Alkalinity is the buffering capacity of water and ensures stability of the pH value. If the alkalinity is too high, then adding acid or base has little to no effect on the pH value. If the alkalinity is too low, the smallest addition of acid or base will cause extreme pH changes. The recommended value is 80 to 120 mg / CaCO3. The HI-7754 offers a simple, accurate and economical way to measure this.
Step one – Add a sample to the included cuvette
Step two – Insert sample into the Checker HC and press the button to zero
Step three – Remove sample and add reagent as stated in the manual
Step four – Reinsert sample and press the button to measure your results
| Range | 0 to 500 ppm | |
| Resolution | 1 ppm | |
| Accuracy (@25°C/77°F) | ±5 ppm ± 5% of reading | |
| Light Source | LED @ 610 nm | |
| Light Detector | Silicon photocell | |
| Method | Colorimetric method. The reaction causes a distinctive range of colours from yellow to greenish blue to develop. This meter has been developed to work with fresh water samples. | |
| 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”) | |
| Weight | 64 g (2.25 oz.) | |
| Ordering information: | Supplied with sample cuvettes with caps (2), alkalinity reagent starter kit (reagents for 25 tests), syringe with tip, battery, instructions and quick start guide. | |
| Reagent set | HI-7754-26 | |
| Calibration Set (certified) | HI-7754-11 |
| Valmistaja: | Hanna Instruments |
|---|---|
| Tuotekoodi: | HI-7754 |
| Paino: | 0.1 kg |
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