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CheckerHC - Model HI 711 -Handheld Colorimeter
The HI711 Checker HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure total chlorine. Chlorine is a popular disinfectant used in municipal water, fruits and vegetables, as well as equipment in the food and beverage industry. Though beneficial in destroying pathogens, levels greater than 4 parts per million (ppm) is harmful to humans and therefore, must be monitored. Designed as a more accurate alternative to chemical test kits, the HI711 provides quick, accurate results in four easy steps:
The Hanna Total Chlorine Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Total Chlorine Checker® uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water Quality, Education, Pool and Spa
- Range 0.00 to 3.50 ppm (mg/L)
- Resolution 0.01 ppm (mg/L)
- Accuracy @ 25°C/77°F ±0.03 ppm ±3% of reading
- Light Source LED @ 525 nm
- Light Detector silicon photocell
- Method adaptation of USEPA method 330.5, DPD method
- Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing
- Battery Type (1) 1.5V AAA
- Auto-off after ten minutes of non-use
- Dimensions 81.5mm x 61mm x 37.5mm (3.2" x 2.4" x 1.5”)
- Weight 64 g (2.25 oz.)
- Ordering Information HI711 Checker® is supplied with (2) sample cuvettes with caps, total chlorine reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.
- Warranty 6 month limited warranty