HI723 – Chromium VI High-Range Checker® HC

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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.

Compact, Portable Design
Built-in Timer
One-Button Operation

Chromium, Hexavalent Range	0 to 999 ppb
Chromium, Hexavalent Resolution	1 ppb
Chromium, Hexavalent Accuracy	±5 ppb ±4% of reading
Chromium, Hexavalent Method	adaptation of the ASTM, Manual of Water and Environmental Technology, D 1687-92, Diphenylcarbohydrazide method.
Photometer/Colorimeter Light Source	LED @ 525 nm
Photometer/Colorimeter Light Detector	silicon photocell
Battery Type/Life	(1) 1.5V AAA
Automatic Shut-Off	after ten minutes of non-use
Environment	0 to 50°C (32 to 122°F); RH max 95% non-condensing
Weight	64 g (2.25 oz.)
Dimensions	81.5mm x 61mm x 37.5mm (3.2″ x 2.4″ x 1.5”)
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.