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The HI 705 Checker®HC is a simple, accurate, and cost effective way to measure low ranges of silica. Designed as a more accurate alternative to chemical test kits, the HI 705 provides quick, accurate results in four easy steps.
The HI 705 uses an adaptation of the ASTM D859 method of heteropoly blue method. The reaction between silica and reagents causes a blue tint in the sample.
PRIMARY APPLICATIONS:* Water Quality * Education * Environmental * Water Treatment (Boilers/Cooling Towers)
Order Information: The HI 705 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (1 bottle reagent A, 6 packets of reagent B, and 6 packets of reagent C), 1 x 1.5V AAA battery, and an instruction manual.
Product Manuals
Manual: Download
Specification :
| Range | 0.00 to 2.00 ppm | |
| Resolution | 0.01 ppm | |
| Accuracy (@25°C/77°F) | ±0.03ppm ± 5% of reading | |
| Measurement Method | Colorimetric | |
| Light Source | Photodiode @610 nm | |
| Method | Adaptation of the ASTM D859 method of heteropoly blue method | |
| Light Detector | Silicon photocell | |
| Power Supply | Auto off after 10 min. of inactivity | |
| Environment | Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing | |
| Dimensions | 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”) | |
| Weight | 64 g (2.25 oz.) |
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