HI-780 Marine pH Handheld Colorimeter, Checker®HC
HI-780 Marine pH Handheld Colorimeter, Checker®HC
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The HI-780 Checker HC is a simple, accurate, and cost effective way to measure pH in seawater. Designed as a more accurate alternative to chemical test kits, this handheld colorimeter provides quick, accurate pH testing results.
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Kuvaus
Kuvaus
pH of ocean surface water is normally 7.5.to 8.5 pH.
Over the years however, acidification tendency is to decrease 0.1 to 0.2 pH units/century. Acidification is a consequence of carbon dioxide (CO₂) absorption in seawaters and oceans. Carbon dioxide reacts with seawater to produce carbonic acid (H₂CO₃).
pH modifications affect marine life growth, reproduction, and communication. Hydrogen ions have a tendency to bond with carbonate to form bicarbonate. The greater attraction to carbonate over calcium can adversely affect skeleton building and can limit coral growth.
- Ideal for aquariums and marine biology
- Easier to use and more accurate than chemical test kits
- Small size, big convenience
Four steps. One click. Instant Readout.
1. ‘Zero’ the Checker®HC with your vial & 10ml water sample inside
2. Take the vial out and add your reagent
3. Place your vial into your Checker®HC
4. Press the button and read the results
Tekniset tiedot
Tekniset tiedot
| Range | 6.3 to 8.6 pH | |
| Resolution | 0.1 pH | |
| Accuracy @ 25°C/77°F | ±0.2 pH | |
| Light Source | LED @ 525 nm | |
| Light Detector | silicon photocell | |
| Method | colorimetric adaptation of phenol red method | |
| Auto-off | after ten minutes of non-use | |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing | |
| Battery Type | (1) 1.5V AAA | |
| Ordering Information | HI-780 Checker HC is supplied with sample cuvettes with caps (2), pH reagent starter set, battery, and instructions | |
| Accessories purchased separately | HI-780-25 Reagent set for approx. - 100 tests. HI-780-11 Calibration set |
Käyttöturvallisuustiedote
Käyttöturvallisuustiedote
Käyttöohjeet
Käyttöohjeet
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