Kolorimetras chromo kiekiui nustatyti HI749 Chromium VI Low Range Checker® HC

The Hanna Chromium VI Low Range (0 to 300 ppb) 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 Low 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.


Specifications












































Range 0 to 300 ppb
Resolution 1 ppb
Accuracy @ 25°C/77°F ±3 ppb ±5% of reading
Light Source LED @ 525 nm
Light Detector silicon photocell
Method adaptaion of the ATSM, Manual of Water and Enviornmental Technology, D 1687-92, Diphenylcarbohydrazide 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 HI749 Checker® is supplied with (2) sample cuvettes with caps, chromium VI LR reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.
Warranty 6 month limited warranty
48,95 € € / 59.23 €