HI 705
Checker®HC Handheld Colorimeter – Silica Low Range
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.
1.) Step One – Add a sample to the included cuvette. Add reagent “A” and “B”
2.) Step Two – Insert sample into the Checker and zero it out
3.) Step Three – Remove sample and add reagent “C”
4.) Step Four – Reinsert sample and click the button to measure your results or…
- Press and hold the button for 3 seconds for a time reaction reading
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.
FEATURES/BENEFITS:
- Small palm-sized design
- Accurate from ±0.03ppm ± 5% of reading
- Dedicated to a single parameter
- Uses a single AAA battery
- Auto Power Off after 10 minutes in inactivity
- Built-in timer for timed reaction readings
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.
Specifications
| Range | 0.00 to 2.00 ppm |
| Resolution | 0.1 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.) |
