HI749 - Chromium 6 Low Range Checker/Tester
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.
Compact, Portable Design
Built-in Timer
One-Button Operation
Details
The HI749 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure chromium VI. Due to its corrosion-resistant properties, hexavalent chromium plays an important part in the plating industry and cooling towers. However, due to its toxic and carcinogenic nature, chromium 6 must be must be sufficiently treated prior to wastewater discharge. Designed as a more accurate alternative to chemical test kits, the HI749 provides quick, accurate results in four easy steps:

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, Environmental, Plating, Education
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 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 |
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. |