HI711 Ð HI761 Ð HI771 Total, Total Ultra Low Range, and Ultra High Range Chlorine Handheld Colorimeters • Easier to use and more accurate than chemical test kits • Dedicated to a single parameter • Small size, big convenience • Ideal for: · Swimming pools and spas · Fruit and vegetable sanitation/disinfection · Drinking water · Quality control checks · Environmental · Hospitality · Food processing Chlorine is the most commonly used water disinfectant. The monitoring of chlorine is crucial in applications such as swimming pools and spas, fruit and vegetable sanitation, disinfection, and drinking water. By monitoring this crucial parameter, serious health and safety risks can be avoided. The HI711, HI761, and HI771 Checker®HC Handheld Colorimeters bridge the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points of resolution, while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. Hanna’s Checker HC’s are an accurate and aordable alternative. The contoured style of these Checkers ¡t easily in the palm of your hand or pocket and the large LCD is easy to read. The auto shuto feature assures the battery life will not be drained if you forget to turn it o. These Checker HC's are designed to be portable and easy to use, providing quick, accurate results in four easy steps. Specifications HI711 (Total) HI761 (Total ULR) HI771 (UHR) Range 0.00 to 3.50 ppm (as Clº) 0 to 500 ppb (as Clº) 0 to 500 ppm (as Clº) Resolution 0.01 ppm 1 ppb 1 ppm Accuracy 0.03 ppm ±3% of reading @ 25 °C (77 °F) ±5 ppb ±5% of reading @ 25 °C (77 °F) ±3 ppm ±5% of reading @ 25 °C (77 °F) Light Source Light Emitting Diode @ 525 nm Light Detector Silicon photocell Method Adaptation of USEPA Method 330.5. The reaction between free chlorine and the DPD reagent causes a pink tint in the sample. Adaptation of the Standard Methods for the Examination of Water & Wastewater, 20th Edition, 4500-Cl Environment 0 to 50 °C (32 to 122 °F); max. 95% RH non-condensing Battery Type 1.5V AAA Alkaline Auto-off After 10 minutes of non-use and 2 minutes after reading After 10 minutes of non-use After 10 minutes of non-use Dimensions 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”) Weight 64 g (2.3 oz) Method Adaptation of USEPA Method 330.5. The reaction between free chlorine and the DPD reagent causes a pink tint in the sample. adaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, 4500-Cl. Ordering Information HI711 Checker®HC is supplied with sample cuvette and cap (2 pcs.), Total Chlorine reagent starter kit (reagents for 6 tests), 1.5V AAA alkaline battery (1 pc.), and instruction manual. HI761 Checker®HC is supplied with sample cuvette and cap (2 pcs.), Total Chlorine Ultra Low Range reagent starter kit (reagents for 6 tests), 1.5V AAA alkaline battery (1 pc.), and instruction manual. HI771 Checker®HC is supplied with sample cuvette and cap (2 pcs.), Chlorine Ultra High Range reagent starter kit (reagents for 6 tests, 1.5V AAA alkaline battery (1 pc.), and instruction manual. Reagent Set HI711-25 Reagents for 25 Total Chlorine tests HI761-25 Reagents for 25 Total Chlorine Ultra Low Range tests HI771-25 Reagents for 25 Chlorine Ultra High Range tests Calibration Set HI711-11 Total Chlorine certified standard kit HI761-11 Total Chlorine ULR certified standard kit HI771-11 Chlorine Ultra High Range certified standard kit See page10.166 for Checker HC accessories | www.hannainst.com 10 10.144 Photometers Checker®HC
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