The HI 771 Checker®HC is a simple, accurate, and cost effective way to measure ultra-high ranges of chlorine. Designed as a more accurate alternative to chemical test kits, the HI 771 provides quick, accurate results in four easy steps.
The Hanna Total Chlorine Ultra High Range 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 Ultra High Range 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.
Details
The HI771 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure total chlorine. Chlorine is a popular disinfectant used in many industries including fruit and vegetable washing, medical instrument sterilization, and chlorine generating equipment.
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: Industrial, Food & Beverage, and Pool & Spa
Specifications
Range
0 to 500 ppm
Resolution
1 ppm
Accuracy @ 25°C/77°F
±0.03 ppm ±5% of reading
Light Source
LED @ 525 nm
Light Detector
silicon photocell
Method
adaptation of the Standard Methods for Water and Wastewater 4500-Cl.
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
HI771 Checker® is supplied with (2) sample cuvettes with caps, UHR chlorine reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide