The HANNA HI 770 Silica High Range Checker®HC is accurate and affordable. This portable handheld colorimeter features a resolution of 1 ppm (200 points) and ±2 ppm ±5% of reading accuracy.
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.
Details
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.
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, Industrial, Aquariums
Specifications
Range
0 to 200 ppm
Resolution
1 ppm
Accuracy @ 25°C/77°F
±2 ppm ±5% of reading
Light Source
LED @ 470 nm
Light Detector
silicon photocell
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.
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
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.