The Hanna Chromium VI 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 absorbance and ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Chromium VI 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.
adaptaion of the ATSM, Manual of Water and Enviornmental Technology, D 1687-92, Diphenylcarbohydrazide method
Environment
0 to 500C (32 to 1220F); 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
HI723 Checker® is supplied with (2) sample cuvettes with caps, chromium VI HR reagent starter kit for 6 tests (6 powder reagent packets) , battery, instructions and quick start guide.