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:
Specifications
Silica
Range
0 to 200 ppm
Resolution
1 ppm
Accuracy
±2 ppm ±5% of reading
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.
Additional Specifications
Battery Type
1.5V AAA / 10,000 hours of continuous use
Environment
0 to 50°C (32 to 122°F); RH max 95% non-condensing
Auto-off
after ten minutes of non-use
Photometer/Colorimeter Light Source
LED @ 610 nm
Photometer/Colorimeter Light Detector
silicon photocell
Dimensions
154 x 63 x 30 mm (6.1 x 2.5 x 1.2”)
Weight
196 g (6.91 oz.)
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.
This website is available for the following countries: Algeria, Angola, Benin, Burkina Faso, Burundi, Cameroon, Cape Verde, Chad, Comoros, Côte d'Ivoire, Eritrea, eSwatini, Ethiopia, Gabon, Gambia, Ghana, Djibouti, Jordan, Guinea, Equatorial Guinea, Guinea-Bissau, Kenya, Lebanon, Liberia, Libya, Madagascar, Malawi, Mali, Morocco, Mauritania, Niger, Nigeria, Palestine, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Rwanda, São Tomé and Príncipe, Senegal, Seychelles, Sierra Leone, Somalia, Sudan, South Sudan, Tanzania, Togo, Tunisia, Uganda and Zambia.
