The Hanna Silica 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 ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Silica 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.
The HI770 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure silica. Silica is found in all natural surface and saline waters in the dissolved form. Due to the potential to cause scaling, it is undesirable and therefore monitored in industrial applications, and heating and reverse osmosis systems. Designed as a more accurate alternative to chemical test kits, the HI770 provides quick, accurate results in four easy steps:
| SKU | HI770 |
|---|---|
| Product Name | Silica High-Range Checker® HC - HI770 |
| Quote Required | Yes |
| Silica Range | 0 to 200 ppm |
| Silica Resolution | 1 ppm |
| Silica Accuracy | ±2 ppm ±5% of reading |
| Silica Method | adaptation of the USEPA method 370.1 for drinking, surface and saline waters and Standard Method 4500-SiO₂ C for domestic and industrial waters. |
| Photometer/Colorimeter Light Source | LED @ 470 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 | HI770 Checker® is supplied with (2) sample cuvettes with caps, silica HR reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide. |
