Description
The Hanna Marine Alkalinity (dKH) Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely on the human eye to discern differences in colour. Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine absorbance and ion concentration. This level of instrumentation also offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Marine Alkalinity Checker® measures alkalinity in dKH units, using a fixed wavelength LED and silicon photodetector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.
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: Aquaculture & Aquariums, Water Quality
Specifications
| Range | 0.0 to 20.0 dKH |
|---|---|
| Resolution | 5 ppm |
| Accuracy | ±5% of reading @ 25 °C |
| Method | Adaptation of the colourimetric EDTA method using calmagite indicator. The reaction between magnesium and the reagents causes a blue to violet tint in the sample. |
| Light source | Light Emitting Diode @ 610 nm |
| Light detector | Silicon photocell |
| Environment | 0 to 50 °C (32 to 122 °F); max. 95% RH non-condensing Prepared sample cuvette (sample plus reagents) must be 18 to 28 °C (64 to 82 °F). |
| Battery type | 1.5V AAA Alkaline |
| Auto shut-off | After 10 minutes of non-use |
| Dimensions | 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”) |
| Weight | 64 g (2.3 oz) |
| Interferences | Calcium below 300 ppm and above 500 ppm |
Included
HI783 Checker HC is supplied with:
- Sample cuvette and cap (2 pcs.)
- Marine Magnesium reagent starter kit (reagents for 25 tests)
- 1 mL graduated syringe and tip (1 pc.)
- 5 mL syringe and tip with black printing (1 pc.)
- 5 mL syringe and tip with blue printing (1 pc.)
- 1.5V AAA Alkaline battery (1 pc.)
- Instruction manual
- Quick-reference guide.
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