Water, with exception to distilled water, contains dissolved salts (magnesium and calcium carbonates). The concentration of these salts determines the water hardness, which can be expressed in calcium carbonate or magnesium carbonate. The sum of these two represents the total hardness level.

The presence of dissolved salts is due to the fact that water often comes from underground sources which are in turn made up of rain water filtered through deep ground layers. Rain water eventually reaches a waterproof flooring and forms a natural tank which is also called the water bearing stratum.

By passing through the various layers of soil and rock, rain water dissolves some of the mineral substances. Hardness is a consequence of the type of rock layers which the water passes through and of its permanence in the water bearing stratum.

In addition, this parameter is also related to the phenomenon of pipe rusting in water heating and cooling systems, reverse osmosis and demineralization plants.

HANNA® offers two different meters to measure magnesium and calcium, results are expressed in CaCO_³ equivalent.

De technische specificaties van dit product:

Accuracy		±0.11 mg/L ±5% of reading
Battery Type / Life		1 x 9V / approx. 40 hours of continuous use; auto-off after 10 minutes of non use
Dimensions		180 x 83 x 46 mm (7.1 x 3.3 x 1.8")
Environment		0 to 50°C (32 to 122°F); RH max 95% non-condensing
Light Detection		Silicon Photocell
Light Life		Life of the instrument
Light Source		LED 555 nm
Method		Adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th ed.; EDTA colorimetric method. The reation between Mg and reagents causes a violet tint in the sample
Range		0.00 to 2.00 mg/L
Resolution		0.01 mg/L
Weight		290 g (10 oz.)

Accessoires bij dit product:

Oplossingen
HI93703-50	Reinigingsvloeistof voor cuvetten
Accessoires
HI710009	Blauwe schokbestendig rubberen hoes
HI710010	Oranje schokbestendig rubberen hoes
HI731318	Doekje om cuvetten te reinigen (4 *)
Reagentia
HI93719-01	reagent: Mg Hardheid-0.00-2.00 mg/L-± 100 tst.
HI93719-03	reagent: Mg Hardheid-0.00-2.00 mg/L-± 300 tst.
HI93720-01	reagent: Calcium Hardheid/0.0-2.70 mg/L-± 100 tst.
HI93720-03	reagent: Calcium Hardheid/0.0-2.70 mg/L-± 300 tst.

Selectie van andere producten uit de categorie Ion Fotometers:

Downloads bij dit product:

  Download gebruikershandleiding

  Download MSDS (datasheet)
  Download MSDS (datasheet)
  Download MSDS (datasheet)
  Download MSDS (datasheet)

  Download documentatie (Proces en in-line)

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