SKU:
HI 97720
Calcium Hardness Portable Photometer-meter only
$467.690
+ IVA
Disponible Pronto
Disponible para entrega hasta en 90 días.
Disponible Pronto
HI97720 is an advanced portable photometer for the measurement of calcium hardness in water. This meter offers a superior optical system that utilizes a reference detector and narrow band interference filters for extremely fast and repeatable measurements.
- No warm up time before taking a measurement
- Tutorial mode for step-by-step instructions
- CAL Check to verify meter performance
CARACTERíSTICAS DEL PRODUCTO
Water, with exception of 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. In addition, water hardness is also related to the phenomenon of pipe rusting in water heating and cooling systems, reverse osmosis, and demineralization plants.The HI97720 uses an adaptation of the Standard Methods for the Examination of Water and Wastewater, 23rd Edition, calmagite method to measure calcium hardness concentrations of up to 2.70 mg/L (ppm). When the reagent is added to samples containing calcium salts, the sample will turn a red hue; the greater the concentration, the deeper the color. The associated color change is then colorimetrically analyzed according to the Beer-Lambert Law. This principle states that light is absorbed by a complementary color, and the emitted radiation is dependent upon concentration. For calcium hardness determination, a narrow band interference filter at 525 nm allows only green light to be detected by the silicon photodetector and omits all other visible light emitted from the LED lamp. As the change in color of the reacted sample increases, absorbance of the specific wavelength of light also increases, while transmittance decreases.
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- LED that generates very little heat.
- 8 nm narrowband interference filter that is accurate to +/- 1 nm.
- Reference detector that modulates the voltage to LED for consistent light output.?
- A concave focusing lens that reduces errors from imperfections in the cuvette.
On-Screen Features
CAL CheckAdvanced features including CAL-Check to verify performance and if necessary, recalibrate.
Multiple Chemical FormsResults can be displayed in multiple chemical forms.
Setup OptionsBacklit dot matrix LCD that offers an exceptionally intuitive user interface that is easy to read and understand.
Tutorial ModeTutorial mode for step-by-step instructions to guide a first-time user in how to perform a measurement correctly.
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Peso |
0 , 5 kg |
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Marca |
BeerLine |
Brand |
BeerLine |
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Especificación | Detalle |
Código de producto | HI97720 |
Intervalo de dureza de calcio | 0.00 a 2.70 mg/L (ppm) como dureza de calcio |
Resolución de dureza de calcio | 0.01 mg/L |
Exactitud de dureza de calcio | ±0.11 mg/L ±5% de la lectura |
Método para dureza de calcio | Modificación de los Métodos Estándares para el análisis del agua y agua residual, 18ª ed. Método calmagita |
Fuente de luz | Diodo emisor de luz |
Detector de luz | Fotocelda de silicio |
Registro | 50 lecturas |
Alimentación eléctrica | Baterías alcalinas de 1.5 V AA (3 pzas.) |
Duración de la batería | > 800 mediciones (sin iluminación de la pantalla) |
Apagado automático | Después de 15 minutos de inactividad (30 minutos antes de una lectura medida) |
Condiciones ambientales | 0 a 50°C (32 a 122°F); HR máx. 95% sin condensación |
Dimensiones | 142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0") |
Peso | 380 g (13.4 oz.) |
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