Specifications HI718 Range 0.0 to 12.5 ppm (as Iº) Resolution 0.1 ppm Accuracy ±0.1 ppm ±5% of reading @ 25 °C (77 °F) Light Source Light Emitting Diode @ 525 nm Light Detector Silicon photocell Method Adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th Edition, Periodate Method. The reaction between iodine and the reagent causes a pink tint in the sample. 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 Dimensions 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”) Weight 64 g (2.3 oz) Ordering Information HI718 Checker®HC is supplied with sample cuvette and cap (2 pcs.), Iodine reagent starter kit (reagents for 6 tests), 1.5V AAA Alkaline battery (1 pc.), and instruction manual. Reagent Set HI718-25 Reagents for 25 Iodine tests Calibration Set HI718-11 Iodine certified standard kit HI718 Iodine Handheld Colorimeter • Easier to use and more accurate than chemical test kits · DPD method · ±0.1 ppm ±5% of reading accuracy · Large, easy-to-read digits · Auto shut-off • Dedicated to a single parameter · Designed to work with Hanna’s powder reagents • Small size, big convenience · Weighing a mere 64 g (2.25 oz.), the Checker®HC easily fits into the palm of your hand or pocket · Quick and accurate on-the-spot analysis · Single-button operation: zero and measure • Ideal for: · Swimming pools and spas · Industrial processes and disinfection Iodine is sometimes used as a disinfectant for swimming pools, spas and potable water. It has also found use as a disinfectant in the poultry industry. The rapid determination of iodine is required for adequate control of this bactericide. The Hanna Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 of points resolution, while professional instrumentation can cost hundreds of dollars and can be time-consuming to calibrate and maintain. The HI718 Checker HC is both accurate and aordable. The HI718 Checker HC portable handheld colorimeter features a resolution of 0.1 ppm and accuracy of ±0.1 ppm ±5% of reading. This Checker HC uses a modi¡cation of the DPD method used for residual chlorine. The contoured style of this Checker HC ¡ts in your palm or pocket perfectly and the large LCD is easy to read. The auto shut-o feature assures the battery life will not be drained if you forget to turn it o. See page10.166 for Checker HC accessories www.hannainst.com | 10 10.153 Photometers Checker®HC
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