0. 25 mg/L Chromium6+ above 1. 2 mg/L Cobalt above 0. 05 mg/L Copper above 0. 6 mg/L Cyanide above 2. 8 mg/L Manganese above 50. 0 mg/L Mercury above 0. 4 mg/L Molybdenum above 4. 0 mg/L Nickel above 1. 0 mg/L Nitrite ion above 0. 8 mg/L Sample pH should be between 3 and 4 to avoid developed color to fade or turbidity. pH pH MEASUREMENTS In order to perform pH measurements, follow the procedure on page 46. CHLORINE MEASUREMENTS · Press the pH/CL range key to select the chlorine scale. · Follow the procedures on page 34 and 36. Note: Free and total chlorine have to be measured separately following the indicated procedure with fresh unreacted samples if both values are requested. HI 93710 pH/Chlorine 8 45 Iron LR IRON LOW RANGE MEASUREMENT · Fill one graduated mixing cylinder up to the 25 mL mark with deionized water. · Add the content of one packet of HI 93746 TPTZ reagent, close the cylinder and agitate for 30 seconds. This is the blank. 12 9 HI 93724 - Cyanuric Acid & pH The HI 93724 meter measures cyanuric acid and pH content in water and wastewater in the following ranges: 0 to 80 mg/L for Cyanuric Acid (CYS) and 5. 9 to 8. 5 for pH. 30" 3 6 · Fill a cuvet with 10 mL of the blank up to the mark and let it sit for 3 minutes. 10 mL · Replace the cap, insert the blank into the holder and make sure that the notch on the cap is positioned securely into the groove. · Press ZERO and "SIP" will appear on the display. ZERO SPECIFICATIONS Range Resolution Accuracy CYS pH CYS pH CYS pH CYS pH 0 to 80 mg/L 5. 9 to 8. 5 1 mg/L 0. 1 ±1 mg/L ±15% of reading ±0. 1 ±1 mg/L ±0. 1 Light Emitting Diode @ 555 nm For pH, Phenol Red method. The reaction between cyanuric acid and the reagent causes a white suspension in the sample. Unit pH CYS Description Phenol red Powder Reagent Quantity 5 drops 1 packet · Wait for a few seconds and the display will show "-0. 0-". · Fill one graduated mixing cylinder up to the 25 mL mark with the sample. · Add the content of one packet of HI 93746 TPTZ reagent, close the cylinder and agitate for 30 seconds. 30" 3 6 Typical EMC Deviation Light Source Method REQUIRED REAGENTS Code HI 93710-0 HI 93722-0 12 9 Iron LR 44 9 HI 93724 Cyanuric A. & pH REAGENT SETS HI 93710-01 Reagents for 100 pH tests HI 93710-03 Reagents for 300 pH tests HI 93722-01 Reagents for 100 CYS tests HI 93722-03 Reagents for 300 CYS tests For other accessories see page 48. INTERFERENCES Interference may be caused by: Bromine Chlorine Ozone Oxidized forms of chromium and manganese Alkalinity above 300 mg/L and acidity above 150 mg/L as CaCO3 require neutralization since the color could instantly fade. In case of water with hardness greater than 500 mg/L CaCO3, shake the sample for approximately 1 minute after adding the reagent. MEASUREMENT PROCEDURE · Turn the meter on by pressing ON/OFF. · When the LCD displays "- - -", it is ready. ON OFF pH pH MEASUREMENTS In order to perform pH measurements, follow the procedure on page 46. CYANURIC ACID MEASUREMENTS · Press the pH/CYS key to select the cyanuric acid scale. "pH" will disappear from the LCD. · Follow the procedure on page 38. HI 93724 Cyanuric A. & pH 10 43 Iodine IODINE MEASUREMENT · Fill the cuvet up to the mark with 10 mL of unreacted sample and replace the cap. · Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove. · Press ZERO and "SIP" will appear on the display. ZERO HI 93725 - pH & Total Hardness 10 mL The HI 93725 meter measures pH and Magnesium/Calcium and Total Hardness content in water and wastewater. · Wait for a few seconds and the display will show "-0. 0-". · Remove the cap and add the content of one packet of HI 93718 reagent. · Reinsert the cuvet into the instrument. SPECIFICATIONS Range pH Mg Hardness Ca Hardness Total Hardness Resolution pH Hardness Accuracy pH Hardness Typical EMC pH Deviation Hardness Light Source Method 5. 9 to 8. 5 0. 00 to 2. 00 mg/L 0. 00 to 2. 70 mg/L 0. 00 to 4. 70 mg/L 0. 1 0. 01 mg/L ±0. 1 ±0. 11 mg/L ±5% of reading) ±0. 1 ±0. 02 mg/L Light Emitting Diode @ 555 nm For pH, Phenol red method. For total hardness, adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, Calmagite/colorimetric method. The reaction between hardness and reagents causes a maroon tint in the sample. · Wait for 2 minutes and 30 seconds and press READ. "SIP" will appear during measurement. · The instrument directly displays concentration in mg/L of iodine on the Liquid Crystal Display. Iodine 42 11 HI 93725 pH & Total Hardness REQUIRED REAGENTS Code HI 93710-0 HI 93719A-0 HI 93719B-0 HI 93719C-0 HI 93719D-0 Description pH Phenol red Ca & Mg indicator Alkali solution EDTA solution EGTA solution Quantity 5 drops 0. 5 mL 0. 5 mL 1 drop 1 drop · Pressing READ will result in the meter scrolling through the hardness concentration in mg/L (ppm) by first displaying the Magnesium (n), then the Calcium (C) and then the Total (t). · By pressing ZERO the meter will be reset and be ready for another test of Hardness. ZERO REAGENT SETS HI 93710-01 Reagents for 100 pH tests HI 93710-03 Reagents for 300 pH tests HI 93719-01 Reagents for 100 hardness tests HI 93719-03 Reagents for 300 hardness tests For other accessories see page 48. SAMPLE DILUTION This meter is designed to determine low levels of hardness, typically found in water purification systems. [. . . ] · Press ZERO and "SIP" will appear on the display. ZERO · Wait for a few seconds and the display will show "-0. 0-". · Remove the cuvet and add the content of one packet of HI 93716 reagent. Replace the cap and shake gently. SPECIFICATIONS pH Fe Mg Hardness Ca Hardness Total Hardness Resolution pH Fe Hardness Accuracy pH Fe Hardness Typical EMC pH Deviation Fe Hardness Light Source Method Range · Reinsert the cuvet into the instrument. "SIP" will appear during measurement. · The instrument directly displays concentration in mg/L of bromine on the Liquid Crystal Display. 5. 9 to 8. 5 0 to 400 µg/L 0. 00 to 2. 00 mg/L 0. 00 to 2. 70 mg/L 0. 00 to 4. 70 mg/L 0. 1 1 µg/L 0. 01 mg/L ±0. 1 ±10 µg/L ±8% of reading ±0. 11 mg/L ±5% of reading ±0. 2 ±1 µg/L ±0. 02 mg/L Light Emitting Diode @ 555 nm For pH, Phenol red method. [. . . ]