Checker đo Crom VI thang thấp HI749 (0 đến 300 ppb)

Chromium VI Low Range Checker/Tester - HI749

The Hanna Chromium 6 Low Range Checker (HI749) tests for the presence of Chromium 6 (Hexavalent Chromium) in concentrations within the range of 0 to 300 ppb with an accuracy of ±3 ppb in samples such as drinking water and wastewater. With a digital readout, Hanna Checkers provide greater measurement accuracy when compared with chemical test kits that rely on human perception of color.

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, Industrial, Municipal Water

Chromium, Hexavalent Range	0 to 300 ppb
Chromium, Hexavalent Resolution	1 ppb
Chromium, Hexavalent Accuracy	±3 ppb ±5% 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	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.