The HI 771 Checker®HC is a simple, accurate, and cost effective way to measure ultra-high ranges of chlorine. Designed as a more accurate alternative to chemical test kits, the HI 771 provides quick, accurate results in four easy steps.
1.) Step One – Add a sample to the included cuvette(s)
2.) Step Two – Insert sample into the Checker and zero it out
3.) Step Three – Remove sample and add reagent
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 771 uses an adaptation of the standard methods for water and wastewater 4500Cl.
Specification :
Range | 0 to 500 ppm | |
Resolution | 1 ppm | |
Accuracy (@25°C/77°F) | ±3 ppm ± 5% of reading | |
Measurement Method | Colorimetric | |
Light Source | Photodiode @525 nm | |
Light Detector | Silicon photocell | |
Method | Adaptation of the standard methods for water and wastewater 4500Cl. | |
Power Supply | Battery – 1 x 1.5V AAA | |
Power Auto Off | After 10 min. of inactivity | |
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”) | |
Dimensions | 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”) | |
Weight | 64 g (2.25 oz.) |