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Durometre
de apa :
standard de laborator pentru utilizare frecventa in
laborator si pe teren.
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Tel. +4 021 312 7144
Fax. +4 021 312 7141 |
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Model :ML- HI 93735 |
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Total Hardness Tester |
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• Aparat pentru determinarea duritatii totale a apei in ppm, grade Germane, grade Franceze si grade Engleze.
• Duritatea totala reprezinta cantitatea totala de ioni de calciu si magneziu prezenti in apa, sub forma de saruri solubile (in principal sub forma de bicarbonati).
Acestia, prin descompunere, duc la aparitia carbonatilor respectivi, care sunt compusi greu solubili si precipita.
• Aparatul prezentat masoara duritatea totala in trei scale diferite:
0-250 ppm, 200-500 ppm, 400-750 ppm, acoperind un domeniu larg de aplicatii
• In afara de aceste unitati, duritatea se poate afisa in grade Franceze (0fH), grade Germane (0dH) si grade Engleze (0eH). |
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• Total hardness, that is the presence of magnesium and calcium, is due mainly to the run-off water dissolving these salts as it flows or filters through different strata.
• Hardness can also cause scaling of pipes in cooling and heating systems. Reverse osmosis and demineralization also increase hardness levels.
• The hardness meter, ML - HI 93735, measures total hardness in three different scales: 0 to 250, 200 to 500 and 400 to 750 ppm, covering an extensive range of applications.
• With HI 93735 hardness can be measured in ppm (mg/L) as well as in French (°fH), German (°dH) and English hardness (°eH).
• The reading is expressed directly in ppm and it is not necessary to use conversion tables and diagrams for interpretation. |
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| Caracteristici tehnice |
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| Domenii de masura |
ppm: 0...250; 200...500; 400...750; 0f: 0...25; 20...50; 40...75 0D: 0.0...13.9; 11.1...27.8; 22.2...41.7; 0E: 0.0...17.5; 14.0...35.0;28.0...52.5 |
| Rezolutie |
1 mg/L (domeniul 0...100 mg/L); 5 mg/L (domeniul 100...750 ppm) |
| Acuratete (@200C) |
5 mg/L sau 4% din valoare (domeniul 0...250 mg/L)
7 mg/L sau 3% din valoare (domeniul 200...500 mg/L)
10 mg/L sau 2% din valoare (domeniul 400...750 mg/L) |
| Sursa de radiatie |
LED, 470 nm Fotodetector Celula fotoelectrica |
| Baterie |
O baterie 9V ce asigura aprox. 40 de ore de functionare continua |
| Conditii de mediu |
0...50°C, 95% r.h. maxim fara condens |
| Dimensiuni |
180 x 83 x 46 mm |
| Greutate |
290 g |
| Metoda |
Adaptarea metodei EPA 130.1 |
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N.B. Kit de reactivi pentru 100 de teste se vinde separat |
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| Multi-Lab© SRL ROMANIA |
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