à¤Ã×èͧÇÑ´¤ÅÍÃÕ¹ Colorimeter Chlorine Meter > HI711 à¤Ã×èͧÇÑ´¤ÅÍÃÕ¹ Total Chlorine Meter à¤Ã×èͧÇÑ´¤èÒ¤ÅÍÃÕ¹ HI711 à¤Ã×èͧÇÑ´¤ÅÍÃÕ¹ Total Chlorine Meter à¤Ã×èͧÇÑ´¤èÒ¤ÅÍÃÕ¹ ãªé§Ò¹§èÒ Êдǡ ÃÒ¤Ò»ÃÐËÂÑ´ ªèǧÇÑ´ 0.00 to 3.50 ppm(mg/L) ¤ÇÒÁÅÐàÍÕ´ ¡ÒÃÇÑ´¤ÅÍÃÕ¹ 0.01 ppm àËÁÒÐÊÓËÃѺ ÇÑ´¤ÅÍÃÕ¹ã¹ÊÃÐÇèÒ¹éÓ spa Ê»Ò ¹éÓ´×èÁ Easier to use and more accurate than chemical test kits EPA approved DPD method Accuracy ±0.03 ppm (mg/L) ±3% of reading 0.01 ppm (mg/L) resolution (250 points) Large, easy to read digits Auto shut-off. Dedicated to a single parameter Designed to work with HANNA’s powder reagents Uses 10 mL glass cuvettes. Small Size, Big Convenience Weighing a mere 65 g (2.3 oz.), the Checker®HC easily fits into the palm of your hand or pocket. Use for quick and accurate on the spot analysis. Single button operation: Zero and Measure Operated by a single AAA battery. Ideal for Swimming pools and spas, fruit and vegetable sanitation, disinfection, drinking water and quality control checks. ACCURATE AND AFFORDABLE CHLORINE MEASUREMENT Chlorine is the most common 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 HANNA HI 711 and HI 701 Checker®HC’s 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 resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 711 and HI 701 Checker®HC’s are accurate and affordable. These Checker®HC portable handheld colorimeters feature a resolution of 0.01 ppm (250 points) and 3% ±0.03 ppm (mg/L) accuracy of reading. They also use an EPA approved DPD method. The contoured style of these Checker®HC’s fit in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off. The HI 711 and HI 701 Checker®HC’s are extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent. Last, Place the vial into the Checker®HC, press the button and read the results. It’s that easy. Range 0.00 to 3.50 ppm (mg/L) Resolution 0.01 ppm (mg/L) Precision 3% of reading ±0.03 ppm (mg/L) @ 25°C Light Source LED @ 525 nm Light Detector Silicon photocell Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing Battery Type (1) 1.5V AAA Auto-off After 2 minutes of non-use and after read Dimensions 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”) Weight 64 g (2.25 oz.) Method EPA approved DPD method Standard Method 4500-Cl G. Chlorine Meter Free Chlorine Free-Total Chlorine Hanna HI711 Total Meter Water Quality Meter à¤Ã×èͧÇÑ´¤ÅÍÃÕ¹ à¤Ã×èͧÇÑ´¤Ø³ÀÒ¾¹éÓ